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-rw-r--r--app/comp-fe/js/bootstrap-notify.min.js2
-rw-r--r--app/comp-fe/js/bootstrap.js2317
-rw-r--r--app/comp-fe/js/circular-json.js2
-rw-r--r--app/comp-fe/js/d3.js16673
-rw-r--r--app/comp-fe/js/d3.min.js5
-rw-r--r--app/comp-fe/js/react.min.js16
-rw-r--r--app/comp-fe/js/underscore-min.js6
-rw-r--r--app/comp-fe/js/underscore-min.map0
-rw-r--r--app/comp-fe/js/underscore.js1276
9 files changed, 20297 insertions, 0 deletions
diff --git a/app/comp-fe/js/bootstrap-notify.min.js b/app/comp-fe/js/bootstrap-notify.min.js
new file mode 100644
index 0000000..f5ad385
--- /dev/null
+++ b/app/comp-fe/js/bootstrap-notify.min.js
@@ -0,0 +1,2 @@
+/* Project: Bootstrap Growl = v3.1.3 | Description: Turns standard Bootstrap alerts into "Growl-like" notifications. | Author: Mouse0270 aka Robert McIntosh | License: MIT License | Website: https://github.com/mouse0270/bootstrap-growl */
+!function(t){"function"==typeof define&&define.amd?define(["jquery"],t):t("object"==typeof exports?require("jquery"):jQuery)}(function(t){function e(e,i,n){var i={content:{message:"object"==typeof i?i.message:i,title:i.title?i.title:"",icon:i.icon?i.icon:"",url:i.url?i.url:"#",target:i.target?i.target:"-"}};n=t.extend(!0,{},i,n),this.settings=t.extend(!0,{},s,n),this._defaults=s,"-"==this.settings.content.target&&(this.settings.content.target=this.settings.url_target),this.animations={start:"webkitAnimationStart oanimationstart MSAnimationStart animationstart",end:"webkitAnimationEnd oanimationend MSAnimationEnd animationend"},"number"==typeof this.settings.offset&&(this.settings.offset={x:this.settings.offset,y:this.settings.offset}),this.init()}var s={element:"body",position:null,type:"info",allow_dismiss:!0,newest_on_top:!1,showProgressbar:!1,placement:{from:"top",align:"right"},offset:20,spacing:10,z_index:1031,delay:5e3,timer:1e3,url_target:"_blank",mouse_over:null,animate:{enter:"animated fadeInDown",exit:"animated fadeOutUp"},onShow:null,onShown:null,onClose:null,onClosed:null,icon_type:"class",template:'<div data-notify="container" class="col-xs-11 col-sm-4 alert alert-{0}" role="alert"><button type="button" aria-hidden="true" class="close" data-notify="dismiss">&times;</button><span data-notify="icon"></span> <span data-notify="title">{1}</span> <span data-notify="message">{2}</span><div class="progress" data-notify="progressbar"><div class="progress-bar progress-bar-{0}" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" style="width: 0%;"></div></div><a href="{3}" target="{4}" data-notify="url"></a></div>'};String.format=function(){for(var t=arguments[0],e=1;e<arguments.length;e++)t=t.replace(RegExp("\\{"+(e-1)+"\\}","gm"),arguments[e]);return t},t.extend(e.prototype,{init:function(){var t=this;this.buildNotify(),this.settings.content.icon&&this.setIcon(),"#"!=this.settings.content.url&&this.styleURL(),this.placement(),this.bind(),this.notify={$ele:this.$ele,update:function(e,s){var i={};"string"==typeof e?i[e]=s:i=e;for(var e in i)switch(e){case"type":this.$ele.removeClass("alert-"+t.settings.type),this.$ele.find('[data-notify="progressbar"] > .progress-bar').removeClass("progress-bar-"+t.settings.type),t.settings.type=i[e],this.$ele.addClass("alert-"+i[e]).find('[data-notify="progressbar"] > .progress-bar').addClass("progress-bar-"+i[e]);break;case"icon":var n=this.$ele.find('[data-notify="icon"]');"class"==t.settings.icon_type.toLowerCase()?n.removeClass(t.settings.content.icon).addClass(i[e]):(n.is("img")||n.find("img"),n.attr("src",i[e]));break;case"progress":var a=t.settings.delay-t.settings.delay*(i[e]/100);this.$ele.data("notify-delay",a),this.$ele.find('[data-notify="progressbar"] > div').attr("aria-valuenow",i[e]).css("width",i[e]+"%");break;case"url":this.$ele.find('[data-notify="url"]').attr("href",i[e]);break;case"target":this.$ele.find('[data-notify="url"]').attr("target",i[e]);break;default:this.$ele.find('[data-notify="'+e+'"]').html(i[e])}var o=this.$ele.outerHeight()+parseInt(t.settings.spacing)+parseInt(t.settings.offset.y);t.reposition(o)},close:function(){t.close()}}},buildNotify:function(){var e=this.settings.content;this.$ele=t(String.format(this.settings.template,this.settings.type,e.title,e.message,e.url,e.target)),this.$ele.attr("data-notify-position",this.settings.placement.from+"-"+this.settings.placement.align),this.settings.allow_dismiss||this.$ele.find('[data-notify="dismiss"]').css("display","none"),(this.settings.delay<=0&&!this.settings.showProgressbar||!this.settings.showProgressbar)&&this.$ele.find('[data-notify="progressbar"]').remove()},setIcon:function(){"class"==this.settings.icon_type.toLowerCase()?this.$ele.find('[data-notify="icon"]').addClass(this.settings.content.icon):this.$ele.find('[data-notify="icon"]').is("img")?this.$ele.find('[data-notify="icon"]').attr("src",this.settings.content.icon):this.$ele.find('[data-notify="icon"]').append('<img src="'+this.settings.content.icon+'" alt="Notify Icon" />')},styleURL:function(){this.$ele.find('[data-notify="url"]').css({backgroundImage:"url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)",height:"100%",left:"0px",position:"absolute",top:"0px",width:"100%",zIndex:this.settings.z_index+1}),this.$ele.find('[data-notify="dismiss"]').css({position:"absolute",right:"10px",top:"5px",zIndex:this.settings.z_index+2})},placement:function(){var e=this,s=this.settings.offset.y,i={display:"inline-block",margin:"0px auto",position:this.settings.position?this.settings.position:"body"===this.settings.element?"fixed":"absolute",transition:"all .5s ease-in-out",zIndex:this.settings.z_index},n=!1,a=this.settings;switch(t('[data-notify-position="'+this.settings.placement.from+"-"+this.settings.placement.align+'"]:not([data-closing="true"])').each(function(){return s=Math.max(s,parseInt(t(this).css(a.placement.from))+parseInt(t(this).outerHeight())+parseInt(a.spacing))}),1==this.settings.newest_on_top&&(s=this.settings.offset.y),i[this.settings.placement.from]=s+"px",this.settings.placement.align){case"left":case"right":i[this.settings.placement.align]=this.settings.offset.x+"px";break;case"center":i.left=0,i.right=0}this.$ele.css(i).addClass(this.settings.animate.enter),t.each(Array("webkit","moz","o","ms",""),function(t,s){e.$ele[0].style[s+"AnimationIterationCount"]=1}),t(this.settings.element).append(this.$ele),1==this.settings.newest_on_top&&(s=parseInt(s)+parseInt(this.settings.spacing)+this.$ele.outerHeight(),this.reposition(s)),t.isFunction(e.settings.onShow)&&e.settings.onShow.call(this.$ele),this.$ele.one(this.animations.start,function(){n=!0}).one(this.animations.end,function(){t.isFunction(e.settings.onShown)&&e.settings.onShown.call(this)}),setTimeout(function(){n||t.isFunction(e.settings.onShown)&&e.settings.onShown.call(this)},600)},bind:function(){var e=this;if(this.$ele.find('[data-notify="dismiss"]').on("click",function(){e.close()}),this.$ele.mouseover(function(){t(this).data("data-hover","true")}).mouseout(function(){t(this).data("data-hover","false")}),this.$ele.data("data-hover","false"),this.settings.delay>0){e.$ele.data("notify-delay",e.settings.delay);var s=setInterval(function(){var t=parseInt(e.$ele.data("notify-delay"))-e.settings.timer;if("false"===e.$ele.data("data-hover")&&"pause"==e.settings.mouse_over||"pause"!=e.settings.mouse_over){var i=(e.settings.delay-t)/e.settings.delay*100;e.$ele.data("notify-delay",t),e.$ele.find('[data-notify="progressbar"] > div').attr("aria-valuenow",i).css("width",i+"%")}t<=-e.settings.timer&&(clearInterval(s),e.close())},e.settings.timer)}},close:function(){var e=this,s=parseInt(this.$ele.css(this.settings.placement.from)),i=!1;this.$ele.data("closing","true").addClass(this.settings.animate.exit),e.reposition(s),t.isFunction(e.settings.onClose)&&e.settings.onClose.call(this.$ele),this.$ele.one(this.animations.start,function(){i=!0}).one(this.animations.end,function(){t(this).remove(),t.isFunction(e.settings.onClosed)&&e.settings.onClosed.call(this)}),setTimeout(function(){i||(e.$ele.remove(),e.settings.onClosed&&e.settings.onClosed(e.$ele))},600)},reposition:function(e){var s=this,i='[data-notify-position="'+this.settings.placement.from+"-"+this.settings.placement.align+'"]:not([data-closing="true"])',n=this.$ele.nextAll(i);1==this.settings.newest_on_top&&(n=this.$ele.prevAll(i)),n.each(function(){t(this).css(s.settings.placement.from,e),e=parseInt(e)+parseInt(s.settings.spacing)+t(this).outerHeight()})}}),t.notify=function(t,s){var i=new e(this,t,s);return i.notify},t.notifyDefaults=function(e){return s=t.extend(!0,{},s,e)},t.notifyClose=function(e){"undefined"==typeof e||"all"==e?t("[data-notify]").find('[data-notify="dismiss"]').trigger("click"):t('[data-notify-position="'+e+'"]').find('[data-notify="dismiss"]').trigger("click")}}); \ No newline at end of file
diff --git a/app/comp-fe/js/bootstrap.js b/app/comp-fe/js/bootstrap.js
new file mode 100644
index 0000000..1c88b71
--- /dev/null
+++ b/app/comp-fe/js/bootstrap.js
@@ -0,0 +1,2317 @@
+/*!
+ * Bootstrap v3.3.4 (http://getbootstrap.com)
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ */
+
+if (typeof jQuery === 'undefined') {
+ throw new Error('Bootstrap\'s JavaScript requires jQuery')
+}
+
++function ($) {
+ 'use strict';
+ var version = $.fn.jquery.split(' ')[0].split('.')
+ if ((version[0] < 2 && version[1] < 9) || (version[0] == 1 && version[1] == 9 && version[2] < 1)) {
+ throw new Error('Bootstrap\'s JavaScript requires jQuery version 1.9.1 or higher')
+ }
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: transition.js v3.3.4
+ * http://getbootstrap.com/javascript/#transitions
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // CSS TRANSITION SUPPORT (Shoutout: http://www.modernizr.com/)
+ // ============================================================
+
+ function transitionEnd() {
+ var el = document.createElement('bootstrap')
+
+ var transEndEventNames = {
+ WebkitTransition : 'webkitTransitionEnd',
+ MozTransition : 'transitionend',
+ OTransition : 'oTransitionEnd otransitionend',
+ transition : 'transitionend'
+ }
+
+ for (var name in transEndEventNames) {
+ if (el.style[name] !== undefined) {
+ return { end: transEndEventNames[name] }
+ }
+ }
+
+ return false // explicit for ie8 ( ._.)
+ }
+
+ // http://blog.alexmaccaw.com/css-transitions
+ $.fn.emulateTransitionEnd = function (duration) {
+ var called = false
+ var $el = this
+ $(this).one('bsTransitionEnd', function () { called = true })
+ var callback = function () { if (!called) $($el).trigger($.support.transition.end) }
+ setTimeout(callback, duration)
+ return this
+ }
+
+ $(function () {
+ $.support.transition = transitionEnd()
+
+ if (!$.support.transition) return
+
+ $.event.special.bsTransitionEnd = {
+ bindType: $.support.transition.end,
+ delegateType: $.support.transition.end,
+ handle: function (e) {
+ if ($(e.target).is(this)) return e.handleObj.handler.apply(this, arguments)
+ }
+ }
+ })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: alert.js v3.3.4
+ * http://getbootstrap.com/javascript/#alerts
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // ALERT CLASS DEFINITION
+ // ======================
+
+ var dismiss = '[data-dismiss="alert"]'
+ var Alert = function (el) {
+ $(el).on('click', dismiss, this.close)
+ }
+
+ Alert.VERSION = '3.3.4'
+
+ Alert.TRANSITION_DURATION = 150
+
+ Alert.prototype.close = function (e) {
+ var $this = $(this)
+ var selector = $this.attr('data-target')
+
+ if (!selector) {
+ selector = $this.attr('href')
+ selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
+ }
+
+ var $parent = $(selector)
+
+ if (e) e.preventDefault()
+
+ if (!$parent.length) {
+ $parent = $this.closest('.alert')
+ }
+
+ $parent.trigger(e = $.Event('close.bs.alert'))
+
+ if (e.isDefaultPrevented()) return
+
+ $parent.removeClass('in')
+
+ function removeElement() {
+ // detach from parent, fire event then clean up data
+ $parent.detach().trigger('closed.bs.alert').remove()
+ }
+
+ $.support.transition && $parent.hasClass('fade') ?
+ $parent
+ .one('bsTransitionEnd', removeElement)
+ .emulateTransitionEnd(Alert.TRANSITION_DURATION) :
+ removeElement()
+ }
+
+
+ // ALERT PLUGIN DEFINITION
+ // =======================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.alert')
+
+ if (!data) $this.data('bs.alert', (data = new Alert(this)))
+ if (typeof option == 'string') data[option].call($this)
+ })
+ }
+
+ var old = $.fn.alert
+
+ $.fn.alert = Plugin
+ $.fn.alert.Constructor = Alert
+
+
+ // ALERT NO CONFLICT
+ // =================
+
+ $.fn.alert.noConflict = function () {
+ $.fn.alert = old
+ return this
+ }
+
+
+ // ALERT DATA-API
+ // ==============
+
+ $(document).on('click.bs.alert.data-api', dismiss, Alert.prototype.close)
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: button.js v3.3.4
+ * http://getbootstrap.com/javascript/#buttons
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // BUTTON PUBLIC CLASS DEFINITION
+ // ==============================
+
+ var Button = function (element, options) {
+ this.$element = $(element)
+ this.options = $.extend({}, Button.DEFAULTS, options)
+ this.isLoading = false
+ }
+
+ Button.VERSION = '3.3.4'
+
+ Button.DEFAULTS = {
+ loadingText: 'loading...'
+ }
+
+ Button.prototype.setState = function (state) {
+ var d = 'disabled'
+ var $el = this.$element
+ var val = $el.is('input') ? 'val' : 'html'
+ var data = $el.data()
+
+ state = state + 'Text'
+
+ if (data.resetText == null) $el.data('resetText', $el[val]())
+
+ // push to event loop to allow forms to submit
+ setTimeout($.proxy(function () {
+ $el[val](data[state] == null ? this.options[state] : data[state])
+
+ if (state == 'loadingText') {
+ this.isLoading = true
+ $el.addClass(d).attr(d, d)
+ } else if (this.isLoading) {
+ this.isLoading = false
+ $el.removeClass(d).removeAttr(d)
+ }
+ }, this), 0)
+ }
+
+ Button.prototype.toggle = function () {
+ var changed = true
+ var $parent = this.$element.closest('[data-toggle="buttons"]')
+
+ if ($parent.length) {
+ var $input = this.$element.find('input')
+ if ($input.prop('type') == 'radio') {
+ if ($input.prop('checked') && this.$element.hasClass('active')) changed = false
+ else $parent.find('.active').removeClass('active')
+ }
+ if (changed) $input.prop('checked', !this.$element.hasClass('active')).trigger('change')
+ } else {
+ this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
+ }
+
+ if (changed) this.$element.toggleClass('active')
+ }
+
+
+ // BUTTON PLUGIN DEFINITION
+ // ========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.button')
+ var options = typeof option == 'object' && option
+
+ if (!data) $this.data('bs.button', (data = new Button(this, options)))
+
+ if (option == 'toggle') data.toggle()
+ else if (option) data.setState(option)
+ })
+ }
+
+ var old = $.fn.button
+
+ $.fn.button = Plugin
+ $.fn.button.Constructor = Button
+
+
+ // BUTTON NO CONFLICT
+ // ==================
+
+ $.fn.button.noConflict = function () {
+ $.fn.button = old
+ return this
+ }
+
+
+ // BUTTON DATA-API
+ // ===============
+
+ $(document)
+ .on('click.bs.button.data-api', '[data-toggle^="button"]', function (e) {
+ var $btn = $(e.target)
+ if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
+ Plugin.call($btn, 'toggle')
+ e.preventDefault()
+ })
+ .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
+ $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
+ })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: carousel.js v3.3.4
+ * http://getbootstrap.com/javascript/#carousel
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // CAROUSEL CLASS DEFINITION
+ // =========================
+
+ var Carousel = function (element, options) {
+ this.$element = $(element)
+ this.$indicators = this.$element.find('.carousel-indicators')
+ this.options = options
+ this.paused = null
+ this.sliding = null
+ this.interval = null
+ this.$active = null
+ this.$items = null
+
+ this.options.keyboard && this.$element.on('keydown.bs.carousel', $.proxy(this.keydown, this))
+
+ this.options.pause == 'hover' && !('ontouchstart' in document.documentElement) && this.$element
+ .on('mouseenter.bs.carousel', $.proxy(this.pause, this))
+ .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
+ }
+
+ Carousel.VERSION = '3.3.4'
+
+ Carousel.TRANSITION_DURATION = 600
+
+ Carousel.DEFAULTS = {
+ interval: 5000,
+ pause: 'hover',
+ wrap: true,
+ keyboard: true
+ }
+
+ Carousel.prototype.keydown = function (e) {
+ if (/input|textarea/i.test(e.target.tagName)) return
+ switch (e.which) {
+ case 37: this.prev(); break
+ case 39: this.next(); break
+ default: return
+ }
+
+ e.preventDefault()
+ }
+
+ Carousel.prototype.cycle = function (e) {
+ e || (this.paused = false)
+
+ this.interval && clearInterval(this.interval)
+
+ this.options.interval
+ && !this.paused
+ && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))
+
+ return this
+ }
+
+ Carousel.prototype.getItemIndex = function (item) {
+ this.$items = item.parent().children('.item')
+ return this.$items.index(item || this.$active)
+ }
+
+ Carousel.prototype.getItemForDirection = function (direction, active) {
+ var activeIndex = this.getItemIndex(active)
+ var willWrap = (direction == 'prev' && activeIndex === 0)
+ || (direction == 'next' && activeIndex == (this.$items.length - 1))
+ if (willWrap && !this.options.wrap) return active
+ var delta = direction == 'prev' ? -1 : 1
+ var itemIndex = (activeIndex + delta) % this.$items.length
+ return this.$items.eq(itemIndex)
+ }
+
+ Carousel.prototype.to = function (pos) {
+ var that = this
+ var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))
+
+ if (pos > (this.$items.length - 1) || pos < 0) return
+
+ if (this.sliding) return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) // yes, "slid"
+ if (activeIndex == pos) return this.pause().cycle()
+
+ return this.slide(pos > activeIndex ? 'next' : 'prev', this.$items.eq(pos))
+ }
+
+ Carousel.prototype.pause = function (e) {
+ e || (this.paused = true)
+
+ if (this.$element.find('.next, .prev').length && $.support.transition) {
+ this.$element.trigger($.support.transition.end)
+ this.cycle(true)
+ }
+
+ this.interval = clearInterval(this.interval)
+
+ return this
+ }
+
+ Carousel.prototype.next = function () {
+ if (this.sliding) return
+ return this.slide('next')
+ }
+
+ Carousel.prototype.prev = function () {
+ if (this.sliding) return
+ return this.slide('prev')
+ }
+
+ Carousel.prototype.slide = function (type, next) {
+ var $active = this.$element.find('.item.active')
+ var $next = next || this.getItemForDirection(type, $active)
+ var isCycling = this.interval
+ var direction = type == 'next' ? 'left' : 'right'
+ var that = this
+
+ if ($next.hasClass('active')) return (this.sliding = false)
+
+ var relatedTarget = $next[0]
+ var slideEvent = $.Event('slide.bs.carousel', {
+ relatedTarget: relatedTarget,
+ direction: direction
+ })
+ this.$element.trigger(slideEvent)
+ if (slideEvent.isDefaultPrevented()) return
+
+ this.sliding = true
+
+ isCycling && this.pause()
+
+ if (this.$indicators.length) {
+ this.$indicators.find('.active').removeClass('active')
+ var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])
+ $nextIndicator && $nextIndicator.addClass('active')
+ }
+
+ var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, "slid"
+ if ($.support.transition && this.$element.hasClass('slide')) {
+ $next.addClass(type)
+ $next[0].offsetWidth // force reflow
+ $active.addClass(direction)
+ $next.addClass(direction)
+ $active
+ .one('bsTransitionEnd', function () {
+ $next.removeClass([type, direction].join(' ')).addClass('active')
+ $active.removeClass(['active', direction].join(' '))
+ that.sliding = false
+ setTimeout(function () {
+ that.$element.trigger(slidEvent)
+ }, 0)
+ })
+ .emulateTransitionEnd(Carousel.TRANSITION_DURATION)
+ } else {
+ $active.removeClass('active')
+ $next.addClass('active')
+ this.sliding = false
+ this.$element.trigger(slidEvent)
+ }
+
+ isCycling && this.cycle()
+
+ return this
+ }
+
+
+ // CAROUSEL PLUGIN DEFINITION
+ // ==========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.carousel')
+ var options = $.extend({}, Carousel.DEFAULTS, $this.data(), typeof option == 'object' && option)
+ var action = typeof option == 'string' ? option : options.slide
+
+ if (!data) $this.data('bs.carousel', (data = new Carousel(this, options)))
+ if (typeof option == 'number') data.to(option)
+ else if (action) data[action]()
+ else if (options.interval) data.pause().cycle()
+ })
+ }
+
+ var old = $.fn.carousel
+
+ $.fn.carousel = Plugin
+ $.fn.carousel.Constructor = Carousel
+
+
+ // CAROUSEL NO CONFLICT
+ // ====================
+
+ $.fn.carousel.noConflict = function () {
+ $.fn.carousel = old
+ return this
+ }
+
+
+ // CAROUSEL DATA-API
+ // =================
+
+ var clickHandler = function (e) {
+ var href
+ var $this = $(this)
+ var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) // strip for ie7
+ if (!$target.hasClass('carousel')) return
+ var options = $.extend({}, $target.data(), $this.data())
+ var slideIndex = $this.attr('data-slide-to')
+ if (slideIndex) options.interval = false
+
+ Plugin.call($target, options)
+
+ if (slideIndex) {
+ $target.data('bs.carousel').to(slideIndex)
+ }
+
+ e.preventDefault()
+ }
+
+ $(document)
+ .on('click.bs.carousel.data-api', '[data-slide]', clickHandler)
+ .on('click.bs.carousel.data-api', '[data-slide-to]', clickHandler)
+
+ $(window).on('load', function () {
+ $('[data-ride="carousel"]').each(function () {
+ var $carousel = $(this)
+ Plugin.call($carousel, $carousel.data())
+ })
+ })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: collapse.js v3.3.4
+ * http://getbootstrap.com/javascript/#collapse
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // COLLAPSE PUBLIC CLASS DEFINITION
+ // ================================
+
+ var Collapse = function (element, options) {
+ this.$element = $(element)
+ this.options = $.extend({}, Collapse.DEFAULTS, options)
+ this.$trigger = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
+ '[data-toggle="collapse"][data-target="#' + element.id + '"]')
+ this.transitioning = null
+
+ if (this.options.parent) {
+ this.$parent = this.getParent()
+ } else {
+ this.addAriaAndCollapsedClass(this.$element, this.$trigger)
+ }
+
+ if (this.options.toggle) this.toggle()
+ }
+
+ Collapse.VERSION = '3.3.4'
+
+ Collapse.TRANSITION_DURATION = 350
+
+ Collapse.DEFAULTS = {
+ toggle: true
+ }
+
+ Collapse.prototype.dimension = function () {
+ var hasWidth = this.$element.hasClass('width')
+ return hasWidth ? 'width' : 'height'
+ }
+
+ Collapse.prototype.show = function () {
+ if (this.transitioning || this.$element.hasClass('in')) return
+
+ var activesData
+ var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
+
+ if (actives && actives.length) {
+ activesData = actives.data('bs.collapse')
+ if (activesData && activesData.transitioning) return
+ }
+
+ var startEvent = $.Event('show.bs.collapse')
+ this.$element.trigger(startEvent)
+ if (startEvent.isDefaultPrevented()) return
+
+ if (actives && actives.length) {
+ Plugin.call(actives, 'hide')
+ activesData || actives.data('bs.collapse', null)
+ }
+
+ var dimension = this.dimension()
+
+ this.$element
+ .removeClass('collapse')
+ .addClass('collapsing')[dimension](0)
+ .attr('aria-expanded', true)
+
+ this.$trigger
+ .removeClass('collapsed')
+ .attr('aria-expanded', true)
+
+ this.transitioning = 1
+
+ var complete = function () {
+ this.$element
+ .removeClass('collapsing')
+ .addClass('collapse in')[dimension]('')
+ this.transitioning = 0
+ this.$element
+ .trigger('shown.bs.collapse')
+ }
+
+ if (!$.support.transition) return complete.call(this)
+
+ var scrollSize = $.camelCase(['scroll', dimension].join('-'))
+
+ this.$element
+ .one('bsTransitionEnd', $.proxy(complete, this))
+ .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
+ }
+
+ Collapse.prototype.hide = function () {
+ if (this.transitioning || !this.$element.hasClass('in')) return
+
+ var startEvent = $.Event('hide.bs.collapse')
+ this.$element.trigger(startEvent)
+ if (startEvent.isDefaultPrevented()) return
+
+ var dimension = this.dimension()
+
+ this.$element[dimension](this.$element[dimension]())[0].offsetHeight
+
+ this.$element
+ .addClass('collapsing')
+ .removeClass('collapse in')
+ .attr('aria-expanded', false)
+
+ this.$trigger
+ .addClass('collapsed')
+ .attr('aria-expanded', false)
+
+ this.transitioning = 1
+
+ var complete = function () {
+ this.transitioning = 0
+ this.$element
+ .removeClass('collapsing')
+ .addClass('collapse')
+ .trigger('hidden.bs.collapse')
+ }
+
+ if (!$.support.transition) return complete.call(this)
+
+ this.$element
+ [dimension](0)
+ .one('bsTransitionEnd', $.proxy(complete, this))
+ .emulateTransitionEnd(Collapse.TRANSITION_DURATION)
+ }
+
+ Collapse.prototype.toggle = function () {
+ this[this.$element.hasClass('in') ? 'hide' : 'show']()
+ }
+
+ Collapse.prototype.getParent = function () {
+ return $(this.options.parent)
+ .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
+ .each($.proxy(function (i, element) {
+ var $element = $(element)
+ this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
+ }, this))
+ .end()
+ }
+
+ Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
+ var isOpen = $element.hasClass('in')
+
+ $element.attr('aria-expanded', isOpen)
+ $trigger
+ .toggleClass('collapsed', !isOpen)
+ .attr('aria-expanded', isOpen)
+ }
+
+ function getTargetFromTrigger($trigger) {
+ var href
+ var target = $trigger.attr('data-target')
+ || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
+
+ return $(target)
+ }
+
+
+ // COLLAPSE PLUGIN DEFINITION
+ // ==========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.collapse')
+ var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
+
+ if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false
+ if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.collapse
+
+ $.fn.collapse = Plugin
+ $.fn.collapse.Constructor = Collapse
+
+
+ // COLLAPSE NO CONFLICT
+ // ====================
+
+ $.fn.collapse.noConflict = function () {
+ $.fn.collapse = old
+ return this
+ }
+
+
+ // COLLAPSE DATA-API
+ // =================
+
+ $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
+ var $this = $(this)
+
+ if (!$this.attr('data-target')) e.preventDefault()
+
+ var $target = getTargetFromTrigger($this)
+ var data = $target.data('bs.collapse')
+ var option = data ? 'toggle' : $this.data()
+
+ Plugin.call($target, option)
+ })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: dropdown.js v3.3.4
+ * http://getbootstrap.com/javascript/#dropdowns
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // DROPDOWN CLASS DEFINITION
+ // =========================
+
+ var backdrop = '.dropdown-backdrop'
+ var toggle = '[data-toggle="dropdown"]'
+ var Dropdown = function (element) {
+ $(element).on('click.bs.dropdown', this.toggle)
+ }
+
+ Dropdown.VERSION = '3.3.4'
+
+ Dropdown.prototype.toggle = function (e) {
+ var $this = $(this)
+
+ if ($this.is('.disabled, :disabled')) return
+
+ var $parent = getParent($this)
+ var isActive = $parent.hasClass('open')
+
+ clearMenus()
+
+ if (!isActive) {
+ if ('ontouchstart' in document.documentElement && !$parent.closest('.navbar-nav').length) {
+ // if mobile we use a backdrop because click events don't delegate
+ $('<div class="dropdown-backdrop"/>').insertAfter($(this)).on('click', clearMenus)
+ }
+
+ var relatedTarget = { relatedTarget: this }
+ $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))
+
+ if (e.isDefaultPrevented()) return
+
+ $this
+ .trigger('focus')
+ .attr('aria-expanded', 'true')
+
+ $parent
+ .toggleClass('open')
+ .trigger('shown.bs.dropdown', relatedTarget)
+ }
+
+ return false
+ }
+
+ Dropdown.prototype.keydown = function (e) {
+ if (!/(38|40|27|32)/.test(e.which) || /input|textarea/i.test(e.target.tagName)) return
+
+ var $this = $(this)
+
+ e.preventDefault()
+ e.stopPropagation()
+
+ if ($this.is('.disabled, :disabled')) return
+
+ var $parent = getParent($this)
+ var isActive = $parent.hasClass('open')
+
+ if ((!isActive && e.which != 27) || (isActive && e.which == 27)) {
+ if (e.which == 27) $parent.find(toggle).trigger('focus')
+ return $this.trigger('click')
+ }
+
+ var desc = ' li:not(.disabled):visible a'
+ var $items = $parent.find('[role="menu"]' + desc + ', [role="listbox"]' + desc)
+
+ if (!$items.length) return
+
+ var index = $items.index(e.target)
+
+ if (e.which == 38 && index > 0) index-- // up
+ if (e.which == 40 && index < $items.length - 1) index++ // down
+ if (!~index) index = 0
+
+ $items.eq(index).trigger('focus')
+ }
+
+ function clearMenus(e) {
+ if (e && e.which === 3) return
+ $(backdrop).remove()
+ $(toggle).each(function () {
+ var $this = $(this)
+ var $parent = getParent($this)
+ var relatedTarget = { relatedTarget: this }
+
+ if (!$parent.hasClass('open')) return
+
+ $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))
+
+ if (e.isDefaultPrevented()) return
+
+ $this.attr('aria-expanded', 'false')
+ $parent.removeClass('open').trigger('hidden.bs.dropdown', relatedTarget)
+ })
+ }
+
+ function getParent($this) {
+ var selector = $this.attr('data-target')
+
+ if (!selector) {
+ selector = $this.attr('href')
+ selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
+ }
+
+ var $parent = selector && $(selector)
+
+ return $parent && $parent.length ? $parent : $this.parent()
+ }
+
+
+ // DROPDOWN PLUGIN DEFINITION
+ // ==========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.dropdown')
+
+ if (!data) $this.data('bs.dropdown', (data = new Dropdown(this)))
+ if (typeof option == 'string') data[option].call($this)
+ })
+ }
+
+ var old = $.fn.dropdown
+
+ $.fn.dropdown = Plugin
+ $.fn.dropdown.Constructor = Dropdown
+
+
+ // DROPDOWN NO CONFLICT
+ // ====================
+
+ $.fn.dropdown.noConflict = function () {
+ $.fn.dropdown = old
+ return this
+ }
+
+
+ // APPLY TO STANDARD DROPDOWN ELEMENTS
+ // ===================================
+
+ $(document)
+ .on('click.bs.dropdown.data-api', clearMenus)
+ .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
+ .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)
+ .on('keydown.bs.dropdown.data-api', toggle, Dropdown.prototype.keydown)
+ .on('keydown.bs.dropdown.data-api', '[role="menu"]', Dropdown.prototype.keydown)
+ .on('keydown.bs.dropdown.data-api', '[role="listbox"]', Dropdown.prototype.keydown)
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: modal.js v3.3.4
+ * http://getbootstrap.com/javascript/#modals
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // MODAL CLASS DEFINITION
+ // ======================
+
+ var Modal = function (element, options) {
+ this.options = options
+ this.$body = $(document.body)
+ this.$element = $(element)
+ this.$dialog = this.$element.find('.modal-dialog')
+ this.$backdrop = null
+ this.isShown = null
+ this.originalBodyPad = null
+ this.scrollbarWidth = 0
+ this.ignoreBackdropClick = false
+
+ if (this.options.remote) {
+ this.$element
+ .find('.modal-content')
+ .load(this.options.remote, $.proxy(function () {
+ this.$element.trigger('loaded.bs.modal')
+ }, this))
+ }
+ }
+
+ Modal.VERSION = '3.3.4'
+
+ Modal.TRANSITION_DURATION = 300
+ Modal.BACKDROP_TRANSITION_DURATION = 150
+
+ Modal.DEFAULTS = {
+ backdrop: true,
+ keyboard: true,
+ show: true
+ }
+
+ Modal.prototype.toggle = function (_relatedTarget) {
+ return this.isShown ? this.hide() : this.show(_relatedTarget)
+ }
+
+ Modal.prototype.show = function (_relatedTarget) {
+ var that = this
+ var e = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })
+
+ this.$element.trigger(e)
+
+ if (this.isShown || e.isDefaultPrevented()) return
+
+ this.isShown = true
+
+ this.checkScrollbar()
+ this.setScrollbar()
+ this.$body.addClass('modal-open')
+
+ this.escape()
+ this.resize()
+
+ this.$element.on('click.dismiss.bs.modal', '[data-dismiss="modal"]', $.proxy(this.hide, this))
+
+ this.$dialog.on('mousedown.dismiss.bs.modal', function () {
+ that.$element.one('mouseup.dismiss.bs.modal', function (e) {
+ if ($(e.target).is(that.$element)) that.ignoreBackdropClick = true
+ })
+ })
+
+ this.backdrop(function () {
+ var transition = $.support.transition && that.$element.hasClass('fade')
+
+ if (!that.$element.parent().length) {
+ that.$element.appendTo(that.$body) // don't move modals dom position
+ }
+
+ that.$element
+ .show()
+ .scrollTop(0)
+
+ that.adjustDialog()
+
+ if (transition) {
+ that.$element[0].offsetWidth // force reflow
+ }
+
+ that.$element
+ .addClass('in')
+ .attr('aria-hidden', false)
+
+ that.enforceFocus()
+
+ var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })
+
+ transition ?
+ that.$dialog // wait for modal to slide in
+ .one('bsTransitionEnd', function () {
+ that.$element.trigger('focus').trigger(e)
+ })
+ .emulateTransitionEnd(Modal.TRANSITION_DURATION) :
+ that.$element.trigger('focus').trigger(e)
+ })
+ }
+
+ Modal.prototype.hide = function (e) {
+ if (e) e.preventDefault()
+
+ e = $.Event('hide.bs.modal')
+
+ this.$element.trigger(e)
+
+ if (!this.isShown || e.isDefaultPrevented()) return
+
+ this.isShown = false
+
+ this.escape()
+ this.resize()
+
+ $(document).off('focusin.bs.modal')
+
+ this.$element
+ .removeClass('in')
+ .attr('aria-hidden', true)
+ .off('click.dismiss.bs.modal')
+ .off('mouseup.dismiss.bs.modal')
+
+ this.$dialog.off('mousedown.dismiss.bs.modal')
+
+ $.support.transition && this.$element.hasClass('fade') ?
+ this.$element
+ .one('bsTransitionEnd', $.proxy(this.hideModal, this))
+ .emulateTransitionEnd(Modal.TRANSITION_DURATION) :
+ this.hideModal()
+ }
+
+ Modal.prototype.enforceFocus = function () {
+ $(document)
+ .off('focusin.bs.modal') // guard against infinite focus loop
+ .on('focusin.bs.modal', $.proxy(function (e) {
+ if (this.$element[0] !== e.target && !this.$element.has(e.target).length) {
+ this.$element.trigger('focus')
+ }
+ }, this))
+ }
+
+ Modal.prototype.escape = function () {
+ if (this.isShown && this.options.keyboard) {
+ this.$element.on('keydown.dismiss.bs.modal', $.proxy(function (e) {
+ e.which == 27 && this.hide()
+ }, this))
+ } else if (!this.isShown) {
+ this.$element.off('keydown.dismiss.bs.modal')
+ }
+ }
+
+ Modal.prototype.resize = function () {
+ if (this.isShown) {
+ $(window).on('resize.bs.modal', $.proxy(this.handleUpdate, this))
+ } else {
+ $(window).off('resize.bs.modal')
+ }
+ }
+
+ Modal.prototype.hideModal = function () {
+ var that = this
+ this.$element.hide()
+ this.backdrop(function () {
+ that.$body.removeClass('modal-open')
+ that.resetAdjustments()
+ that.resetScrollbar()
+ that.$element.trigger('hidden.bs.modal')
+ })
+ }
+
+ Modal.prototype.removeBackdrop = function () {
+ this.$backdrop && this.$backdrop.remove()
+ this.$backdrop = null
+ }
+
+ Modal.prototype.backdrop = function (callback) {
+ var that = this
+ var animate = this.$element.hasClass('fade') ? 'fade' : ''
+
+ if (this.isShown && this.options.backdrop) {
+ var doAnimate = $.support.transition && animate
+
+ this.$backdrop = $('<div class="modal-backdrop ' + animate + '" />')
+ .appendTo(this.$body)
+
+ this.$element.on('click.dismiss.bs.modal', $.proxy(function (e) {
+ if (this.ignoreBackdropClick) {
+ this.ignoreBackdropClick = false
+ return
+ }
+ if (e.target !== e.currentTarget) return
+ this.options.backdrop == 'static'
+ ? this.$element[0].focus()
+ : this.hide()
+ }, this))
+
+ if (doAnimate) this.$backdrop[0].offsetWidth // force reflow
+
+ this.$backdrop.addClass('in')
+
+ if (!callback) return
+
+ doAnimate ?
+ this.$backdrop
+ .one('bsTransitionEnd', callback)
+ .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :
+ callback()
+
+ } else if (!this.isShown && this.$backdrop) {
+ this.$backdrop.removeClass('in')
+
+ var callbackRemove = function () {
+ that.removeBackdrop()
+ callback && callback()
+ }
+ $.support.transition && this.$element.hasClass('fade') ?
+ this.$backdrop
+ .one('bsTransitionEnd', callbackRemove)
+ .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :
+ callbackRemove()
+
+ } else if (callback) {
+ callback()
+ }
+ }
+
+ // these following methods are used to handle overflowing modals
+
+ Modal.prototype.handleUpdate = function () {
+ this.adjustDialog()
+ }
+
+ Modal.prototype.adjustDialog = function () {
+ var modalIsOverflowing = this.$element[0].scrollHeight > document.documentElement.clientHeight
+
+ this.$element.css({
+ paddingLeft: !this.bodyIsOverflowing && modalIsOverflowing ? this.scrollbarWidth : '',
+ paddingRight: this.bodyIsOverflowing && !modalIsOverflowing ? this.scrollbarWidth : ''
+ })
+ }
+
+ Modal.prototype.resetAdjustments = function () {
+ this.$element.css({
+ paddingLeft: '',
+ paddingRight: ''
+ })
+ }
+
+ Modal.prototype.checkScrollbar = function () {
+ var fullWindowWidth = window.innerWidth
+ if (!fullWindowWidth) { // workaround for missing window.innerWidth in IE8
+ var documentElementRect = document.documentElement.getBoundingClientRect()
+ fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left)
+ }
+ this.bodyIsOverflowing = document.body.clientWidth < fullWindowWidth
+ this.scrollbarWidth = this.measureScrollbar()
+ }
+
+ Modal.prototype.setScrollbar = function () {
+ var bodyPad = parseInt((this.$body.css('padding-right') || 0), 10)
+ this.originalBodyPad = document.body.style.paddingRight || ''
+ if (this.bodyIsOverflowing) this.$body.css('padding-right', bodyPad + this.scrollbarWidth)
+ }
+
+ Modal.prototype.resetScrollbar = function () {
+ this.$body.css('padding-right', this.originalBodyPad)
+ }
+
+ Modal.prototype.measureScrollbar = function () { // thx walsh
+ var scrollDiv = document.createElement('div')
+ scrollDiv.className = 'modal-scrollbar-measure'
+ this.$body.append(scrollDiv)
+ var scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth
+ this.$body[0].removeChild(scrollDiv)
+ return scrollbarWidth
+ }
+
+
+ // MODAL PLUGIN DEFINITION
+ // =======================
+
+ function Plugin(option, _relatedTarget) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.modal')
+ var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)
+
+ if (!data) $this.data('bs.modal', (data = new Modal(this, options)))
+ if (typeof option == 'string') data[option](_relatedTarget)
+ else if (options.show) data.show(_relatedTarget)
+ })
+ }
+
+ var old = $.fn.modal
+
+ $.fn.modal = Plugin
+ $.fn.modal.Constructor = Modal
+
+
+ // MODAL NO CONFLICT
+ // =================
+
+ $.fn.modal.noConflict = function () {
+ $.fn.modal = old
+ return this
+ }
+
+
+ // MODAL DATA-API
+ // ==============
+
+ $(document).on('click.bs.modal.data-api', '[data-toggle="modal"]', function (e) {
+ var $this = $(this)
+ var href = $this.attr('href')
+ var $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) // strip for ie7
+ var option = $target.data('bs.modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())
+
+ if ($this.is('a')) e.preventDefault()
+
+ $target.one('show.bs.modal', function (showEvent) {
+ if (showEvent.isDefaultPrevented()) return // only register focus restorer if modal will actually get shown
+ $target.one('hidden.bs.modal', function () {
+ $this.is(':visible') && $this.trigger('focus')
+ })
+ })
+ Plugin.call($target, option, this)
+ })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: tooltip.js v3.3.4
+ * http://getbootstrap.com/javascript/#tooltip
+ * Inspired by the original jQuery.tipsy by Jason Frame
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // TOOLTIP PUBLIC CLASS DEFINITION
+ // ===============================
+
+ var Tooltip = function (element, options) {
+ this.type = null
+ this.options = null
+ this.enabled = null
+ this.timeout = null
+ this.hoverState = null
+ this.$element = null
+
+ this.init('tooltip', element, options)
+ }
+
+ Tooltip.VERSION = '3.3.4'
+
+ Tooltip.TRANSITION_DURATION = 150
+
+ Tooltip.DEFAULTS = {
+ animation: true,
+ placement: 'top',
+ selector: false,
+ template: '<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
+ trigger: 'hover focus',
+ title: '',
+ delay: 0,
+ html: false,
+ container: false,
+ viewport: {
+ selector: 'body',
+ padding: 0
+ }
+ }
+
+ Tooltip.prototype.init = function (type, element, options) {
+ this.enabled = true
+ this.type = type
+ this.$element = $(element)
+ this.options = this.getOptions(options)
+ this.$viewport = this.options.viewport && $(this.options.viewport.selector || this.options.viewport)
+
+ if (this.$element[0] instanceof document.constructor && !this.options.selector) {
+ throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')
+ }
+
+ var triggers = this.options.trigger.split(' ')
+
+ for (var i = triggers.length; i--;) {
+ var trigger = triggers[i]
+
+ if (trigger == 'click') {
+ this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
+ } else if (trigger != 'manual') {
+ var eventIn = trigger == 'hover' ? 'mouseenter' : 'focusin'
+ var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'
+
+ this.$element.on(eventIn + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
+ this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
+ }
+ }
+
+ this.options.selector ?
+ (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
+ this.fixTitle()
+ }
+
+ Tooltip.prototype.getDefaults = function () {
+ return Tooltip.DEFAULTS
+ }
+
+ Tooltip.prototype.getOptions = function (options) {
+ options = $.extend({}, this.getDefaults(), this.$element.data(), options)
+
+ if (options.delay && typeof options.delay == 'number') {
+ options.delay = {
+ show: options.delay,
+ hide: options.delay
+ }
+ }
+
+ return options
+ }
+
+ Tooltip.prototype.getDelegateOptions = function () {
+ var options = {}
+ var defaults = this.getDefaults()
+
+ this._options && $.each(this._options, function (key, value) {
+ if (defaults[key] != value) options[key] = value
+ })
+
+ return options
+ }
+
+ Tooltip.prototype.enter = function (obj) {
+ var self = obj instanceof this.constructor ?
+ obj : $(obj.currentTarget).data('bs.' + this.type)
+
+ if (self && self.$tip && self.$tip.is(':visible')) {
+ self.hoverState = 'in'
+ return
+ }
+
+ if (!self) {
+ self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
+ $(obj.currentTarget).data('bs.' + this.type, self)
+ }
+
+ clearTimeout(self.timeout)
+
+ self.hoverState = 'in'
+
+ if (!self.options.delay || !self.options.delay.show) return self.show()
+
+ self.timeout = setTimeout(function () {
+ if (self.hoverState == 'in') self.show()
+ }, self.options.delay.show)
+ }
+
+ Tooltip.prototype.leave = function (obj) {
+ var self = obj instanceof this.constructor ?
+ obj : $(obj.currentTarget).data('bs.' + this.type)
+
+ if (!self) {
+ self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
+ $(obj.currentTarget).data('bs.' + this.type, self)
+ }
+
+ clearTimeout(self.timeout)
+
+ self.hoverState = 'out'
+
+ if (!self.options.delay || !self.options.delay.hide) return self.hide()
+
+ self.timeout = setTimeout(function () {
+ if (self.hoverState == 'out') self.hide()
+ }, self.options.delay.hide)
+ }
+
+ Tooltip.prototype.show = function () {
+ var e = $.Event('show.bs.' + this.type)
+
+ if (this.hasContent() && this.enabled) {
+ this.$element.trigger(e)
+
+ var inDom = $.contains(this.$element[0].ownerDocument.documentElement, this.$element[0])
+ if (e.isDefaultPrevented() || !inDom) return
+ var that = this
+
+ var $tip = this.tip()
+
+ var tipId = this.getUID(this.type)
+
+ this.setContent()
+ $tip.attr('id', tipId)
+ this.$element.attr('aria-describedby', tipId)
+
+ if (this.options.animation) $tip.addClass('fade')
+
+ var placement = typeof this.options.placement == 'function' ?
+ this.options.placement.call(this, $tip[0], this.$element[0]) :
+ this.options.placement
+
+ var autoToken = /\s?auto?\s?/i
+ var autoPlace = autoToken.test(placement)
+ if (autoPlace) placement = placement.replace(autoToken, '') || 'top'
+
+ $tip
+ .detach()
+ .css({ top: 0, left: 0, display: 'block' })
+ .addClass(placement)
+ .data('bs.' + this.type, this)
+
+ this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)
+
+ var pos = this.getPosition()
+ var actualWidth = $tip[0].offsetWidth
+ var actualHeight = $tip[0].offsetHeight
+
+ if (autoPlace) {
+ var orgPlacement = placement
+ var $container = this.options.container ? $(this.options.container) : this.$element.parent()
+ var containerDim = this.getPosition($container)
+
+ placement = placement == 'bottom' && pos.bottom + actualHeight > containerDim.bottom ? 'top' :
+ placement == 'top' && pos.top - actualHeight < containerDim.top ? 'bottom' :
+ placement == 'right' && pos.right + actualWidth > containerDim.width ? 'left' :
+ placement == 'left' && pos.left - actualWidth < containerDim.left ? 'right' :
+ placement
+
+ $tip
+ .removeClass(orgPlacement)
+ .addClass(placement)
+ }
+
+ var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)
+
+ this.applyPlacement(calculatedOffset, placement)
+
+ var complete = function () {
+ var prevHoverState = that.hoverState
+ that.$element.trigger('shown.bs.' + that.type)
+ that.hoverState = null
+
+ if (prevHoverState == 'out') that.leave(that)
+ }
+
+ $.support.transition && this.$tip.hasClass('fade') ?
+ $tip
+ .one('bsTransitionEnd', complete)
+ .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
+ complete()
+ }
+ }
+
+ Tooltip.prototype.applyPlacement = function (offset, placement) {
+ var $tip = this.tip()
+ var width = $tip[0].offsetWidth
+ var height = $tip[0].offsetHeight
+
+ // manually read margins because getBoundingClientRect includes difference
+ var marginTop = parseInt($tip.css('margin-top'), 10)
+ var marginLeft = parseInt($tip.css('margin-left'), 10)
+
+ // we must check for NaN for ie 8/9
+ if (isNaN(marginTop)) marginTop = 0
+ if (isNaN(marginLeft)) marginLeft = 0
+
+ offset.top = offset.top + marginTop
+ offset.left = offset.left + marginLeft
+
+ // $.fn.offset doesn't round pixel values
+ // so we use setOffset directly with our own function B-0
+ $.offset.setOffset($tip[0], $.extend({
+ using: function (props) {
+ $tip.css({
+ top: Math.round(props.top),
+ left: Math.round(props.left)
+ })
+ }
+ }, offset), 0)
+
+ $tip.addClass('in')
+
+ // check to see if placing tip in new offset caused the tip to resize itself
+ var actualWidth = $tip[0].offsetWidth
+ var actualHeight = $tip[0].offsetHeight
+
+ if (placement == 'top' && actualHeight != height) {
+ offset.top = offset.top + height - actualHeight
+ }
+
+ var delta = this.getViewportAdjustedDelta(placement, offset, actualWidth, actualHeight)
+
+ if (delta.left) offset.left += delta.left
+ else offset.top += delta.top
+
+ var isVertical = /top|bottom/.test(placement)
+ var arrowDelta = isVertical ? delta.left * 2 - width + actualWidth : delta.top * 2 - height + actualHeight
+ var arrowOffsetPosition = isVertical ? 'offsetWidth' : 'offsetHeight'
+
+ $tip.offset(offset)
+ this.replaceArrow(arrowDelta, $tip[0][arrowOffsetPosition], isVertical)
+ }
+
+ Tooltip.prototype.replaceArrow = function (delta, dimension, isVertical) {
+ this.arrow()
+ .css(isVertical ? 'left' : 'top', 50 * (1 - delta / dimension) + '%')
+ .css(isVertical ? 'top' : 'left', '')
+ }
+
+ Tooltip.prototype.setContent = function () {
+ var $tip = this.tip()
+ var title = this.getTitle()
+
+ $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
+ $tip.removeClass('fade in top bottom left right')
+ }
+
+ Tooltip.prototype.hide = function (callback) {
+ var that = this
+ var $tip = $(this.$tip)
+ var e = $.Event('hide.bs.' + this.type)
+
+ function complete() {
+ if (that.hoverState != 'in') $tip.detach()
+ that.$element
+ .removeAttr('aria-describedby')
+ .trigger('hidden.bs.' + that.type)
+ callback && callback()
+ }
+
+ this.$element.trigger(e)
+
+ if (e.isDefaultPrevented()) return
+
+ $tip.removeClass('in')
+
+ $.support.transition && $tip.hasClass('fade') ?
+ $tip
+ .one('bsTransitionEnd', complete)
+ .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
+ complete()
+
+ this.hoverState = null
+
+ return this
+ }
+
+ Tooltip.prototype.fixTitle = function () {
+ var $e = this.$element
+ if ($e.attr('title') || typeof ($e.attr('data-original-title')) != 'string') {
+ $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
+ }
+ }
+
+ Tooltip.prototype.hasContent = function () {
+ return this.getTitle()
+ }
+
+ Tooltip.prototype.getPosition = function ($element) {
+ $element = $element || this.$element
+
+ var el = $element[0]
+ var isBody = el.tagName == 'BODY'
+
+ var elRect = el.getBoundingClientRect()
+ if (elRect.width == null) {
+ // width and height are missing in IE8, so compute them manually; see https://github.com/twbs/bootstrap/issues/14093
+ elRect = $.extend({}, elRect, { width: elRect.right - elRect.left, height: elRect.bottom - elRect.top })
+ }
+ var elOffset = isBody ? { top: 0, left: 0 } : $element.offset()
+ var scroll = { scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop() }
+ var outerDims = isBody ? { width: $(window).width(), height: $(window).height() } : null
+
+ return $.extend({}, elRect, scroll, outerDims, elOffset)
+ }
+
+ Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
+ return placement == 'bottom' ? { top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2 } :
+ placement == 'top' ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } :
+ placement == 'left' ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
+ /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width }
+
+ }
+
+ Tooltip.prototype.getViewportAdjustedDelta = function (placement, pos, actualWidth, actualHeight) {
+ var delta = { top: 0, left: 0 }
+ if (!this.$viewport) return delta
+
+ var viewportPadding = this.options.viewport && this.options.viewport.padding || 0
+ var viewportDimensions = this.getPosition(this.$viewport)
+
+ if (/right|left/.test(placement)) {
+ var topEdgeOffset = pos.top - viewportPadding - viewportDimensions.scroll
+ var bottomEdgeOffset = pos.top + viewportPadding - viewportDimensions.scroll + actualHeight
+ if (topEdgeOffset < viewportDimensions.top) { // top overflow
+ delta.top = viewportDimensions.top - topEdgeOffset
+ } else if (bottomEdgeOffset > viewportDimensions.top + viewportDimensions.height) { // bottom overflow
+ delta.top = viewportDimensions.top + viewportDimensions.height - bottomEdgeOffset
+ }
+ } else {
+ var leftEdgeOffset = pos.left - viewportPadding
+ var rightEdgeOffset = pos.left + viewportPadding + actualWidth
+ if (leftEdgeOffset < viewportDimensions.left) { // left overflow
+ delta.left = viewportDimensions.left - leftEdgeOffset
+ } else if (rightEdgeOffset > viewportDimensions.width) { // right overflow
+ delta.left = viewportDimensions.left + viewportDimensions.width - rightEdgeOffset
+ }
+ }
+
+ return delta
+ }
+
+ Tooltip.prototype.getTitle = function () {
+ var title
+ var $e = this.$element
+ var o = this.options
+
+ title = $e.attr('data-original-title')
+ || (typeof o.title == 'function' ? o.title.call($e[0]) : o.title)
+
+ return title
+ }
+
+ Tooltip.prototype.getUID = function (prefix) {
+ do prefix += ~~(Math.random() * 1000000)
+ while (document.getElementById(prefix))
+ return prefix
+ }
+
+ Tooltip.prototype.tip = function () {
+ return (this.$tip = this.$tip || $(this.options.template))
+ }
+
+ Tooltip.prototype.arrow = function () {
+ return (this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow'))
+ }
+
+ Tooltip.prototype.enable = function () {
+ this.enabled = true
+ }
+
+ Tooltip.prototype.disable = function () {
+ this.enabled = false
+ }
+
+ Tooltip.prototype.toggleEnabled = function () {
+ this.enabled = !this.enabled
+ }
+
+ Tooltip.prototype.toggle = function (e) {
+ var self = this
+ if (e) {
+ self = $(e.currentTarget).data('bs.' + this.type)
+ if (!self) {
+ self = new this.constructor(e.currentTarget, this.getDelegateOptions())
+ $(e.currentTarget).data('bs.' + this.type, self)
+ }
+ }
+
+ self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+ }
+
+ Tooltip.prototype.destroy = function () {
+ var that = this
+ clearTimeout(this.timeout)
+ this.hide(function () {
+ that.$element.off('.' + that.type).removeData('bs.' + that.type)
+ })
+ }
+
+
+ // TOOLTIP PLUGIN DEFINITION
+ // =========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.tooltip')
+ var options = typeof option == 'object' && option
+
+ if (!data && /destroy|hide/.test(option)) return
+ if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.tooltip
+
+ $.fn.tooltip = Plugin
+ $.fn.tooltip.Constructor = Tooltip
+
+
+ // TOOLTIP NO CONFLICT
+ // ===================
+
+ $.fn.tooltip.noConflict = function () {
+ $.fn.tooltip = old
+ return this
+ }
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: popover.js v3.3.4
+ * http://getbootstrap.com/javascript/#popovers
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // POPOVER PUBLIC CLASS DEFINITION
+ // ===============================
+
+ var Popover = function (element, options) {
+ this.init('popover', element, options)
+ }
+
+ if (!$.fn.tooltip) throw new Error('Popover requires tooltip.js')
+
+ Popover.VERSION = '3.3.4'
+
+ Popover.DEFAULTS = $.extend({}, $.fn.tooltip.Constructor.DEFAULTS, {
+ placement: 'right',
+ trigger: 'click',
+ content: '',
+ template: '<div class="popover" role="tooltip"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'
+ })
+
+
+ // NOTE: POPOVER EXTENDS tooltip.js
+ // ================================
+
+ Popover.prototype = $.extend({}, $.fn.tooltip.Constructor.prototype)
+
+ Popover.prototype.constructor = Popover
+
+ Popover.prototype.getDefaults = function () {
+ return Popover.DEFAULTS
+ }
+
+ Popover.prototype.setContent = function () {
+ var $tip = this.tip()
+ var title = this.getTitle()
+ var content = this.getContent()
+
+ $tip.find('.popover-title')[this.options.html ? 'html' : 'text'](title)
+ $tip.find('.popover-content').children().detach().end()[ // we use append for html objects to maintain js events
+ this.options.html ? (typeof content == 'string' ? 'html' : 'append') : 'text'
+ ](content)
+
+ $tip.removeClass('fade top bottom left right in')
+
+ // IE8 doesn't accept hiding via the `:empty` pseudo selector, we have to do
+ // this manually by checking the contents.
+ if (!$tip.find('.popover-title').html()) $tip.find('.popover-title').hide()
+ }
+
+ Popover.prototype.hasContent = function () {
+ return this.getTitle() || this.getContent()
+ }
+
+ Popover.prototype.getContent = function () {
+ var $e = this.$element
+ var o = this.options
+
+ return $e.attr('data-content')
+ || (typeof o.content == 'function' ?
+ o.content.call($e[0]) :
+ o.content)
+ }
+
+ Popover.prototype.arrow = function () {
+ return (this.$arrow = this.$arrow || this.tip().find('.arrow'))
+ }
+
+
+ // POPOVER PLUGIN DEFINITION
+ // =========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.popover')
+ var options = typeof option == 'object' && option
+
+ if (!data && /destroy|hide/.test(option)) return
+ if (!data) $this.data('bs.popover', (data = new Popover(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.popover
+
+ $.fn.popover = Plugin
+ $.fn.popover.Constructor = Popover
+
+
+ // POPOVER NO CONFLICT
+ // ===================
+
+ $.fn.popover.noConflict = function () {
+ $.fn.popover = old
+ return this
+ }
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: scrollspy.js v3.3.4
+ * http://getbootstrap.com/javascript/#scrollspy
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // SCROLLSPY CLASS DEFINITION
+ // ==========================
+
+ function ScrollSpy(element, options) {
+ this.$body = $(document.body)
+ this.$scrollElement = $(element).is(document.body) ? $(window) : $(element)
+ this.options = $.extend({}, ScrollSpy.DEFAULTS, options)
+ this.selector = (this.options.target || '') + ' .nav li > a'
+ this.offsets = []
+ this.targets = []
+ this.activeTarget = null
+ this.scrollHeight = 0
+
+ this.$scrollElement.on('scroll.bs.scrollspy', $.proxy(this.process, this))
+ this.refresh()
+ this.process()
+ }
+
+ ScrollSpy.VERSION = '3.3.4'
+
+ ScrollSpy.DEFAULTS = {
+ offset: 10
+ }
+
+ ScrollSpy.prototype.getScrollHeight = function () {
+ return this.$scrollElement[0].scrollHeight || Math.max(this.$body[0].scrollHeight, document.documentElement.scrollHeight)
+ }
+
+ ScrollSpy.prototype.refresh = function () {
+ var that = this
+ var offsetMethod = 'offset'
+ var offsetBase = 0
+
+ this.offsets = []
+ this.targets = []
+ this.scrollHeight = this.getScrollHeight()
+
+ if (!$.isWindow(this.$scrollElement[0])) {
+ offsetMethod = 'position'
+ offsetBase = this.$scrollElement.scrollTop()
+ }
+
+ this.$body
+ .find(this.selector)
+ .map(function () {
+ var $el = $(this)
+ var href = $el.data('target') || $el.attr('href')
+ var $href = /^#./.test(href) && $(href)
+
+ return ($href
+ && $href.length
+ && $href.is(':visible')
+ && [[$href[offsetMethod]().top + offsetBase, href]]) || null
+ })
+ .sort(function (a, b) { return a[0] - b[0] })
+ .each(function () {
+ that.offsets.push(this[0])
+ that.targets.push(this[1])
+ })
+ }
+
+ ScrollSpy.prototype.process = function () {
+ var scrollTop = this.$scrollElement.scrollTop() + this.options.offset
+ var scrollHeight = this.getScrollHeight()
+ var maxScroll = this.options.offset + scrollHeight - this.$scrollElement.height()
+ var offsets = this.offsets
+ var targets = this.targets
+ var activeTarget = this.activeTarget
+ var i
+
+ if (this.scrollHeight != scrollHeight) {
+ this.refresh()
+ }
+
+ if (scrollTop >= maxScroll) {
+ return activeTarget != (i = targets[targets.length - 1]) && this.activate(i)
+ }
+
+ if (activeTarget && scrollTop < offsets[0]) {
+ this.activeTarget = null
+ return this.clear()
+ }
+
+ for (i = offsets.length; i--;) {
+ activeTarget != targets[i]
+ && scrollTop >= offsets[i]
+ && (offsets[i + 1] === undefined || scrollTop < offsets[i + 1])
+ && this.activate(targets[i])
+ }
+ }
+
+ ScrollSpy.prototype.activate = function (target) {
+ this.activeTarget = target
+
+ this.clear()
+
+ var selector = this.selector +
+ '[data-target="' + target + '"],' +
+ this.selector + '[href="' + target + '"]'
+
+ var active = $(selector)
+ .parents('li')
+ .addClass('active')
+
+ if (active.parent('.dropdown-menu').length) {
+ active = active
+ .closest('li.dropdown')
+ .addClass('active')
+ }
+
+ active.trigger('activate.bs.scrollspy')
+ }
+
+ ScrollSpy.prototype.clear = function () {
+ $(this.selector)
+ .parentsUntil(this.options.target, '.active')
+ .removeClass('active')
+ }
+
+
+ // SCROLLSPY PLUGIN DEFINITION
+ // ===========================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.scrollspy')
+ var options = typeof option == 'object' && option
+
+ if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.scrollspy
+
+ $.fn.scrollspy = Plugin
+ $.fn.scrollspy.Constructor = ScrollSpy
+
+
+ // SCROLLSPY NO CONFLICT
+ // =====================
+
+ $.fn.scrollspy.noConflict = function () {
+ $.fn.scrollspy = old
+ return this
+ }
+
+
+ // SCROLLSPY DATA-API
+ // ==================
+
+ $(window).on('load.bs.scrollspy.data-api', function () {
+ $('[data-spy="scroll"]').each(function () {
+ var $spy = $(this)
+ Plugin.call($spy, $spy.data())
+ })
+ })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: tab.js v3.3.4
+ * http://getbootstrap.com/javascript/#tabs
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // TAB CLASS DEFINITION
+ // ====================
+
+ var Tab = function (element) {
+ this.element = $(element)
+ }
+
+ Tab.VERSION = '3.3.4'
+
+ Tab.TRANSITION_DURATION = 150
+
+ Tab.prototype.show = function () {
+ var $this = this.element
+ var $ul = $this.closest('ul:not(.dropdown-menu)')
+ var selector = $this.data('target')
+
+ if (!selector) {
+ selector = $this.attr('href')
+ selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
+ }
+
+ if ($this.parent('li').hasClass('active')) return
+
+ var $previous = $ul.find('.active:last a')
+ var hideEvent = $.Event('hide.bs.tab', {
+ relatedTarget: $this[0]
+ })
+ var showEvent = $.Event('show.bs.tab', {
+ relatedTarget: $previous[0]
+ })
+
+ $previous.trigger(hideEvent)
+ $this.trigger(showEvent)
+
+ if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) return
+
+ var $target = $(selector)
+
+ this.activate($this.closest('li'), $ul)
+ this.activate($target, $target.parent(), function () {
+ $previous.trigger({
+ type: 'hidden.bs.tab',
+ relatedTarget: $this[0]
+ })
+ $this.trigger({
+ type: 'shown.bs.tab',
+ relatedTarget: $previous[0]
+ })
+ })
+ }
+
+ Tab.prototype.activate = function (element, container, callback) {
+ var $active = container.find('> .active')
+ var transition = callback
+ && $.support.transition
+ && (($active.length && $active.hasClass('fade')) || !!container.find('> .fade').length)
+
+ function next() {
+ $active
+ .removeClass('active')
+ .find('> .dropdown-menu > .active')
+ .removeClass('active')
+ .end()
+ .find('[data-toggle="tab"]')
+ .attr('aria-expanded', false)
+
+ element
+ .addClass('active')
+ .find('[data-toggle="tab"]')
+ .attr('aria-expanded', true)
+
+ if (transition) {
+ element[0].offsetWidth // reflow for transition
+ element.addClass('in')
+ } else {
+ element.removeClass('fade')
+ }
+
+ if (element.parent('.dropdown-menu').length) {
+ element
+ .closest('li.dropdown')
+ .addClass('active')
+ .end()
+ .find('[data-toggle="tab"]')
+ .attr('aria-expanded', true)
+ }
+
+ callback && callback()
+ }
+
+ $active.length && transition ?
+ $active
+ .one('bsTransitionEnd', next)
+ .emulateTransitionEnd(Tab.TRANSITION_DURATION) :
+ next()
+
+ $active.removeClass('in')
+ }
+
+
+ // TAB PLUGIN DEFINITION
+ // =====================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.tab')
+
+ if (!data) $this.data('bs.tab', (data = new Tab(this)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.tab
+
+ $.fn.tab = Plugin
+ $.fn.tab.Constructor = Tab
+
+
+ // TAB NO CONFLICT
+ // ===============
+
+ $.fn.tab.noConflict = function () {
+ $.fn.tab = old
+ return this
+ }
+
+
+ // TAB DATA-API
+ // ============
+
+ var clickHandler = function (e) {
+ e.preventDefault()
+ Plugin.call($(this), 'show')
+ }
+
+ $(document)
+ .on('click.bs.tab.data-api', '[data-toggle="tab"]', clickHandler)
+ .on('click.bs.tab.data-api', '[data-toggle="pill"]', clickHandler)
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: affix.js v3.3.4
+ * http://getbootstrap.com/javascript/#affix
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // AFFIX CLASS DEFINITION
+ // ======================
+
+ var Affix = function (element, options) {
+ this.options = $.extend({}, Affix.DEFAULTS, options)
+
+ this.$target = $(this.options.target)
+ .on('scroll.bs.affix.data-api', $.proxy(this.checkPosition, this))
+ .on('click.bs.affix.data-api', $.proxy(this.checkPositionWithEventLoop, this))
+
+ this.$element = $(element)
+ this.affixed = null
+ this.unpin = null
+ this.pinnedOffset = null
+
+ this.checkPosition()
+ }
+
+ Affix.VERSION = '3.3.4'
+
+ Affix.RESET = 'affix affix-top affix-bottom'
+
+ Affix.DEFAULTS = {
+ offset: 0,
+ target: window
+ }
+
+ Affix.prototype.getState = function (scrollHeight, height, offsetTop, offsetBottom) {
+ var scrollTop = this.$target.scrollTop()
+ var position = this.$element.offset()
+ var targetHeight = this.$target.height()
+
+ if (offsetTop != null && this.affixed == 'top') return scrollTop < offsetTop ? 'top' : false
+
+ if (this.affixed == 'bottom') {
+ if (offsetTop != null) return (scrollTop + this.unpin <= position.top) ? false : 'bottom'
+ return (scrollTop + targetHeight <= scrollHeight - offsetBottom) ? false : 'bottom'
+ }
+
+ var initializing = this.affixed == null
+ var colliderTop = initializing ? scrollTop : position.top
+ var colliderHeight = initializing ? targetHeight : height
+
+ if (offsetTop != null && scrollTop <= offsetTop) return 'top'
+ if (offsetBottom != null && (colliderTop + colliderHeight >= scrollHeight - offsetBottom)) return 'bottom'
+
+ return false
+ }
+
+ Affix.prototype.getPinnedOffset = function () {
+ if (this.pinnedOffset) return this.pinnedOffset
+ this.$element.removeClass(Affix.RESET).addClass('affix')
+ var scrollTop = this.$target.scrollTop()
+ var position = this.$element.offset()
+ return (this.pinnedOffset = position.top - scrollTop)
+ }
+
+ Affix.prototype.checkPositionWithEventLoop = function () {
+ setTimeout($.proxy(this.checkPosition, this), 1)
+ }
+
+ Affix.prototype.checkPosition = function () {
+ if (!this.$element.is(':visible')) return
+
+ var height = this.$element.height()
+ var offset = this.options.offset
+ var offsetTop = offset.top
+ var offsetBottom = offset.bottom
+ var scrollHeight = $(document.body).height()
+
+ if (typeof offset != 'object') offsetBottom = offsetTop = offset
+ if (typeof offsetTop == 'function') offsetTop = offset.top(this.$element)
+ if (typeof offsetBottom == 'function') offsetBottom = offset.bottom(this.$element)
+
+ var affix = this.getState(scrollHeight, height, offsetTop, offsetBottom)
+
+ if (this.affixed != affix) {
+ if (this.unpin != null) this.$element.css('top', '')
+
+ var affixType = 'affix' + (affix ? '-' + affix : '')
+ var e = $.Event(affixType + '.bs.affix')
+
+ this.$element.trigger(e)
+
+ if (e.isDefaultPrevented()) return
+
+ this.affixed = affix
+ this.unpin = affix == 'bottom' ? this.getPinnedOffset() : null
+
+ this.$element
+ .removeClass(Affix.RESET)
+ .addClass(affixType)
+ .trigger(affixType.replace('affix', 'affixed') + '.bs.affix')
+ }
+
+ if (affix == 'bottom') {
+ this.$element.offset({
+ top: scrollHeight - height - offsetBottom
+ })
+ }
+ }
+
+
+ // AFFIX PLUGIN DEFINITION
+ // =======================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.affix')
+ var options = typeof option == 'object' && option
+
+ if (!data) $this.data('bs.affix', (data = new Affix(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.affix
+
+ $.fn.affix = Plugin
+ $.fn.affix.Constructor = Affix
+
+
+ // AFFIX NO CONFLICT
+ // =================
+
+ $.fn.affix.noConflict = function () {
+ $.fn.affix = old
+ return this
+ }
+
+
+ // AFFIX DATA-API
+ // ==============
+
+ $(window).on('load', function () {
+ $('[data-spy="affix"]').each(function () {
+ var $spy = $(this)
+ var data = $spy.data()
+
+ data.offset = data.offset || {}
+
+ if (data.offsetBottom != null) data.offset.bottom = data.offsetBottom
+ if (data.offsetTop != null) data.offset.top = data.offsetTop
+
+ Plugin.call($spy, data)
+ })
+ })
+
+}(jQuery);
diff --git a/app/comp-fe/js/circular-json.js b/app/comp-fe/js/circular-json.js
new file mode 100644
index 0000000..5d59c75
--- /dev/null
+++ b/app/comp-fe/js/circular-json.js
@@ -0,0 +1,2 @@
+/*! (C) WebReflection Mit Style License */
+var CircularJSON=function(JSON,RegExp){var specialChar="~",safeSpecialChar="\\x"+("0"+specialChar.charCodeAt(0).toString(16)).slice(-2),escapedSafeSpecialChar="\\"+safeSpecialChar,specialCharRG=new RegExp(safeSpecialChar,"g"),safeSpecialCharRG=new RegExp(escapedSafeSpecialChar,"g"),safeStartWithSpecialCharRG=new RegExp("(?:^|([^\\\\]))"+escapedSafeSpecialChar),indexOf=[].indexOf||function(v){for(var i=this.length;i--&&this[i]!==v;);return i},$String=String;function generateReplacer(value,replacer,resolve){var path=[],all=[value],seen=[value],mapp=[resolve?specialChar:"[Circular]"],last=value,lvl=1,i;return function(key,value){if(replacer)value=replacer.call(this,key,value);if(key!==""){if(last!==this){i=lvl-indexOf.call(all,this)-1;lvl-=i;all.splice(lvl,all.length);path.splice(lvl-1,path.length);last=this}if(typeof value==="object"&&value){lvl=all.push(last=value);i=indexOf.call(seen,value);if(i<0){i=seen.push(value)-1;if(resolve){path.push((""+key).replace(specialCharRG,safeSpecialChar));mapp[i]=specialChar+path.join(specialChar)}else{mapp[i]=mapp[0]}}else{value=mapp[i]}}else{if(typeof value==="string"&&resolve){value=value.replace(safeSpecialChar,escapedSafeSpecialChar).replace(specialChar,safeSpecialChar)}}}return value}}function retrieveFromPath(current,keys){for(var i=0,length=keys.length;i<length;current=current[keys[i++].replace(safeSpecialCharRG,specialChar)]);return current}function generateReviver(reviver){return function(key,value){var isString=typeof value==="string";if(isString&&value.charAt(0)===specialChar){return new $String(value.slice(1))}if(key==="")value=regenerate(value,value,{});if(isString)value=value.replace(safeStartWithSpecialCharRG,"$1"+specialChar).replace(escapedSafeSpecialChar,safeSpecialChar);return reviver?reviver.call(this,key,value):value}}function regenerateArray(root,current,retrieve){for(var i=0,length=current.length;i<length;i++){current[i]=regenerate(root,current[i],retrieve)}return current}function regenerateObject(root,current,retrieve){for(var key in current){if(current.hasOwnProperty(key)){current[key]=regenerate(root,current[key],retrieve)}}return current}function regenerate(root,current,retrieve){return current instanceof Array?regenerateArray(root,current,retrieve):current instanceof $String?current.length?retrieve.hasOwnProperty(current)?retrieve[current]:retrieve[current]=retrieveFromPath(root,current.split(specialChar)):root:current instanceof Object?regenerateObject(root,current,retrieve):current}function stringifyRecursion(value,replacer,space,doNotResolve){return JSON.stringify(value,generateReplacer(value,replacer,!doNotResolve),space)}function parseRecursion(text,reviver){return JSON.parse(text,generateReviver(reviver))}return{stringify:stringifyRecursion,parse:parseRecursion}}(JSON,RegExp); \ No newline at end of file
diff --git a/app/comp-fe/js/d3.js b/app/comp-fe/js/d3.js
new file mode 100644
index 0000000..31e0698
--- /dev/null
+++ b/app/comp-fe/js/d3.js
@@ -0,0 +1,16673 @@
+// https://d3js.org Version 4.8.0. Copyright 2017 Mike Bostock.
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+ typeof define === 'function' && define.amd ? define(['exports'], factory) :
+ (factory((global.d3 = global.d3 || {})));
+}(this, (function (exports) { 'use strict';
+
+var version = "4.8.0";
+
+var ascending = function(a, b) {
+ return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+};
+
+var bisector = function(compare) {
+ if (compare.length === 1) compare = ascendingComparator(compare);
+ return {
+ left: function(a, x, lo, hi) {
+ if (lo == null) lo = 0;
+ if (hi == null) hi = a.length;
+ while (lo < hi) {
+ var mid = lo + hi >>> 1;
+ if (compare(a[mid], x) < 0) lo = mid + 1;
+ else hi = mid;
+ }
+ return lo;
+ },
+ right: function(a, x, lo, hi) {
+ if (lo == null) lo = 0;
+ if (hi == null) hi = a.length;
+ while (lo < hi) {
+ var mid = lo + hi >>> 1;
+ if (compare(a[mid], x) > 0) hi = mid;
+ else lo = mid + 1;
+ }
+ return lo;
+ }
+ };
+};
+
+function ascendingComparator(f) {
+ return function(d, x) {
+ return ascending(f(d), x);
+ };
+}
+
+var ascendingBisect = bisector(ascending);
+var bisectRight = ascendingBisect.right;
+var bisectLeft = ascendingBisect.left;
+
+var pairs = function(array, f) {
+ if (f == null) f = pair;
+ var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n);
+ while (i < n) pairs[i] = f(p, p = array[++i]);
+ return pairs;
+};
+
+function pair(a, b) {
+ return [a, b];
+}
+
+var cross = function(values0, values1, reduce) {
+ var n0 = values0.length,
+ n1 = values1.length,
+ values = new Array(n0 * n1),
+ i0,
+ i1,
+ i,
+ value0;
+
+ if (reduce == null) reduce = pair;
+
+ for (i0 = i = 0; i0 < n0; ++i0) {
+ for (value0 = values0[i0], i1 = 0; i1 < n1; ++i1, ++i) {
+ values[i] = reduce(value0, values1[i1]);
+ }
+ }
+
+ return values;
+};
+
+var descending = function(a, b) {
+ return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+};
+
+var number = function(x) {
+ return x === null ? NaN : +x;
+};
+
+var variance = function(values, valueof) {
+ var n = values.length,
+ m = 0,
+ i = -1,
+ mean = 0,
+ value,
+ delta,
+ sum = 0;
+
+ if (valueof == null) {
+ while (++i < n) {
+ if (!isNaN(value = number(values[i]))) {
+ delta = value - mean;
+ mean += delta / ++m;
+ sum += delta * (value - mean);
+ }
+ }
+ }
+
+ else {
+ while (++i < n) {
+ if (!isNaN(value = number(valueof(values[i], i, values)))) {
+ delta = value - mean;
+ mean += delta / ++m;
+ sum += delta * (value - mean);
+ }
+ }
+ }
+
+ if (m > 1) return sum / (m - 1);
+};
+
+var deviation = function(array, f) {
+ var v = variance(array, f);
+ return v ? Math.sqrt(v) : v;
+};
+
+var extent = function(values, valueof) {
+ var n = values.length,
+ i = -1,
+ value,
+ min,
+ max;
+
+ if (valueof == null) {
+ while (++i < n) { // Find the first comparable value.
+ if ((value = values[i]) != null && value >= value) {
+ min = max = value;
+ while (++i < n) { // Compare the remaining values.
+ if ((value = values[i]) != null) {
+ if (min > value) min = value;
+ if (max < value) max = value;
+ }
+ }
+ }
+ }
+ }
+
+ else {
+ while (++i < n) { // Find the first comparable value.
+ if ((value = valueof(values[i], i, values)) != null && value >= value) {
+ min = max = value;
+ while (++i < n) { // Compare the remaining values.
+ if ((value = valueof(values[i], i, values)) != null) {
+ if (min > value) min = value;
+ if (max < value) max = value;
+ }
+ }
+ }
+ }
+ }
+
+ return [min, max];
+};
+
+var array = Array.prototype;
+
+var slice = array.slice;
+var map = array.map;
+
+var constant = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var identity = function(x) {
+ return x;
+};
+
+var sequence = function(start, stop, step) {
+ start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step;
+
+ var i = -1,
+ n = Math.max(0, Math.ceil((stop - start) / step)) | 0,
+ range = new Array(n);
+
+ while (++i < n) {
+ range[i] = start + i * step;
+ }
+
+ return range;
+};
+
+var e10 = Math.sqrt(50);
+var e5 = Math.sqrt(10);
+var e2 = Math.sqrt(2);
+
+var ticks = function(start, stop, count) {
+ var reverse = stop < start,
+ i = -1,
+ n,
+ ticks,
+ step;
+
+ if (reverse) n = start, start = stop, stop = n;
+
+ if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return [];
+
+ if (step > 0) {
+ start = Math.ceil(start / step);
+ stop = Math.floor(stop / step);
+ ticks = new Array(n = Math.ceil(stop - start + 1));
+ while (++i < n) ticks[i] = (start + i) * step;
+ } else {
+ start = Math.floor(start * step);
+ stop = Math.ceil(stop * step);
+ ticks = new Array(n = Math.ceil(start - stop + 1));
+ while (++i < n) ticks[i] = (start - i) / step;
+ }
+
+ if (reverse) ticks.reverse();
+
+ return ticks;
+};
+
+function tickIncrement(start, stop, count) {
+ var step = (stop - start) / Math.max(0, count),
+ power = Math.floor(Math.log(step) / Math.LN10),
+ error = step / Math.pow(10, power);
+ return power >= 0
+ ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power)
+ : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1);
+}
+
+function tickStep(start, stop, count) {
+ var step0 = Math.abs(stop - start) / Math.max(0, count),
+ step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),
+ error = step0 / step1;
+ if (error >= e10) step1 *= 10;
+ else if (error >= e5) step1 *= 5;
+ else if (error >= e2) step1 *= 2;
+ return stop < start ? -step1 : step1;
+}
+
+var sturges = function(values) {
+ return Math.ceil(Math.log(values.length) / Math.LN2) + 1;
+};
+
+var histogram = function() {
+ var value = identity,
+ domain = extent,
+ threshold = sturges;
+
+ function histogram(data) {
+ var i,
+ n = data.length,
+ x,
+ values = new Array(n);
+
+ for (i = 0; i < n; ++i) {
+ values[i] = value(data[i], i, data);
+ }
+
+ var xz = domain(values),
+ x0 = xz[0],
+ x1 = xz[1],
+ tz = threshold(values, x0, x1);
+
+ // Convert number of thresholds into uniform thresholds.
+ if (!Array.isArray(tz)) {
+ tz = tickStep(x0, x1, tz);
+ tz = sequence(Math.ceil(x0 / tz) * tz, Math.floor(x1 / tz) * tz, tz); // exclusive
+ }
+
+ // Remove any thresholds outside the domain.
+ var m = tz.length;
+ while (tz[0] <= x0) tz.shift(), --m;
+ while (tz[m - 1] > x1) tz.pop(), --m;
+
+ var bins = new Array(m + 1),
+ bin;
+
+ // Initialize bins.
+ for (i = 0; i <= m; ++i) {
+ bin = bins[i] = [];
+ bin.x0 = i > 0 ? tz[i - 1] : x0;
+ bin.x1 = i < m ? tz[i] : x1;
+ }
+
+ // Assign data to bins by value, ignoring any outside the domain.
+ for (i = 0; i < n; ++i) {
+ x = values[i];
+ if (x0 <= x && x <= x1) {
+ bins[bisectRight(tz, x, 0, m)].push(data[i]);
+ }
+ }
+
+ return bins;
+ }
+
+ histogram.value = function(_) {
+ return arguments.length ? (value = typeof _ === "function" ? _ : constant(_), histogram) : value;
+ };
+
+ histogram.domain = function(_) {
+ return arguments.length ? (domain = typeof _ === "function" ? _ : constant([_[0], _[1]]), histogram) : domain;
+ };
+
+ histogram.thresholds = function(_) {
+ return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant(slice.call(_)) : constant(_), histogram) : threshold;
+ };
+
+ return histogram;
+};
+
+var threshold = function(values, p, valueof) {
+ if (valueof == null) valueof = number;
+ if (!(n = values.length)) return;
+ if ((p = +p) <= 0 || n < 2) return +valueof(values[0], 0, values);
+ if (p >= 1) return +valueof(values[n - 1], n - 1, values);
+ var n,
+ i = (n - 1) * p,
+ i0 = Math.floor(i),
+ value0 = +valueof(values[i0], i0, values),
+ value1 = +valueof(values[i0 + 1], i0 + 1, values);
+ return value0 + (value1 - value0) * (i - i0);
+};
+
+var freedmanDiaconis = function(values, min, max) {
+ values = map.call(values, number).sort(ascending);
+ return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3)));
+};
+
+var scott = function(values, min, max) {
+ return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3)));
+};
+
+var max = function(values, valueof) {
+ var n = values.length,
+ i = -1,
+ value,
+ max;
+
+ if (valueof == null) {
+ while (++i < n) { // Find the first comparable value.
+ if ((value = values[i]) != null && value >= value) {
+ max = value;
+ while (++i < n) { // Compare the remaining values.
+ if ((value = values[i]) != null && value > max) {
+ max = value;
+ }
+ }
+ }
+ }
+ }
+
+ else {
+ while (++i < n) { // Find the first comparable value.
+ if ((value = valueof(values[i], i, values)) != null && value >= value) {
+ max = value;
+ while (++i < n) { // Compare the remaining values.
+ if ((value = valueof(values[i], i, values)) != null && value > max) {
+ max = value;
+ }
+ }
+ }
+ }
+ }
+
+ return max;
+};
+
+var mean = function(values, valueof) {
+ var n = values.length,
+ m = n,
+ i = -1,
+ value,
+ sum = 0;
+
+ if (valueof == null) {
+ while (++i < n) {
+ if (!isNaN(value = number(values[i]))) sum += value;
+ else --m;
+ }
+ }
+
+ else {
+ while (++i < n) {
+ if (!isNaN(value = number(valueof(values[i], i, values)))) sum += value;
+ else --m;
+ }
+ }
+
+ if (m) return sum / m;
+};
+
+var median = function(values, valueof) {
+ var n = values.length,
+ i = -1,
+ value,
+ numbers = [];
+
+ if (valueof == null) {
+ while (++i < n) {
+ if (!isNaN(value = number(values[i]))) {
+ numbers.push(value);
+ }
+ }
+ }
+
+ else {
+ while (++i < n) {
+ if (!isNaN(value = number(valueof(values[i], i, values)))) {
+ numbers.push(value);
+ }
+ }
+ }
+
+ return threshold(numbers.sort(ascending), 0.5);
+};
+
+var merge = function(arrays) {
+ var n = arrays.length,
+ m,
+ i = -1,
+ j = 0,
+ merged,
+ array;
+
+ while (++i < n) j += arrays[i].length;
+ merged = new Array(j);
+
+ while (--n >= 0) {
+ array = arrays[n];
+ m = array.length;
+ while (--m >= 0) {
+ merged[--j] = array[m];
+ }
+ }
+
+ return merged;
+};
+
+var min = function(values, valueof) {
+ var n = values.length,
+ i = -1,
+ value,
+ min;
+
+ if (valueof == null) {
+ while (++i < n) { // Find the first comparable value.
+ if ((value = values[i]) != null && value >= value) {
+ min = value;
+ while (++i < n) { // Compare the remaining values.
+ if ((value = values[i]) != null && min > value) {
+ min = value;
+ }
+ }
+ }
+ }
+ }
+
+ else {
+ while (++i < n) { // Find the first comparable value.
+ if ((value = valueof(values[i], i, values)) != null && value >= value) {
+ min = value;
+ while (++i < n) { // Compare the remaining values.
+ if ((value = valueof(values[i], i, values)) != null && min > value) {
+ min = value;
+ }
+ }
+ }
+ }
+ }
+
+ return min;
+};
+
+var permute = function(array, indexes) {
+ var i = indexes.length, permutes = new Array(i);
+ while (i--) permutes[i] = array[indexes[i]];
+ return permutes;
+};
+
+var scan = function(values, compare) {
+ if (!(n = values.length)) return;
+ var n,
+ i = 0,
+ j = 0,
+ xi,
+ xj = values[j];
+
+ if (compare == null) compare = ascending;
+
+ while (++i < n) {
+ if (compare(xi = values[i], xj) < 0 || compare(xj, xj) !== 0) {
+ xj = xi, j = i;
+ }
+ }
+
+ if (compare(xj, xj) === 0) return j;
+};
+
+var shuffle = function(array, i0, i1) {
+ var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0),
+ t,
+ i;
+
+ while (m) {
+ i = Math.random() * m-- | 0;
+ t = array[m + i0];
+ array[m + i0] = array[i + i0];
+ array[i + i0] = t;
+ }
+
+ return array;
+};
+
+var sum = function(values, valueof) {
+ var n = values.length,
+ i = -1,
+ value,
+ sum = 0;
+
+ if (valueof == null) {
+ while (++i < n) {
+ if (value = +values[i]) sum += value; // Note: zero and null are equivalent.
+ }
+ }
+
+ else {
+ while (++i < n) {
+ if (value = +valueof(values[i], i, values)) sum += value;
+ }
+ }
+
+ return sum;
+};
+
+var transpose = function(matrix) {
+ if (!(n = matrix.length)) return [];
+ for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) {
+ for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) {
+ row[j] = matrix[j][i];
+ }
+ }
+ return transpose;
+};
+
+function length(d) {
+ return d.length;
+}
+
+var zip = function() {
+ return transpose(arguments);
+};
+
+var slice$1 = Array.prototype.slice;
+
+var identity$1 = function(x) {
+ return x;
+};
+
+var top = 1;
+var right = 2;
+var bottom = 3;
+var left = 4;
+var epsilon = 1e-6;
+
+function translateX(x) {
+ return "translate(" + x + ",0)";
+}
+
+function translateY(y) {
+ return "translate(0," + y + ")";
+}
+
+function center(scale) {
+ var offset = scale.bandwidth() / 2;
+ if (scale.round()) offset = Math.round(offset);
+ return function(d) {
+ return scale(d) + offset;
+ };
+}
+
+function entering() {
+ return !this.__axis;
+}
+
+function axis(orient, scale) {
+ var tickArguments = [],
+ tickValues = null,
+ tickFormat = null,
+ tickSizeInner = 6,
+ tickSizeOuter = 6,
+ tickPadding = 3,
+ k = orient === top || orient === left ? -1 : 1,
+ x, y = orient === left || orient === right ? (x = "x", "y") : (x = "y", "x"),
+ transform = orient === top || orient === bottom ? translateX : translateY;
+
+ function axis(context) {
+ var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,
+ format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$1) : tickFormat,
+ spacing = Math.max(tickSizeInner, 0) + tickPadding,
+ range = scale.range(),
+ range0 = range[0] + 0.5,
+ range1 = range[range.length - 1] + 0.5,
+ position = (scale.bandwidth ? center : identity$1)(scale.copy()),
+ selection = context.selection ? context.selection() : context,
+ path = selection.selectAll(".domain").data([null]),
+ tick = selection.selectAll(".tick").data(values, scale).order(),
+ tickExit = tick.exit(),
+ tickEnter = tick.enter().append("g").attr("class", "tick"),
+ line = tick.select("line"),
+ text = tick.select("text");
+
+ path = path.merge(path.enter().insert("path", ".tick")
+ .attr("class", "domain")
+ .attr("stroke", "#000"));
+
+ tick = tick.merge(tickEnter);
+
+ line = line.merge(tickEnter.append("line")
+ .attr("stroke", "#000")
+ .attr(x + "2", k * tickSizeInner)
+ .attr(y + "1", 0.5)
+ .attr(y + "2", 0.5));
+
+ text = text.merge(tickEnter.append("text")
+ .attr("fill", "#000")
+ .attr(x, k * spacing)
+ .attr(y, 0.5)
+ .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em"));
+
+ if (context !== selection) {
+ path = path.transition(context);
+ tick = tick.transition(context);
+ line = line.transition(context);
+ text = text.transition(context);
+
+ tickExit = tickExit.transition(context)
+ .attr("opacity", epsilon)
+ .attr("transform", function(d) { return isFinite(d = position(d)) ? transform(d) : this.getAttribute("transform"); });
+
+ tickEnter
+ .attr("opacity", epsilon)
+ .attr("transform", function(d) { var p = this.parentNode.__axis; return transform(p && isFinite(p = p(d)) ? p : position(d)); });
+ }
+
+ tickExit.remove();
+
+ path
+ .attr("d", orient === left || orient == right
+ ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter
+ : "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter);
+
+ tick
+ .attr("opacity", 1)
+ .attr("transform", function(d) { return transform(position(d)); });
+
+ line
+ .attr(x + "2", k * tickSizeInner);
+
+ text
+ .attr(x, k * spacing)
+ .text(format);
+
+ selection.filter(entering)
+ .attr("fill", "none")
+ .attr("font-size", 10)
+ .attr("font-family", "sans-serif")
+ .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle");
+
+ selection
+ .each(function() { this.__axis = position; });
+ }
+
+ axis.scale = function(_) {
+ return arguments.length ? (scale = _, axis) : scale;
+ };
+
+ axis.ticks = function() {
+ return tickArguments = slice$1.call(arguments), axis;
+ };
+
+ axis.tickArguments = function(_) {
+ return arguments.length ? (tickArguments = _ == null ? [] : slice$1.call(_), axis) : tickArguments.slice();
+ };
+
+ axis.tickValues = function(_) {
+ return arguments.length ? (tickValues = _ == null ? null : slice$1.call(_), axis) : tickValues && tickValues.slice();
+ };
+
+ axis.tickFormat = function(_) {
+ return arguments.length ? (tickFormat = _, axis) : tickFormat;
+ };
+
+ axis.tickSize = function(_) {
+ return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;
+ };
+
+ axis.tickSizeInner = function(_) {
+ return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;
+ };
+
+ axis.tickSizeOuter = function(_) {
+ return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;
+ };
+
+ axis.tickPadding = function(_) {
+ return arguments.length ? (tickPadding = +_, axis) : tickPadding;
+ };
+
+ return axis;
+}
+
+function axisTop(scale) {
+ return axis(top, scale);
+}
+
+function axisRight(scale) {
+ return axis(right, scale);
+}
+
+function axisBottom(scale) {
+ return axis(bottom, scale);
+}
+
+function axisLeft(scale) {
+ return axis(left, scale);
+}
+
+var noop = {value: function() {}};
+
+function dispatch() {
+ for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {
+ if (!(t = arguments[i] + "") || (t in _)) throw new Error("illegal type: " + t);
+ _[t] = [];
+ }
+ return new Dispatch(_);
+}
+
+function Dispatch(_) {
+ this._ = _;
+}
+
+function parseTypenames(typenames, types) {
+ return typenames.trim().split(/^|\s+/).map(function(t) {
+ var name = "", i = t.indexOf(".");
+ if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
+ if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);
+ return {type: t, name: name};
+ });
+}
+
+Dispatch.prototype = dispatch.prototype = {
+ constructor: Dispatch,
+ on: function(typename, callback) {
+ var _ = this._,
+ T = parseTypenames(typename + "", _),
+ t,
+ i = -1,
+ n = T.length;
+
+ // If no callback was specified, return the callback of the given type and name.
+ if (arguments.length < 2) {
+ while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t;
+ return;
+ }
+
+ // If a type was specified, set the callback for the given type and name.
+ // Otherwise, if a null callback was specified, remove callbacks of the given name.
+ if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);
+ while (++i < n) {
+ if (t = (typename = T[i]).type) _[t] = set(_[t], typename.name, callback);
+ else if (callback == null) for (t in _) _[t] = set(_[t], typename.name, null);
+ }
+
+ return this;
+ },
+ copy: function() {
+ var copy = {}, _ = this._;
+ for (var t in _) copy[t] = _[t].slice();
+ return new Dispatch(copy);
+ },
+ call: function(type, that) {
+ if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];
+ if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
+ for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
+ },
+ apply: function(type, that, args) {
+ if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
+ for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
+ }
+};
+
+function get(type, name) {
+ for (var i = 0, n = type.length, c; i < n; ++i) {
+ if ((c = type[i]).name === name) {
+ return c.value;
+ }
+ }
+}
+
+function set(type, name, callback) {
+ for (var i = 0, n = type.length; i < n; ++i) {
+ if (type[i].name === name) {
+ type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1));
+ break;
+ }
+ }
+ if (callback != null) type.push({name: name, value: callback});
+ return type;
+}
+
+var xhtml = "http://www.w3.org/1999/xhtml";
+
+var namespaces = {
+ svg: "http://www.w3.org/2000/svg",
+ xhtml: xhtml,
+ xlink: "http://www.w3.org/1999/xlink",
+ xml: "http://www.w3.org/XML/1998/namespace",
+ xmlns: "http://www.w3.org/2000/xmlns/"
+};
+
+var namespace = function(name) {
+ var prefix = name += "", i = prefix.indexOf(":");
+ if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
+ return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name;
+};
+
+function creatorInherit(name) {
+ return function() {
+ var document = this.ownerDocument,
+ uri = this.namespaceURI;
+ return uri === xhtml && document.documentElement.namespaceURI === xhtml
+ ? document.createElement(name)
+ : document.createElementNS(uri, name);
+ };
+}
+
+function creatorFixed(fullname) {
+ return function() {
+ return this.ownerDocument.createElementNS(fullname.space, fullname.local);
+ };
+}
+
+var creator = function(name) {
+ var fullname = namespace(name);
+ return (fullname.local
+ ? creatorFixed
+ : creatorInherit)(fullname);
+};
+
+var nextId = 0;
+
+function local$1() {
+ return new Local;
+}
+
+function Local() {
+ this._ = "@" + (++nextId).toString(36);
+}
+
+Local.prototype = local$1.prototype = {
+ constructor: Local,
+ get: function(node) {
+ var id = this._;
+ while (!(id in node)) if (!(node = node.parentNode)) return;
+ return node[id];
+ },
+ set: function(node, value) {
+ return node[this._] = value;
+ },
+ remove: function(node) {
+ return this._ in node && delete node[this._];
+ },
+ toString: function() {
+ return this._;
+ }
+};
+
+var matcher = function(selector) {
+ return function() {
+ return this.matches(selector);
+ };
+};
+
+if (typeof document !== "undefined") {
+ var element = document.documentElement;
+ if (!element.matches) {
+ var vendorMatches = element.webkitMatchesSelector
+ || element.msMatchesSelector
+ || element.mozMatchesSelector
+ || element.oMatchesSelector;
+ matcher = function(selector) {
+ return function() {
+ return vendorMatches.call(this, selector);
+ };
+ };
+ }
+}
+
+var matcher$1 = matcher;
+
+var filterEvents = {};
+
+exports.event = null;
+
+if (typeof document !== "undefined") {
+ var element$1 = document.documentElement;
+ if (!("onmouseenter" in element$1)) {
+ filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"};
+ }
+}
+
+function filterContextListener(listener, index, group) {
+ listener = contextListener(listener, index, group);
+ return function(event) {
+ var related = event.relatedTarget;
+ if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {
+ listener.call(this, event);
+ }
+ };
+}
+
+function contextListener(listener, index, group) {
+ return function(event1) {
+ var event0 = exports.event; // Events can be reentrant (e.g., focus).
+ exports.event = event1;
+ try {
+ listener.call(this, this.__data__, index, group);
+ } finally {
+ exports.event = event0;
+ }
+ };
+}
+
+function parseTypenames$1(typenames) {
+ return typenames.trim().split(/^|\s+/).map(function(t) {
+ var name = "", i = t.indexOf(".");
+ if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
+ return {type: t, name: name};
+ });
+}
+
+function onRemove(typename) {
+ return function() {
+ var on = this.__on;
+ if (!on) return;
+ for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
+ if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
+ this.removeEventListener(o.type, o.listener, o.capture);
+ } else {
+ on[++i] = o;
+ }
+ }
+ if (++i) on.length = i;
+ else delete this.__on;
+ };
+}
+
+function onAdd(typename, value, capture) {
+ var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;
+ return function(d, i, group) {
+ var on = this.__on, o, listener = wrap(value, i, group);
+ if (on) for (var j = 0, m = on.length; j < m; ++j) {
+ if ((o = on[j]).type === typename.type && o.name === typename.name) {
+ this.removeEventListener(o.type, o.listener, o.capture);
+ this.addEventListener(o.type, o.listener = listener, o.capture = capture);
+ o.value = value;
+ return;
+ }
+ }
+ this.addEventListener(typename.type, listener, capture);
+ o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};
+ if (!on) this.__on = [o];
+ else on.push(o);
+ };
+}
+
+var selection_on = function(typename, value, capture) {
+ var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t;
+
+ if (arguments.length < 2) {
+ var on = this.node().__on;
+ if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
+ for (i = 0, o = on[j]; i < n; ++i) {
+ if ((t = typenames[i]).type === o.type && t.name === o.name) {
+ return o.value;
+ }
+ }
+ }
+ return;
+ }
+
+ on = value ? onAdd : onRemove;
+ if (capture == null) capture = false;
+ for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));
+ return this;
+};
+
+function customEvent(event1, listener, that, args) {
+ var event0 = exports.event;
+ event1.sourceEvent = exports.event;
+ exports.event = event1;
+ try {
+ return listener.apply(that, args);
+ } finally {
+ exports.event = event0;
+ }
+}
+
+var sourceEvent = function() {
+ var current = exports.event, source;
+ while (source = current.sourceEvent) current = source;
+ return current;
+};
+
+var point = function(node, event) {
+ var svg = node.ownerSVGElement || node;
+
+ if (svg.createSVGPoint) {
+ var point = svg.createSVGPoint();
+ point.x = event.clientX, point.y = event.clientY;
+ point = point.matrixTransform(node.getScreenCTM().inverse());
+ return [point.x, point.y];
+ }
+
+ var rect = node.getBoundingClientRect();
+ return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];
+};
+
+var mouse = function(node) {
+ var event = sourceEvent();
+ if (event.changedTouches) event = event.changedTouches[0];
+ return point(node, event);
+};
+
+function none() {}
+
+var selector = function(selector) {
+ return selector == null ? none : function() {
+ return this.querySelector(selector);
+ };
+};
+
+var selection_select = function(select) {
+ if (typeof select !== "function") select = selector(select);
+
+ for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
+ if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
+ if ("__data__" in node) subnode.__data__ = node.__data__;
+ subgroup[i] = subnode;
+ }
+ }
+ }
+
+ return new Selection(subgroups, this._parents);
+};
+
+function empty$1() {
+ return [];
+}
+
+var selectorAll = function(selector) {
+ return selector == null ? empty$1 : function() {
+ return this.querySelectorAll(selector);
+ };
+};
+
+var selection_selectAll = function(select) {
+ if (typeof select !== "function") select = selectorAll(select);
+
+ for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
+ if (node = group[i]) {
+ subgroups.push(select.call(node, node.__data__, i, group));
+ parents.push(node);
+ }
+ }
+ }
+
+ return new Selection(subgroups, parents);
+};
+
+var selection_filter = function(match) {
+ if (typeof match !== "function") match = matcher$1(match);
+
+ for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
+ if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
+ subgroup.push(node);
+ }
+ }
+ }
+
+ return new Selection(subgroups, this._parents);
+};
+
+var sparse = function(update) {
+ return new Array(update.length);
+};
+
+var selection_enter = function() {
+ return new Selection(this._enter || this._groups.map(sparse), this._parents);
+};
+
+function EnterNode(parent, datum) {
+ this.ownerDocument = parent.ownerDocument;
+ this.namespaceURI = parent.namespaceURI;
+ this._next = null;
+ this._parent = parent;
+ this.__data__ = datum;
+}
+
+EnterNode.prototype = {
+ constructor: EnterNode,
+ appendChild: function(child) { return this._parent.insertBefore(child, this._next); },
+ insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },
+ querySelector: function(selector) { return this._parent.querySelector(selector); },
+ querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }
+};
+
+var constant$1 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var keyPrefix = "$"; // Protect against keys like “__proto__”.
+
+function bindIndex(parent, group, enter, update, exit, data) {
+ var i = 0,
+ node,
+ groupLength = group.length,
+ dataLength = data.length;
+
+ // Put any non-null nodes that fit into update.
+ // Put any null nodes into enter.
+ // Put any remaining data into enter.
+ for (; i < dataLength; ++i) {
+ if (node = group[i]) {
+ node.__data__ = data[i];
+ update[i] = node;
+ } else {
+ enter[i] = new EnterNode(parent, data[i]);
+ }
+ }
+
+ // Put any non-null nodes that don’t fit into exit.
+ for (; i < groupLength; ++i) {
+ if (node = group[i]) {
+ exit[i] = node;
+ }
+ }
+}
+
+function bindKey(parent, group, enter, update, exit, data, key) {
+ var i,
+ node,
+ nodeByKeyValue = {},
+ groupLength = group.length,
+ dataLength = data.length,
+ keyValues = new Array(groupLength),
+ keyValue;
+
+ // Compute the key for each node.
+ // If multiple nodes have the same key, the duplicates are added to exit.
+ for (i = 0; i < groupLength; ++i) {
+ if (node = group[i]) {
+ keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);
+ if (keyValue in nodeByKeyValue) {
+ exit[i] = node;
+ } else {
+ nodeByKeyValue[keyValue] = node;
+ }
+ }
+ }
+
+ // Compute the key for each datum.
+ // If there a node associated with this key, join and add it to update.
+ // If there is not (or the key is a duplicate), add it to enter.
+ for (i = 0; i < dataLength; ++i) {
+ keyValue = keyPrefix + key.call(parent, data[i], i, data);
+ if (node = nodeByKeyValue[keyValue]) {
+ update[i] = node;
+ node.__data__ = data[i];
+ nodeByKeyValue[keyValue] = null;
+ } else {
+ enter[i] = new EnterNode(parent, data[i]);
+ }
+ }
+
+ // Add any remaining nodes that were not bound to data to exit.
+ for (i = 0; i < groupLength; ++i) {
+ if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {
+ exit[i] = node;
+ }
+ }
+}
+
+var selection_data = function(value, key) {
+ if (!value) {
+ data = new Array(this.size()), j = -1;
+ this.each(function(d) { data[++j] = d; });
+ return data;
+ }
+
+ var bind = key ? bindKey : bindIndex,
+ parents = this._parents,
+ groups = this._groups;
+
+ if (typeof value !== "function") value = constant$1(value);
+
+ for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
+ var parent = parents[j],
+ group = groups[j],
+ groupLength = group.length,
+ data = value.call(parent, parent && parent.__data__, j, parents),
+ dataLength = data.length,
+ enterGroup = enter[j] = new Array(dataLength),
+ updateGroup = update[j] = new Array(dataLength),
+ exitGroup = exit[j] = new Array(groupLength);
+
+ bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
+
+ // Now connect the enter nodes to their following update node, such that
+ // appendChild can insert the materialized enter node before this node,
+ // rather than at the end of the parent node.
+ for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
+ if (previous = enterGroup[i0]) {
+ if (i0 >= i1) i1 = i0 + 1;
+ while (!(next = updateGroup[i1]) && ++i1 < dataLength);
+ previous._next = next || null;
+ }
+ }
+ }
+
+ update = new Selection(update, parents);
+ update._enter = enter;
+ update._exit = exit;
+ return update;
+};
+
+var selection_exit = function() {
+ return new Selection(this._exit || this._groups.map(sparse), this._parents);
+};
+
+var selection_merge = function(selection) {
+
+ for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
+ for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
+ if (node = group0[i] || group1[i]) {
+ merge[i] = node;
+ }
+ }
+ }
+
+ for (; j < m0; ++j) {
+ merges[j] = groups0[j];
+ }
+
+ return new Selection(merges, this._parents);
+};
+
+var selection_order = function() {
+
+ for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
+ for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
+ if (node = group[i]) {
+ if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
+ next = node;
+ }
+ }
+ }
+
+ return this;
+};
+
+var selection_sort = function(compare) {
+ if (!compare) compare = ascending$1;
+
+ function compareNode(a, b) {
+ return a && b ? compare(a.__data__, b.__data__) : !a - !b;
+ }
+
+ for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
+ if (node = group[i]) {
+ sortgroup[i] = node;
+ }
+ }
+ sortgroup.sort(compareNode);
+ }
+
+ return new Selection(sortgroups, this._parents).order();
+};
+
+function ascending$1(a, b) {
+ return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+}
+
+var selection_call = function() {
+ var callback = arguments[0];
+ arguments[0] = this;
+ callback.apply(null, arguments);
+ return this;
+};
+
+var selection_nodes = function() {
+ var nodes = new Array(this.size()), i = -1;
+ this.each(function() { nodes[++i] = this; });
+ return nodes;
+};
+
+var selection_node = function() {
+
+ for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
+ for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
+ var node = group[i];
+ if (node) return node;
+ }
+ }
+
+ return null;
+};
+
+var selection_size = function() {
+ var size = 0;
+ this.each(function() { ++size; });
+ return size;
+};
+
+var selection_empty = function() {
+ return !this.node();
+};
+
+var selection_each = function(callback) {
+
+ for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
+ for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
+ if (node = group[i]) callback.call(node, node.__data__, i, group);
+ }
+ }
+
+ return this;
+};
+
+function attrRemove(name) {
+ return function() {
+ this.removeAttribute(name);
+ };
+}
+
+function attrRemoveNS(fullname) {
+ return function() {
+ this.removeAttributeNS(fullname.space, fullname.local);
+ };
+}
+
+function attrConstant(name, value) {
+ return function() {
+ this.setAttribute(name, value);
+ };
+}
+
+function attrConstantNS(fullname, value) {
+ return function() {
+ this.setAttributeNS(fullname.space, fullname.local, value);
+ };
+}
+
+function attrFunction(name, value) {
+ return function() {
+ var v = value.apply(this, arguments);
+ if (v == null) this.removeAttribute(name);
+ else this.setAttribute(name, v);
+ };
+}
+
+function attrFunctionNS(fullname, value) {
+ return function() {
+ var v = value.apply(this, arguments);
+ if (v == null) this.removeAttributeNS(fullname.space, fullname.local);
+ else this.setAttributeNS(fullname.space, fullname.local, v);
+ };
+}
+
+var selection_attr = function(name, value) {
+ var fullname = namespace(name);
+
+ if (arguments.length < 2) {
+ var node = this.node();
+ return fullname.local
+ ? node.getAttributeNS(fullname.space, fullname.local)
+ : node.getAttribute(fullname);
+ }
+
+ return this.each((value == null
+ ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function"
+ ? (fullname.local ? attrFunctionNS : attrFunction)
+ : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value));
+};
+
+var window = function(node) {
+ return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node
+ || (node.document && node) // node is a Window
+ || node.defaultView; // node is a Document
+};
+
+function styleRemove(name) {
+ return function() {
+ this.style.removeProperty(name);
+ };
+}
+
+function styleConstant(name, value, priority) {
+ return function() {
+ this.style.setProperty(name, value, priority);
+ };
+}
+
+function styleFunction(name, value, priority) {
+ return function() {
+ var v = value.apply(this, arguments);
+ if (v == null) this.style.removeProperty(name);
+ else this.style.setProperty(name, v, priority);
+ };
+}
+
+var selection_style = function(name, value, priority) {
+ var node;
+ return arguments.length > 1
+ ? this.each((value == null
+ ? styleRemove : typeof value === "function"
+ ? styleFunction
+ : styleConstant)(name, value, priority == null ? "" : priority))
+ : window(node = this.node())
+ .getComputedStyle(node, null)
+ .getPropertyValue(name);
+};
+
+function propertyRemove(name) {
+ return function() {
+ delete this[name];
+ };
+}
+
+function propertyConstant(name, value) {
+ return function() {
+ this[name] = value;
+ };
+}
+
+function propertyFunction(name, value) {
+ return function() {
+ var v = value.apply(this, arguments);
+ if (v == null) delete this[name];
+ else this[name] = v;
+ };
+}
+
+var selection_property = function(name, value) {
+ return arguments.length > 1
+ ? this.each((value == null
+ ? propertyRemove : typeof value === "function"
+ ? propertyFunction
+ : propertyConstant)(name, value))
+ : this.node()[name];
+};
+
+function classArray(string) {
+ return string.trim().split(/^|\s+/);
+}
+
+function classList(node) {
+ return node.classList || new ClassList(node);
+}
+
+function ClassList(node) {
+ this._node = node;
+ this._names = classArray(node.getAttribute("class") || "");
+}
+
+ClassList.prototype = {
+ add: function(name) {
+ var i = this._names.indexOf(name);
+ if (i < 0) {
+ this._names.push(name);
+ this._node.setAttribute("class", this._names.join(" "));
+ }
+ },
+ remove: function(name) {
+ var i = this._names.indexOf(name);
+ if (i >= 0) {
+ this._names.splice(i, 1);
+ this._node.setAttribute("class", this._names.join(" "));
+ }
+ },
+ contains: function(name) {
+ return this._names.indexOf(name) >= 0;
+ }
+};
+
+function classedAdd(node, names) {
+ var list = classList(node), i = -1, n = names.length;
+ while (++i < n) list.add(names[i]);
+}
+
+function classedRemove(node, names) {
+ var list = classList(node), i = -1, n = names.length;
+ while (++i < n) list.remove(names[i]);
+}
+
+function classedTrue(names) {
+ return function() {
+ classedAdd(this, names);
+ };
+}
+
+function classedFalse(names) {
+ return function() {
+ classedRemove(this, names);
+ };
+}
+
+function classedFunction(names, value) {
+ return function() {
+ (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);
+ };
+}
+
+var selection_classed = function(name, value) {
+ var names = classArray(name + "");
+
+ if (arguments.length < 2) {
+ var list = classList(this.node()), i = -1, n = names.length;
+ while (++i < n) if (!list.contains(names[i])) return false;
+ return true;
+ }
+
+ return this.each((typeof value === "function"
+ ? classedFunction : value
+ ? classedTrue
+ : classedFalse)(names, value));
+};
+
+function textRemove() {
+ this.textContent = "";
+}
+
+function textConstant(value) {
+ return function() {
+ this.textContent = value;
+ };
+}
+
+function textFunction(value) {
+ return function() {
+ var v = value.apply(this, arguments);
+ this.textContent = v == null ? "" : v;
+ };
+}
+
+var selection_text = function(value) {
+ return arguments.length
+ ? this.each(value == null
+ ? textRemove : (typeof value === "function"
+ ? textFunction
+ : textConstant)(value))
+ : this.node().textContent;
+};
+
+function htmlRemove() {
+ this.innerHTML = "";
+}
+
+function htmlConstant(value) {
+ return function() {
+ this.innerHTML = value;
+ };
+}
+
+function htmlFunction(value) {
+ return function() {
+ var v = value.apply(this, arguments);
+ this.innerHTML = v == null ? "" : v;
+ };
+}
+
+var selection_html = function(value) {
+ return arguments.length
+ ? this.each(value == null
+ ? htmlRemove : (typeof value === "function"
+ ? htmlFunction
+ : htmlConstant)(value))
+ : this.node().innerHTML;
+};
+
+function raise() {
+ if (this.nextSibling) this.parentNode.appendChild(this);
+}
+
+var selection_raise = function() {
+ return this.each(raise);
+};
+
+function lower() {
+ if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
+}
+
+var selection_lower = function() {
+ return this.each(lower);
+};
+
+var selection_append = function(name) {
+ var create = typeof name === "function" ? name : creator(name);
+ return this.select(function() {
+ return this.appendChild(create.apply(this, arguments));
+ });
+};
+
+function constantNull() {
+ return null;
+}
+
+var selection_insert = function(name, before) {
+ var create = typeof name === "function" ? name : creator(name),
+ select = before == null ? constantNull : typeof before === "function" ? before : selector(before);
+ return this.select(function() {
+ return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
+ });
+};
+
+function remove() {
+ var parent = this.parentNode;
+ if (parent) parent.removeChild(this);
+}
+
+var selection_remove = function() {
+ return this.each(remove);
+};
+
+var selection_datum = function(value) {
+ return arguments.length
+ ? this.property("__data__", value)
+ : this.node().__data__;
+};
+
+function dispatchEvent(node, type, params) {
+ var window$$1 = window(node),
+ event = window$$1.CustomEvent;
+
+ if (event) {
+ event = new event(type, params);
+ } else {
+ event = window$$1.document.createEvent("Event");
+ if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;
+ else event.initEvent(type, false, false);
+ }
+
+ node.dispatchEvent(event);
+}
+
+function dispatchConstant(type, params) {
+ return function() {
+ return dispatchEvent(this, type, params);
+ };
+}
+
+function dispatchFunction(type, params) {
+ return function() {
+ return dispatchEvent(this, type, params.apply(this, arguments));
+ };
+}
+
+var selection_dispatch = function(type, params) {
+ return this.each((typeof params === "function"
+ ? dispatchFunction
+ : dispatchConstant)(type, params));
+};
+
+var root = [null];
+
+function Selection(groups, parents) {
+ this._groups = groups;
+ this._parents = parents;
+}
+
+function selection() {
+ return new Selection([[document.documentElement]], root);
+}
+
+Selection.prototype = selection.prototype = {
+ constructor: Selection,
+ select: selection_select,
+ selectAll: selection_selectAll,
+ filter: selection_filter,
+ data: selection_data,
+ enter: selection_enter,
+ exit: selection_exit,
+ merge: selection_merge,
+ order: selection_order,
+ sort: selection_sort,
+ call: selection_call,
+ nodes: selection_nodes,
+ node: selection_node,
+ size: selection_size,
+ empty: selection_empty,
+ each: selection_each,
+ attr: selection_attr,
+ style: selection_style,
+ property: selection_property,
+ classed: selection_classed,
+ text: selection_text,
+ html: selection_html,
+ raise: selection_raise,
+ lower: selection_lower,
+ append: selection_append,
+ insert: selection_insert,
+ remove: selection_remove,
+ datum: selection_datum,
+ on: selection_on,
+ dispatch: selection_dispatch
+};
+
+var select = function(selector) {
+ return typeof selector === "string"
+ ? new Selection([[document.querySelector(selector)]], [document.documentElement])
+ : new Selection([[selector]], root);
+};
+
+var selectAll = function(selector) {
+ return typeof selector === "string"
+ ? new Selection([document.querySelectorAll(selector)], [document.documentElement])
+ : new Selection([selector == null ? [] : selector], root);
+};
+
+var touch = function(node, touches, identifier) {
+ if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches;
+
+ for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) {
+ if ((touch = touches[i]).identifier === identifier) {
+ return point(node, touch);
+ }
+ }
+
+ return null;
+};
+
+var touches = function(node, touches) {
+ if (touches == null) touches = sourceEvent().touches;
+
+ for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) {
+ points[i] = point(node, touches[i]);
+ }
+
+ return points;
+};
+
+function nopropagation() {
+ exports.event.stopImmediatePropagation();
+}
+
+var noevent = function() {
+ exports.event.preventDefault();
+ exports.event.stopImmediatePropagation();
+};
+
+var dragDisable = function(view) {
+ var root = view.document.documentElement,
+ selection$$1 = select(view).on("dragstart.drag", noevent, true);
+ if ("onselectstart" in root) {
+ selection$$1.on("selectstart.drag", noevent, true);
+ } else {
+ root.__noselect = root.style.MozUserSelect;
+ root.style.MozUserSelect = "none";
+ }
+};
+
+function yesdrag(view, noclick) {
+ var root = view.document.documentElement,
+ selection$$1 = select(view).on("dragstart.drag", null);
+ if (noclick) {
+ selection$$1.on("click.drag", noevent, true);
+ setTimeout(function() { selection$$1.on("click.drag", null); }, 0);
+ }
+ if ("onselectstart" in root) {
+ selection$$1.on("selectstart.drag", null);
+ } else {
+ root.style.MozUserSelect = root.__noselect;
+ delete root.__noselect;
+ }
+}
+
+var constant$2 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) {
+ this.target = target;
+ this.type = type;
+ this.subject = subject;
+ this.identifier = id;
+ this.active = active;
+ this.x = x;
+ this.y = y;
+ this.dx = dx;
+ this.dy = dy;
+ this._ = dispatch;
+}
+
+DragEvent.prototype.on = function() {
+ var value = this._.on.apply(this._, arguments);
+ return value === this._ ? this : value;
+};
+
+// Ignore right-click, since that should open the context menu.
+function defaultFilter$1() {
+ return !exports.event.button;
+}
+
+function defaultContainer() {
+ return this.parentNode;
+}
+
+function defaultSubject(d) {
+ return d == null ? {x: exports.event.x, y: exports.event.y} : d;
+}
+
+var drag = function() {
+ var filter = defaultFilter$1,
+ container = defaultContainer,
+ subject = defaultSubject,
+ gestures = {},
+ listeners = dispatch("start", "drag", "end"),
+ active = 0,
+ mousemoving,
+ touchending;
+
+ function drag(selection$$1) {
+ selection$$1
+ .on("mousedown.drag", mousedowned)
+ .on("touchstart.drag", touchstarted)
+ .on("touchmove.drag", touchmoved)
+ .on("touchend.drag touchcancel.drag", touchended)
+ .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)");
+ }
+
+ function mousedowned() {
+ if (touchending || !filter.apply(this, arguments)) return;
+ var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments);
+ if (!gesture) return;
+ select(exports.event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true);
+ dragDisable(exports.event.view);
+ nopropagation();
+ mousemoving = false;
+ gesture("start");
+ }
+
+ function mousemoved() {
+ noevent();
+ mousemoving = true;
+ gestures.mouse("drag");
+ }
+
+ function mouseupped() {
+ select(exports.event.view).on("mousemove.drag mouseup.drag", null);
+ yesdrag(exports.event.view, mousemoving);
+ noevent();
+ gestures.mouse("end");
+ }
+
+ function touchstarted() {
+ if (!filter.apply(this, arguments)) return;
+ var touches$$1 = exports.event.changedTouches,
+ c = container.apply(this, arguments),
+ n = touches$$1.length, i, gesture;
+
+ for (i = 0; i < n; ++i) {
+ if (gesture = beforestart(touches$$1[i].identifier, c, touch, this, arguments)) {
+ nopropagation();
+ gesture("start");
+ }
+ }
+ }
+
+ function touchmoved() {
+ var touches$$1 = exports.event.changedTouches,
+ n = touches$$1.length, i, gesture;
+
+ for (i = 0; i < n; ++i) {
+ if (gesture = gestures[touches$$1[i].identifier]) {
+ noevent();
+ gesture("drag");
+ }
+ }
+ }
+
+ function touchended() {
+ var touches$$1 = exports.event.changedTouches,
+ n = touches$$1.length, i, gesture;
+
+ if (touchending) clearTimeout(touchending);
+ touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!
+ for (i = 0; i < n; ++i) {
+ if (gesture = gestures[touches$$1[i].identifier]) {
+ nopropagation();
+ gesture("end");
+ }
+ }
+ }
+
+ function beforestart(id, container, point, that, args) {
+ var p = point(container, id), s, dx, dy,
+ sublisteners = listeners.copy();
+
+ if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() {
+ if ((exports.event.subject = s = subject.apply(that, args)) == null) return false;
+ dx = s.x - p[0] || 0;
+ dy = s.y - p[1] || 0;
+ return true;
+ })) return;
+
+ return function gesture(type) {
+ var p0 = p, n;
+ switch (type) {
+ case "start": gestures[id] = gesture, n = active++; break;
+ case "end": delete gestures[id], --active; // nobreak
+ case "drag": p = point(container, id), n = active; break;
+ }
+ customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]);
+ };
+ }
+
+ drag.filter = function(_) {
+ return arguments.length ? (filter = typeof _ === "function" ? _ : constant$2(!!_), drag) : filter;
+ };
+
+ drag.container = function(_) {
+ return arguments.length ? (container = typeof _ === "function" ? _ : constant$2(_), drag) : container;
+ };
+
+ drag.subject = function(_) {
+ return arguments.length ? (subject = typeof _ === "function" ? _ : constant$2(_), drag) : subject;
+ };
+
+ drag.on = function() {
+ var value = listeners.on.apply(listeners, arguments);
+ return value === listeners ? drag : value;
+ };
+
+ return drag;
+};
+
+var define = function(constructor, factory, prototype) {
+ constructor.prototype = factory.prototype = prototype;
+ prototype.constructor = constructor;
+};
+
+function extend(parent, definition) {
+ var prototype = Object.create(parent.prototype);
+ for (var key in definition) prototype[key] = definition[key];
+ return prototype;
+}
+
+function Color() {}
+
+var darker = 0.7;
+var brighter = 1 / darker;
+
+var reI = "\\s*([+-]?\\d+)\\s*";
+var reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*";
+var reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*";
+var reHex3 = /^#([0-9a-f]{3})$/;
+var reHex6 = /^#([0-9a-f]{6})$/;
+var reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$");
+var reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$");
+var reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$");
+var reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$");
+var reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$");
+var reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");
+
+var named = {
+ aliceblue: 0xf0f8ff,
+ antiquewhite: 0xfaebd7,
+ aqua: 0x00ffff,
+ aquamarine: 0x7fffd4,
+ azure: 0xf0ffff,
+ beige: 0xf5f5dc,
+ bisque: 0xffe4c4,
+ black: 0x000000,
+ blanchedalmond: 0xffebcd,
+ blue: 0x0000ff,
+ blueviolet: 0x8a2be2,
+ brown: 0xa52a2a,
+ burlywood: 0xdeb887,
+ cadetblue: 0x5f9ea0,
+ chartreuse: 0x7fff00,
+ chocolate: 0xd2691e,
+ coral: 0xff7f50,
+ cornflowerblue: 0x6495ed,
+ cornsilk: 0xfff8dc,
+ crimson: 0xdc143c,
+ cyan: 0x00ffff,
+ darkblue: 0x00008b,
+ darkcyan: 0x008b8b,
+ darkgoldenrod: 0xb8860b,
+ darkgray: 0xa9a9a9,
+ darkgreen: 0x006400,
+ darkgrey: 0xa9a9a9,
+ darkkhaki: 0xbdb76b,
+ darkmagenta: 0x8b008b,
+ darkolivegreen: 0x556b2f,
+ darkorange: 0xff8c00,
+ darkorchid: 0x9932cc,
+ darkred: 0x8b0000,
+ darksalmon: 0xe9967a,
+ darkseagreen: 0x8fbc8f,
+ darkslateblue: 0x483d8b,
+ darkslategray: 0x2f4f4f,
+ darkslategrey: 0x2f4f4f,
+ darkturquoise: 0x00ced1,
+ darkviolet: 0x9400d3,
+ deeppink: 0xff1493,
+ deepskyblue: 0x00bfff,
+ dimgray: 0x696969,
+ dimgrey: 0x696969,
+ dodgerblue: 0x1e90ff,
+ firebrick: 0xb22222,
+ floralwhite: 0xfffaf0,
+ forestgreen: 0x228b22,
+ fuchsia: 0xff00ff,
+ gainsboro: 0xdcdcdc,
+ ghostwhite: 0xf8f8ff,
+ gold: 0xffd700,
+ goldenrod: 0xdaa520,
+ gray: 0x808080,
+ green: 0x008000,
+ greenyellow: 0xadff2f,
+ grey: 0x808080,
+ honeydew: 0xf0fff0,
+ hotpink: 0xff69b4,
+ indianred: 0xcd5c5c,
+ indigo: 0x4b0082,
+ ivory: 0xfffff0,
+ khaki: 0xf0e68c,
+ lavender: 0xe6e6fa,
+ lavenderblush: 0xfff0f5,
+ lawngreen: 0x7cfc00,
+ lemonchiffon: 0xfffacd,
+ lightblue: 0xadd8e6,
+ lightcoral: 0xf08080,
+ lightcyan: 0xe0ffff,
+ lightgoldenrodyellow: 0xfafad2,
+ lightgray: 0xd3d3d3,
+ lightgreen: 0x90ee90,
+ lightgrey: 0xd3d3d3,
+ lightpink: 0xffb6c1,
+ lightsalmon: 0xffa07a,
+ lightseagreen: 0x20b2aa,
+ lightskyblue: 0x87cefa,
+ lightslategray: 0x778899,
+ lightslategrey: 0x778899,
+ lightsteelblue: 0xb0c4de,
+ lightyellow: 0xffffe0,
+ lime: 0x00ff00,
+ limegreen: 0x32cd32,
+ linen: 0xfaf0e6,
+ magenta: 0xff00ff,
+ maroon: 0x800000,
+ mediumaquamarine: 0x66cdaa,
+ mediumblue: 0x0000cd,
+ mediumorchid: 0xba55d3,
+ mediumpurple: 0x9370db,
+ mediumseagreen: 0x3cb371,
+ mediumslateblue: 0x7b68ee,
+ mediumspringgreen: 0x00fa9a,
+ mediumturquoise: 0x48d1cc,
+ mediumvioletred: 0xc71585,
+ midnightblue: 0x191970,
+ mintcream: 0xf5fffa,
+ mistyrose: 0xffe4e1,
+ moccasin: 0xffe4b5,
+ navajowhite: 0xffdead,
+ navy: 0x000080,
+ oldlace: 0xfdf5e6,
+ olive: 0x808000,
+ olivedrab: 0x6b8e23,
+ orange: 0xffa500,
+ orangered: 0xff4500,
+ orchid: 0xda70d6,
+ palegoldenrod: 0xeee8aa,
+ palegreen: 0x98fb98,
+ paleturquoise: 0xafeeee,
+ palevioletred: 0xdb7093,
+ papayawhip: 0xffefd5,
+ peachpuff: 0xffdab9,
+ peru: 0xcd853f,
+ pink: 0xffc0cb,
+ plum: 0xdda0dd,
+ powderblue: 0xb0e0e6,
+ purple: 0x800080,
+ rebeccapurple: 0x663399,
+ red: 0xff0000,
+ rosybrown: 0xbc8f8f,
+ royalblue: 0x4169e1,
+ saddlebrown: 0x8b4513,
+ salmon: 0xfa8072,
+ sandybrown: 0xf4a460,
+ seagreen: 0x2e8b57,
+ seashell: 0xfff5ee,
+ sienna: 0xa0522d,
+ silver: 0xc0c0c0,
+ skyblue: 0x87ceeb,
+ slateblue: 0x6a5acd,
+ slategray: 0x708090,
+ slategrey: 0x708090,
+ snow: 0xfffafa,
+ springgreen: 0x00ff7f,
+ steelblue: 0x4682b4,
+ tan: 0xd2b48c,
+ teal: 0x008080,
+ thistle: 0xd8bfd8,
+ tomato: 0xff6347,
+ turquoise: 0x40e0d0,
+ violet: 0xee82ee,
+ wheat: 0xf5deb3,
+ white: 0xffffff,
+ whitesmoke: 0xf5f5f5,
+ yellow: 0xffff00,
+ yellowgreen: 0x9acd32
+};
+
+define(Color, color, {
+ displayable: function() {
+ return this.rgb().displayable();
+ },
+ toString: function() {
+ return this.rgb() + "";
+ }
+});
+
+function color(format) {
+ var m;
+ format = (format + "").trim().toLowerCase();
+ return (m = reHex3.exec(format)) ? (m = parseInt(m[1], 16), new Rgb((m >> 8 & 0xf) | (m >> 4 & 0x0f0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1)) // #f00
+ : (m = reHex6.exec(format)) ? rgbn(parseInt(m[1], 16)) // #ff0000
+ : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)
+ : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)
+ : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)
+ : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)
+ : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)
+ : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)
+ : named.hasOwnProperty(format) ? rgbn(named[format])
+ : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0)
+ : null;
+}
+
+function rgbn(n) {
+ return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);
+}
+
+function rgba(r, g, b, a) {
+ if (a <= 0) r = g = b = NaN;
+ return new Rgb(r, g, b, a);
+}
+
+function rgbConvert(o) {
+ if (!(o instanceof Color)) o = color(o);
+ if (!o) return new Rgb;
+ o = o.rgb();
+ return new Rgb(o.r, o.g, o.b, o.opacity);
+}
+
+function rgb(r, g, b, opacity) {
+ return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);
+}
+
+function Rgb(r, g, b, opacity) {
+ this.r = +r;
+ this.g = +g;
+ this.b = +b;
+ this.opacity = +opacity;
+}
+
+define(Rgb, rgb, extend(Color, {
+ brighter: function(k) {
+ k = k == null ? brighter : Math.pow(brighter, k);
+ return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
+ },
+ darker: function(k) {
+ k = k == null ? darker : Math.pow(darker, k);
+ return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
+ },
+ rgb: function() {
+ return this;
+ },
+ displayable: function() {
+ return (0 <= this.r && this.r <= 255)
+ && (0 <= this.g && this.g <= 255)
+ && (0 <= this.b && this.b <= 255)
+ && (0 <= this.opacity && this.opacity <= 1);
+ },
+ toString: function() {
+ var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
+ return (a === 1 ? "rgb(" : "rgba(")
+ + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", "
+ + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", "
+ + Math.max(0, Math.min(255, Math.round(this.b) || 0))
+ + (a === 1 ? ")" : ", " + a + ")");
+ }
+}));
+
+function hsla(h, s, l, a) {
+ if (a <= 0) h = s = l = NaN;
+ else if (l <= 0 || l >= 1) h = s = NaN;
+ else if (s <= 0) h = NaN;
+ return new Hsl(h, s, l, a);
+}
+
+function hslConvert(o) {
+ if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
+ if (!(o instanceof Color)) o = color(o);
+ if (!o) return new Hsl;
+ if (o instanceof Hsl) return o;
+ o = o.rgb();
+ var r = o.r / 255,
+ g = o.g / 255,
+ b = o.b / 255,
+ min = Math.min(r, g, b),
+ max = Math.max(r, g, b),
+ h = NaN,
+ s = max - min,
+ l = (max + min) / 2;
+ if (s) {
+ if (r === max) h = (g - b) / s + (g < b) * 6;
+ else if (g === max) h = (b - r) / s + 2;
+ else h = (r - g) / s + 4;
+ s /= l < 0.5 ? max + min : 2 - max - min;
+ h *= 60;
+ } else {
+ s = l > 0 && l < 1 ? 0 : h;
+ }
+ return new Hsl(h, s, l, o.opacity);
+}
+
+function hsl(h, s, l, opacity) {
+ return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
+}
+
+function Hsl(h, s, l, opacity) {
+ this.h = +h;
+ this.s = +s;
+ this.l = +l;
+ this.opacity = +opacity;
+}
+
+define(Hsl, hsl, extend(Color, {
+ brighter: function(k) {
+ k = k == null ? brighter : Math.pow(brighter, k);
+ return new Hsl(this.h, this.s, this.l * k, this.opacity);
+ },
+ darker: function(k) {
+ k = k == null ? darker : Math.pow(darker, k);
+ return new Hsl(this.h, this.s, this.l * k, this.opacity);
+ },
+ rgb: function() {
+ var h = this.h % 360 + (this.h < 0) * 360,
+ s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
+ l = this.l,
+ m2 = l + (l < 0.5 ? l : 1 - l) * s,
+ m1 = 2 * l - m2;
+ return new Rgb(
+ hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),
+ hsl2rgb(h, m1, m2),
+ hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),
+ this.opacity
+ );
+ },
+ displayable: function() {
+ return (0 <= this.s && this.s <= 1 || isNaN(this.s))
+ && (0 <= this.l && this.l <= 1)
+ && (0 <= this.opacity && this.opacity <= 1);
+ }
+}));
+
+/* From FvD 13.37, CSS Color Module Level 3 */
+function hsl2rgb(h, m1, m2) {
+ return (h < 60 ? m1 + (m2 - m1) * h / 60
+ : h < 180 ? m2
+ : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60
+ : m1) * 255;
+}
+
+var deg2rad = Math.PI / 180;
+var rad2deg = 180 / Math.PI;
+
+var Kn = 18;
+var Xn = 0.950470;
+var Yn = 1;
+var Zn = 1.088830;
+var t0 = 4 / 29;
+var t1 = 6 / 29;
+var t2 = 3 * t1 * t1;
+var t3 = t1 * t1 * t1;
+
+function labConvert(o) {
+ if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity);
+ if (o instanceof Hcl) {
+ var h = o.h * deg2rad;
+ return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity);
+ }
+ if (!(o instanceof Rgb)) o = rgbConvert(o);
+ var b = rgb2xyz(o.r),
+ a = rgb2xyz(o.g),
+ l = rgb2xyz(o.b),
+ x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn),
+ y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.0721750 * l) / Yn),
+ z = xyz2lab((0.0193339 * b + 0.1191920 * a + 0.9503041 * l) / Zn);
+ return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity);
+}
+
+function lab(l, a, b, opacity) {
+ return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity);
+}
+
+function Lab(l, a, b, opacity) {
+ this.l = +l;
+ this.a = +a;
+ this.b = +b;
+ this.opacity = +opacity;
+}
+
+define(Lab, lab, extend(Color, {
+ brighter: function(k) {
+ return new Lab(this.l + Kn * (k == null ? 1 : k), this.a, this.b, this.opacity);
+ },
+ darker: function(k) {
+ return new Lab(this.l - Kn * (k == null ? 1 : k), this.a, this.b, this.opacity);
+ },
+ rgb: function() {
+ var y = (this.l + 16) / 116,
+ x = isNaN(this.a) ? y : y + this.a / 500,
+ z = isNaN(this.b) ? y : y - this.b / 200;
+ y = Yn * lab2xyz(y);
+ x = Xn * lab2xyz(x);
+ z = Zn * lab2xyz(z);
+ return new Rgb(
+ xyz2rgb( 3.2404542 * x - 1.5371385 * y - 0.4985314 * z), // D65 -> sRGB
+ xyz2rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z),
+ xyz2rgb( 0.0556434 * x - 0.2040259 * y + 1.0572252 * z),
+ this.opacity
+ );
+ }
+}));
+
+function xyz2lab(t) {
+ return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0;
+}
+
+function lab2xyz(t) {
+ return t > t1 ? t * t * t : t2 * (t - t0);
+}
+
+function xyz2rgb(x) {
+ return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055);
+}
+
+function rgb2xyz(x) {
+ return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
+}
+
+function hclConvert(o) {
+ if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity);
+ if (!(o instanceof Lab)) o = labConvert(o);
+ var h = Math.atan2(o.b, o.a) * rad2deg;
+ return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity);
+}
+
+function hcl(h, c, l, opacity) {
+ return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity);
+}
+
+function Hcl(h, c, l, opacity) {
+ this.h = +h;
+ this.c = +c;
+ this.l = +l;
+ this.opacity = +opacity;
+}
+
+define(Hcl, hcl, extend(Color, {
+ brighter: function(k) {
+ return new Hcl(this.h, this.c, this.l + Kn * (k == null ? 1 : k), this.opacity);
+ },
+ darker: function(k) {
+ return new Hcl(this.h, this.c, this.l - Kn * (k == null ? 1 : k), this.opacity);
+ },
+ rgb: function() {
+ return labConvert(this).rgb();
+ }
+}));
+
+var A = -0.14861;
+var B = +1.78277;
+var C = -0.29227;
+var D = -0.90649;
+var E = +1.97294;
+var ED = E * D;
+var EB = E * B;
+var BC_DA = B * C - D * A;
+
+function cubehelixConvert(o) {
+ if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity);
+ if (!(o instanceof Rgb)) o = rgbConvert(o);
+ var r = o.r / 255,
+ g = o.g / 255,
+ b = o.b / 255,
+ l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB),
+ bl = b - l,
+ k = (E * (g - l) - C * bl) / D,
+ s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1
+ h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN;
+ return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity);
+}
+
+function cubehelix(h, s, l, opacity) {
+ return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity);
+}
+
+function Cubehelix(h, s, l, opacity) {
+ this.h = +h;
+ this.s = +s;
+ this.l = +l;
+ this.opacity = +opacity;
+}
+
+define(Cubehelix, cubehelix, extend(Color, {
+ brighter: function(k) {
+ k = k == null ? brighter : Math.pow(brighter, k);
+ return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
+ },
+ darker: function(k) {
+ k = k == null ? darker : Math.pow(darker, k);
+ return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
+ },
+ rgb: function() {
+ var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad,
+ l = +this.l,
+ a = isNaN(this.s) ? 0 : this.s * l * (1 - l),
+ cosh = Math.cos(h),
+ sinh = Math.sin(h);
+ return new Rgb(
+ 255 * (l + a * (A * cosh + B * sinh)),
+ 255 * (l + a * (C * cosh + D * sinh)),
+ 255 * (l + a * (E * cosh)),
+ this.opacity
+ );
+ }
+}));
+
+function basis(t1, v0, v1, v2, v3) {
+ var t2 = t1 * t1, t3 = t2 * t1;
+ return ((1 - 3 * t1 + 3 * t2 - t3) * v0
+ + (4 - 6 * t2 + 3 * t3) * v1
+ + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2
+ + t3 * v3) / 6;
+}
+
+var basis$1 = function(values) {
+ var n = values.length - 1;
+ return function(t) {
+ var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),
+ v1 = values[i],
+ v2 = values[i + 1],
+ v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,
+ v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;
+ return basis((t - i / n) * n, v0, v1, v2, v3);
+ };
+};
+
+var basisClosed = function(values) {
+ var n = values.length;
+ return function(t) {
+ var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n),
+ v0 = values[(i + n - 1) % n],
+ v1 = values[i % n],
+ v2 = values[(i + 1) % n],
+ v3 = values[(i + 2) % n];
+ return basis((t - i / n) * n, v0, v1, v2, v3);
+ };
+};
+
+var constant$3 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+function linear(a, d) {
+ return function(t) {
+ return a + t * d;
+ };
+}
+
+function exponential(a, b, y) {
+ return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {
+ return Math.pow(a + t * b, y);
+ };
+}
+
+function hue(a, b) {
+ var d = b - a;
+ return d ? linear(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$3(isNaN(a) ? b : a);
+}
+
+function gamma(y) {
+ return (y = +y) === 1 ? nogamma : function(a, b) {
+ return b - a ? exponential(a, b, y) : constant$3(isNaN(a) ? b : a);
+ };
+}
+
+function nogamma(a, b) {
+ var d = b - a;
+ return d ? linear(a, d) : constant$3(isNaN(a) ? b : a);
+}
+
+var interpolateRgb = ((function rgbGamma(y) {
+ var color$$1 = gamma(y);
+
+ function rgb$$1(start, end) {
+ var r = color$$1((start = rgb(start)).r, (end = rgb(end)).r),
+ g = color$$1(start.g, end.g),
+ b = color$$1(start.b, end.b),
+ opacity = nogamma(start.opacity, end.opacity);
+ return function(t) {
+ start.r = r(t);
+ start.g = g(t);
+ start.b = b(t);
+ start.opacity = opacity(t);
+ return start + "";
+ };
+ }
+
+ rgb$$1.gamma = rgbGamma;
+
+ return rgb$$1;
+}))(1);
+
+function rgbSpline(spline) {
+ return function(colors) {
+ var n = colors.length,
+ r = new Array(n),
+ g = new Array(n),
+ b = new Array(n),
+ i, color$$1;
+ for (i = 0; i < n; ++i) {
+ color$$1 = rgb(colors[i]);
+ r[i] = color$$1.r || 0;
+ g[i] = color$$1.g || 0;
+ b[i] = color$$1.b || 0;
+ }
+ r = spline(r);
+ g = spline(g);
+ b = spline(b);
+ color$$1.opacity = 1;
+ return function(t) {
+ color$$1.r = r(t);
+ color$$1.g = g(t);
+ color$$1.b = b(t);
+ return color$$1 + "";
+ };
+ };
+}
+
+var rgbBasis = rgbSpline(basis$1);
+var rgbBasisClosed = rgbSpline(basisClosed);
+
+var array$1 = function(a, b) {
+ var nb = b ? b.length : 0,
+ na = a ? Math.min(nb, a.length) : 0,
+ x = new Array(nb),
+ c = new Array(nb),
+ i;
+
+ for (i = 0; i < na; ++i) x[i] = interpolateValue(a[i], b[i]);
+ for (; i < nb; ++i) c[i] = b[i];
+
+ return function(t) {
+ for (i = 0; i < na; ++i) c[i] = x[i](t);
+ return c;
+ };
+};
+
+var date = function(a, b) {
+ var d = new Date;
+ return a = +a, b -= a, function(t) {
+ return d.setTime(a + b * t), d;
+ };
+};
+
+var reinterpolate = function(a, b) {
+ return a = +a, b -= a, function(t) {
+ return a + b * t;
+ };
+};
+
+var object = function(a, b) {
+ var i = {},
+ c = {},
+ k;
+
+ if (a === null || typeof a !== "object") a = {};
+ if (b === null || typeof b !== "object") b = {};
+
+ for (k in b) {
+ if (k in a) {
+ i[k] = interpolateValue(a[k], b[k]);
+ } else {
+ c[k] = b[k];
+ }
+ }
+
+ return function(t) {
+ for (k in i) c[k] = i[k](t);
+ return c;
+ };
+};
+
+var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;
+var reB = new RegExp(reA.source, "g");
+
+function zero(b) {
+ return function() {
+ return b;
+ };
+}
+
+function one(b) {
+ return function(t) {
+ return b(t) + "";
+ };
+}
+
+var interpolateString = function(a, b) {
+ var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b
+ am, // current match in a
+ bm, // current match in b
+ bs, // string preceding current number in b, if any
+ i = -1, // index in s
+ s = [], // string constants and placeholders
+ q = []; // number interpolators
+
+ // Coerce inputs to strings.
+ a = a + "", b = b + "";
+
+ // Interpolate pairs of numbers in a & b.
+ while ((am = reA.exec(a))
+ && (bm = reB.exec(b))) {
+ if ((bs = bm.index) > bi) { // a string precedes the next number in b
+ bs = b.slice(bi, bs);
+ if (s[i]) s[i] += bs; // coalesce with previous string
+ else s[++i] = bs;
+ }
+ if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match
+ if (s[i]) s[i] += bm; // coalesce with previous string
+ else s[++i] = bm;
+ } else { // interpolate non-matching numbers
+ s[++i] = null;
+ q.push({i: i, x: reinterpolate(am, bm)});
+ }
+ bi = reB.lastIndex;
+ }
+
+ // Add remains of b.
+ if (bi < b.length) {
+ bs = b.slice(bi);
+ if (s[i]) s[i] += bs; // coalesce with previous string
+ else s[++i] = bs;
+ }
+
+ // Special optimization for only a single match.
+ // Otherwise, interpolate each of the numbers and rejoin the string.
+ return s.length < 2 ? (q[0]
+ ? one(q[0].x)
+ : zero(b))
+ : (b = q.length, function(t) {
+ for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
+ return s.join("");
+ });
+};
+
+var interpolateValue = function(a, b) {
+ var t = typeof b, c;
+ return b == null || t === "boolean" ? constant$3(b)
+ : (t === "number" ? reinterpolate
+ : t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString)
+ : b instanceof color ? interpolateRgb
+ : b instanceof Date ? date
+ : Array.isArray(b) ? array$1
+ : isNaN(b) ? object
+ : reinterpolate)(a, b);
+};
+
+var interpolateRound = function(a, b) {
+ return a = +a, b -= a, function(t) {
+ return Math.round(a + b * t);
+ };
+};
+
+var degrees = 180 / Math.PI;
+
+var identity$2 = {
+ translateX: 0,
+ translateY: 0,
+ rotate: 0,
+ skewX: 0,
+ scaleX: 1,
+ scaleY: 1
+};
+
+var decompose = function(a, b, c, d, e, f) {
+ var scaleX, scaleY, skewX;
+ if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX;
+ if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX;
+ if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY;
+ if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX;
+ return {
+ translateX: e,
+ translateY: f,
+ rotate: Math.atan2(b, a) * degrees,
+ skewX: Math.atan(skewX) * degrees,
+ scaleX: scaleX,
+ scaleY: scaleY
+ };
+};
+
+var cssNode;
+var cssRoot;
+var cssView;
+var svgNode;
+
+function parseCss(value) {
+ if (value === "none") return identity$2;
+ if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView;
+ cssNode.style.transform = value;
+ value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform");
+ cssRoot.removeChild(cssNode);
+ value = value.slice(7, -1).split(",");
+ return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]);
+}
+
+function parseSvg(value) {
+ if (value == null) return identity$2;
+ if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g");
+ svgNode.setAttribute("transform", value);
+ if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2;
+ value = value.matrix;
+ return decompose(value.a, value.b, value.c, value.d, value.e, value.f);
+}
+
+function interpolateTransform(parse, pxComma, pxParen, degParen) {
+
+ function pop(s) {
+ return s.length ? s.pop() + " " : "";
+ }
+
+ function translate(xa, ya, xb, yb, s, q) {
+ if (xa !== xb || ya !== yb) {
+ var i = s.push("translate(", null, pxComma, null, pxParen);
+ q.push({i: i - 4, x: reinterpolate(xa, xb)}, {i: i - 2, x: reinterpolate(ya, yb)});
+ } else if (xb || yb) {
+ s.push("translate(" + xb + pxComma + yb + pxParen);
+ }
+ }
+
+ function rotate(a, b, s, q) {
+ if (a !== b) {
+ if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path
+ q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: reinterpolate(a, b)});
+ } else if (b) {
+ s.push(pop(s) + "rotate(" + b + degParen);
+ }
+ }
+
+ function skewX(a, b, s, q) {
+ if (a !== b) {
+ q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: reinterpolate(a, b)});
+ } else if (b) {
+ s.push(pop(s) + "skewX(" + b + degParen);
+ }
+ }
+
+ function scale(xa, ya, xb, yb, s, q) {
+ if (xa !== xb || ya !== yb) {
+ var i = s.push(pop(s) + "scale(", null, ",", null, ")");
+ q.push({i: i - 4, x: reinterpolate(xa, xb)}, {i: i - 2, x: reinterpolate(ya, yb)});
+ } else if (xb !== 1 || yb !== 1) {
+ s.push(pop(s) + "scale(" + xb + "," + yb + ")");
+ }
+ }
+
+ return function(a, b) {
+ var s = [], // string constants and placeholders
+ q = []; // number interpolators
+ a = parse(a), b = parse(b);
+ translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q);
+ rotate(a.rotate, b.rotate, s, q);
+ skewX(a.skewX, b.skewX, s, q);
+ scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q);
+ a = b = null; // gc
+ return function(t) {
+ var i = -1, n = q.length, o;
+ while (++i < n) s[(o = q[i]).i] = o.x(t);
+ return s.join("");
+ };
+ };
+}
+
+var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)");
+var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")");
+
+var rho = Math.SQRT2;
+var rho2 = 2;
+var rho4 = 4;
+var epsilon2 = 1e-12;
+
+function cosh(x) {
+ return ((x = Math.exp(x)) + 1 / x) / 2;
+}
+
+function sinh(x) {
+ return ((x = Math.exp(x)) - 1 / x) / 2;
+}
+
+function tanh(x) {
+ return ((x = Math.exp(2 * x)) - 1) / (x + 1);
+}
+
+// p0 = [ux0, uy0, w0]
+// p1 = [ux1, uy1, w1]
+var interpolateZoom = function(p0, p1) {
+ var ux0 = p0[0], uy0 = p0[1], w0 = p0[2],
+ ux1 = p1[0], uy1 = p1[1], w1 = p1[2],
+ dx = ux1 - ux0,
+ dy = uy1 - uy0,
+ d2 = dx * dx + dy * dy,
+ i,
+ S;
+
+ // Special case for u0 ≅ u1.
+ if (d2 < epsilon2) {
+ S = Math.log(w1 / w0) / rho;
+ i = function(t) {
+ return [
+ ux0 + t * dx,
+ uy0 + t * dy,
+ w0 * Math.exp(rho * t * S)
+ ];
+ };
+ }
+
+ // General case.
+ else {
+ var d1 = Math.sqrt(d2),
+ b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),
+ b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),
+ r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),
+ r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
+ S = (r1 - r0) / rho;
+ i = function(t) {
+ var s = t * S,
+ coshr0 = cosh(r0),
+ u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));
+ return [
+ ux0 + u * dx,
+ uy0 + u * dy,
+ w0 * coshr0 / cosh(rho * s + r0)
+ ];
+ };
+ }
+
+ i.duration = S * 1000;
+
+ return i;
+};
+
+function hsl$1(hue$$1) {
+ return function(start, end) {
+ var h = hue$$1((start = hsl(start)).h, (end = hsl(end)).h),
+ s = nogamma(start.s, end.s),
+ l = nogamma(start.l, end.l),
+ opacity = nogamma(start.opacity, end.opacity);
+ return function(t) {
+ start.h = h(t);
+ start.s = s(t);
+ start.l = l(t);
+ start.opacity = opacity(t);
+ return start + "";
+ };
+ }
+}
+
+var hsl$2 = hsl$1(hue);
+var hslLong = hsl$1(nogamma);
+
+function lab$1(start, end) {
+ var l = nogamma((start = lab(start)).l, (end = lab(end)).l),
+ a = nogamma(start.a, end.a),
+ b = nogamma(start.b, end.b),
+ opacity = nogamma(start.opacity, end.opacity);
+ return function(t) {
+ start.l = l(t);
+ start.a = a(t);
+ start.b = b(t);
+ start.opacity = opacity(t);
+ return start + "";
+ };
+}
+
+function hcl$1(hue$$1) {
+ return function(start, end) {
+ var h = hue$$1((start = hcl(start)).h, (end = hcl(end)).h),
+ c = nogamma(start.c, end.c),
+ l = nogamma(start.l, end.l),
+ opacity = nogamma(start.opacity, end.opacity);
+ return function(t) {
+ start.h = h(t);
+ start.c = c(t);
+ start.l = l(t);
+ start.opacity = opacity(t);
+ return start + "";
+ };
+ }
+}
+
+var hcl$2 = hcl$1(hue);
+var hclLong = hcl$1(nogamma);
+
+function cubehelix$1(hue$$1) {
+ return (function cubehelixGamma(y) {
+ y = +y;
+
+ function cubehelix$$1(start, end) {
+ var h = hue$$1((start = cubehelix(start)).h, (end = cubehelix(end)).h),
+ s = nogamma(start.s, end.s),
+ l = nogamma(start.l, end.l),
+ opacity = nogamma(start.opacity, end.opacity);
+ return function(t) {
+ start.h = h(t);
+ start.s = s(t);
+ start.l = l(Math.pow(t, y));
+ start.opacity = opacity(t);
+ return start + "";
+ };
+ }
+
+ cubehelix$$1.gamma = cubehelixGamma;
+
+ return cubehelix$$1;
+ })(1);
+}
+
+var cubehelix$2 = cubehelix$1(hue);
+var cubehelixLong = cubehelix$1(nogamma);
+
+var quantize = function(interpolator, n) {
+ var samples = new Array(n);
+ for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1));
+ return samples;
+};
+
+var frame = 0;
+var timeout = 0;
+var interval = 0;
+var pokeDelay = 1000;
+var taskHead;
+var taskTail;
+var clockLast = 0;
+var clockNow = 0;
+var clockSkew = 0;
+var clock = typeof performance === "object" && performance.now ? performance : Date;
+var setFrame = typeof requestAnimationFrame === "function" ? requestAnimationFrame : function(f) { setTimeout(f, 17); };
+
+function now() {
+ return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew);
+}
+
+function clearNow() {
+ clockNow = 0;
+}
+
+function Timer() {
+ this._call =
+ this._time =
+ this._next = null;
+}
+
+Timer.prototype = timer.prototype = {
+ constructor: Timer,
+ restart: function(callback, delay, time) {
+ if (typeof callback !== "function") throw new TypeError("callback is not a function");
+ time = (time == null ? now() : +time) + (delay == null ? 0 : +delay);
+ if (!this._next && taskTail !== this) {
+ if (taskTail) taskTail._next = this;
+ else taskHead = this;
+ taskTail = this;
+ }
+ this._call = callback;
+ this._time = time;
+ sleep();
+ },
+ stop: function() {
+ if (this._call) {
+ this._call = null;
+ this._time = Infinity;
+ sleep();
+ }
+ }
+};
+
+function timer(callback, delay, time) {
+ var t = new Timer;
+ t.restart(callback, delay, time);
+ return t;
+}
+
+function timerFlush() {
+ now(); // Get the current time, if not already set.
+ ++frame; // Pretend we’ve set an alarm, if we haven’t already.
+ var t = taskHead, e;
+ while (t) {
+ if ((e = clockNow - t._time) >= 0) t._call.call(null, e);
+ t = t._next;
+ }
+ --frame;
+}
+
+function wake() {
+ clockNow = (clockLast = clock.now()) + clockSkew;
+ frame = timeout = 0;
+ try {
+ timerFlush();
+ } finally {
+ frame = 0;
+ nap();
+ clockNow = 0;
+ }
+}
+
+function poke() {
+ var now = clock.now(), delay = now - clockLast;
+ if (delay > pokeDelay) clockSkew -= delay, clockLast = now;
+}
+
+function nap() {
+ var t0, t1 = taskHead, t2, time = Infinity;
+ while (t1) {
+ if (t1._call) {
+ if (time > t1._time) time = t1._time;
+ t0 = t1, t1 = t1._next;
+ } else {
+ t2 = t1._next, t1._next = null;
+ t1 = t0 ? t0._next = t2 : taskHead = t2;
+ }
+ }
+ taskTail = t0;
+ sleep(time);
+}
+
+function sleep(time) {
+ if (frame) return; // Soonest alarm already set, or will be.
+ if (timeout) timeout = clearTimeout(timeout);
+ var delay = time - clockNow;
+ if (delay > 24) {
+ if (time < Infinity) timeout = setTimeout(wake, delay);
+ if (interval) interval = clearInterval(interval);
+ } else {
+ if (!interval) clockLast = clockNow, interval = setInterval(poke, pokeDelay);
+ frame = 1, setFrame(wake);
+ }
+}
+
+var timeout$1 = function(callback, delay, time) {
+ var t = new Timer;
+ delay = delay == null ? 0 : +delay;
+ t.restart(function(elapsed) {
+ t.stop();
+ callback(elapsed + delay);
+ }, delay, time);
+ return t;
+};
+
+var interval$1 = function(callback, delay, time) {
+ var t = new Timer, total = delay;
+ if (delay == null) return t.restart(callback, delay, time), t;
+ delay = +delay, time = time == null ? now() : +time;
+ t.restart(function tick(elapsed) {
+ elapsed += total;
+ t.restart(tick, total += delay, time);
+ callback(elapsed);
+ }, delay, time);
+ return t;
+};
+
+var emptyOn = dispatch("start", "end", "interrupt");
+var emptyTween = [];
+
+var CREATED = 0;
+var SCHEDULED = 1;
+var STARTING = 2;
+var STARTED = 3;
+var RUNNING = 4;
+var ENDING = 5;
+var ENDED = 6;
+
+var schedule = function(node, name, id, index, group, timing) {
+ var schedules = node.__transition;
+ if (!schedules) node.__transition = {};
+ else if (id in schedules) return;
+ create(node, id, {
+ name: name,
+ index: index, // For context during callback.
+ group: group, // For context during callback.
+ on: emptyOn,
+ tween: emptyTween,
+ time: timing.time,
+ delay: timing.delay,
+ duration: timing.duration,
+ ease: timing.ease,
+ timer: null,
+ state: CREATED
+ });
+};
+
+function init(node, id) {
+ var schedule = node.__transition;
+ if (!schedule || !(schedule = schedule[id]) || schedule.state > CREATED) throw new Error("too late");
+ return schedule;
+}
+
+function set$1(node, id) {
+ var schedule = node.__transition;
+ if (!schedule || !(schedule = schedule[id]) || schedule.state > STARTING) throw new Error("too late");
+ return schedule;
+}
+
+function get$1(node, id) {
+ var schedule = node.__transition;
+ if (!schedule || !(schedule = schedule[id])) throw new Error("too late");
+ return schedule;
+}
+
+function create(node, id, self) {
+ var schedules = node.__transition,
+ tween;
+
+ // Initialize the self timer when the transition is created.
+ // Note the actual delay is not known until the first callback!
+ schedules[id] = self;
+ self.timer = timer(schedule, 0, self.time);
+
+ function schedule(elapsed) {
+ self.state = SCHEDULED;
+ self.timer.restart(start, self.delay, self.time);
+
+ // If the elapsed delay is less than our first sleep, start immediately.
+ if (self.delay <= elapsed) start(elapsed - self.delay);
+ }
+
+ function start(elapsed) {
+ var i, j, n, o;
+
+ // If the state is not SCHEDULED, then we previously errored on start.
+ if (self.state !== SCHEDULED) return stop();
+
+ for (i in schedules) {
+ o = schedules[i];
+ if (o.name !== self.name) continue;
+
+ // While this element already has a starting transition during this frame,
+ // defer starting an interrupting transition until that transition has a
+ // chance to tick (and possibly end); see d3/d3-transition#54!
+ if (o.state === STARTED) return timeout$1(start);
+
+ // Interrupt the active transition, if any.
+ // Dispatch the interrupt event.
+ if (o.state === RUNNING) {
+ o.state = ENDED;
+ o.timer.stop();
+ o.on.call("interrupt", node, node.__data__, o.index, o.group);
+ delete schedules[i];
+ }
+
+ // Cancel any pre-empted transitions. No interrupt event is dispatched
+ // because the cancelled transitions never started. Note that this also
+ // removes this transition from the pending list!
+ else if (+i < id) {
+ o.state = ENDED;
+ o.timer.stop();
+ delete schedules[i];
+ }
+ }
+
+ // Defer the first tick to end of the current frame; see d3/d3#1576.
+ // Note the transition may be canceled after start and before the first tick!
+ // Note this must be scheduled before the start event; see d3/d3-transition#16!
+ // Assuming this is successful, subsequent callbacks go straight to tick.
+ timeout$1(function() {
+ if (self.state === STARTED) {
+ self.state = RUNNING;
+ self.timer.restart(tick, self.delay, self.time);
+ tick(elapsed);
+ }
+ });
+
+ // Dispatch the start event.
+ // Note this must be done before the tween are initialized.
+ self.state = STARTING;
+ self.on.call("start", node, node.__data__, self.index, self.group);
+ if (self.state !== STARTING) return; // interrupted
+ self.state = STARTED;
+
+ // Initialize the tween, deleting null tween.
+ tween = new Array(n = self.tween.length);
+ for (i = 0, j = -1; i < n; ++i) {
+ if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) {
+ tween[++j] = o;
+ }
+ }
+ tween.length = j + 1;
+ }
+
+ function tick(elapsed) {
+ var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.timer.restart(stop), self.state = ENDING, 1),
+ i = -1,
+ n = tween.length;
+
+ while (++i < n) {
+ tween[i].call(null, t);
+ }
+
+ // Dispatch the end event.
+ if (self.state === ENDING) {
+ self.on.call("end", node, node.__data__, self.index, self.group);
+ stop();
+ }
+ }
+
+ function stop() {
+ self.state = ENDED;
+ self.timer.stop();
+ delete schedules[id];
+ for (var i in schedules) return; // eslint-disable-line no-unused-vars
+ delete node.__transition;
+ }
+}
+
+var interrupt = function(node, name) {
+ var schedules = node.__transition,
+ schedule,
+ active,
+ empty = true,
+ i;
+
+ if (!schedules) return;
+
+ name = name == null ? null : name + "";
+
+ for (i in schedules) {
+ if ((schedule = schedules[i]).name !== name) { empty = false; continue; }
+ active = schedule.state > STARTING && schedule.state < ENDING;
+ schedule.state = ENDED;
+ schedule.timer.stop();
+ if (active) schedule.on.call("interrupt", node, node.__data__, schedule.index, schedule.group);
+ delete schedules[i];
+ }
+
+ if (empty) delete node.__transition;
+};
+
+var selection_interrupt = function(name) {
+ return this.each(function() {
+ interrupt(this, name);
+ });
+};
+
+function tweenRemove(id, name) {
+ var tween0, tween1;
+ return function() {
+ var schedule = set$1(this, id),
+ tween = schedule.tween;
+
+ // If this node shared tween with the previous node,
+ // just assign the updated shared tween and we’re done!
+ // Otherwise, copy-on-write.
+ if (tween !== tween0) {
+ tween1 = tween0 = tween;
+ for (var i = 0, n = tween1.length; i < n; ++i) {
+ if (tween1[i].name === name) {
+ tween1 = tween1.slice();
+ tween1.splice(i, 1);
+ break;
+ }
+ }
+ }
+
+ schedule.tween = tween1;
+ };
+}
+
+function tweenFunction(id, name, value) {
+ var tween0, tween1;
+ if (typeof value !== "function") throw new Error;
+ return function() {
+ var schedule = set$1(this, id),
+ tween = schedule.tween;
+
+ // If this node shared tween with the previous node,
+ // just assign the updated shared tween and we’re done!
+ // Otherwise, copy-on-write.
+ if (tween !== tween0) {
+ tween1 = (tween0 = tween).slice();
+ for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) {
+ if (tween1[i].name === name) {
+ tween1[i] = t;
+ break;
+ }
+ }
+ if (i === n) tween1.push(t);
+ }
+
+ schedule.tween = tween1;
+ };
+}
+
+var transition_tween = function(name, value) {
+ var id = this._id;
+
+ name += "";
+
+ if (arguments.length < 2) {
+ var tween = get$1(this.node(), id).tween;
+ for (var i = 0, n = tween.length, t; i < n; ++i) {
+ if ((t = tween[i]).name === name) {
+ return t.value;
+ }
+ }
+ return null;
+ }
+
+ return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value));
+};
+
+function tweenValue(transition, name, value) {
+ var id = transition._id;
+
+ transition.each(function() {
+ var schedule = set$1(this, id);
+ (schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments);
+ });
+
+ return function(node) {
+ return get$1(node, id).value[name];
+ };
+}
+
+var interpolate$$1 = function(a, b) {
+ var c;
+ return (typeof b === "number" ? reinterpolate
+ : b instanceof color ? interpolateRgb
+ : (c = color(b)) ? (b = c, interpolateRgb)
+ : interpolateString)(a, b);
+};
+
+function attrRemove$1(name) {
+ return function() {
+ this.removeAttribute(name);
+ };
+}
+
+function attrRemoveNS$1(fullname) {
+ return function() {
+ this.removeAttributeNS(fullname.space, fullname.local);
+ };
+}
+
+function attrConstant$1(name, interpolate$$1, value1) {
+ var value00,
+ interpolate0;
+ return function() {
+ var value0 = this.getAttribute(name);
+ return value0 === value1 ? null
+ : value0 === value00 ? interpolate0
+ : interpolate0 = interpolate$$1(value00 = value0, value1);
+ };
+}
+
+function attrConstantNS$1(fullname, interpolate$$1, value1) {
+ var value00,
+ interpolate0;
+ return function() {
+ var value0 = this.getAttributeNS(fullname.space, fullname.local);
+ return value0 === value1 ? null
+ : value0 === value00 ? interpolate0
+ : interpolate0 = interpolate$$1(value00 = value0, value1);
+ };
+}
+
+function attrFunction$1(name, interpolate$$1, value) {
+ var value00,
+ value10,
+ interpolate0;
+ return function() {
+ var value0, value1 = value(this);
+ if (value1 == null) return void this.removeAttribute(name);
+ value0 = this.getAttribute(name);
+ return value0 === value1 ? null
+ : value0 === value00 && value1 === value10 ? interpolate0
+ : interpolate0 = interpolate$$1(value00 = value0, value10 = value1);
+ };
+}
+
+function attrFunctionNS$1(fullname, interpolate$$1, value) {
+ var value00,
+ value10,
+ interpolate0;
+ return function() {
+ var value0, value1 = value(this);
+ if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local);
+ value0 = this.getAttributeNS(fullname.space, fullname.local);
+ return value0 === value1 ? null
+ : value0 === value00 && value1 === value10 ? interpolate0
+ : interpolate0 = interpolate$$1(value00 = value0, value10 = value1);
+ };
+}
+
+var transition_attr = function(name, value) {
+ var fullname = namespace(name), i = fullname === "transform" ? interpolateTransformSvg : interpolate$$1;
+ return this.attrTween(name, typeof value === "function"
+ ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value))
+ : value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname)
+ : (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value + ""));
+};
+
+function attrTweenNS(fullname, value) {
+ function tween() {
+ var node = this, i = value.apply(node, arguments);
+ return i && function(t) {
+ node.setAttributeNS(fullname.space, fullname.local, i(t));
+ };
+ }
+ tween._value = value;
+ return tween;
+}
+
+function attrTween(name, value) {
+ function tween() {
+ var node = this, i = value.apply(node, arguments);
+ return i && function(t) {
+ node.setAttribute(name, i(t));
+ };
+ }
+ tween._value = value;
+ return tween;
+}
+
+var transition_attrTween = function(name, value) {
+ var key = "attr." + name;
+ if (arguments.length < 2) return (key = this.tween(key)) && key._value;
+ if (value == null) return this.tween(key, null);
+ if (typeof value !== "function") throw new Error;
+ var fullname = namespace(name);
+ return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value));
+};
+
+function delayFunction(id, value) {
+ return function() {
+ init(this, id).delay = +value.apply(this, arguments);
+ };
+}
+
+function delayConstant(id, value) {
+ return value = +value, function() {
+ init(this, id).delay = value;
+ };
+}
+
+var transition_delay = function(value) {
+ var id = this._id;
+
+ return arguments.length
+ ? this.each((typeof value === "function"
+ ? delayFunction
+ : delayConstant)(id, value))
+ : get$1(this.node(), id).delay;
+};
+
+function durationFunction(id, value) {
+ return function() {
+ set$1(this, id).duration = +value.apply(this, arguments);
+ };
+}
+
+function durationConstant(id, value) {
+ return value = +value, function() {
+ set$1(this, id).duration = value;
+ };
+}
+
+var transition_duration = function(value) {
+ var id = this._id;
+
+ return arguments.length
+ ? this.each((typeof value === "function"
+ ? durationFunction
+ : durationConstant)(id, value))
+ : get$1(this.node(), id).duration;
+};
+
+function easeConstant(id, value) {
+ if (typeof value !== "function") throw new Error;
+ return function() {
+ set$1(this, id).ease = value;
+ };
+}
+
+var transition_ease = function(value) {
+ var id = this._id;
+
+ return arguments.length
+ ? this.each(easeConstant(id, value))
+ : get$1(this.node(), id).ease;
+};
+
+var transition_filter = function(match) {
+ if (typeof match !== "function") match = matcher$1(match);
+
+ for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
+ if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
+ subgroup.push(node);
+ }
+ }
+ }
+
+ return new Transition(subgroups, this._parents, this._name, this._id);
+};
+
+var transition_merge = function(transition) {
+ if (transition._id !== this._id) throw new Error;
+
+ for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
+ for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
+ if (node = group0[i] || group1[i]) {
+ merge[i] = node;
+ }
+ }
+ }
+
+ for (; j < m0; ++j) {
+ merges[j] = groups0[j];
+ }
+
+ return new Transition(merges, this._parents, this._name, this._id);
+};
+
+function start(name) {
+ return (name + "").trim().split(/^|\s+/).every(function(t) {
+ var i = t.indexOf(".");
+ if (i >= 0) t = t.slice(0, i);
+ return !t || t === "start";
+ });
+}
+
+function onFunction(id, name, listener) {
+ var on0, on1, sit = start(name) ? init : set$1;
+ return function() {
+ var schedule = sit(this, id),
+ on = schedule.on;
+
+ // If this node shared a dispatch with the previous node,
+ // just assign the updated shared dispatch and we’re done!
+ // Otherwise, copy-on-write.
+ if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener);
+
+ schedule.on = on1;
+ };
+}
+
+var transition_on = function(name, listener) {
+ var id = this._id;
+
+ return arguments.length < 2
+ ? get$1(this.node(), id).on.on(name)
+ : this.each(onFunction(id, name, listener));
+};
+
+function removeFunction(id) {
+ return function() {
+ var parent = this.parentNode;
+ for (var i in this.__transition) if (+i !== id) return;
+ if (parent) parent.removeChild(this);
+ };
+}
+
+var transition_remove = function() {
+ return this.on("end.remove", removeFunction(this._id));
+};
+
+var transition_select = function(select$$1) {
+ var name = this._name,
+ id = this._id;
+
+ if (typeof select$$1 !== "function") select$$1 = selector(select$$1);
+
+ for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
+ if ((node = group[i]) && (subnode = select$$1.call(node, node.__data__, i, group))) {
+ if ("__data__" in node) subnode.__data__ = node.__data__;
+ subgroup[i] = subnode;
+ schedule(subgroup[i], name, id, i, subgroup, get$1(node, id));
+ }
+ }
+ }
+
+ return new Transition(subgroups, this._parents, name, id);
+};
+
+var transition_selectAll = function(select$$1) {
+ var name = this._name,
+ id = this._id;
+
+ if (typeof select$$1 !== "function") select$$1 = selectorAll(select$$1);
+
+ for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
+ if (node = group[i]) {
+ for (var children = select$$1.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) {
+ if (child = children[k]) {
+ schedule(child, name, id, k, children, inherit);
+ }
+ }
+ subgroups.push(children);
+ parents.push(node);
+ }
+ }
+ }
+
+ return new Transition(subgroups, parents, name, id);
+};
+
+var Selection$1 = selection.prototype.constructor;
+
+var transition_selection = function() {
+ return new Selection$1(this._groups, this._parents);
+};
+
+function styleRemove$1(name, interpolate$$2) {
+ var value00,
+ value10,
+ interpolate0;
+ return function() {
+ var style = window(this).getComputedStyle(this, null),
+ value0 = style.getPropertyValue(name),
+ value1 = (this.style.removeProperty(name), style.getPropertyValue(name));
+ return value0 === value1 ? null
+ : value0 === value00 && value1 === value10 ? interpolate0
+ : interpolate0 = interpolate$$2(value00 = value0, value10 = value1);
+ };
+}
+
+function styleRemoveEnd(name) {
+ return function() {
+ this.style.removeProperty(name);
+ };
+}
+
+function styleConstant$1(name, interpolate$$2, value1) {
+ var value00,
+ interpolate0;
+ return function() {
+ var value0 = window(this).getComputedStyle(this, null).getPropertyValue(name);
+ return value0 === value1 ? null
+ : value0 === value00 ? interpolate0
+ : interpolate0 = interpolate$$2(value00 = value0, value1);
+ };
+}
+
+function styleFunction$1(name, interpolate$$2, value) {
+ var value00,
+ value10,
+ interpolate0;
+ return function() {
+ var style = window(this).getComputedStyle(this, null),
+ value0 = style.getPropertyValue(name),
+ value1 = value(this);
+ if (value1 == null) value1 = (this.style.removeProperty(name), style.getPropertyValue(name));
+ return value0 === value1 ? null
+ : value0 === value00 && value1 === value10 ? interpolate0
+ : interpolate0 = interpolate$$2(value00 = value0, value10 = value1);
+ };
+}
+
+var transition_style = function(name, value, priority) {
+ var i = (name += "") === "transform" ? interpolateTransformCss : interpolate$$1;
+ return value == null ? this
+ .styleTween(name, styleRemove$1(name, i))
+ .on("end.style." + name, styleRemoveEnd(name))
+ : this.styleTween(name, typeof value === "function"
+ ? styleFunction$1(name, i, tweenValue(this, "style." + name, value))
+ : styleConstant$1(name, i, value + ""), priority);
+};
+
+function styleTween(name, value, priority) {
+ function tween() {
+ var node = this, i = value.apply(node, arguments);
+ return i && function(t) {
+ node.style.setProperty(name, i(t), priority);
+ };
+ }
+ tween._value = value;
+ return tween;
+}
+
+var transition_styleTween = function(name, value, priority) {
+ var key = "style." + (name += "");
+ if (arguments.length < 2) return (key = this.tween(key)) && key._value;
+ if (value == null) return this.tween(key, null);
+ if (typeof value !== "function") throw new Error;
+ return this.tween(key, styleTween(name, value, priority == null ? "" : priority));
+};
+
+function textConstant$1(value) {
+ return function() {
+ this.textContent = value;
+ };
+}
+
+function textFunction$1(value) {
+ return function() {
+ var value1 = value(this);
+ this.textContent = value1 == null ? "" : value1;
+ };
+}
+
+var transition_text = function(value) {
+ return this.tween("text", typeof value === "function"
+ ? textFunction$1(tweenValue(this, "text", value))
+ : textConstant$1(value == null ? "" : value + ""));
+};
+
+var transition_transition = function() {
+ var name = this._name,
+ id0 = this._id,
+ id1 = newId();
+
+ for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
+ if (node = group[i]) {
+ var inherit = get$1(node, id0);
+ schedule(node, name, id1, i, group, {
+ time: inherit.time + inherit.delay + inherit.duration,
+ delay: 0,
+ duration: inherit.duration,
+ ease: inherit.ease
+ });
+ }
+ }
+ }
+
+ return new Transition(groups, this._parents, name, id1);
+};
+
+var id = 0;
+
+function Transition(groups, parents, name, id) {
+ this._groups = groups;
+ this._parents = parents;
+ this._name = name;
+ this._id = id;
+}
+
+function transition(name) {
+ return selection().transition(name);
+}
+
+function newId() {
+ return ++id;
+}
+
+var selection_prototype = selection.prototype;
+
+Transition.prototype = transition.prototype = {
+ constructor: Transition,
+ select: transition_select,
+ selectAll: transition_selectAll,
+ filter: transition_filter,
+ merge: transition_merge,
+ selection: transition_selection,
+ transition: transition_transition,
+ call: selection_prototype.call,
+ nodes: selection_prototype.nodes,
+ node: selection_prototype.node,
+ size: selection_prototype.size,
+ empty: selection_prototype.empty,
+ each: selection_prototype.each,
+ on: transition_on,
+ attr: transition_attr,
+ attrTween: transition_attrTween,
+ style: transition_style,
+ styleTween: transition_styleTween,
+ text: transition_text,
+ remove: transition_remove,
+ tween: transition_tween,
+ delay: transition_delay,
+ duration: transition_duration,
+ ease: transition_ease
+};
+
+function linear$1(t) {
+ return +t;
+}
+
+function quadIn(t) {
+ return t * t;
+}
+
+function quadOut(t) {
+ return t * (2 - t);
+}
+
+function quadInOut(t) {
+ return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2;
+}
+
+function cubicIn(t) {
+ return t * t * t;
+}
+
+function cubicOut(t) {
+ return --t * t * t + 1;
+}
+
+function cubicInOut(t) {
+ return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2;
+}
+
+var exponent = 3;
+
+var polyIn = (function custom(e) {
+ e = +e;
+
+ function polyIn(t) {
+ return Math.pow(t, e);
+ }
+
+ polyIn.exponent = custom;
+
+ return polyIn;
+})(exponent);
+
+var polyOut = (function custom(e) {
+ e = +e;
+
+ function polyOut(t) {
+ return 1 - Math.pow(1 - t, e);
+ }
+
+ polyOut.exponent = custom;
+
+ return polyOut;
+})(exponent);
+
+var polyInOut = (function custom(e) {
+ e = +e;
+
+ function polyInOut(t) {
+ return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2;
+ }
+
+ polyInOut.exponent = custom;
+
+ return polyInOut;
+})(exponent);
+
+var pi = Math.PI;
+var halfPi = pi / 2;
+
+function sinIn(t) {
+ return 1 - Math.cos(t * halfPi);
+}
+
+function sinOut(t) {
+ return Math.sin(t * halfPi);
+}
+
+function sinInOut(t) {
+ return (1 - Math.cos(pi * t)) / 2;
+}
+
+function expIn(t) {
+ return Math.pow(2, 10 * t - 10);
+}
+
+function expOut(t) {
+ return 1 - Math.pow(2, -10 * t);
+}
+
+function expInOut(t) {
+ return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2;
+}
+
+function circleIn(t) {
+ return 1 - Math.sqrt(1 - t * t);
+}
+
+function circleOut(t) {
+ return Math.sqrt(1 - --t * t);
+}
+
+function circleInOut(t) {
+ return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2;
+}
+
+var b1 = 4 / 11;
+var b2 = 6 / 11;
+var b3 = 8 / 11;
+var b4 = 3 / 4;
+var b5 = 9 / 11;
+var b6 = 10 / 11;
+var b7 = 15 / 16;
+var b8 = 21 / 22;
+var b9 = 63 / 64;
+var b0 = 1 / b1 / b1;
+
+function bounceIn(t) {
+ return 1 - bounceOut(1 - t);
+}
+
+function bounceOut(t) {
+ return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9;
+}
+
+function bounceInOut(t) {
+ return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2;
+}
+
+var overshoot = 1.70158;
+
+var backIn = (function custom(s) {
+ s = +s;
+
+ function backIn(t) {
+ return t * t * ((s + 1) * t - s);
+ }
+
+ backIn.overshoot = custom;
+
+ return backIn;
+})(overshoot);
+
+var backOut = (function custom(s) {
+ s = +s;
+
+ function backOut(t) {
+ return --t * t * ((s + 1) * t + s) + 1;
+ }
+
+ backOut.overshoot = custom;
+
+ return backOut;
+})(overshoot);
+
+var backInOut = (function custom(s) {
+ s = +s;
+
+ function backInOut(t) {
+ return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2;
+ }
+
+ backInOut.overshoot = custom;
+
+ return backInOut;
+})(overshoot);
+
+var tau = 2 * Math.PI;
+var amplitude = 1;
+var period = 0.3;
+
+var elasticIn = (function custom(a, p) {
+ var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
+
+ function elasticIn(t) {
+ return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p);
+ }
+
+ elasticIn.amplitude = function(a) { return custom(a, p * tau); };
+ elasticIn.period = function(p) { return custom(a, p); };
+
+ return elasticIn;
+})(amplitude, period);
+
+var elasticOut = (function custom(a, p) {
+ var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
+
+ function elasticOut(t) {
+ return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p);
+ }
+
+ elasticOut.amplitude = function(a) { return custom(a, p * tau); };
+ elasticOut.period = function(p) { return custom(a, p); };
+
+ return elasticOut;
+})(amplitude, period);
+
+var elasticInOut = (function custom(a, p) {
+ var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
+
+ function elasticInOut(t) {
+ return ((t = t * 2 - 1) < 0
+ ? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p)
+ : 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2;
+ }
+
+ elasticInOut.amplitude = function(a) { return custom(a, p * tau); };
+ elasticInOut.period = function(p) { return custom(a, p); };
+
+ return elasticInOut;
+})(amplitude, period);
+
+var defaultTiming = {
+ time: null, // Set on use.
+ delay: 0,
+ duration: 250,
+ ease: cubicInOut
+};
+
+function inherit(node, id) {
+ var timing;
+ while (!(timing = node.__transition) || !(timing = timing[id])) {
+ if (!(node = node.parentNode)) {
+ return defaultTiming.time = now(), defaultTiming;
+ }
+ }
+ return timing;
+}
+
+var selection_transition = function(name) {
+ var id,
+ timing;
+
+ if (name instanceof Transition) {
+ id = name._id, name = name._name;
+ } else {
+ id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + "";
+ }
+
+ for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {
+ for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
+ if (node = group[i]) {
+ schedule(node, name, id, i, group, timing || inherit(node, id));
+ }
+ }
+ }
+
+ return new Transition(groups, this._parents, name, id);
+};
+
+selection.prototype.interrupt = selection_interrupt;
+selection.prototype.transition = selection_transition;
+
+var root$1 = [null];
+
+var active = function(node, name) {
+ var schedules = node.__transition,
+ schedule,
+ i;
+
+ if (schedules) {
+ name = name == null ? null : name + "";
+ for (i in schedules) {
+ if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) {
+ return new Transition([[node]], root$1, name, +i);
+ }
+ }
+ }
+
+ return null;
+};
+
+var constant$4 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var BrushEvent = function(target, type, selection) {
+ this.target = target;
+ this.type = type;
+ this.selection = selection;
+};
+
+function nopropagation$1() {
+ exports.event.stopImmediatePropagation();
+}
+
+var noevent$1 = function() {
+ exports.event.preventDefault();
+ exports.event.stopImmediatePropagation();
+};
+
+var MODE_DRAG = {name: "drag"};
+var MODE_SPACE = {name: "space"};
+var MODE_HANDLE = {name: "handle"};
+var MODE_CENTER = {name: "center"};
+
+var X = {
+ name: "x",
+ handles: ["e", "w"].map(type),
+ input: function(x, e) { return x && [[x[0], e[0][1]], [x[1], e[1][1]]]; },
+ output: function(xy) { return xy && [xy[0][0], xy[1][0]]; }
+};
+
+var Y = {
+ name: "y",
+ handles: ["n", "s"].map(type),
+ input: function(y, e) { return y && [[e[0][0], y[0]], [e[1][0], y[1]]]; },
+ output: function(xy) { return xy && [xy[0][1], xy[1][1]]; }
+};
+
+var XY = {
+ name: "xy",
+ handles: ["n", "e", "s", "w", "nw", "ne", "se", "sw"].map(type),
+ input: function(xy) { return xy; },
+ output: function(xy) { return xy; }
+};
+
+var cursors = {
+ overlay: "crosshair",
+ selection: "move",
+ n: "ns-resize",
+ e: "ew-resize",
+ s: "ns-resize",
+ w: "ew-resize",
+ nw: "nwse-resize",
+ ne: "nesw-resize",
+ se: "nwse-resize",
+ sw: "nesw-resize"
+};
+
+var flipX = {
+ e: "w",
+ w: "e",
+ nw: "ne",
+ ne: "nw",
+ se: "sw",
+ sw: "se"
+};
+
+var flipY = {
+ n: "s",
+ s: "n",
+ nw: "sw",
+ ne: "se",
+ se: "ne",
+ sw: "nw"
+};
+
+var signsX = {
+ overlay: +1,
+ selection: +1,
+ n: null,
+ e: +1,
+ s: null,
+ w: -1,
+ nw: -1,
+ ne: +1,
+ se: +1,
+ sw: -1
+};
+
+var signsY = {
+ overlay: +1,
+ selection: +1,
+ n: -1,
+ e: null,
+ s: +1,
+ w: null,
+ nw: -1,
+ ne: -1,
+ se: +1,
+ sw: +1
+};
+
+function type(t) {
+ return {type: t};
+}
+
+// Ignore right-click, since that should open the context menu.
+function defaultFilter() {
+ return !exports.event.button;
+}
+
+function defaultExtent() {
+ var svg = this.ownerSVGElement || this;
+ return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]];
+}
+
+// Like d3.local, but with the name “__brush” rather than auto-generated.
+function local$$1(node) {
+ while (!node.__brush) if (!(node = node.parentNode)) return;
+ return node.__brush;
+}
+
+function empty(extent) {
+ return extent[0][0] === extent[1][0]
+ || extent[0][1] === extent[1][1];
+}
+
+function brushSelection(node) {
+ var state = node.__brush;
+ return state ? state.dim.output(state.selection) : null;
+}
+
+function brushX() {
+ return brush$1(X);
+}
+
+function brushY() {
+ return brush$1(Y);
+}
+
+var brush = function() {
+ return brush$1(XY);
+};
+
+function brush$1(dim) {
+ var extent = defaultExtent,
+ filter = defaultFilter,
+ listeners = dispatch(brush, "start", "brush", "end"),
+ handleSize = 6,
+ touchending;
+
+ function brush(group) {
+ var overlay = group
+ .property("__brush", initialize)
+ .selectAll(".overlay")
+ .data([type("overlay")]);
+
+ overlay.enter().append("rect")
+ .attr("class", "overlay")
+ .attr("pointer-events", "all")
+ .attr("cursor", cursors.overlay)
+ .merge(overlay)
+ .each(function() {
+ var extent = local$$1(this).extent;
+ select(this)
+ .attr("x", extent[0][0])
+ .attr("y", extent[0][1])
+ .attr("width", extent[1][0] - extent[0][0])
+ .attr("height", extent[1][1] - extent[0][1]);
+ });
+
+ group.selectAll(".selection")
+ .data([type("selection")])
+ .enter().append("rect")
+ .attr("class", "selection")
+ .attr("cursor", cursors.selection)
+ .attr("fill", "#777")
+ .attr("fill-opacity", 0.3)
+ .attr("stroke", "#fff")
+ .attr("shape-rendering", "crispEdges");
+
+ var handle = group.selectAll(".handle")
+ .data(dim.handles, function(d) { return d.type; });
+
+ handle.exit().remove();
+
+ handle.enter().append("rect")
+ .attr("class", function(d) { return "handle handle--" + d.type; })
+ .attr("cursor", function(d) { return cursors[d.type]; });
+
+ group
+ .each(redraw)
+ .attr("fill", "none")
+ .attr("pointer-events", "all")
+ .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)")
+ .on("mousedown.brush touchstart.brush", started);
+ }
+
+ brush.move = function(group, selection$$1) {
+ if (group.selection) {
+ group
+ .on("start.brush", function() { emitter(this, arguments).beforestart().start(); })
+ .on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); })
+ .tween("brush", function() {
+ var that = this,
+ state = that.__brush,
+ emit = emitter(that, arguments),
+ selection0 = state.selection,
+ selection1 = dim.input(typeof selection$$1 === "function" ? selection$$1.apply(this, arguments) : selection$$1, state.extent),
+ i = interpolateValue(selection0, selection1);
+
+ function tween(t) {
+ state.selection = t === 1 && empty(selection1) ? null : i(t);
+ redraw.call(that);
+ emit.brush();
+ }
+
+ return selection0 && selection1 ? tween : tween(1);
+ });
+ } else {
+ group
+ .each(function() {
+ var that = this,
+ args = arguments,
+ state = that.__brush,
+ selection1 = dim.input(typeof selection$$1 === "function" ? selection$$1.apply(that, args) : selection$$1, state.extent),
+ emit = emitter(that, args).beforestart();
+
+ interrupt(that);
+ state.selection = selection1 == null || empty(selection1) ? null : selection1;
+ redraw.call(that);
+ emit.start().brush().end();
+ });
+ }
+ };
+
+ function redraw() {
+ var group = select(this),
+ selection$$1 = local$$1(this).selection;
+
+ if (selection$$1) {
+ group.selectAll(".selection")
+ .style("display", null)
+ .attr("x", selection$$1[0][0])
+ .attr("y", selection$$1[0][1])
+ .attr("width", selection$$1[1][0] - selection$$1[0][0])
+ .attr("height", selection$$1[1][1] - selection$$1[0][1]);
+
+ group.selectAll(".handle")
+ .style("display", null)
+ .attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection$$1[1][0] - handleSize / 2 : selection$$1[0][0] - handleSize / 2; })
+ .attr("y", function(d) { return d.type[0] === "s" ? selection$$1[1][1] - handleSize / 2 : selection$$1[0][1] - handleSize / 2; })
+ .attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection$$1[1][0] - selection$$1[0][0] + handleSize : handleSize; })
+ .attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection$$1[1][1] - selection$$1[0][1] + handleSize : handleSize; });
+ }
+
+ else {
+ group.selectAll(".selection,.handle")
+ .style("display", "none")
+ .attr("x", null)
+ .attr("y", null)
+ .attr("width", null)
+ .attr("height", null);
+ }
+ }
+
+ function emitter(that, args) {
+ return that.__brush.emitter || new Emitter(that, args);
+ }
+
+ function Emitter(that, args) {
+ this.that = that;
+ this.args = args;
+ this.state = that.__brush;
+ this.active = 0;
+ }
+
+ Emitter.prototype = {
+ beforestart: function() {
+ if (++this.active === 1) this.state.emitter = this, this.starting = true;
+ return this;
+ },
+ start: function() {
+ if (this.starting) this.starting = false, this.emit("start");
+ return this;
+ },
+ brush: function() {
+ this.emit("brush");
+ return this;
+ },
+ end: function() {
+ if (--this.active === 0) delete this.state.emitter, this.emit("end");
+ return this;
+ },
+ emit: function(type) {
+ customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]);
+ }
+ };
+
+ function started() {
+ if (exports.event.touches) { if (exports.event.changedTouches.length < exports.event.touches.length) return noevent$1(); }
+ else if (touchending) return;
+ if (!filter.apply(this, arguments)) return;
+
+ var that = this,
+ type = exports.event.target.__data__.type,
+ mode = (exports.event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (exports.event.altKey ? MODE_CENTER : MODE_HANDLE),
+ signX = dim === Y ? null : signsX[type],
+ signY = dim === X ? null : signsY[type],
+ state = local$$1(that),
+ extent = state.extent,
+ selection$$1 = state.selection,
+ W = extent[0][0], w0, w1,
+ N = extent[0][1], n0, n1,
+ E = extent[1][0], e0, e1,
+ S = extent[1][1], s0, s1,
+ dx,
+ dy,
+ moving,
+ shifting = signX && signY && exports.event.shiftKey,
+ lockX,
+ lockY,
+ point0 = mouse(that),
+ point = point0,
+ emit = emitter(that, arguments).beforestart();
+
+ if (type === "overlay") {
+ state.selection = selection$$1 = [
+ [w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]],
+ [e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0]
+ ];
+ } else {
+ w0 = selection$$1[0][0];
+ n0 = selection$$1[0][1];
+ e0 = selection$$1[1][0];
+ s0 = selection$$1[1][1];
+ }
+
+ w1 = w0;
+ n1 = n0;
+ e1 = e0;
+ s1 = s0;
+
+ var group = select(that)
+ .attr("pointer-events", "none");
+
+ var overlay = group.selectAll(".overlay")
+ .attr("cursor", cursors[type]);
+
+ if (exports.event.touches) {
+ group
+ .on("touchmove.brush", moved, true)
+ .on("touchend.brush touchcancel.brush", ended, true);
+ } else {
+ var view = select(exports.event.view)
+ .on("keydown.brush", keydowned, true)
+ .on("keyup.brush", keyupped, true)
+ .on("mousemove.brush", moved, true)
+ .on("mouseup.brush", ended, true);
+
+ dragDisable(exports.event.view);
+ }
+
+ nopropagation$1();
+ interrupt(that);
+ redraw.call(that);
+ emit.start();
+
+ function moved() {
+ var point1 = mouse(that);
+ if (shifting && !lockX && !lockY) {
+ if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true;
+ else lockX = true;
+ }
+ point = point1;
+ moving = true;
+ noevent$1();
+ move();
+ }
+
+ function move() {
+ var t;
+
+ dx = point[0] - point0[0];
+ dy = point[1] - point0[1];
+
+ switch (mode) {
+ case MODE_SPACE:
+ case MODE_DRAG: {
+ if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx;
+ if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy;
+ break;
+ }
+ case MODE_HANDLE: {
+ if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0;
+ else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx;
+ if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0;
+ else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy;
+ break;
+ }
+ case MODE_CENTER: {
+ if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX));
+ if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY));
+ break;
+ }
+ }
+
+ if (e1 < w1) {
+ signX *= -1;
+ t = w0, w0 = e0, e0 = t;
+ t = w1, w1 = e1, e1 = t;
+ if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]);
+ }
+
+ if (s1 < n1) {
+ signY *= -1;
+ t = n0, n0 = s0, s0 = t;
+ t = n1, n1 = s1, s1 = t;
+ if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]);
+ }
+
+ if (state.selection) selection$$1 = state.selection; // May be set by brush.move!
+ if (lockX) w1 = selection$$1[0][0], e1 = selection$$1[1][0];
+ if (lockY) n1 = selection$$1[0][1], s1 = selection$$1[1][1];
+
+ if (selection$$1[0][0] !== w1
+ || selection$$1[0][1] !== n1
+ || selection$$1[1][0] !== e1
+ || selection$$1[1][1] !== s1) {
+ state.selection = [[w1, n1], [e1, s1]];
+ redraw.call(that);
+ emit.brush();
+ }
+ }
+
+ function ended() {
+ nopropagation$1();
+ if (exports.event.touches) {
+ if (exports.event.touches.length) return;
+ if (touchending) clearTimeout(touchending);
+ touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!
+ group.on("touchmove.brush touchend.brush touchcancel.brush", null);
+ } else {
+ yesdrag(exports.event.view, moving);
+ view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null);
+ }
+ group.attr("pointer-events", "all");
+ overlay.attr("cursor", cursors.overlay);
+ if (state.selection) selection$$1 = state.selection; // May be set by brush.move (on start)!
+ if (empty(selection$$1)) state.selection = null, redraw.call(that);
+ emit.end();
+ }
+
+ function keydowned() {
+ switch (exports.event.keyCode) {
+ case 16: { // SHIFT
+ shifting = signX && signY;
+ break;
+ }
+ case 18: { // ALT
+ if (mode === MODE_HANDLE) {
+ if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX;
+ if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY;
+ mode = MODE_CENTER;
+ move();
+ }
+ break;
+ }
+ case 32: { // SPACE; takes priority over ALT
+ if (mode === MODE_HANDLE || mode === MODE_CENTER) {
+ if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx;
+ if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy;
+ mode = MODE_SPACE;
+ overlay.attr("cursor", cursors.selection);
+ move();
+ }
+ break;
+ }
+ default: return;
+ }
+ noevent$1();
+ }
+
+ function keyupped() {
+ switch (exports.event.keyCode) {
+ case 16: { // SHIFT
+ if (shifting) {
+ lockX = lockY = shifting = false;
+ move();
+ }
+ break;
+ }
+ case 18: { // ALT
+ if (mode === MODE_CENTER) {
+ if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1;
+ if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1;
+ mode = MODE_HANDLE;
+ move();
+ }
+ break;
+ }
+ case 32: { // SPACE
+ if (mode === MODE_SPACE) {
+ if (exports.event.altKey) {
+ if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX;
+ if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY;
+ mode = MODE_CENTER;
+ } else {
+ if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1;
+ if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1;
+ mode = MODE_HANDLE;
+ }
+ overlay.attr("cursor", cursors[type]);
+ move();
+ }
+ break;
+ }
+ default: return;
+ }
+ noevent$1();
+ }
+ }
+
+ function initialize() {
+ var state = this.__brush || {selection: null};
+ state.extent = extent.apply(this, arguments);
+ state.dim = dim;
+ return state;
+ }
+
+ brush.extent = function(_) {
+ return arguments.length ? (extent = typeof _ === "function" ? _ : constant$4([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), brush) : extent;
+ };
+
+ brush.filter = function(_) {
+ return arguments.length ? (filter = typeof _ === "function" ? _ : constant$4(!!_), brush) : filter;
+ };
+
+ brush.handleSize = function(_) {
+ return arguments.length ? (handleSize = +_, brush) : handleSize;
+ };
+
+ brush.on = function() {
+ var value = listeners.on.apply(listeners, arguments);
+ return value === listeners ? brush : value;
+ };
+
+ return brush;
+}
+
+var cos = Math.cos;
+var sin = Math.sin;
+var pi$1 = Math.PI;
+var halfPi$1 = pi$1 / 2;
+var tau$1 = pi$1 * 2;
+var max$1 = Math.max;
+
+function compareValue(compare) {
+ return function(a, b) {
+ return compare(
+ a.source.value + a.target.value,
+ b.source.value + b.target.value
+ );
+ };
+}
+
+var chord = function() {
+ var padAngle = 0,
+ sortGroups = null,
+ sortSubgroups = null,
+ sortChords = null;
+
+ function chord(matrix) {
+ var n = matrix.length,
+ groupSums = [],
+ groupIndex = sequence(n),
+ subgroupIndex = [],
+ chords = [],
+ groups = chords.groups = new Array(n),
+ subgroups = new Array(n * n),
+ k,
+ x,
+ x0,
+ dx,
+ i,
+ j;
+
+ // Compute the sum.
+ k = 0, i = -1; while (++i < n) {
+ x = 0, j = -1; while (++j < n) {
+ x += matrix[i][j];
+ }
+ groupSums.push(x);
+ subgroupIndex.push(sequence(n));
+ k += x;
+ }
+
+ // Sort groups…
+ if (sortGroups) groupIndex.sort(function(a, b) {
+ return sortGroups(groupSums[a], groupSums[b]);
+ });
+
+ // Sort subgroups…
+ if (sortSubgroups) subgroupIndex.forEach(function(d, i) {
+ d.sort(function(a, b) {
+ return sortSubgroups(matrix[i][a], matrix[i][b]);
+ });
+ });
+
+ // Convert the sum to scaling factor for [0, 2pi].
+ // TODO Allow start and end angle to be specified?
+ // TODO Allow padding to be specified as percentage?
+ k = max$1(0, tau$1 - padAngle * n) / k;
+ dx = k ? padAngle : tau$1 / n;
+
+ // Compute the start and end angle for each group and subgroup.
+ // Note: Opera has a bug reordering object literal properties!
+ x = 0, i = -1; while (++i < n) {
+ x0 = x, j = -1; while (++j < n) {
+ var di = groupIndex[i],
+ dj = subgroupIndex[di][j],
+ v = matrix[di][dj],
+ a0 = x,
+ a1 = x += v * k;
+ subgroups[dj * n + di] = {
+ index: di,
+ subindex: dj,
+ startAngle: a0,
+ endAngle: a1,
+ value: v
+ };
+ }
+ groups[di] = {
+ index: di,
+ startAngle: x0,
+ endAngle: x,
+ value: groupSums[di]
+ };
+ x += dx;
+ }
+
+ // Generate chords for each (non-empty) subgroup-subgroup link.
+ i = -1; while (++i < n) {
+ j = i - 1; while (++j < n) {
+ var source = subgroups[j * n + i],
+ target = subgroups[i * n + j];
+ if (source.value || target.value) {
+ chords.push(source.value < target.value
+ ? {source: target, target: source}
+ : {source: source, target: target});
+ }
+ }
+ }
+
+ return sortChords ? chords.sort(sortChords) : chords;
+ }
+
+ chord.padAngle = function(_) {
+ return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle;
+ };
+
+ chord.sortGroups = function(_) {
+ return arguments.length ? (sortGroups = _, chord) : sortGroups;
+ };
+
+ chord.sortSubgroups = function(_) {
+ return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups;
+ };
+
+ chord.sortChords = function(_) {
+ return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._;
+ };
+
+ return chord;
+};
+
+var slice$2 = Array.prototype.slice;
+
+var constant$5 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var pi$2 = Math.PI;
+var tau$2 = 2 * pi$2;
+var epsilon$1 = 1e-6;
+var tauEpsilon = tau$2 - epsilon$1;
+
+function Path() {
+ this._x0 = this._y0 = // start of current subpath
+ this._x1 = this._y1 = null; // end of current subpath
+ this._ = "";
+}
+
+function path() {
+ return new Path;
+}
+
+Path.prototype = path.prototype = {
+ constructor: Path,
+ moveTo: function(x, y) {
+ this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y);
+ },
+ closePath: function() {
+ if (this._x1 !== null) {
+ this._x1 = this._x0, this._y1 = this._y0;
+ this._ += "Z";
+ }
+ },
+ lineTo: function(x, y) {
+ this._ += "L" + (this._x1 = +x) + "," + (this._y1 = +y);
+ },
+ quadraticCurveTo: function(x1, y1, x, y) {
+ this._ += "Q" + (+x1) + "," + (+y1) + "," + (this._x1 = +x) + "," + (this._y1 = +y);
+ },
+ bezierCurveTo: function(x1, y1, x2, y2, x, y) {
+ this._ += "C" + (+x1) + "," + (+y1) + "," + (+x2) + "," + (+y2) + "," + (this._x1 = +x) + "," + (this._y1 = +y);
+ },
+ arcTo: function(x1, y1, x2, y2, r) {
+ x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r;
+ var x0 = this._x1,
+ y0 = this._y1,
+ x21 = x2 - x1,
+ y21 = y2 - y1,
+ x01 = x0 - x1,
+ y01 = y0 - y1,
+ l01_2 = x01 * x01 + y01 * y01;
+
+ // Is the radius negative? Error.
+ if (r < 0) throw new Error("negative radius: " + r);
+
+ // Is this path empty? Move to (x1,y1).
+ if (this._x1 === null) {
+ this._ += "M" + (this._x1 = x1) + "," + (this._y1 = y1);
+ }
+
+ // Or, is (x1,y1) coincident with (x0,y0)? Do nothing.
+ else if (!(l01_2 > epsilon$1)) {}
+
+ // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear?
+ // Equivalently, is (x1,y1) coincident with (x2,y2)?
+ // Or, is the radius zero? Line to (x1,y1).
+ else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon$1) || !r) {
+ this._ += "L" + (this._x1 = x1) + "," + (this._y1 = y1);
+ }
+
+ // Otherwise, draw an arc!
+ else {
+ var x20 = x2 - x0,
+ y20 = y2 - y0,
+ l21_2 = x21 * x21 + y21 * y21,
+ l20_2 = x20 * x20 + y20 * y20,
+ l21 = Math.sqrt(l21_2),
+ l01 = Math.sqrt(l01_2),
+ l = r * Math.tan((pi$2 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2),
+ t01 = l / l01,
+ t21 = l / l21;
+
+ // If the start tangent is not coincident with (x0,y0), line to.
+ if (Math.abs(t01 - 1) > epsilon$1) {
+ this._ += "L" + (x1 + t01 * x01) + "," + (y1 + t01 * y01);
+ }
+
+ this._ += "A" + r + "," + r + ",0,0," + (+(y01 * x20 > x01 * y20)) + "," + (this._x1 = x1 + t21 * x21) + "," + (this._y1 = y1 + t21 * y21);
+ }
+ },
+ arc: function(x, y, r, a0, a1, ccw) {
+ x = +x, y = +y, r = +r;
+ var dx = r * Math.cos(a0),
+ dy = r * Math.sin(a0),
+ x0 = x + dx,
+ y0 = y + dy,
+ cw = 1 ^ ccw,
+ da = ccw ? a0 - a1 : a1 - a0;
+
+ // Is the radius negative? Error.
+ if (r < 0) throw new Error("negative radius: " + r);
+
+ // Is this path empty? Move to (x0,y0).
+ if (this._x1 === null) {
+ this._ += "M" + x0 + "," + y0;
+ }
+
+ // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0).
+ else if (Math.abs(this._x1 - x0) > epsilon$1 || Math.abs(this._y1 - y0) > epsilon$1) {
+ this._ += "L" + x0 + "," + y0;
+ }
+
+ // Is this arc empty? We’re done.
+ if (!r) return;
+
+ // Does the angle go the wrong way? Flip the direction.
+ if (da < 0) da = da % tau$2 + tau$2;
+
+ // Is this a complete circle? Draw two arcs to complete the circle.
+ if (da > tauEpsilon) {
+ this._ += "A" + r + "," + r + ",0,1," + cw + "," + (x - dx) + "," + (y - dy) + "A" + r + "," + r + ",0,1," + cw + "," + (this._x1 = x0) + "," + (this._y1 = y0);
+ }
+
+ // Is this arc non-empty? Draw an arc!
+ else if (da > epsilon$1) {
+ this._ += "A" + r + "," + r + ",0," + (+(da >= pi$2)) + "," + cw + "," + (this._x1 = x + r * Math.cos(a1)) + "," + (this._y1 = y + r * Math.sin(a1));
+ }
+ },
+ rect: function(x, y, w, h) {
+ this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y) + "h" + (+w) + "v" + (+h) + "h" + (-w) + "Z";
+ },
+ toString: function() {
+ return this._;
+ }
+};
+
+function defaultSource(d) {
+ return d.source;
+}
+
+function defaultTarget(d) {
+ return d.target;
+}
+
+function defaultRadius(d) {
+ return d.radius;
+}
+
+function defaultStartAngle(d) {
+ return d.startAngle;
+}
+
+function defaultEndAngle(d) {
+ return d.endAngle;
+}
+
+var ribbon = function() {
+ var source = defaultSource,
+ target = defaultTarget,
+ radius = defaultRadius,
+ startAngle = defaultStartAngle,
+ endAngle = defaultEndAngle,
+ context = null;
+
+ function ribbon() {
+ var buffer,
+ argv = slice$2.call(arguments),
+ s = source.apply(this, argv),
+ t = target.apply(this, argv),
+ sr = +radius.apply(this, (argv[0] = s, argv)),
+ sa0 = startAngle.apply(this, argv) - halfPi$1,
+ sa1 = endAngle.apply(this, argv) - halfPi$1,
+ sx0 = sr * cos(sa0),
+ sy0 = sr * sin(sa0),
+ tr = +radius.apply(this, (argv[0] = t, argv)),
+ ta0 = startAngle.apply(this, argv) - halfPi$1,
+ ta1 = endAngle.apply(this, argv) - halfPi$1;
+
+ if (!context) context = buffer = path();
+
+ context.moveTo(sx0, sy0);
+ context.arc(0, 0, sr, sa0, sa1);
+ if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr?
+ context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0));
+ context.arc(0, 0, tr, ta0, ta1);
+ }
+ context.quadraticCurveTo(0, 0, sx0, sy0);
+ context.closePath();
+
+ if (buffer) return context = null, buffer + "" || null;
+ }
+
+ ribbon.radius = function(_) {
+ return arguments.length ? (radius = typeof _ === "function" ? _ : constant$5(+_), ribbon) : radius;
+ };
+
+ ribbon.startAngle = function(_) {
+ return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$5(+_), ribbon) : startAngle;
+ };
+
+ ribbon.endAngle = function(_) {
+ return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$5(+_), ribbon) : endAngle;
+ };
+
+ ribbon.source = function(_) {
+ return arguments.length ? (source = _, ribbon) : source;
+ };
+
+ ribbon.target = function(_) {
+ return arguments.length ? (target = _, ribbon) : target;
+ };
+
+ ribbon.context = function(_) {
+ return arguments.length ? ((context = _ == null ? null : _), ribbon) : context;
+ };
+
+ return ribbon;
+};
+
+var prefix = "$";
+
+function Map() {}
+
+Map.prototype = map$1.prototype = {
+ constructor: Map,
+ has: function(key) {
+ return (prefix + key) in this;
+ },
+ get: function(key) {
+ return this[prefix + key];
+ },
+ set: function(key, value) {
+ this[prefix + key] = value;
+ return this;
+ },
+ remove: function(key) {
+ var property = prefix + key;
+ return property in this && delete this[property];
+ },
+ clear: function() {
+ for (var property in this) if (property[0] === prefix) delete this[property];
+ },
+ keys: function() {
+ var keys = [];
+ for (var property in this) if (property[0] === prefix) keys.push(property.slice(1));
+ return keys;
+ },
+ values: function() {
+ var values = [];
+ for (var property in this) if (property[0] === prefix) values.push(this[property]);
+ return values;
+ },
+ entries: function() {
+ var entries = [];
+ for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]});
+ return entries;
+ },
+ size: function() {
+ var size = 0;
+ for (var property in this) if (property[0] === prefix) ++size;
+ return size;
+ },
+ empty: function() {
+ for (var property in this) if (property[0] === prefix) return false;
+ return true;
+ },
+ each: function(f) {
+ for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this);
+ }
+};
+
+function map$1(object, f) {
+ var map = new Map;
+
+ // Copy constructor.
+ if (object instanceof Map) object.each(function(value, key) { map.set(key, value); });
+
+ // Index array by numeric index or specified key function.
+ else if (Array.isArray(object)) {
+ var i = -1,
+ n = object.length,
+ o;
+
+ if (f == null) while (++i < n) map.set(i, object[i]);
+ else while (++i < n) map.set(f(o = object[i], i, object), o);
+ }
+
+ // Convert object to map.
+ else if (object) for (var key in object) map.set(key, object[key]);
+
+ return map;
+}
+
+var nest = function() {
+ var keys = [],
+ sortKeys = [],
+ sortValues,
+ rollup,
+ nest;
+
+ function apply(array, depth, createResult, setResult) {
+ if (depth >= keys.length) return rollup != null
+ ? rollup(array) : (sortValues != null
+ ? array.sort(sortValues)
+ : array);
+
+ var i = -1,
+ n = array.length,
+ key = keys[depth++],
+ keyValue,
+ value,
+ valuesByKey = map$1(),
+ values,
+ result = createResult();
+
+ while (++i < n) {
+ if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) {
+ values.push(value);
+ } else {
+ valuesByKey.set(keyValue, [value]);
+ }
+ }
+
+ valuesByKey.each(function(values, key) {
+ setResult(result, key, apply(values, depth, createResult, setResult));
+ });
+
+ return result;
+ }
+
+ function entries(map, depth) {
+ if (++depth > keys.length) return map;
+ var array, sortKey = sortKeys[depth - 1];
+ if (rollup != null && depth >= keys.length) array = map.entries();
+ else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); });
+ return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array;
+ }
+
+ return nest = {
+ object: function(array) { return apply(array, 0, createObject, setObject); },
+ map: function(array) { return apply(array, 0, createMap, setMap); },
+ entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); },
+ key: function(d) { keys.push(d); return nest; },
+ sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; },
+ sortValues: function(order) { sortValues = order; return nest; },
+ rollup: function(f) { rollup = f; return nest; }
+ };
+};
+
+function createObject() {
+ return {};
+}
+
+function setObject(object, key, value) {
+ object[key] = value;
+}
+
+function createMap() {
+ return map$1();
+}
+
+function setMap(map, key, value) {
+ map.set(key, value);
+}
+
+function Set() {}
+
+var proto = map$1.prototype;
+
+Set.prototype = set$2.prototype = {
+ constructor: Set,
+ has: proto.has,
+ add: function(value) {
+ value += "";
+ this[prefix + value] = value;
+ return this;
+ },
+ remove: proto.remove,
+ clear: proto.clear,
+ values: proto.keys,
+ size: proto.size,
+ empty: proto.empty,
+ each: proto.each
+};
+
+function set$2(object, f) {
+ var set = new Set;
+
+ // Copy constructor.
+ if (object instanceof Set) object.each(function(value) { set.add(value); });
+
+ // Otherwise, assume it’s an array.
+ else if (object) {
+ var i = -1, n = object.length;
+ if (f == null) while (++i < n) set.add(object[i]);
+ else while (++i < n) set.add(f(object[i], i, object));
+ }
+
+ return set;
+}
+
+var keys = function(map) {
+ var keys = [];
+ for (var key in map) keys.push(key);
+ return keys;
+};
+
+var values = function(map) {
+ var values = [];
+ for (var key in map) values.push(map[key]);
+ return values;
+};
+
+var entries = function(map) {
+ var entries = [];
+ for (var key in map) entries.push({key: key, value: map[key]});
+ return entries;
+};
+
+function objectConverter(columns) {
+ return new Function("d", "return {" + columns.map(function(name, i) {
+ return JSON.stringify(name) + ": d[" + i + "]";
+ }).join(",") + "}");
+}
+
+function customConverter(columns, f) {
+ var object = objectConverter(columns);
+ return function(row, i) {
+ return f(object(row), i, columns);
+ };
+}
+
+// Compute unique columns in order of discovery.
+function inferColumns(rows) {
+ var columnSet = Object.create(null),
+ columns = [];
+
+ rows.forEach(function(row) {
+ for (var column in row) {
+ if (!(column in columnSet)) {
+ columns.push(columnSet[column] = column);
+ }
+ }
+ });
+
+ return columns;
+}
+
+var dsv = function(delimiter) {
+ var reFormat = new RegExp("[\"" + delimiter + "\n\r]"),
+ delimiterCode = delimiter.charCodeAt(0);
+
+ function parse(text, f) {
+ var convert, columns, rows = parseRows(text, function(row, i) {
+ if (convert) return convert(row, i - 1);
+ columns = row, convert = f ? customConverter(row, f) : objectConverter(row);
+ });
+ rows.columns = columns;
+ return rows;
+ }
+
+ function parseRows(text, f) {
+ var EOL = {}, // sentinel value for end-of-line
+ EOF = {}, // sentinel value for end-of-file
+ rows = [], // output rows
+ N = text.length,
+ I = 0, // current character index
+ n = 0, // the current line number
+ t, // the current token
+ eol; // is the current token followed by EOL?
+
+ function token() {
+ if (I >= N) return EOF; // special case: end of file
+ if (eol) return eol = false, EOL; // special case: end of line
+
+ // special case: quotes
+ var j = I, c;
+ if (text.charCodeAt(j) === 34) {
+ var i = j;
+ while (i++ < N) {
+ if (text.charCodeAt(i) === 34) {
+ if (text.charCodeAt(i + 1) !== 34) break;
+ ++i;
+ }
+ }
+ I = i + 2;
+ c = text.charCodeAt(i + 1);
+ if (c === 13) {
+ eol = true;
+ if (text.charCodeAt(i + 2) === 10) ++I;
+ } else if (c === 10) {
+ eol = true;
+ }
+ return text.slice(j + 1, i).replace(/""/g, "\"");
+ }
+
+ // common case: find next delimiter or newline
+ while (I < N) {
+ var k = 1;
+ c = text.charCodeAt(I++);
+ if (c === 10) eol = true; // \n
+ else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \r|\r\n
+ else if (c !== delimiterCode) continue;
+ return text.slice(j, I - k);
+ }
+
+ // special case: last token before EOF
+ return text.slice(j);
+ }
+
+ while ((t = token()) !== EOF) {
+ var a = [];
+ while (t !== EOL && t !== EOF) {
+ a.push(t);
+ t = token();
+ }
+ if (f && (a = f(a, n++)) == null) continue;
+ rows.push(a);
+ }
+
+ return rows;
+ }
+
+ function format(rows, columns) {
+ if (columns == null) columns = inferColumns(rows);
+ return [columns.map(formatValue).join(delimiter)].concat(rows.map(function(row) {
+ return columns.map(function(column) {
+ return formatValue(row[column]);
+ }).join(delimiter);
+ })).join("\n");
+ }
+
+ function formatRows(rows) {
+ return rows.map(formatRow).join("\n");
+ }
+
+ function formatRow(row) {
+ return row.map(formatValue).join(delimiter);
+ }
+
+ function formatValue(text) {
+ return text == null ? ""
+ : reFormat.test(text += "") ? "\"" + text.replace(/\"/g, "\"\"") + "\""
+ : text;
+ }
+
+ return {
+ parse: parse,
+ parseRows: parseRows,
+ format: format,
+ formatRows: formatRows
+ };
+};
+
+var csv = dsv(",");
+
+var csvParse = csv.parse;
+var csvParseRows = csv.parseRows;
+var csvFormat = csv.format;
+var csvFormatRows = csv.formatRows;
+
+var tsv = dsv("\t");
+
+var tsvParse = tsv.parse;
+var tsvParseRows = tsv.parseRows;
+var tsvFormat = tsv.format;
+var tsvFormatRows = tsv.formatRows;
+
+var center$1 = function(x, y) {
+ var nodes;
+
+ if (x == null) x = 0;
+ if (y == null) y = 0;
+
+ function force() {
+ var i,
+ n = nodes.length,
+ node,
+ sx = 0,
+ sy = 0;
+
+ for (i = 0; i < n; ++i) {
+ node = nodes[i], sx += node.x, sy += node.y;
+ }
+
+ for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) {
+ node = nodes[i], node.x -= sx, node.y -= sy;
+ }
+ }
+
+ force.initialize = function(_) {
+ nodes = _;
+ };
+
+ force.x = function(_) {
+ return arguments.length ? (x = +_, force) : x;
+ };
+
+ force.y = function(_) {
+ return arguments.length ? (y = +_, force) : y;
+ };
+
+ return force;
+};
+
+var constant$6 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var jiggle = function() {
+ return (Math.random() - 0.5) * 1e-6;
+};
+
+var tree_add = function(d) {
+ var x = +this._x.call(null, d),
+ y = +this._y.call(null, d);
+ return add(this.cover(x, y), x, y, d);
+};
+
+function add(tree, x, y, d) {
+ if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points
+
+ var parent,
+ node = tree._root,
+ leaf = {data: d},
+ x0 = tree._x0,
+ y0 = tree._y0,
+ x1 = tree._x1,
+ y1 = tree._y1,
+ xm,
+ ym,
+ xp,
+ yp,
+ right,
+ bottom,
+ i,
+ j;
+
+ // If the tree is empty, initialize the root as a leaf.
+ if (!node) return tree._root = leaf, tree;
+
+ // Find the existing leaf for the new point, or add it.
+ while (node.length) {
+ if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
+ if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
+ if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree;
+ }
+
+ // Is the new point is exactly coincident with the existing point?
+ xp = +tree._x.call(null, node.data);
+ yp = +tree._y.call(null, node.data);
+ if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree;
+
+ // Otherwise, split the leaf node until the old and new point are separated.
+ do {
+ parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4);
+ if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
+ if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
+ } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm)));
+ return parent[j] = node, parent[i] = leaf, tree;
+}
+
+function addAll(data) {
+ var d, i, n = data.length,
+ x,
+ y,
+ xz = new Array(n),
+ yz = new Array(n),
+ x0 = Infinity,
+ y0 = Infinity,
+ x1 = -Infinity,
+ y1 = -Infinity;
+
+ // Compute the points and their extent.
+ for (i = 0; i < n; ++i) {
+ if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue;
+ xz[i] = x;
+ yz[i] = y;
+ if (x < x0) x0 = x;
+ if (x > x1) x1 = x;
+ if (y < y0) y0 = y;
+ if (y > y1) y1 = y;
+ }
+
+ // If there were no (valid) points, inherit the existing extent.
+ if (x1 < x0) x0 = this._x0, x1 = this._x1;
+ if (y1 < y0) y0 = this._y0, y1 = this._y1;
+
+ // Expand the tree to cover the new points.
+ this.cover(x0, y0).cover(x1, y1);
+
+ // Add the new points.
+ for (i = 0; i < n; ++i) {
+ add(this, xz[i], yz[i], data[i]);
+ }
+
+ return this;
+}
+
+var tree_cover = function(x, y) {
+ if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points
+
+ var x0 = this._x0,
+ y0 = this._y0,
+ x1 = this._x1,
+ y1 = this._y1;
+
+ // If the quadtree has no extent, initialize them.
+ // Integer extent are necessary so that if we later double the extent,
+ // the existing quadrant boundaries don’t change due to floating point error!
+ if (isNaN(x0)) {
+ x1 = (x0 = Math.floor(x)) + 1;
+ y1 = (y0 = Math.floor(y)) + 1;
+ }
+
+ // Otherwise, double repeatedly to cover.
+ else if (x0 > x || x > x1 || y0 > y || y > y1) {
+ var z = x1 - x0,
+ node = this._root,
+ parent,
+ i;
+
+ switch (i = (y < (y0 + y1) / 2) << 1 | (x < (x0 + x1) / 2)) {
+ case 0: {
+ do parent = new Array(4), parent[i] = node, node = parent;
+ while (z *= 2, x1 = x0 + z, y1 = y0 + z, x > x1 || y > y1);
+ break;
+ }
+ case 1: {
+ do parent = new Array(4), parent[i] = node, node = parent;
+ while (z *= 2, x0 = x1 - z, y1 = y0 + z, x0 > x || y > y1);
+ break;
+ }
+ case 2: {
+ do parent = new Array(4), parent[i] = node, node = parent;
+ while (z *= 2, x1 = x0 + z, y0 = y1 - z, x > x1 || y0 > y);
+ break;
+ }
+ case 3: {
+ do parent = new Array(4), parent[i] = node, node = parent;
+ while (z *= 2, x0 = x1 - z, y0 = y1 - z, x0 > x || y0 > y);
+ break;
+ }
+ }
+
+ if (this._root && this._root.length) this._root = node;
+ }
+
+ // If the quadtree covers the point already, just return.
+ else return this;
+
+ this._x0 = x0;
+ this._y0 = y0;
+ this._x1 = x1;
+ this._y1 = y1;
+ return this;
+};
+
+var tree_data = function() {
+ var data = [];
+ this.visit(function(node) {
+ if (!node.length) do data.push(node.data); while (node = node.next)
+ });
+ return data;
+};
+
+var tree_extent = function(_) {
+ return arguments.length
+ ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1])
+ : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]];
+};
+
+var Quad = function(node, x0, y0, x1, y1) {
+ this.node = node;
+ this.x0 = x0;
+ this.y0 = y0;
+ this.x1 = x1;
+ this.y1 = y1;
+};
+
+var tree_find = function(x, y, radius) {
+ var data,
+ x0 = this._x0,
+ y0 = this._y0,
+ x1,
+ y1,
+ x2,
+ y2,
+ x3 = this._x1,
+ y3 = this._y1,
+ quads = [],
+ node = this._root,
+ q,
+ i;
+
+ if (node) quads.push(new Quad(node, x0, y0, x3, y3));
+ if (radius == null) radius = Infinity;
+ else {
+ x0 = x - radius, y0 = y - radius;
+ x3 = x + radius, y3 = y + radius;
+ radius *= radius;
+ }
+
+ while (q = quads.pop()) {
+
+ // Stop searching if this quadrant can’t contain a closer node.
+ if (!(node = q.node)
+ || (x1 = q.x0) > x3
+ || (y1 = q.y0) > y3
+ || (x2 = q.x1) < x0
+ || (y2 = q.y1) < y0) continue;
+
+ // Bisect the current quadrant.
+ if (node.length) {
+ var xm = (x1 + x2) / 2,
+ ym = (y1 + y2) / 2;
+
+ quads.push(
+ new Quad(node[3], xm, ym, x2, y2),
+ new Quad(node[2], x1, ym, xm, y2),
+ new Quad(node[1], xm, y1, x2, ym),
+ new Quad(node[0], x1, y1, xm, ym)
+ );
+
+ // Visit the closest quadrant first.
+ if (i = (y >= ym) << 1 | (x >= xm)) {
+ q = quads[quads.length - 1];
+ quads[quads.length - 1] = quads[quads.length - 1 - i];
+ quads[quads.length - 1 - i] = q;
+ }
+ }
+
+ // Visit this point. (Visiting coincident points isn’t necessary!)
+ else {
+ var dx = x - +this._x.call(null, node.data),
+ dy = y - +this._y.call(null, node.data),
+ d2 = dx * dx + dy * dy;
+ if (d2 < radius) {
+ var d = Math.sqrt(radius = d2);
+ x0 = x - d, y0 = y - d;
+ x3 = x + d, y3 = y + d;
+ data = node.data;
+ }
+ }
+ }
+
+ return data;
+};
+
+var tree_remove = function(d) {
+ if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points
+
+ var parent,
+ node = this._root,
+ retainer,
+ previous,
+ next,
+ x0 = this._x0,
+ y0 = this._y0,
+ x1 = this._x1,
+ y1 = this._y1,
+ x,
+ y,
+ xm,
+ ym,
+ right,
+ bottom,
+ i,
+ j;
+
+ // If the tree is empty, initialize the root as a leaf.
+ if (!node) return this;
+
+ // Find the leaf node for the point.
+ // While descending, also retain the deepest parent with a non-removed sibling.
+ if (node.length) while (true) {
+ if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
+ if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
+ if (!(parent = node, node = node[i = bottom << 1 | right])) return this;
+ if (!node.length) break;
+ if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i;
+ }
+
+ // Find the point to remove.
+ while (node.data !== d) if (!(previous = node, node = node.next)) return this;
+ if (next = node.next) delete node.next;
+
+ // If there are multiple coincident points, remove just the point.
+ if (previous) return (next ? previous.next = next : delete previous.next), this;
+
+ // If this is the root point, remove it.
+ if (!parent) return this._root = next, this;
+
+ // Remove this leaf.
+ next ? parent[i] = next : delete parent[i];
+
+ // If the parent now contains exactly one leaf, collapse superfluous parents.
+ if ((node = parent[0] || parent[1] || parent[2] || parent[3])
+ && node === (parent[3] || parent[2] || parent[1] || parent[0])
+ && !node.length) {
+ if (retainer) retainer[j] = node;
+ else this._root = node;
+ }
+
+ return this;
+};
+
+function removeAll(data) {
+ for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);
+ return this;
+}
+
+var tree_root = function() {
+ return this._root;
+};
+
+var tree_size = function() {
+ var size = 0;
+ this.visit(function(node) {
+ if (!node.length) do ++size; while (node = node.next)
+ });
+ return size;
+};
+
+var tree_visit = function(callback) {
+ var quads = [], q, node = this._root, child, x0, y0, x1, y1;
+ if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1));
+ while (q = quads.pop()) {
+ if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) {
+ var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;
+ if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
+ if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
+ if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
+ if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
+ }
+ }
+ return this;
+};
+
+var tree_visitAfter = function(callback) {
+ var quads = [], next = [], q;
+ if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1));
+ while (q = quads.pop()) {
+ var node = q.node;
+ if (node.length) {
+ var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;
+ if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
+ if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
+ if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
+ if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
+ }
+ next.push(q);
+ }
+ while (q = next.pop()) {
+ callback(q.node, q.x0, q.y0, q.x1, q.y1);
+ }
+ return this;
+};
+
+function defaultX(d) {
+ return d[0];
+}
+
+var tree_x = function(_) {
+ return arguments.length ? (this._x = _, this) : this._x;
+};
+
+function defaultY(d) {
+ return d[1];
+}
+
+var tree_y = function(_) {
+ return arguments.length ? (this._y = _, this) : this._y;
+};
+
+function quadtree(nodes, x, y) {
+ var tree = new Quadtree(x == null ? defaultX : x, y == null ? defaultY : y, NaN, NaN, NaN, NaN);
+ return nodes == null ? tree : tree.addAll(nodes);
+}
+
+function Quadtree(x, y, x0, y0, x1, y1) {
+ this._x = x;
+ this._y = y;
+ this._x0 = x0;
+ this._y0 = y0;
+ this._x1 = x1;
+ this._y1 = y1;
+ this._root = undefined;
+}
+
+function leaf_copy(leaf) {
+ var copy = {data: leaf.data}, next = copy;
+ while (leaf = leaf.next) next = next.next = {data: leaf.data};
+ return copy;
+}
+
+var treeProto = quadtree.prototype = Quadtree.prototype;
+
+treeProto.copy = function() {
+ var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1),
+ node = this._root,
+ nodes,
+ child;
+
+ if (!node) return copy;
+
+ if (!node.length) return copy._root = leaf_copy(node), copy;
+
+ nodes = [{source: node, target: copy._root = new Array(4)}];
+ while (node = nodes.pop()) {
+ for (var i = 0; i < 4; ++i) {
+ if (child = node.source[i]) {
+ if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)});
+ else node.target[i] = leaf_copy(child);
+ }
+ }
+ }
+
+ return copy;
+};
+
+treeProto.add = tree_add;
+treeProto.addAll = addAll;
+treeProto.cover = tree_cover;
+treeProto.data = tree_data;
+treeProto.extent = tree_extent;
+treeProto.find = tree_find;
+treeProto.remove = tree_remove;
+treeProto.removeAll = removeAll;
+treeProto.root = tree_root;
+treeProto.size = tree_size;
+treeProto.visit = tree_visit;
+treeProto.visitAfter = tree_visitAfter;
+treeProto.x = tree_x;
+treeProto.y = tree_y;
+
+function x(d) {
+ return d.x + d.vx;
+}
+
+function y(d) {
+ return d.y + d.vy;
+}
+
+var collide = function(radius) {
+ var nodes,
+ radii,
+ strength = 1,
+ iterations = 1;
+
+ if (typeof radius !== "function") radius = constant$6(radius == null ? 1 : +radius);
+
+ function force() {
+ var i, n = nodes.length,
+ tree,
+ node,
+ xi,
+ yi,
+ ri,
+ ri2;
+
+ for (var k = 0; k < iterations; ++k) {
+ tree = quadtree(nodes, x, y).visitAfter(prepare);
+ for (i = 0; i < n; ++i) {
+ node = nodes[i];
+ ri = radii[node.index], ri2 = ri * ri;
+ xi = node.x + node.vx;
+ yi = node.y + node.vy;
+ tree.visit(apply);
+ }
+ }
+
+ function apply(quad, x0, y0, x1, y1) {
+ var data = quad.data, rj = quad.r, r = ri + rj;
+ if (data) {
+ if (data.index > node.index) {
+ var x = xi - data.x - data.vx,
+ y = yi - data.y - data.vy,
+ l = x * x + y * y;
+ if (l < r * r) {
+ if (x === 0) x = jiggle(), l += x * x;
+ if (y === 0) y = jiggle(), l += y * y;
+ l = (r - (l = Math.sqrt(l))) / l * strength;
+ node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj));
+ node.vy += (y *= l) * r;
+ data.vx -= x * (r = 1 - r);
+ data.vy -= y * r;
+ }
+ }
+ return;
+ }
+ return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r;
+ }
+ }
+
+ function prepare(quad) {
+ if (quad.data) return quad.r = radii[quad.data.index];
+ for (var i = quad.r = 0; i < 4; ++i) {
+ if (quad[i] && quad[i].r > quad.r) {
+ quad.r = quad[i].r;
+ }
+ }
+ }
+
+ function initialize() {
+ if (!nodes) return;
+ var i, n = nodes.length, node;
+ radii = new Array(n);
+ for (i = 0; i < n; ++i) node = nodes[i], radii[node.index] = +radius(node, i, nodes);
+ }
+
+ force.initialize = function(_) {
+ nodes = _;
+ initialize();
+ };
+
+ force.iterations = function(_) {
+ return arguments.length ? (iterations = +_, force) : iterations;
+ };
+
+ force.strength = function(_) {
+ return arguments.length ? (strength = +_, force) : strength;
+ };
+
+ force.radius = function(_) {
+ return arguments.length ? (radius = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : radius;
+ };
+
+ return force;
+};
+
+function index(d) {
+ return d.index;
+}
+
+function find(nodeById, nodeId) {
+ var node = nodeById.get(nodeId);
+ if (!node) throw new Error("missing: " + nodeId);
+ return node;
+}
+
+var link = function(links) {
+ var id = index,
+ strength = defaultStrength,
+ strengths,
+ distance = constant$6(30),
+ distances,
+ nodes,
+ count,
+ bias,
+ iterations = 1;
+
+ if (links == null) links = [];
+
+ function defaultStrength(link) {
+ return 1 / Math.min(count[link.source.index], count[link.target.index]);
+ }
+
+ function force(alpha) {
+ for (var k = 0, n = links.length; k < iterations; ++k) {
+ for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) {
+ link = links[i], source = link.source, target = link.target;
+ x = target.x + target.vx - source.x - source.vx || jiggle();
+ y = target.y + target.vy - source.y - source.vy || jiggle();
+ l = Math.sqrt(x * x + y * y);
+ l = (l - distances[i]) / l * alpha * strengths[i];
+ x *= l, y *= l;
+ target.vx -= x * (b = bias[i]);
+ target.vy -= y * b;
+ source.vx += x * (b = 1 - b);
+ source.vy += y * b;
+ }
+ }
+ }
+
+ function initialize() {
+ if (!nodes) return;
+
+ var i,
+ n = nodes.length,
+ m = links.length,
+ nodeById = map$1(nodes, id),
+ link;
+
+ for (i = 0, count = new Array(n); i < m; ++i) {
+ link = links[i], link.index = i;
+ if (typeof link.source !== "object") link.source = find(nodeById, link.source);
+ if (typeof link.target !== "object") link.target = find(nodeById, link.target);
+ count[link.source.index] = (count[link.source.index] || 0) + 1;
+ count[link.target.index] = (count[link.target.index] || 0) + 1;
+ }
+
+ for (i = 0, bias = new Array(m); i < m; ++i) {
+ link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]);
+ }
+
+ strengths = new Array(m), initializeStrength();
+ distances = new Array(m), initializeDistance();
+ }
+
+ function initializeStrength() {
+ if (!nodes) return;
+
+ for (var i = 0, n = links.length; i < n; ++i) {
+ strengths[i] = +strength(links[i], i, links);
+ }
+ }
+
+ function initializeDistance() {
+ if (!nodes) return;
+
+ for (var i = 0, n = links.length; i < n; ++i) {
+ distances[i] = +distance(links[i], i, links);
+ }
+ }
+
+ force.initialize = function(_) {
+ nodes = _;
+ initialize();
+ };
+
+ force.links = function(_) {
+ return arguments.length ? (links = _, initialize(), force) : links;
+ };
+
+ force.id = function(_) {
+ return arguments.length ? (id = _, force) : id;
+ };
+
+ force.iterations = function(_) {
+ return arguments.length ? (iterations = +_, force) : iterations;
+ };
+
+ force.strength = function(_) {
+ return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initializeStrength(), force) : strength;
+ };
+
+ force.distance = function(_) {
+ return arguments.length ? (distance = typeof _ === "function" ? _ : constant$6(+_), initializeDistance(), force) : distance;
+ };
+
+ return force;
+};
+
+function x$1(d) {
+ return d.x;
+}
+
+function y$1(d) {
+ return d.y;
+}
+
+var initialRadius = 10;
+var initialAngle = Math.PI * (3 - Math.sqrt(5));
+
+var simulation = function(nodes) {
+ var simulation,
+ alpha = 1,
+ alphaMin = 0.001,
+ alphaDecay = 1 - Math.pow(alphaMin, 1 / 300),
+ alphaTarget = 0,
+ velocityDecay = 0.6,
+ forces = map$1(),
+ stepper = timer(step),
+ event = dispatch("tick", "end");
+
+ if (nodes == null) nodes = [];
+
+ function step() {
+ tick();
+ event.call("tick", simulation);
+ if (alpha < alphaMin) {
+ stepper.stop();
+ event.call("end", simulation);
+ }
+ }
+
+ function tick() {
+ var i, n = nodes.length, node;
+
+ alpha += (alphaTarget - alpha) * alphaDecay;
+
+ forces.each(function(force) {
+ force(alpha);
+ });
+
+ for (i = 0; i < n; ++i) {
+ node = nodes[i];
+ if (node.fx == null) node.x += node.vx *= velocityDecay;
+ else node.x = node.fx, node.vx = 0;
+ if (node.fy == null) node.y += node.vy *= velocityDecay;
+ else node.y = node.fy, node.vy = 0;
+ }
+ }
+
+ function initializeNodes() {
+ for (var i = 0, n = nodes.length, node; i < n; ++i) {
+ node = nodes[i], node.index = i;
+ if (isNaN(node.x) || isNaN(node.y)) {
+ var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle;
+ node.x = radius * Math.cos(angle);
+ node.y = radius * Math.sin(angle);
+ }
+ if (isNaN(node.vx) || isNaN(node.vy)) {
+ node.vx = node.vy = 0;
+ }
+ }
+ }
+
+ function initializeForce(force) {
+ if (force.initialize) force.initialize(nodes);
+ return force;
+ }
+
+ initializeNodes();
+
+ return simulation = {
+ tick: tick,
+
+ restart: function() {
+ return stepper.restart(step), simulation;
+ },
+
+ stop: function() {
+ return stepper.stop(), simulation;
+ },
+
+ nodes: function(_) {
+ return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes;
+ },
+
+ alpha: function(_) {
+ return arguments.length ? (alpha = +_, simulation) : alpha;
+ },
+
+ alphaMin: function(_) {
+ return arguments.length ? (alphaMin = +_, simulation) : alphaMin;
+ },
+
+ alphaDecay: function(_) {
+ return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay;
+ },
+
+ alphaTarget: function(_) {
+ return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget;
+ },
+
+ velocityDecay: function(_) {
+ return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay;
+ },
+
+ force: function(name, _) {
+ return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name);
+ },
+
+ find: function(x, y, radius) {
+ var i = 0,
+ n = nodes.length,
+ dx,
+ dy,
+ d2,
+ node,
+ closest;
+
+ if (radius == null) radius = Infinity;
+ else radius *= radius;
+
+ for (i = 0; i < n; ++i) {
+ node = nodes[i];
+ dx = x - node.x;
+ dy = y - node.y;
+ d2 = dx * dx + dy * dy;
+ if (d2 < radius) closest = node, radius = d2;
+ }
+
+ return closest;
+ },
+
+ on: function(name, _) {
+ return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name);
+ }
+ };
+};
+
+var manyBody = function() {
+ var nodes,
+ node,
+ alpha,
+ strength = constant$6(-30),
+ strengths,
+ distanceMin2 = 1,
+ distanceMax2 = Infinity,
+ theta2 = 0.81;
+
+ function force(_) {
+ var i, n = nodes.length, tree = quadtree(nodes, x$1, y$1).visitAfter(accumulate);
+ for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply);
+ }
+
+ function initialize() {
+ if (!nodes) return;
+ var i, n = nodes.length, node;
+ strengths = new Array(n);
+ for (i = 0; i < n; ++i) node = nodes[i], strengths[node.index] = +strength(node, i, nodes);
+ }
+
+ function accumulate(quad) {
+ var strength = 0, q, c, x$$1, y$$1, i;
+
+ // For internal nodes, accumulate forces from child quadrants.
+ if (quad.length) {
+ for (x$$1 = y$$1 = i = 0; i < 4; ++i) {
+ if ((q = quad[i]) && (c = q.value)) {
+ strength += c, x$$1 += c * q.x, y$$1 += c * q.y;
+ }
+ }
+ quad.x = x$$1 / strength;
+ quad.y = y$$1 / strength;
+ }
+
+ // For leaf nodes, accumulate forces from coincident quadrants.
+ else {
+ q = quad;
+ q.x = q.data.x;
+ q.y = q.data.y;
+ do strength += strengths[q.data.index];
+ while (q = q.next);
+ }
+
+ quad.value = strength;
+ }
+
+ function apply(quad, x1, _, x2) {
+ if (!quad.value) return true;
+
+ var x$$1 = quad.x - node.x,
+ y$$1 = quad.y - node.y,
+ w = x2 - x1,
+ l = x$$1 * x$$1 + y$$1 * y$$1;
+
+ // Apply the Barnes-Hut approximation if possible.
+ // Limit forces for very close nodes; randomize direction if coincident.
+ if (w * w / theta2 < l) {
+ if (l < distanceMax2) {
+ if (x$$1 === 0) x$$1 = jiggle(), l += x$$1 * x$$1;
+ if (y$$1 === 0) y$$1 = jiggle(), l += y$$1 * y$$1;
+ if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
+ node.vx += x$$1 * quad.value * alpha / l;
+ node.vy += y$$1 * quad.value * alpha / l;
+ }
+ return true;
+ }
+
+ // Otherwise, process points directly.
+ else if (quad.length || l >= distanceMax2) return;
+
+ // Limit forces for very close nodes; randomize direction if coincident.
+ if (quad.data !== node || quad.next) {
+ if (x$$1 === 0) x$$1 = jiggle(), l += x$$1 * x$$1;
+ if (y$$1 === 0) y$$1 = jiggle(), l += y$$1 * y$$1;
+ if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
+ }
+
+ do if (quad.data !== node) {
+ w = strengths[quad.data.index] * alpha / l;
+ node.vx += x$$1 * w;
+ node.vy += y$$1 * w;
+ } while (quad = quad.next);
+ }
+
+ force.initialize = function(_) {
+ nodes = _;
+ initialize();
+ };
+
+ force.strength = function(_) {
+ return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength;
+ };
+
+ force.distanceMin = function(_) {
+ return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2);
+ };
+
+ force.distanceMax = function(_) {
+ return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2);
+ };
+
+ force.theta = function(_) {
+ return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2);
+ };
+
+ return force;
+};
+
+var x$2 = function(x) {
+ var strength = constant$6(0.1),
+ nodes,
+ strengths,
+ xz;
+
+ if (typeof x !== "function") x = constant$6(x == null ? 0 : +x);
+
+ function force(alpha) {
+ for (var i = 0, n = nodes.length, node; i < n; ++i) {
+ node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha;
+ }
+ }
+
+ function initialize() {
+ if (!nodes) return;
+ var i, n = nodes.length;
+ strengths = new Array(n);
+ xz = new Array(n);
+ for (i = 0; i < n; ++i) {
+ strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);
+ }
+ }
+
+ force.initialize = function(_) {
+ nodes = _;
+ initialize();
+ };
+
+ force.strength = function(_) {
+ return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength;
+ };
+
+ force.x = function(_) {
+ return arguments.length ? (x = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : x;
+ };
+
+ return force;
+};
+
+var y$2 = function(y) {
+ var strength = constant$6(0.1),
+ nodes,
+ strengths,
+ yz;
+
+ if (typeof y !== "function") y = constant$6(y == null ? 0 : +y);
+
+ function force(alpha) {
+ for (var i = 0, n = nodes.length, node; i < n; ++i) {
+ node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha;
+ }
+ }
+
+ function initialize() {
+ if (!nodes) return;
+ var i, n = nodes.length;
+ strengths = new Array(n);
+ yz = new Array(n);
+ for (i = 0; i < n; ++i) {
+ strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);
+ }
+ }
+
+ force.initialize = function(_) {
+ nodes = _;
+ initialize();
+ };
+
+ force.strength = function(_) {
+ return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength;
+ };
+
+ force.y = function(_) {
+ return arguments.length ? (y = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : y;
+ };
+
+ return force;
+};
+
+// Computes the decimal coefficient and exponent of the specified number x with
+// significant digits p, where x is positive and p is in [1, 21] or undefined.
+// For example, formatDecimal(1.23) returns ["123", 0].
+var formatDecimal = function(x, p) {
+ if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity
+ var i, coefficient = x.slice(0, i);
+
+ // The string returned by toExponential either has the form \d\.\d+e[-+]\d+
+ // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3).
+ return [
+ coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient,
+ +x.slice(i + 1)
+ ];
+};
+
+var exponent$1 = function(x) {
+ return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN;
+};
+
+var formatGroup = function(grouping, thousands) {
+ return function(value, width) {
+ var i = value.length,
+ t = [],
+ j = 0,
+ g = grouping[0],
+ length = 0;
+
+ while (i > 0 && g > 0) {
+ if (length + g + 1 > width) g = Math.max(1, width - length);
+ t.push(value.substring(i -= g, i + g));
+ if ((length += g + 1) > width) break;
+ g = grouping[j = (j + 1) % grouping.length];
+ }
+
+ return t.reverse().join(thousands);
+ };
+};
+
+var formatNumerals = function(numerals) {
+ return function(value) {
+ return value.replace(/[0-9]/g, function(i) {
+ return numerals[+i];
+ });
+ };
+};
+
+var formatDefault = function(x, p) {
+ x = x.toPrecision(p);
+
+ out: for (var n = x.length, i = 1, i0 = -1, i1; i < n; ++i) {
+ switch (x[i]) {
+ case ".": i0 = i1 = i; break;
+ case "0": if (i0 === 0) i0 = i; i1 = i; break;
+ case "e": break out;
+ default: if (i0 > 0) i0 = 0; break;
+ }
+ }
+
+ return i0 > 0 ? x.slice(0, i0) + x.slice(i1 + 1) : x;
+};
+
+var prefixExponent;
+
+var formatPrefixAuto = function(x, p) {
+ var d = formatDecimal(x, p);
+ if (!d) return x + "";
+ var coefficient = d[0],
+ exponent = d[1],
+ i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,
+ n = coefficient.length;
+ return i === n ? coefficient
+ : i > n ? coefficient + new Array(i - n + 1).join("0")
+ : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i)
+ : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y!
+};
+
+var formatRounded = function(x, p) {
+ var d = formatDecimal(x, p);
+ if (!d) return x + "";
+ var coefficient = d[0],
+ exponent = d[1];
+ return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient
+ : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1)
+ : coefficient + new Array(exponent - coefficient.length + 2).join("0");
+};
+
+var formatTypes = {
+ "": formatDefault,
+ "%": function(x, p) { return (x * 100).toFixed(p); },
+ "b": function(x) { return Math.round(x).toString(2); },
+ "c": function(x) { return x + ""; },
+ "d": function(x) { return Math.round(x).toString(10); },
+ "e": function(x, p) { return x.toExponential(p); },
+ "f": function(x, p) { return x.toFixed(p); },
+ "g": function(x, p) { return x.toPrecision(p); },
+ "o": function(x) { return Math.round(x).toString(8); },
+ "p": function(x, p) { return formatRounded(x * 100, p); },
+ "r": formatRounded,
+ "s": formatPrefixAuto,
+ "X": function(x) { return Math.round(x).toString(16).toUpperCase(); },
+ "x": function(x) { return Math.round(x).toString(16); }
+};
+
+// [[fill]align][sign][symbol][0][width][,][.precision][type]
+var re = /^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i;
+
+function formatSpecifier(specifier) {
+ return new FormatSpecifier(specifier);
+}
+
+formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof
+
+function FormatSpecifier(specifier) {
+ if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);
+
+ var match,
+ fill = match[1] || " ",
+ align = match[2] || ">",
+ sign = match[3] || "-",
+ symbol = match[4] || "",
+ zero = !!match[5],
+ width = match[6] && +match[6],
+ comma = !!match[7],
+ precision = match[8] && +match[8].slice(1),
+ type = match[9] || "";
+
+ // The "n" type is an alias for ",g".
+ if (type === "n") comma = true, type = "g";
+
+ // Map invalid types to the default format.
+ else if (!formatTypes[type]) type = "";
+
+ // If zero fill is specified, padding goes after sign and before digits.
+ if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "=";
+
+ this.fill = fill;
+ this.align = align;
+ this.sign = sign;
+ this.symbol = symbol;
+ this.zero = zero;
+ this.width = width;
+ this.comma = comma;
+ this.precision = precision;
+ this.type = type;
+}
+
+FormatSpecifier.prototype.toString = function() {
+ return this.fill
+ + this.align
+ + this.sign
+ + this.symbol
+ + (this.zero ? "0" : "")
+ + (this.width == null ? "" : Math.max(1, this.width | 0))
+ + (this.comma ? "," : "")
+ + (this.precision == null ? "" : "." + Math.max(0, this.precision | 0))
+ + this.type;
+};
+
+var identity$3 = function(x) {
+ return x;
+};
+
+var prefixes = ["y","z","a","f","p","n","\xB5","m","","k","M","G","T","P","E","Z","Y"];
+
+var formatLocale = function(locale) {
+ var group = locale.grouping && locale.thousands ? formatGroup(locale.grouping, locale.thousands) : identity$3,
+ currency = locale.currency,
+ decimal = locale.decimal,
+ numerals = locale.numerals ? formatNumerals(locale.numerals) : identity$3,
+ percent = locale.percent || "%";
+
+ function newFormat(specifier) {
+ specifier = formatSpecifier(specifier);
+
+ var fill = specifier.fill,
+ align = specifier.align,
+ sign = specifier.sign,
+ symbol = specifier.symbol,
+ zero = specifier.zero,
+ width = specifier.width,
+ comma = specifier.comma,
+ precision = specifier.precision,
+ type = specifier.type;
+
+ // Compute the prefix and suffix.
+ // For SI-prefix, the suffix is lazily computed.
+ var prefix = symbol === "$" ? currency[0] : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "",
+ suffix = symbol === "$" ? currency[1] : /[%p]/.test(type) ? percent : "";
+
+ // What format function should we use?
+ // Is this an integer type?
+ // Can this type generate exponential notation?
+ var formatType = formatTypes[type],
+ maybeSuffix = !type || /[defgprs%]/.test(type);
+
+ // Set the default precision if not specified,
+ // or clamp the specified precision to the supported range.
+ // For significant precision, it must be in [1, 21].
+ // For fixed precision, it must be in [0, 20].
+ precision = precision == null ? (type ? 6 : 12)
+ : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision))
+ : Math.max(0, Math.min(20, precision));
+
+ function format(value) {
+ var valuePrefix = prefix,
+ valueSuffix = suffix,
+ i, n, c;
+
+ if (type === "c") {
+ valueSuffix = formatType(value) + valueSuffix;
+ value = "";
+ } else {
+ value = +value;
+
+ // Perform the initial formatting.
+ var valueNegative = value < 0;
+ value = formatType(Math.abs(value), precision);
+
+ // If a negative value rounds to zero during formatting, treat as positive.
+ if (valueNegative && +value === 0) valueNegative = false;
+
+ // Compute the prefix and suffix.
+ valuePrefix = (valueNegative ? (sign === "(" ? sign : "-") : sign === "-" || sign === "(" ? "" : sign) + valuePrefix;
+ valueSuffix = valueSuffix + (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + (valueNegative && sign === "(" ? ")" : "");
+
+ // Break the formatted value into the integer “value” part that can be
+ // grouped, and fractional or exponential “suffix” part that is not.
+ if (maybeSuffix) {
+ i = -1, n = value.length;
+ while (++i < n) {
+ if (c = value.charCodeAt(i), 48 > c || c > 57) {
+ valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;
+ value = value.slice(0, i);
+ break;
+ }
+ }
+ }
+ }
+
+ // If the fill character is not "0", grouping is applied before padding.
+ if (comma && !zero) value = group(value, Infinity);
+
+ // Compute the padding.
+ var length = valuePrefix.length + value.length + valueSuffix.length,
+ padding = length < width ? new Array(width - length + 1).join(fill) : "";
+
+ // If the fill character is "0", grouping is applied after padding.
+ if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = "";
+
+ // Reconstruct the final output based on the desired alignment.
+ switch (align) {
+ case "<": value = valuePrefix + value + valueSuffix + padding; break;
+ case "=": value = valuePrefix + padding + value + valueSuffix; break;
+ case "^": value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); break;
+ default: value = padding + valuePrefix + value + valueSuffix; break;
+ }
+
+ return numerals(value);
+ }
+
+ format.toString = function() {
+ return specifier + "";
+ };
+
+ return format;
+ }
+
+ function formatPrefix(specifier, value) {
+ var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)),
+ e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3,
+ k = Math.pow(10, -e),
+ prefix = prefixes[8 + e / 3];
+ return function(value) {
+ return f(k * value) + prefix;
+ };
+ }
+
+ return {
+ format: newFormat,
+ formatPrefix: formatPrefix
+ };
+};
+
+var locale$1;
+
+
+
+defaultLocale({
+ decimal: ".",
+ thousands: ",",
+ grouping: [3],
+ currency: ["$", ""]
+});
+
+function defaultLocale(definition) {
+ locale$1 = formatLocale(definition);
+ exports.format = locale$1.format;
+ exports.formatPrefix = locale$1.formatPrefix;
+ return locale$1;
+}
+
+var precisionFixed = function(step) {
+ return Math.max(0, -exponent$1(Math.abs(step)));
+};
+
+var precisionPrefix = function(step, value) {
+ return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step)));
+};
+
+var precisionRound = function(step, max) {
+ step = Math.abs(step), max = Math.abs(max) - step;
+ return Math.max(0, exponent$1(max) - exponent$1(step)) + 1;
+};
+
+// Adds floating point numbers with twice the normal precision.
+// Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and
+// Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3)
+// 305–363 (1997).
+// Code adapted from GeographicLib by Charles F. F. Karney,
+// http://geographiclib.sourceforge.net/
+
+var adder = function() {
+ return new Adder;
+};
+
+function Adder() {
+ this.reset();
+}
+
+Adder.prototype = {
+ constructor: Adder,
+ reset: function() {
+ this.s = // rounded value
+ this.t = 0; // exact error
+ },
+ add: function(y) {
+ add$1(temp, y, this.t);
+ add$1(this, temp.s, this.s);
+ if (this.s) this.t += temp.t;
+ else this.s = temp.t;
+ },
+ valueOf: function() {
+ return this.s;
+ }
+};
+
+var temp = new Adder;
+
+function add$1(adder, a, b) {
+ var x = adder.s = a + b,
+ bv = x - a,
+ av = x - bv;
+ adder.t = (a - av) + (b - bv);
+}
+
+var epsilon$2 = 1e-6;
+var epsilon2$1 = 1e-12;
+var pi$3 = Math.PI;
+var halfPi$2 = pi$3 / 2;
+var quarterPi = pi$3 / 4;
+var tau$3 = pi$3 * 2;
+
+var degrees$1 = 180 / pi$3;
+var radians = pi$3 / 180;
+
+var abs = Math.abs;
+var atan = Math.atan;
+var atan2 = Math.atan2;
+var cos$1 = Math.cos;
+var ceil = Math.ceil;
+var exp = Math.exp;
+
+var log = Math.log;
+var pow = Math.pow;
+var sin$1 = Math.sin;
+var sign = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; };
+var sqrt = Math.sqrt;
+var tan = Math.tan;
+
+function acos(x) {
+ return x > 1 ? 0 : x < -1 ? pi$3 : Math.acos(x);
+}
+
+function asin(x) {
+ return x > 1 ? halfPi$2 : x < -1 ? -halfPi$2 : Math.asin(x);
+}
+
+function haversin(x) {
+ return (x = sin$1(x / 2)) * x;
+}
+
+function noop$1() {}
+
+function streamGeometry(geometry, stream) {
+ if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) {
+ streamGeometryType[geometry.type](geometry, stream);
+ }
+}
+
+var streamObjectType = {
+ Feature: function(object, stream) {
+ streamGeometry(object.geometry, stream);
+ },
+ FeatureCollection: function(object, stream) {
+ var features = object.features, i = -1, n = features.length;
+ while (++i < n) streamGeometry(features[i].geometry, stream);
+ }
+};
+
+var streamGeometryType = {
+ Sphere: function(object, stream) {
+ stream.sphere();
+ },
+ Point: function(object, stream) {
+ object = object.coordinates;
+ stream.point(object[0], object[1], object[2]);
+ },
+ MultiPoint: function(object, stream) {
+ var coordinates = object.coordinates, i = -1, n = coordinates.length;
+ while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]);
+ },
+ LineString: function(object, stream) {
+ streamLine(object.coordinates, stream, 0);
+ },
+ MultiLineString: function(object, stream) {
+ var coordinates = object.coordinates, i = -1, n = coordinates.length;
+ while (++i < n) streamLine(coordinates[i], stream, 0);
+ },
+ Polygon: function(object, stream) {
+ streamPolygon(object.coordinates, stream);
+ },
+ MultiPolygon: function(object, stream) {
+ var coordinates = object.coordinates, i = -1, n = coordinates.length;
+ while (++i < n) streamPolygon(coordinates[i], stream);
+ },
+ GeometryCollection: function(object, stream) {
+ var geometries = object.geometries, i = -1, n = geometries.length;
+ while (++i < n) streamGeometry(geometries[i], stream);
+ }
+};
+
+function streamLine(coordinates, stream, closed) {
+ var i = -1, n = coordinates.length - closed, coordinate;
+ stream.lineStart();
+ while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]);
+ stream.lineEnd();
+}
+
+function streamPolygon(coordinates, stream) {
+ var i = -1, n = coordinates.length;
+ stream.polygonStart();
+ while (++i < n) streamLine(coordinates[i], stream, 1);
+ stream.polygonEnd();
+}
+
+var geoStream = function(object, stream) {
+ if (object && streamObjectType.hasOwnProperty(object.type)) {
+ streamObjectType[object.type](object, stream);
+ } else {
+ streamGeometry(object, stream);
+ }
+};
+
+var areaRingSum = adder();
+
+var areaSum = adder();
+var lambda00;
+var phi00;
+var lambda0;
+var cosPhi0;
+var sinPhi0;
+
+var areaStream = {
+ point: noop$1,
+ lineStart: noop$1,
+ lineEnd: noop$1,
+ polygonStart: function() {
+ areaRingSum.reset();
+ areaStream.lineStart = areaRingStart;
+ areaStream.lineEnd = areaRingEnd;
+ },
+ polygonEnd: function() {
+ var areaRing = +areaRingSum;
+ areaSum.add(areaRing < 0 ? tau$3 + areaRing : areaRing);
+ this.lineStart = this.lineEnd = this.point = noop$1;
+ },
+ sphere: function() {
+ areaSum.add(tau$3);
+ }
+};
+
+function areaRingStart() {
+ areaStream.point = areaPointFirst;
+}
+
+function areaRingEnd() {
+ areaPoint(lambda00, phi00);
+}
+
+function areaPointFirst(lambda, phi) {
+ areaStream.point = areaPoint;
+ lambda00 = lambda, phi00 = phi;
+ lambda *= radians, phi *= radians;
+ lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi);
+}
+
+function areaPoint(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ phi = phi / 2 + quarterPi; // half the angular distance from south pole
+
+ // Spherical excess E for a spherical triangle with vertices: south pole,
+ // previous point, current point. Uses a formula derived from Cagnoli’s
+ // theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2).
+ var dLambda = lambda - lambda0,
+ sdLambda = dLambda >= 0 ? 1 : -1,
+ adLambda = sdLambda * dLambda,
+ cosPhi = cos$1(phi),
+ sinPhi = sin$1(phi),
+ k = sinPhi0 * sinPhi,
+ u = cosPhi0 * cosPhi + k * cos$1(adLambda),
+ v = k * sdLambda * sin$1(adLambda);
+ areaRingSum.add(atan2(v, u));
+
+ // Advance the previous points.
+ lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi;
+}
+
+var area = function(object) {
+ areaSum.reset();
+ geoStream(object, areaStream);
+ return areaSum * 2;
+};
+
+function spherical(cartesian) {
+ return [atan2(cartesian[1], cartesian[0]), asin(cartesian[2])];
+}
+
+function cartesian(spherical) {
+ var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi);
+ return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)];
+}
+
+function cartesianDot(a, b) {
+ return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+}
+
+function cartesianCross(a, b) {
+ return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]];
+}
+
+// TODO return a
+function cartesianAddInPlace(a, b) {
+ a[0] += b[0], a[1] += b[1], a[2] += b[2];
+}
+
+function cartesianScale(vector, k) {
+ return [vector[0] * k, vector[1] * k, vector[2] * k];
+}
+
+// TODO return d
+function cartesianNormalizeInPlace(d) {
+ var l = sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
+ d[0] /= l, d[1] /= l, d[2] /= l;
+}
+
+var lambda0$1;
+var phi0;
+var lambda1;
+var phi1;
+var lambda2;
+var lambda00$1;
+var phi00$1;
+var p0;
+var deltaSum = adder();
+var ranges;
+var range;
+
+var boundsStream = {
+ point: boundsPoint,
+ lineStart: boundsLineStart,
+ lineEnd: boundsLineEnd,
+ polygonStart: function() {
+ boundsStream.point = boundsRingPoint;
+ boundsStream.lineStart = boundsRingStart;
+ boundsStream.lineEnd = boundsRingEnd;
+ deltaSum.reset();
+ areaStream.polygonStart();
+ },
+ polygonEnd: function() {
+ areaStream.polygonEnd();
+ boundsStream.point = boundsPoint;
+ boundsStream.lineStart = boundsLineStart;
+ boundsStream.lineEnd = boundsLineEnd;
+ if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90);
+ else if (deltaSum > epsilon$2) phi1 = 90;
+ else if (deltaSum < -epsilon$2) phi0 = -90;
+ range[0] = lambda0$1, range[1] = lambda1;
+ }
+};
+
+function boundsPoint(lambda, phi) {
+ ranges.push(range = [lambda0$1 = lambda, lambda1 = lambda]);
+ if (phi < phi0) phi0 = phi;
+ if (phi > phi1) phi1 = phi;
+}
+
+function linePoint(lambda, phi) {
+ var p = cartesian([lambda * radians, phi * radians]);
+ if (p0) {
+ var normal = cartesianCross(p0, p),
+ equatorial = [normal[1], -normal[0], 0],
+ inflection = cartesianCross(equatorial, normal);
+ cartesianNormalizeInPlace(inflection);
+ inflection = spherical(inflection);
+ var delta = lambda - lambda2,
+ sign$$1 = delta > 0 ? 1 : -1,
+ lambdai = inflection[0] * degrees$1 * sign$$1,
+ phii,
+ antimeridian = abs(delta) > 180;
+ if (antimeridian ^ (sign$$1 * lambda2 < lambdai && lambdai < sign$$1 * lambda)) {
+ phii = inflection[1] * degrees$1;
+ if (phii > phi1) phi1 = phii;
+ } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign$$1 * lambda2 < lambdai && lambdai < sign$$1 * lambda)) {
+ phii = -inflection[1] * degrees$1;
+ if (phii < phi0) phi0 = phii;
+ } else {
+ if (phi < phi0) phi0 = phi;
+ if (phi > phi1) phi1 = phi;
+ }
+ if (antimeridian) {
+ if (lambda < lambda2) {
+ if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda;
+ } else {
+ if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda;
+ }
+ } else {
+ if (lambda1 >= lambda0$1) {
+ if (lambda < lambda0$1) lambda0$1 = lambda;
+ if (lambda > lambda1) lambda1 = lambda;
+ } else {
+ if (lambda > lambda2) {
+ if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda;
+ } else {
+ if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda;
+ }
+ }
+ }
+ } else {
+ ranges.push(range = [lambda0$1 = lambda, lambda1 = lambda]);
+ }
+ if (phi < phi0) phi0 = phi;
+ if (phi > phi1) phi1 = phi;
+ p0 = p, lambda2 = lambda;
+}
+
+function boundsLineStart() {
+ boundsStream.point = linePoint;
+}
+
+function boundsLineEnd() {
+ range[0] = lambda0$1, range[1] = lambda1;
+ boundsStream.point = boundsPoint;
+ p0 = null;
+}
+
+function boundsRingPoint(lambda, phi) {
+ if (p0) {
+ var delta = lambda - lambda2;
+ deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta);
+ } else {
+ lambda00$1 = lambda, phi00$1 = phi;
+ }
+ areaStream.point(lambda, phi);
+ linePoint(lambda, phi);
+}
+
+function boundsRingStart() {
+ areaStream.lineStart();
+}
+
+function boundsRingEnd() {
+ boundsRingPoint(lambda00$1, phi00$1);
+ areaStream.lineEnd();
+ if (abs(deltaSum) > epsilon$2) lambda0$1 = -(lambda1 = 180);
+ range[0] = lambda0$1, range[1] = lambda1;
+ p0 = null;
+}
+
+// Finds the left-right distance between two longitudes.
+// This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want
+// the distance between ±180° to be 360°.
+function angle(lambda0, lambda1) {
+ return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1;
+}
+
+function rangeCompare(a, b) {
+ return a[0] - b[0];
+}
+
+function rangeContains(range, x) {
+ return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
+}
+
+var bounds = function(feature) {
+ var i, n, a, b, merged, deltaMax, delta;
+
+ phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity);
+ ranges = [];
+ geoStream(feature, boundsStream);
+
+ // First, sort ranges by their minimum longitudes.
+ if (n = ranges.length) {
+ ranges.sort(rangeCompare);
+
+ // Then, merge any ranges that overlap.
+ for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) {
+ b = ranges[i];
+ if (rangeContains(a, b[0]) || rangeContains(a, b[1])) {
+ if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
+ if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
+ } else {
+ merged.push(a = b);
+ }
+ }
+
+ // Finally, find the largest gap between the merged ranges.
+ // The final bounding box will be the inverse of this gap.
+ for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) {
+ b = merged[i];
+ if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1];
+ }
+ }
+
+ ranges = range = null;
+
+ return lambda0$1 === Infinity || phi0 === Infinity
+ ? [[NaN, NaN], [NaN, NaN]]
+ : [[lambda0$1, phi0], [lambda1, phi1]];
+};
+
+var W0;
+var W1;
+var X0;
+var Y0;
+var Z0;
+var X1;
+var Y1;
+var Z1;
+var X2;
+var Y2;
+var Z2;
+var lambda00$2;
+var phi00$2;
+var x0;
+var y0;
+var z0; // previous point
+
+var centroidStream = {
+ sphere: noop$1,
+ point: centroidPoint,
+ lineStart: centroidLineStart,
+ lineEnd: centroidLineEnd,
+ polygonStart: function() {
+ centroidStream.lineStart = centroidRingStart;
+ centroidStream.lineEnd = centroidRingEnd;
+ },
+ polygonEnd: function() {
+ centroidStream.lineStart = centroidLineStart;
+ centroidStream.lineEnd = centroidLineEnd;
+ }
+};
+
+// Arithmetic mean of Cartesian vectors.
+function centroidPoint(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ var cosPhi = cos$1(phi);
+ centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi));
+}
+
+function centroidPointCartesian(x, y, z) {
+ ++W0;
+ X0 += (x - X0) / W0;
+ Y0 += (y - Y0) / W0;
+ Z0 += (z - Z0) / W0;
+}
+
+function centroidLineStart() {
+ centroidStream.point = centroidLinePointFirst;
+}
+
+function centroidLinePointFirst(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ var cosPhi = cos$1(phi);
+ x0 = cosPhi * cos$1(lambda);
+ y0 = cosPhi * sin$1(lambda);
+ z0 = sin$1(phi);
+ centroidStream.point = centroidLinePoint;
+ centroidPointCartesian(x0, y0, z0);
+}
+
+function centroidLinePoint(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ var cosPhi = cos$1(phi),
+ x = cosPhi * cos$1(lambda),
+ y = cosPhi * sin$1(lambda),
+ z = sin$1(phi),
+ w = atan2(sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
+ W1 += w;
+ X1 += w * (x0 + (x0 = x));
+ Y1 += w * (y0 + (y0 = y));
+ Z1 += w * (z0 + (z0 = z));
+ centroidPointCartesian(x0, y0, z0);
+}
+
+function centroidLineEnd() {
+ centroidStream.point = centroidPoint;
+}
+
+// See J. E. Brock, The Inertia Tensor for a Spherical Triangle,
+// J. Applied Mechanics 42, 239 (1975).
+function centroidRingStart() {
+ centroidStream.point = centroidRingPointFirst;
+}
+
+function centroidRingEnd() {
+ centroidRingPoint(lambda00$2, phi00$2);
+ centroidStream.point = centroidPoint;
+}
+
+function centroidRingPointFirst(lambda, phi) {
+ lambda00$2 = lambda, phi00$2 = phi;
+ lambda *= radians, phi *= radians;
+ centroidStream.point = centroidRingPoint;
+ var cosPhi = cos$1(phi);
+ x0 = cosPhi * cos$1(lambda);
+ y0 = cosPhi * sin$1(lambda);
+ z0 = sin$1(phi);
+ centroidPointCartesian(x0, y0, z0);
+}
+
+function centroidRingPoint(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ var cosPhi = cos$1(phi),
+ x = cosPhi * cos$1(lambda),
+ y = cosPhi * sin$1(lambda),
+ z = sin$1(phi),
+ cx = y0 * z - z0 * y,
+ cy = z0 * x - x0 * z,
+ cz = x0 * y - y0 * x,
+ m = sqrt(cx * cx + cy * cy + cz * cz),
+ w = asin(m), // line weight = angle
+ v = m && -w / m; // area weight multiplier
+ X2 += v * cx;
+ Y2 += v * cy;
+ Z2 += v * cz;
+ W1 += w;
+ X1 += w * (x0 + (x0 = x));
+ Y1 += w * (y0 + (y0 = y));
+ Z1 += w * (z0 + (z0 = z));
+ centroidPointCartesian(x0, y0, z0);
+}
+
+var centroid = function(object) {
+ W0 = W1 =
+ X0 = Y0 = Z0 =
+ X1 = Y1 = Z1 =
+ X2 = Y2 = Z2 = 0;
+ geoStream(object, centroidStream);
+
+ var x = X2,
+ y = Y2,
+ z = Z2,
+ m = x * x + y * y + z * z;
+
+ // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid.
+ if (m < epsilon2$1) {
+ x = X1, y = Y1, z = Z1;
+ // If the feature has zero length, fall back to arithmetic mean of point vectors.
+ if (W1 < epsilon$2) x = X0, y = Y0, z = Z0;
+ m = x * x + y * y + z * z;
+ // If the feature still has an undefined ccentroid, then return.
+ if (m < epsilon2$1) return [NaN, NaN];
+ }
+
+ return [atan2(y, x) * degrees$1, asin(z / sqrt(m)) * degrees$1];
+};
+
+var constant$7 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var compose = function(a, b) {
+
+ function compose(x, y) {
+ return x = a(x, y), b(x[0], x[1]);
+ }
+
+ if (a.invert && b.invert) compose.invert = function(x, y) {
+ return x = b.invert(x, y), x && a.invert(x[0], x[1]);
+ };
+
+ return compose;
+};
+
+function rotationIdentity(lambda, phi) {
+ return [lambda > pi$3 ? lambda - tau$3 : lambda < -pi$3 ? lambda + tau$3 : lambda, phi];
+}
+
+rotationIdentity.invert = rotationIdentity;
+
+function rotateRadians(deltaLambda, deltaPhi, deltaGamma) {
+ return (deltaLambda %= tau$3) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma))
+ : rotationLambda(deltaLambda))
+ : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma)
+ : rotationIdentity);
+}
+
+function forwardRotationLambda(deltaLambda) {
+ return function(lambda, phi) {
+ return lambda += deltaLambda, [lambda > pi$3 ? lambda - tau$3 : lambda < -pi$3 ? lambda + tau$3 : lambda, phi];
+ };
+}
+
+function rotationLambda(deltaLambda) {
+ var rotation = forwardRotationLambda(deltaLambda);
+ rotation.invert = forwardRotationLambda(-deltaLambda);
+ return rotation;
+}
+
+function rotationPhiGamma(deltaPhi, deltaGamma) {
+ var cosDeltaPhi = cos$1(deltaPhi),
+ sinDeltaPhi = sin$1(deltaPhi),
+ cosDeltaGamma = cos$1(deltaGamma),
+ sinDeltaGamma = sin$1(deltaGamma);
+
+ function rotation(lambda, phi) {
+ var cosPhi = cos$1(phi),
+ x = cos$1(lambda) * cosPhi,
+ y = sin$1(lambda) * cosPhi,
+ z = sin$1(phi),
+ k = z * cosDeltaPhi + x * sinDeltaPhi;
+ return [
+ atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi),
+ asin(k * cosDeltaGamma + y * sinDeltaGamma)
+ ];
+ }
+
+ rotation.invert = function(lambda, phi) {
+ var cosPhi = cos$1(phi),
+ x = cos$1(lambda) * cosPhi,
+ y = sin$1(lambda) * cosPhi,
+ z = sin$1(phi),
+ k = z * cosDeltaGamma - y * sinDeltaGamma;
+ return [
+ atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi),
+ asin(k * cosDeltaPhi - x * sinDeltaPhi)
+ ];
+ };
+
+ return rotation;
+}
+
+var rotation = function(rotate) {
+ rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0);
+
+ function forward(coordinates) {
+ coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians);
+ return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates;
+ }
+
+ forward.invert = function(coordinates) {
+ coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians);
+ return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates;
+ };
+
+ return forward;
+};
+
+// Generates a circle centered at [0°, 0°], with a given radius and precision.
+function circleStream(stream, radius, delta, direction, t0, t1) {
+ if (!delta) return;
+ var cosRadius = cos$1(radius),
+ sinRadius = sin$1(radius),
+ step = direction * delta;
+ if (t0 == null) {
+ t0 = radius + direction * tau$3;
+ t1 = radius - step / 2;
+ } else {
+ t0 = circleRadius(cosRadius, t0);
+ t1 = circleRadius(cosRadius, t1);
+ if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$3;
+ }
+ for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) {
+ point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]);
+ stream.point(point[0], point[1]);
+ }
+}
+
+// Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0].
+function circleRadius(cosRadius, point) {
+ point = cartesian(point), point[0] -= cosRadius;
+ cartesianNormalizeInPlace(point);
+ var radius = acos(-point[1]);
+ return ((-point[2] < 0 ? -radius : radius) + tau$3 - epsilon$2) % tau$3;
+}
+
+var circle = function() {
+ var center = constant$7([0, 0]),
+ radius = constant$7(90),
+ precision = constant$7(6),
+ ring,
+ rotate,
+ stream = {point: point};
+
+ function point(x, y) {
+ ring.push(x = rotate(x, y));
+ x[0] *= degrees$1, x[1] *= degrees$1;
+ }
+
+ function circle() {
+ var c = center.apply(this, arguments),
+ r = radius.apply(this, arguments) * radians,
+ p = precision.apply(this, arguments) * radians;
+ ring = [];
+ rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert;
+ circleStream(stream, r, p, 1);
+ c = {type: "Polygon", coordinates: [ring]};
+ ring = rotate = null;
+ return c;
+ }
+
+ circle.center = function(_) {
+ return arguments.length ? (center = typeof _ === "function" ? _ : constant$7([+_[0], +_[1]]), circle) : center;
+ };
+
+ circle.radius = function(_) {
+ return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), circle) : radius;
+ };
+
+ circle.precision = function(_) {
+ return arguments.length ? (precision = typeof _ === "function" ? _ : constant$7(+_), circle) : precision;
+ };
+
+ return circle;
+};
+
+var clipBuffer = function() {
+ var lines = [],
+ line;
+ return {
+ point: function(x, y) {
+ line.push([x, y]);
+ },
+ lineStart: function() {
+ lines.push(line = []);
+ },
+ lineEnd: noop$1,
+ rejoin: function() {
+ if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
+ },
+ result: function() {
+ var result = lines;
+ lines = [];
+ line = null;
+ return result;
+ }
+ };
+};
+
+var clipLine = function(a, b, x0, y0, x1, y1) {
+ var ax = a[0],
+ ay = a[1],
+ bx = b[0],
+ by = b[1],
+ t0 = 0,
+ t1 = 1,
+ dx = bx - ax,
+ dy = by - ay,
+ r;
+
+ r = x0 - ax;
+ if (!dx && r > 0) return;
+ r /= dx;
+ if (dx < 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ } else if (dx > 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ }
+
+ r = x1 - ax;
+ if (!dx && r < 0) return;
+ r /= dx;
+ if (dx < 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ } else if (dx > 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ }
+
+ r = y0 - ay;
+ if (!dy && r > 0) return;
+ r /= dy;
+ if (dy < 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ } else if (dy > 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ }
+
+ r = y1 - ay;
+ if (!dy && r < 0) return;
+ r /= dy;
+ if (dy < 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ } else if (dy > 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ }
+
+ if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy;
+ if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy;
+ return true;
+};
+
+var pointEqual = function(a, b) {
+ return abs(a[0] - b[0]) < epsilon$2 && abs(a[1] - b[1]) < epsilon$2;
+};
+
+function Intersection(point, points, other, entry) {
+ this.x = point;
+ this.z = points;
+ this.o = other; // another intersection
+ this.e = entry; // is an entry?
+ this.v = false; // visited
+ this.n = this.p = null; // next & previous
+}
+
+// A generalized polygon clipping algorithm: given a polygon that has been cut
+// into its visible line segments, and rejoins the segments by interpolating
+// along the clip edge.
+var clipPolygon = function(segments, compareIntersection, startInside, interpolate, stream) {
+ var subject = [],
+ clip = [],
+ i,
+ n;
+
+ segments.forEach(function(segment) {
+ if ((n = segment.length - 1) <= 0) return;
+ var n, p0 = segment[0], p1 = segment[n], x;
+
+ // If the first and last points of a segment are coincident, then treat as a
+ // closed ring. TODO if all rings are closed, then the winding order of the
+ // exterior ring should be checked.
+ if (pointEqual(p0, p1)) {
+ stream.lineStart();
+ for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]);
+ stream.lineEnd();
+ return;
+ }
+
+ subject.push(x = new Intersection(p0, segment, null, true));
+ clip.push(x.o = new Intersection(p0, null, x, false));
+ subject.push(x = new Intersection(p1, segment, null, false));
+ clip.push(x.o = new Intersection(p1, null, x, true));
+ });
+
+ if (!subject.length) return;
+
+ clip.sort(compareIntersection);
+ link$1(subject);
+ link$1(clip);
+
+ for (i = 0, n = clip.length; i < n; ++i) {
+ clip[i].e = startInside = !startInside;
+ }
+
+ var start = subject[0],
+ points,
+ point;
+
+ while (1) {
+ // Find first unvisited intersection.
+ var current = start,
+ isSubject = true;
+ while (current.v) if ((current = current.n) === start) return;
+ points = current.z;
+ stream.lineStart();
+ do {
+ current.v = current.o.v = true;
+ if (current.e) {
+ if (isSubject) {
+ for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]);
+ } else {
+ interpolate(current.x, current.n.x, 1, stream);
+ }
+ current = current.n;
+ } else {
+ if (isSubject) {
+ points = current.p.z;
+ for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]);
+ } else {
+ interpolate(current.x, current.p.x, -1, stream);
+ }
+ current = current.p;
+ }
+ current = current.o;
+ points = current.z;
+ isSubject = !isSubject;
+ } while (!current.v);
+ stream.lineEnd();
+ }
+};
+
+function link$1(array) {
+ if (!(n = array.length)) return;
+ var n,
+ i = 0,
+ a = array[0],
+ b;
+ while (++i < n) {
+ a.n = b = array[i];
+ b.p = a;
+ a = b;
+ }
+ a.n = b = array[0];
+ b.p = a;
+}
+
+var clipMax = 1e9;
+var clipMin = -clipMax;
+
+// TODO Use d3-polygon’s polygonContains here for the ring check?
+// TODO Eliminate duplicate buffering in clipBuffer and polygon.push?
+
+function clipExtent(x0, y0, x1, y1) {
+
+ function visible(x, y) {
+ return x0 <= x && x <= x1 && y0 <= y && y <= y1;
+ }
+
+ function interpolate(from, to, direction, stream) {
+ var a = 0, a1 = 0;
+ if (from == null
+ || (a = corner(from, direction)) !== (a1 = corner(to, direction))
+ || comparePoint(from, to) < 0 ^ direction > 0) {
+ do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
+ while ((a = (a + direction + 4) % 4) !== a1);
+ } else {
+ stream.point(to[0], to[1]);
+ }
+ }
+
+ function corner(p, direction) {
+ return abs(p[0] - x0) < epsilon$2 ? direction > 0 ? 0 : 3
+ : abs(p[0] - x1) < epsilon$2 ? direction > 0 ? 2 : 1
+ : abs(p[1] - y0) < epsilon$2 ? direction > 0 ? 1 : 0
+ : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon
+ }
+
+ function compareIntersection(a, b) {
+ return comparePoint(a.x, b.x);
+ }
+
+ function comparePoint(a, b) {
+ var ca = corner(a, 1),
+ cb = corner(b, 1);
+ return ca !== cb ? ca - cb
+ : ca === 0 ? b[1] - a[1]
+ : ca === 1 ? a[0] - b[0]
+ : ca === 2 ? a[1] - b[1]
+ : b[0] - a[0];
+ }
+
+ return function(stream) {
+ var activeStream = stream,
+ bufferStream = clipBuffer(),
+ segments,
+ polygon,
+ ring,
+ x__, y__, v__, // first point
+ x_, y_, v_, // previous point
+ first,
+ clean;
+
+ var clipStream = {
+ point: point,
+ lineStart: lineStart,
+ lineEnd: lineEnd,
+ polygonStart: polygonStart,
+ polygonEnd: polygonEnd
+ };
+
+ function point(x, y) {
+ if (visible(x, y)) activeStream.point(x, y);
+ }
+
+ function polygonInside() {
+ var winding = 0;
+
+ for (var i = 0, n = polygon.length; i < n; ++i) {
+ for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) {
+ a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1];
+ if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; }
+ else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; }
+ }
+ }
+
+ return winding;
+ }
+
+ // Buffer geometry within a polygon and then clip it en masse.
+ function polygonStart() {
+ activeStream = bufferStream, segments = [], polygon = [], clean = true;
+ }
+
+ function polygonEnd() {
+ var startInside = polygonInside(),
+ cleanInside = clean && startInside,
+ visible = (segments = merge(segments)).length;
+ if (cleanInside || visible) {
+ stream.polygonStart();
+ if (cleanInside) {
+ stream.lineStart();
+ interpolate(null, null, 1, stream);
+ stream.lineEnd();
+ }
+ if (visible) {
+ clipPolygon(segments, compareIntersection, startInside, interpolate, stream);
+ }
+ stream.polygonEnd();
+ }
+ activeStream = stream, segments = polygon = ring = null;
+ }
+
+ function lineStart() {
+ clipStream.point = linePoint;
+ if (polygon) polygon.push(ring = []);
+ first = true;
+ v_ = false;
+ x_ = y_ = NaN;
+ }
+
+ // TODO rather than special-case polygons, simply handle them separately.
+ // Ideally, coincident intersection points should be jittered to avoid
+ // clipping issues.
+ function lineEnd() {
+ if (segments) {
+ linePoint(x__, y__);
+ if (v__ && v_) bufferStream.rejoin();
+ segments.push(bufferStream.result());
+ }
+ clipStream.point = point;
+ if (v_) activeStream.lineEnd();
+ }
+
+ function linePoint(x, y) {
+ var v = visible(x, y);
+ if (polygon) ring.push([x, y]);
+ if (first) {
+ x__ = x, y__ = y, v__ = v;
+ first = false;
+ if (v) {
+ activeStream.lineStart();
+ activeStream.point(x, y);
+ }
+ } else {
+ if (v && v_) activeStream.point(x, y);
+ else {
+ var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))],
+ b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))];
+ if (clipLine(a, b, x0, y0, x1, y1)) {
+ if (!v_) {
+ activeStream.lineStart();
+ activeStream.point(a[0], a[1]);
+ }
+ activeStream.point(b[0], b[1]);
+ if (!v) activeStream.lineEnd();
+ clean = false;
+ } else if (v) {
+ activeStream.lineStart();
+ activeStream.point(x, y);
+ clean = false;
+ }
+ }
+ }
+ x_ = x, y_ = y, v_ = v;
+ }
+
+ return clipStream;
+ };
+}
+
+var extent$1 = function() {
+ var x0 = 0,
+ y0 = 0,
+ x1 = 960,
+ y1 = 500,
+ cache,
+ cacheStream,
+ clip;
+
+ return clip = {
+ stream: function(stream) {
+ return cache && cacheStream === stream ? cache : cache = clipExtent(x0, y0, x1, y1)(cacheStream = stream);
+ },
+ extent: function(_) {
+ return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]];
+ }
+ };
+};
+
+var sum$1 = adder();
+
+var polygonContains = function(polygon, point) {
+ var lambda = point[0],
+ phi = point[1],
+ normal = [sin$1(lambda), -cos$1(lambda), 0],
+ angle = 0,
+ winding = 0;
+
+ sum$1.reset();
+
+ for (var i = 0, n = polygon.length; i < n; ++i) {
+ if (!(m = (ring = polygon[i]).length)) continue;
+ var ring,
+ m,
+ point0 = ring[m - 1],
+ lambda0 = point0[0],
+ phi0 = point0[1] / 2 + quarterPi,
+ sinPhi0 = sin$1(phi0),
+ cosPhi0 = cos$1(phi0);
+
+ for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) {
+ var point1 = ring[j],
+ lambda1 = point1[0],
+ phi1 = point1[1] / 2 + quarterPi,
+ sinPhi1 = sin$1(phi1),
+ cosPhi1 = cos$1(phi1),
+ delta = lambda1 - lambda0,
+ sign$$1 = delta >= 0 ? 1 : -1,
+ absDelta = sign$$1 * delta,
+ antimeridian = absDelta > pi$3,
+ k = sinPhi0 * sinPhi1;
+
+ sum$1.add(atan2(k * sign$$1 * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta)));
+ angle += antimeridian ? delta + sign$$1 * tau$3 : delta;
+
+ // Are the longitudes either side of the point’s meridian (lambda),
+ // and are the latitudes smaller than the parallel (phi)?
+ if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) {
+ var arc = cartesianCross(cartesian(point0), cartesian(point1));
+ cartesianNormalizeInPlace(arc);
+ var intersection = cartesianCross(normal, arc);
+ cartesianNormalizeInPlace(intersection);
+ var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin(intersection[2]);
+ if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) {
+ winding += antimeridian ^ delta >= 0 ? 1 : -1;
+ }
+ }
+ }
+ }
+
+ // First, determine whether the South pole is inside or outside:
+ //
+ // It is inside if:
+ // * the polygon winds around it in a clockwise direction.
+ // * the polygon does not (cumulatively) wind around it, but has a negative
+ // (counter-clockwise) area.
+ //
+ // Second, count the (signed) number of times a segment crosses a lambda
+ // from the point to the South pole. If it is zero, then the point is the
+ // same side as the South pole.
+
+ return (angle < -epsilon$2 || angle < epsilon$2 && sum$1 < -epsilon$2) ^ (winding & 1);
+};
+
+var lengthSum = adder();
+var lambda0$2;
+var sinPhi0$1;
+var cosPhi0$1;
+
+var lengthStream = {
+ sphere: noop$1,
+ point: noop$1,
+ lineStart: lengthLineStart,
+ lineEnd: noop$1,
+ polygonStart: noop$1,
+ polygonEnd: noop$1
+};
+
+function lengthLineStart() {
+ lengthStream.point = lengthPointFirst;
+ lengthStream.lineEnd = lengthLineEnd;
+}
+
+function lengthLineEnd() {
+ lengthStream.point = lengthStream.lineEnd = noop$1;
+}
+
+function lengthPointFirst(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi);
+ lengthStream.point = lengthPoint;
+}
+
+function lengthPoint(lambda, phi) {
+ lambda *= radians, phi *= radians;
+ var sinPhi = sin$1(phi),
+ cosPhi = cos$1(phi),
+ delta = abs(lambda - lambda0$2),
+ cosDelta = cos$1(delta),
+ sinDelta = sin$1(delta),
+ x = cosPhi * sinDelta,
+ y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta,
+ z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta;
+ lengthSum.add(atan2(sqrt(x * x + y * y), z));
+ lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi;
+}
+
+var length$1 = function(object) {
+ lengthSum.reset();
+ geoStream(object, lengthStream);
+ return +lengthSum;
+};
+
+var coordinates = [null, null];
+var object$1 = {type: "LineString", coordinates: coordinates};
+
+var distance = function(a, b) {
+ coordinates[0] = a;
+ coordinates[1] = b;
+ return length$1(object$1);
+};
+
+var containsObjectType = {
+ Feature: function(object, point) {
+ return containsGeometry(object.geometry, point);
+ },
+ FeatureCollection: function(object, point) {
+ var features = object.features, i = -1, n = features.length;
+ while (++i < n) if (containsGeometry(features[i].geometry, point)) return true;
+ return false;
+ }
+};
+
+var containsGeometryType = {
+ Sphere: function() {
+ return true;
+ },
+ Point: function(object, point) {
+ return containsPoint(object.coordinates, point);
+ },
+ MultiPoint: function(object, point) {
+ var coordinates = object.coordinates, i = -1, n = coordinates.length;
+ while (++i < n) if (containsPoint(coordinates[i], point)) return true;
+ return false;
+ },
+ LineString: function(object, point) {
+ return containsLine(object.coordinates, point);
+ },
+ MultiLineString: function(object, point) {
+ var coordinates = object.coordinates, i = -1, n = coordinates.length;
+ while (++i < n) if (containsLine(coordinates[i], point)) return true;
+ return false;
+ },
+ Polygon: function(object, point) {
+ return containsPolygon(object.coordinates, point);
+ },
+ MultiPolygon: function(object, point) {
+ var coordinates = object.coordinates, i = -1, n = coordinates.length;
+ while (++i < n) if (containsPolygon(coordinates[i], point)) return true;
+ return false;
+ },
+ GeometryCollection: function(object, point) {
+ var geometries = object.geometries, i = -1, n = geometries.length;
+ while (++i < n) if (containsGeometry(geometries[i], point)) return true;
+ return false;
+ }
+};
+
+function containsGeometry(geometry, point) {
+ return geometry && containsGeometryType.hasOwnProperty(geometry.type)
+ ? containsGeometryType[geometry.type](geometry, point)
+ : false;
+}
+
+function containsPoint(coordinates, point) {
+ return distance(coordinates, point) === 0;
+}
+
+function containsLine(coordinates, point) {
+ var ab = distance(coordinates[0], coordinates[1]),
+ ao = distance(coordinates[0], point),
+ ob = distance(point, coordinates[1]);
+ return ao + ob <= ab + epsilon$2;
+}
+
+function containsPolygon(coordinates, point) {
+ return !!polygonContains(coordinates.map(ringRadians), pointRadians(point));
+}
+
+function ringRadians(ring) {
+ return ring = ring.map(pointRadians), ring.pop(), ring;
+}
+
+function pointRadians(point) {
+ return [point[0] * radians, point[1] * radians];
+}
+
+var contains = function(object, point) {
+ return (object && containsObjectType.hasOwnProperty(object.type)
+ ? containsObjectType[object.type]
+ : containsGeometry)(object, point);
+};
+
+function graticuleX(y0, y1, dy) {
+ var y = sequence(y0, y1 - epsilon$2, dy).concat(y1);
+ return function(x) { return y.map(function(y) { return [x, y]; }); };
+}
+
+function graticuleY(x0, x1, dx) {
+ var x = sequence(x0, x1 - epsilon$2, dx).concat(x1);
+ return function(y) { return x.map(function(x) { return [x, y]; }); };
+}
+
+function graticule() {
+ var x1, x0, X1, X0,
+ y1, y0, Y1, Y0,
+ dx = 10, dy = dx, DX = 90, DY = 360,
+ x, y, X, Y,
+ precision = 2.5;
+
+ function graticule() {
+ return {type: "MultiLineString", coordinates: lines()};
+ }
+
+ function lines() {
+ return sequence(ceil(X0 / DX) * DX, X1, DX).map(X)
+ .concat(sequence(ceil(Y0 / DY) * DY, Y1, DY).map(Y))
+ .concat(sequence(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$2; }).map(x))
+ .concat(sequence(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$2; }).map(y));
+ }
+
+ graticule.lines = function() {
+ return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; });
+ };
+
+ graticule.outline = function() {
+ return {
+ type: "Polygon",
+ coordinates: [
+ X(X0).concat(
+ Y(Y1).slice(1),
+ X(X1).reverse().slice(1),
+ Y(Y0).reverse().slice(1))
+ ]
+ };
+ };
+
+ graticule.extent = function(_) {
+ if (!arguments.length) return graticule.extentMinor();
+ return graticule.extentMajor(_).extentMinor(_);
+ };
+
+ graticule.extentMajor = function(_) {
+ if (!arguments.length) return [[X0, Y0], [X1, Y1]];
+ X0 = +_[0][0], X1 = +_[1][0];
+ Y0 = +_[0][1], Y1 = +_[1][1];
+ if (X0 > X1) _ = X0, X0 = X1, X1 = _;
+ if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
+ return graticule.precision(precision);
+ };
+
+ graticule.extentMinor = function(_) {
+ if (!arguments.length) return [[x0, y0], [x1, y1]];
+ x0 = +_[0][0], x1 = +_[1][0];
+ y0 = +_[0][1], y1 = +_[1][1];
+ if (x0 > x1) _ = x0, x0 = x1, x1 = _;
+ if (y0 > y1) _ = y0, y0 = y1, y1 = _;
+ return graticule.precision(precision);
+ };
+
+ graticule.step = function(_) {
+ if (!arguments.length) return graticule.stepMinor();
+ return graticule.stepMajor(_).stepMinor(_);
+ };
+
+ graticule.stepMajor = function(_) {
+ if (!arguments.length) return [DX, DY];
+ DX = +_[0], DY = +_[1];
+ return graticule;
+ };
+
+ graticule.stepMinor = function(_) {
+ if (!arguments.length) return [dx, dy];
+ dx = +_[0], dy = +_[1];
+ return graticule;
+ };
+
+ graticule.precision = function(_) {
+ if (!arguments.length) return precision;
+ precision = +_;
+ x = graticuleX(y0, y1, 90);
+ y = graticuleY(x0, x1, precision);
+ X = graticuleX(Y0, Y1, 90);
+ Y = graticuleY(X0, X1, precision);
+ return graticule;
+ };
+
+ return graticule
+ .extentMajor([[-180, -90 + epsilon$2], [180, 90 - epsilon$2]])
+ .extentMinor([[-180, -80 - epsilon$2], [180, 80 + epsilon$2]]);
+}
+
+function graticule10() {
+ return graticule()();
+}
+
+var interpolate$1 = function(a, b) {
+ var x0 = a[0] * radians,
+ y0 = a[1] * radians,
+ x1 = b[0] * radians,
+ y1 = b[1] * radians,
+ cy0 = cos$1(y0),
+ sy0 = sin$1(y0),
+ cy1 = cos$1(y1),
+ sy1 = sin$1(y1),
+ kx0 = cy0 * cos$1(x0),
+ ky0 = cy0 * sin$1(x0),
+ kx1 = cy1 * cos$1(x1),
+ ky1 = cy1 * sin$1(x1),
+ d = 2 * asin(sqrt(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))),
+ k = sin$1(d);
+
+ var interpolate = d ? function(t) {
+ var B = sin$1(t *= d) / k,
+ A = sin$1(d - t) / k,
+ x = A * kx0 + B * kx1,
+ y = A * ky0 + B * ky1,
+ z = A * sy0 + B * sy1;
+ return [
+ atan2(y, x) * degrees$1,
+ atan2(z, sqrt(x * x + y * y)) * degrees$1
+ ];
+ } : function() {
+ return [x0 * degrees$1, y0 * degrees$1];
+ };
+
+ interpolate.distance = d;
+
+ return interpolate;
+};
+
+var identity$4 = function(x) {
+ return x;
+};
+
+var areaSum$1 = adder();
+var areaRingSum$1 = adder();
+var x00;
+var y00;
+var x0$1;
+var y0$1;
+
+var areaStream$1 = {
+ point: noop$1,
+ lineStart: noop$1,
+ lineEnd: noop$1,
+ polygonStart: function() {
+ areaStream$1.lineStart = areaRingStart$1;
+ areaStream$1.lineEnd = areaRingEnd$1;
+ },
+ polygonEnd: function() {
+ areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$1;
+ areaSum$1.add(abs(areaRingSum$1));
+ areaRingSum$1.reset();
+ },
+ result: function() {
+ var area = areaSum$1 / 2;
+ areaSum$1.reset();
+ return area;
+ }
+};
+
+function areaRingStart$1() {
+ areaStream$1.point = areaPointFirst$1;
+}
+
+function areaPointFirst$1(x, y) {
+ areaStream$1.point = areaPoint$1;
+ x00 = x0$1 = x, y00 = y0$1 = y;
+}
+
+function areaPoint$1(x, y) {
+ areaRingSum$1.add(y0$1 * x - x0$1 * y);
+ x0$1 = x, y0$1 = y;
+}
+
+function areaRingEnd$1() {
+ areaPoint$1(x00, y00);
+}
+
+var x0$2 = Infinity;
+var y0$2 = x0$2;
+var x1 = -x0$2;
+var y1 = x1;
+
+var boundsStream$1 = {
+ point: boundsPoint$1,
+ lineStart: noop$1,
+ lineEnd: noop$1,
+ polygonStart: noop$1,
+ polygonEnd: noop$1,
+ result: function() {
+ var bounds = [[x0$2, y0$2], [x1, y1]];
+ x1 = y1 = -(y0$2 = x0$2 = Infinity);
+ return bounds;
+ }
+};
+
+function boundsPoint$1(x, y) {
+ if (x < x0$2) x0$2 = x;
+ if (x > x1) x1 = x;
+ if (y < y0$2) y0$2 = y;
+ if (y > y1) y1 = y;
+}
+
+// TODO Enforce positive area for exterior, negative area for interior?
+
+var X0$1 = 0;
+var Y0$1 = 0;
+var Z0$1 = 0;
+var X1$1 = 0;
+var Y1$1 = 0;
+var Z1$1 = 0;
+var X2$1 = 0;
+var Y2$1 = 0;
+var Z2$1 = 0;
+var x00$1;
+var y00$1;
+var x0$3;
+var y0$3;
+
+var centroidStream$1 = {
+ point: centroidPoint$1,
+ lineStart: centroidLineStart$1,
+ lineEnd: centroidLineEnd$1,
+ polygonStart: function() {
+ centroidStream$1.lineStart = centroidRingStart$1;
+ centroidStream$1.lineEnd = centroidRingEnd$1;
+ },
+ polygonEnd: function() {
+ centroidStream$1.point = centroidPoint$1;
+ centroidStream$1.lineStart = centroidLineStart$1;
+ centroidStream$1.lineEnd = centroidLineEnd$1;
+ },
+ result: function() {
+ var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1]
+ : Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1]
+ : Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1]
+ : [NaN, NaN];
+ X0$1 = Y0$1 = Z0$1 =
+ X1$1 = Y1$1 = Z1$1 =
+ X2$1 = Y2$1 = Z2$1 = 0;
+ return centroid;
+ }
+};
+
+function centroidPoint$1(x, y) {
+ X0$1 += x;
+ Y0$1 += y;
+ ++Z0$1;
+}
+
+function centroidLineStart$1() {
+ centroidStream$1.point = centroidPointFirstLine;
+}
+
+function centroidPointFirstLine(x, y) {
+ centroidStream$1.point = centroidPointLine;
+ centroidPoint$1(x0$3 = x, y0$3 = y);
+}
+
+function centroidPointLine(x, y) {
+ var dx = x - x0$3, dy = y - y0$3, z = sqrt(dx * dx + dy * dy);
+ X1$1 += z * (x0$3 + x) / 2;
+ Y1$1 += z * (y0$3 + y) / 2;
+ Z1$1 += z;
+ centroidPoint$1(x0$3 = x, y0$3 = y);
+}
+
+function centroidLineEnd$1() {
+ centroidStream$1.point = centroidPoint$1;
+}
+
+function centroidRingStart$1() {
+ centroidStream$1.point = centroidPointFirstRing;
+}
+
+function centroidRingEnd$1() {
+ centroidPointRing(x00$1, y00$1);
+}
+
+function centroidPointFirstRing(x, y) {
+ centroidStream$1.point = centroidPointRing;
+ centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y);
+}
+
+function centroidPointRing(x, y) {
+ var dx = x - x0$3,
+ dy = y - y0$3,
+ z = sqrt(dx * dx + dy * dy);
+
+ X1$1 += z * (x0$3 + x) / 2;
+ Y1$1 += z * (y0$3 + y) / 2;
+ Z1$1 += z;
+
+ z = y0$3 * x - x0$3 * y;
+ X2$1 += z * (x0$3 + x);
+ Y2$1 += z * (y0$3 + y);
+ Z2$1 += z * 3;
+ centroidPoint$1(x0$3 = x, y0$3 = y);
+}
+
+function PathContext(context) {
+ this._context = context;
+}
+
+PathContext.prototype = {
+ _radius: 4.5,
+ pointRadius: function(_) {
+ return this._radius = _, this;
+ },
+ polygonStart: function() {
+ this._line = 0;
+ },
+ polygonEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._line === 0) this._context.closePath();
+ this._point = NaN;
+ },
+ point: function(x, y) {
+ switch (this._point) {
+ case 0: {
+ this._context.moveTo(x, y);
+ this._point = 1;
+ break;
+ }
+ case 1: {
+ this._context.lineTo(x, y);
+ break;
+ }
+ default: {
+ this._context.moveTo(x + this._radius, y);
+ this._context.arc(x, y, this._radius, 0, tau$3);
+ break;
+ }
+ }
+ },
+ result: noop$1
+};
+
+var lengthSum$1 = adder();
+var lengthRing;
+var x00$2;
+var y00$2;
+var x0$4;
+var y0$4;
+
+var lengthStream$1 = {
+ point: noop$1,
+ lineStart: function() {
+ lengthStream$1.point = lengthPointFirst$1;
+ },
+ lineEnd: function() {
+ if (lengthRing) lengthPoint$1(x00$2, y00$2);
+ lengthStream$1.point = noop$1;
+ },
+ polygonStart: function() {
+ lengthRing = true;
+ },
+ polygonEnd: function() {
+ lengthRing = null;
+ },
+ result: function() {
+ var length = +lengthSum$1;
+ lengthSum$1.reset();
+ return length;
+ }
+};
+
+function lengthPointFirst$1(x, y) {
+ lengthStream$1.point = lengthPoint$1;
+ x00$2 = x0$4 = x, y00$2 = y0$4 = y;
+}
+
+function lengthPoint$1(x, y) {
+ x0$4 -= x, y0$4 -= y;
+ lengthSum$1.add(sqrt(x0$4 * x0$4 + y0$4 * y0$4));
+ x0$4 = x, y0$4 = y;
+}
+
+function PathString() {
+ this._string = [];
+}
+
+PathString.prototype = {
+ _circle: circle$1(4.5),
+ pointRadius: function(_) {
+ return this._circle = circle$1(_), this;
+ },
+ polygonStart: function() {
+ this._line = 0;
+ },
+ polygonEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._line === 0) this._string.push("Z");
+ this._point = NaN;
+ },
+ point: function(x, y) {
+ switch (this._point) {
+ case 0: {
+ this._string.push("M", x, ",", y);
+ this._point = 1;
+ break;
+ }
+ case 1: {
+ this._string.push("L", x, ",", y);
+ break;
+ }
+ default: {
+ this._string.push("M", x, ",", y, this._circle);
+ break;
+ }
+ }
+ },
+ result: function() {
+ if (this._string.length) {
+ var result = this._string.join("");
+ this._string = [];
+ return result;
+ }
+ }
+};
+
+function circle$1(radius) {
+ return "m0," + radius
+ + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius
+ + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius
+ + "z";
+}
+
+var index$1 = function(projection, context) {
+ var pointRadius = 4.5,
+ projectionStream,
+ contextStream;
+
+ function path(object) {
+ if (object) {
+ if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
+ geoStream(object, projectionStream(contextStream));
+ }
+ return contextStream.result();
+ }
+
+ path.area = function(object) {
+ geoStream(object, projectionStream(areaStream$1));
+ return areaStream$1.result();
+ };
+
+ path.measure = function(object) {
+ geoStream(object, projectionStream(lengthStream$1));
+ return lengthStream$1.result();
+ };
+
+ path.bounds = function(object) {
+ geoStream(object, projectionStream(boundsStream$1));
+ return boundsStream$1.result();
+ };
+
+ path.centroid = function(object) {
+ geoStream(object, projectionStream(centroidStream$1));
+ return centroidStream$1.result();
+ };
+
+ path.projection = function(_) {
+ return arguments.length ? (projectionStream = _ == null ? (projection = null, identity$4) : (projection = _).stream, path) : projection;
+ };
+
+ path.context = function(_) {
+ if (!arguments.length) return context;
+ contextStream = _ == null ? (context = null, new PathString) : new PathContext(context = _);
+ if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
+ return path;
+ };
+
+ path.pointRadius = function(_) {
+ if (!arguments.length) return pointRadius;
+ pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
+ return path;
+ };
+
+ return path.projection(projection).context(context);
+};
+
+var clip = function(pointVisible, clipLine, interpolate, start) {
+ return function(rotate, sink) {
+ var line = clipLine(sink),
+ rotatedStart = rotate.invert(start[0], start[1]),
+ ringBuffer = clipBuffer(),
+ ringSink = clipLine(ringBuffer),
+ polygonStarted = false,
+ polygon,
+ segments,
+ ring;
+
+ var clip = {
+ point: point,
+ lineStart: lineStart,
+ lineEnd: lineEnd,
+ polygonStart: function() {
+ clip.point = pointRing;
+ clip.lineStart = ringStart;
+ clip.lineEnd = ringEnd;
+ segments = [];
+ polygon = [];
+ },
+ polygonEnd: function() {
+ clip.point = point;
+ clip.lineStart = lineStart;
+ clip.lineEnd = lineEnd;
+ segments = merge(segments);
+ var startInside = polygonContains(polygon, rotatedStart);
+ if (segments.length) {
+ if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
+ clipPolygon(segments, compareIntersection, startInside, interpolate, sink);
+ } else if (startInside) {
+ if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
+ sink.lineStart();
+ interpolate(null, null, 1, sink);
+ sink.lineEnd();
+ }
+ if (polygonStarted) sink.polygonEnd(), polygonStarted = false;
+ segments = polygon = null;
+ },
+ sphere: function() {
+ sink.polygonStart();
+ sink.lineStart();
+ interpolate(null, null, 1, sink);
+ sink.lineEnd();
+ sink.polygonEnd();
+ }
+ };
+
+ function point(lambda, phi) {
+ var point = rotate(lambda, phi);
+ if (pointVisible(lambda = point[0], phi = point[1])) sink.point(lambda, phi);
+ }
+
+ function pointLine(lambda, phi) {
+ var point = rotate(lambda, phi);
+ line.point(point[0], point[1]);
+ }
+
+ function lineStart() {
+ clip.point = pointLine;
+ line.lineStart();
+ }
+
+ function lineEnd() {
+ clip.point = point;
+ line.lineEnd();
+ }
+
+ function pointRing(lambda, phi) {
+ ring.push([lambda, phi]);
+ var point = rotate(lambda, phi);
+ ringSink.point(point[0], point[1]);
+ }
+
+ function ringStart() {
+ ringSink.lineStart();
+ ring = [];
+ }
+
+ function ringEnd() {
+ pointRing(ring[0][0], ring[0][1]);
+ ringSink.lineEnd();
+
+ var clean = ringSink.clean(),
+ ringSegments = ringBuffer.result(),
+ i, n = ringSegments.length, m,
+ segment,
+ point;
+
+ ring.pop();
+ polygon.push(ring);
+ ring = null;
+
+ if (!n) return;
+
+ // No intersections.
+ if (clean & 1) {
+ segment = ringSegments[0];
+ if ((m = segment.length - 1) > 0) {
+ if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
+ sink.lineStart();
+ for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]);
+ sink.lineEnd();
+ }
+ return;
+ }
+
+ // Rejoin connected segments.
+ // TODO reuse ringBuffer.rejoin()?
+ if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
+
+ segments.push(ringSegments.filter(validSegment));
+ }
+
+ return clip;
+ };
+};
+
+function validSegment(segment) {
+ return segment.length > 1;
+}
+
+// Intersections are sorted along the clip edge. For both antimeridian cutting
+// and circle clipping, the same comparison is used.
+function compareIntersection(a, b) {
+ return ((a = a.x)[0] < 0 ? a[1] - halfPi$2 - epsilon$2 : halfPi$2 - a[1])
+ - ((b = b.x)[0] < 0 ? b[1] - halfPi$2 - epsilon$2 : halfPi$2 - b[1]);
+}
+
+var clipAntimeridian = clip(
+ function() { return true; },
+ clipAntimeridianLine,
+ clipAntimeridianInterpolate,
+ [-pi$3, -halfPi$2]
+);
+
+// Takes a line and cuts into visible segments. Return values: 0 - there were
+// intersections or the line was empty; 1 - no intersections; 2 - there were
+// intersections, and the first and last segments should be rejoined.
+function clipAntimeridianLine(stream) {
+ var lambda0 = NaN,
+ phi0 = NaN,
+ sign0 = NaN,
+ clean; // no intersections
+
+ return {
+ lineStart: function() {
+ stream.lineStart();
+ clean = 1;
+ },
+ point: function(lambda1, phi1) {
+ var sign1 = lambda1 > 0 ? pi$3 : -pi$3,
+ delta = abs(lambda1 - lambda0);
+ if (abs(delta - pi$3) < epsilon$2) { // line crosses a pole
+ stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$2 : -halfPi$2);
+ stream.point(sign0, phi0);
+ stream.lineEnd();
+ stream.lineStart();
+ stream.point(sign1, phi0);
+ stream.point(lambda1, phi0);
+ clean = 0;
+ } else if (sign0 !== sign1 && delta >= pi$3) { // line crosses antimeridian
+ if (abs(lambda0 - sign0) < epsilon$2) lambda0 -= sign0 * epsilon$2; // handle degeneracies
+ if (abs(lambda1 - sign1) < epsilon$2) lambda1 -= sign1 * epsilon$2;
+ phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1);
+ stream.point(sign0, phi0);
+ stream.lineEnd();
+ stream.lineStart();
+ stream.point(sign1, phi0);
+ clean = 0;
+ }
+ stream.point(lambda0 = lambda1, phi0 = phi1);
+ sign0 = sign1;
+ },
+ lineEnd: function() {
+ stream.lineEnd();
+ lambda0 = phi0 = NaN;
+ },
+ clean: function() {
+ return 2 - clean; // if intersections, rejoin first and last segments
+ }
+ };
+}
+
+function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) {
+ var cosPhi0,
+ cosPhi1,
+ sinLambda0Lambda1 = sin$1(lambda0 - lambda1);
+ return abs(sinLambda0Lambda1) > epsilon$2
+ ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1)
+ - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0))
+ / (cosPhi0 * cosPhi1 * sinLambda0Lambda1))
+ : (phi0 + phi1) / 2;
+}
+
+function clipAntimeridianInterpolate(from, to, direction, stream) {
+ var phi;
+ if (from == null) {
+ phi = direction * halfPi$2;
+ stream.point(-pi$3, phi);
+ stream.point(0, phi);
+ stream.point(pi$3, phi);
+ stream.point(pi$3, 0);
+ stream.point(pi$3, -phi);
+ stream.point(0, -phi);
+ stream.point(-pi$3, -phi);
+ stream.point(-pi$3, 0);
+ stream.point(-pi$3, phi);
+ } else if (abs(from[0] - to[0]) > epsilon$2) {
+ var lambda = from[0] < to[0] ? pi$3 : -pi$3;
+ phi = direction * lambda / 2;
+ stream.point(-lambda, phi);
+ stream.point(0, phi);
+ stream.point(lambda, phi);
+ } else {
+ stream.point(to[0], to[1]);
+ }
+}
+
+var clipCircle = function(radius, delta) {
+ var cr = cos$1(radius),
+ smallRadius = cr > 0,
+ notHemisphere = abs(cr) > epsilon$2; // TODO optimise for this common case
+
+ function interpolate(from, to, direction, stream) {
+ circleStream(stream, radius, delta, direction, from, to);
+ }
+
+ function visible(lambda, phi) {
+ return cos$1(lambda) * cos$1(phi) > cr;
+ }
+
+ // Takes a line and cuts into visible segments. Return values used for polygon
+ // clipping: 0 - there were intersections or the line was empty; 1 - no
+ // intersections 2 - there were intersections, and the first and last segments
+ // should be rejoined.
+ function clipLine(stream) {
+ var point0, // previous point
+ c0, // code for previous point
+ v0, // visibility of previous point
+ v00, // visibility of first point
+ clean; // no intersections
+ return {
+ lineStart: function() {
+ v00 = v0 = false;
+ clean = 1;
+ },
+ point: function(lambda, phi) {
+ var point1 = [lambda, phi],
+ point2,
+ v = visible(lambda, phi),
+ c = smallRadius
+ ? v ? 0 : code(lambda, phi)
+ : v ? code(lambda + (lambda < 0 ? pi$3 : -pi$3), phi) : 0;
+ if (!point0 && (v00 = v0 = v)) stream.lineStart();
+ // Handle degeneracies.
+ // TODO ignore if not clipping polygons.
+ if (v !== v0) {
+ point2 = intersect(point0, point1);
+ if (pointEqual(point0, point2) || pointEqual(point1, point2)) {
+ point1[0] += epsilon$2;
+ point1[1] += epsilon$2;
+ v = visible(point1[0], point1[1]);
+ }
+ }
+ if (v !== v0) {
+ clean = 0;
+ if (v) {
+ // outside going in
+ stream.lineStart();
+ point2 = intersect(point1, point0);
+ stream.point(point2[0], point2[1]);
+ } else {
+ // inside going out
+ point2 = intersect(point0, point1);
+ stream.point(point2[0], point2[1]);
+ stream.lineEnd();
+ }
+ point0 = point2;
+ } else if (notHemisphere && point0 && smallRadius ^ v) {
+ var t;
+ // If the codes for two points are different, or are both zero,
+ // and there this segment intersects with the small circle.
+ if (!(c & c0) && (t = intersect(point1, point0, true))) {
+ clean = 0;
+ if (smallRadius) {
+ stream.lineStart();
+ stream.point(t[0][0], t[0][1]);
+ stream.point(t[1][0], t[1][1]);
+ stream.lineEnd();
+ } else {
+ stream.point(t[1][0], t[1][1]);
+ stream.lineEnd();
+ stream.lineStart();
+ stream.point(t[0][0], t[0][1]);
+ }
+ }
+ }
+ if (v && (!point0 || !pointEqual(point0, point1))) {
+ stream.point(point1[0], point1[1]);
+ }
+ point0 = point1, v0 = v, c0 = c;
+ },
+ lineEnd: function() {
+ if (v0) stream.lineEnd();
+ point0 = null;
+ },
+ // Rejoin first and last segments if there were intersections and the first
+ // and last points were visible.
+ clean: function() {
+ return clean | ((v00 && v0) << 1);
+ }
+ };
+ }
+
+ // Intersects the great circle between a and b with the clip circle.
+ function intersect(a, b, two) {
+ var pa = cartesian(a),
+ pb = cartesian(b);
+
+ // We have two planes, n1.p = d1 and n2.p = d2.
+ // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2).
+ var n1 = [1, 0, 0], // normal
+ n2 = cartesianCross(pa, pb),
+ n2n2 = cartesianDot(n2, n2),
+ n1n2 = n2[0], // cartesianDot(n1, n2),
+ determinant = n2n2 - n1n2 * n1n2;
+
+ // Two polar points.
+ if (!determinant) return !two && a;
+
+ var c1 = cr * n2n2 / determinant,
+ c2 = -cr * n1n2 / determinant,
+ n1xn2 = cartesianCross(n1, n2),
+ A = cartesianScale(n1, c1),
+ B = cartesianScale(n2, c2);
+ cartesianAddInPlace(A, B);
+
+ // Solve |p(t)|^2 = 1.
+ var u = n1xn2,
+ w = cartesianDot(A, u),
+ uu = cartesianDot(u, u),
+ t2 = w * w - uu * (cartesianDot(A, A) - 1);
+
+ if (t2 < 0) return;
+
+ var t = sqrt(t2),
+ q = cartesianScale(u, (-w - t) / uu);
+ cartesianAddInPlace(q, A);
+ q = spherical(q);
+
+ if (!two) return q;
+
+ // Two intersection points.
+ var lambda0 = a[0],
+ lambda1 = b[0],
+ phi0 = a[1],
+ phi1 = b[1],
+ z;
+
+ if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z;
+
+ var delta = lambda1 - lambda0,
+ polar = abs(delta - pi$3) < epsilon$2,
+ meridian = polar || delta < epsilon$2;
+
+ if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z;
+
+ // Check that the first point is between a and b.
+ if (meridian
+ ? polar
+ ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$2 ? phi0 : phi1)
+ : phi0 <= q[1] && q[1] <= phi1
+ : delta > pi$3 ^ (lambda0 <= q[0] && q[0] <= lambda1)) {
+ var q1 = cartesianScale(u, (-w + t) / uu);
+ cartesianAddInPlace(q1, A);
+ return [q, spherical(q1)];
+ }
+ }
+
+ // Generates a 4-bit vector representing the location of a point relative to
+ // the small circle's bounding box.
+ function code(lambda, phi) {
+ var r = smallRadius ? radius : pi$3 - radius,
+ code = 0;
+ if (lambda < -r) code |= 1; // left
+ else if (lambda > r) code |= 2; // right
+ if (phi < -r) code |= 4; // below
+ else if (phi > r) code |= 8; // above
+ return code;
+ }
+
+ return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$3, radius - pi$3]);
+};
+
+var transform = function(methods) {
+ return {
+ stream: transformer(methods)
+ };
+};
+
+function transformer(methods) {
+ return function(stream) {
+ var s = new TransformStream;
+ for (var key in methods) s[key] = methods[key];
+ s.stream = stream;
+ return s;
+ };
+}
+
+function TransformStream() {}
+
+TransformStream.prototype = {
+ constructor: TransformStream,
+ point: function(x, y) { this.stream.point(x, y); },
+ sphere: function() { this.stream.sphere(); },
+ lineStart: function() { this.stream.lineStart(); },
+ lineEnd: function() { this.stream.lineEnd(); },
+ polygonStart: function() { this.stream.polygonStart(); },
+ polygonEnd: function() { this.stream.polygonEnd(); }
+};
+
+function fitExtent(projection, extent, object) {
+ var w = extent[1][0] - extent[0][0],
+ h = extent[1][1] - extent[0][1],
+ clip = projection.clipExtent && projection.clipExtent();
+
+ projection
+ .scale(150)
+ .translate([0, 0]);
+
+ if (clip != null) projection.clipExtent(null);
+
+ geoStream(object, projection.stream(boundsStream$1));
+
+ var b = boundsStream$1.result(),
+ k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])),
+ x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2,
+ y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2;
+
+ if (clip != null) projection.clipExtent(clip);
+
+ return projection
+ .scale(k * 150)
+ .translate([x, y]);
+}
+
+function fitSize(projection, size, object) {
+ return fitExtent(projection, [[0, 0], size], object);
+}
+
+var maxDepth = 16;
+var cosMinDistance = cos$1(30 * radians); // cos(minimum angular distance)
+
+var resample = function(project, delta2) {
+ return +delta2 ? resample$1(project, delta2) : resampleNone(project);
+};
+
+function resampleNone(project) {
+ return transformer({
+ point: function(x, y) {
+ x = project(x, y);
+ this.stream.point(x[0], x[1]);
+ }
+ });
+}
+
+function resample$1(project, delta2) {
+
+ function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) {
+ var dx = x1 - x0,
+ dy = y1 - y0,
+ d2 = dx * dx + dy * dy;
+ if (d2 > 4 * delta2 && depth--) {
+ var a = a0 + a1,
+ b = b0 + b1,
+ c = c0 + c1,
+ m = sqrt(a * a + b * b + c * c),
+ phi2 = asin(c /= m),
+ lambda2 = abs(abs(c) - 1) < epsilon$2 || abs(lambda0 - lambda1) < epsilon$2 ? (lambda0 + lambda1) / 2 : atan2(b, a),
+ p = project(lambda2, phi2),
+ x2 = p[0],
+ y2 = p[1],
+ dx2 = x2 - x0,
+ dy2 = y2 - y0,
+ dz = dy * dx2 - dx * dy2;
+ if (dz * dz / d2 > delta2 // perpendicular projected distance
+ || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end
+ || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance
+ resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream);
+ stream.point(x2, y2);
+ resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream);
+ }
+ }
+ }
+ return function(stream) {
+ var lambda00, x00, y00, a00, b00, c00, // first point
+ lambda0, x0, y0, a0, b0, c0; // previous point
+
+ var resampleStream = {
+ point: point,
+ lineStart: lineStart,
+ lineEnd: lineEnd,
+ polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; },
+ polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; }
+ };
+
+ function point(x, y) {
+ x = project(x, y);
+ stream.point(x[0], x[1]);
+ }
+
+ function lineStart() {
+ x0 = NaN;
+ resampleStream.point = linePoint;
+ stream.lineStart();
+ }
+
+ function linePoint(lambda, phi) {
+ var c = cartesian([lambda, phi]), p = project(lambda, phi);
+ resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
+ stream.point(x0, y0);
+ }
+
+ function lineEnd() {
+ resampleStream.point = point;
+ stream.lineEnd();
+ }
+
+ function ringStart() {
+ lineStart();
+ resampleStream.point = ringPoint;
+ resampleStream.lineEnd = ringEnd;
+ }
+
+ function ringPoint(lambda, phi) {
+ linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
+ resampleStream.point = linePoint;
+ }
+
+ function ringEnd() {
+ resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream);
+ resampleStream.lineEnd = lineEnd;
+ lineEnd();
+ }
+
+ return resampleStream;
+ };
+}
+
+var transformRadians = transformer({
+ point: function(x, y) {
+ this.stream.point(x * radians, y * radians);
+ }
+});
+
+function projection(project) {
+ return projectionMutator(function() { return project; })();
+}
+
+function projectionMutator(projectAt) {
+ var project,
+ k = 150, // scale
+ x = 480, y = 250, // translate
+ dx, dy, lambda = 0, phi = 0, // center
+ deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, projectRotate, // rotate
+ theta = null, preclip = clipAntimeridian, // clip angle
+ x0 = null, y0, x1, y1, postclip = identity$4, // clip extent
+ delta2 = 0.5, projectResample = resample(projectTransform, delta2), // precision
+ cache,
+ cacheStream;
+
+ function projection(point) {
+ point = projectRotate(point[0] * radians, point[1] * radians);
+ return [point[0] * k + dx, dy - point[1] * k];
+ }
+
+ function invert(point) {
+ point = projectRotate.invert((point[0] - dx) / k, (dy - point[1]) / k);
+ return point && [point[0] * degrees$1, point[1] * degrees$1];
+ }
+
+ function projectTransform(x, y) {
+ return x = project(x, y), [x[0] * k + dx, dy - x[1] * k];
+ }
+
+ projection.stream = function(stream) {
+ return cache && cacheStream === stream ? cache : cache = transformRadians(preclip(rotate, projectResample(postclip(cacheStream = stream))));
+ };
+
+ projection.clipAngle = function(_) {
+ return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians, 6 * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1;
+ };
+
+ projection.clipExtent = function(_) {
+ return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$4) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];
+ };
+
+ projection.scale = function(_) {
+ return arguments.length ? (k = +_, recenter()) : k;
+ };
+
+ projection.translate = function(_) {
+ return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y];
+ };
+
+ projection.center = function(_) {
+ return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1];
+ };
+
+ projection.rotate = function(_) {
+ return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1];
+ };
+
+ projection.precision = function(_) {
+ return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt(delta2);
+ };
+
+ projection.fitExtent = function(extent, object) {
+ return fitExtent(projection, extent, object);
+ };
+
+ projection.fitSize = function(size, object) {
+ return fitSize(projection, size, object);
+ };
+
+ function recenter() {
+ projectRotate = compose(rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma), project);
+ var center = project(lambda, phi);
+ dx = x - center[0] * k;
+ dy = y + center[1] * k;
+ return reset();
+ }
+
+ function reset() {
+ cache = cacheStream = null;
+ return projection;
+ }
+
+ return function() {
+ project = projectAt.apply(this, arguments);
+ projection.invert = project.invert && invert;
+ return recenter();
+ };
+}
+
+function conicProjection(projectAt) {
+ var phi0 = 0,
+ phi1 = pi$3 / 3,
+ m = projectionMutator(projectAt),
+ p = m(phi0, phi1);
+
+ p.parallels = function(_) {
+ return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1];
+ };
+
+ return p;
+}
+
+function cylindricalEqualAreaRaw(phi0) {
+ var cosPhi0 = cos$1(phi0);
+
+ function forward(lambda, phi) {
+ return [lambda * cosPhi0, sin$1(phi) / cosPhi0];
+ }
+
+ forward.invert = function(x, y) {
+ return [x / cosPhi0, asin(y * cosPhi0)];
+ };
+
+ return forward;
+}
+
+function conicEqualAreaRaw(y0, y1) {
+ var sy0 = sin$1(y0), n = (sy0 + sin$1(y1)) / 2;
+
+ // Are the parallels symmetrical around the Equator?
+ if (abs(n) < epsilon$2) return cylindricalEqualAreaRaw(y0);
+
+ var c = 1 + sy0 * (2 * n - sy0), r0 = sqrt(c) / n;
+
+ function project(x, y) {
+ var r = sqrt(c - 2 * n * sin$1(y)) / n;
+ return [r * sin$1(x *= n), r0 - r * cos$1(x)];
+ }
+
+ project.invert = function(x, y) {
+ var r0y = r0 - y;
+ return [atan2(x, abs(r0y)) / n * sign(r0y), asin((c - (x * x + r0y * r0y) * n * n) / (2 * n))];
+ };
+
+ return project;
+}
+
+var conicEqualArea = function() {
+ return conicProjection(conicEqualAreaRaw)
+ .scale(155.424)
+ .center([0, 33.6442]);
+};
+
+var albers = function() {
+ return conicEqualArea()
+ .parallels([29.5, 45.5])
+ .scale(1070)
+ .translate([480, 250])
+ .rotate([96, 0])
+ .center([-0.6, 38.7]);
+};
+
+// The projections must have mutually exclusive clip regions on the sphere,
+// as this will avoid emitting interleaving lines and polygons.
+function multiplex(streams) {
+ var n = streams.length;
+ return {
+ point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); },
+ sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); },
+ lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); },
+ lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); },
+ polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); },
+ polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); }
+ };
+}
+
+// A composite projection for the United States, configured by default for
+// 960×500. The projection also works quite well at 960×600 if you change the
+// scale to 1285 and adjust the translate accordingly. The set of standard
+// parallels for each region comes from USGS, which is published here:
+// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers
+var albersUsa = function() {
+ var cache,
+ cacheStream,
+ lower48 = albers(), lower48Point,
+ alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338
+ hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007
+ point, pointStream = {point: function(x, y) { point = [x, y]; }};
+
+ function albersUsa(coordinates) {
+ var x = coordinates[0], y = coordinates[1];
+ return point = null,
+ (lower48Point.point(x, y), point)
+ || (alaskaPoint.point(x, y), point)
+ || (hawaiiPoint.point(x, y), point);
+ }
+
+ albersUsa.invert = function(coordinates) {
+ var k = lower48.scale(),
+ t = lower48.translate(),
+ x = (coordinates[0] - t[0]) / k,
+ y = (coordinates[1] - t[1]) / k;
+ return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska
+ : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii
+ : lower48).invert(coordinates);
+ };
+
+ albersUsa.stream = function(stream) {
+ return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]);
+ };
+
+ albersUsa.precision = function(_) {
+ if (!arguments.length) return lower48.precision();
+ lower48.precision(_), alaska.precision(_), hawaii.precision(_);
+ return reset();
+ };
+
+ albersUsa.scale = function(_) {
+ if (!arguments.length) return lower48.scale();
+ lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_);
+ return albersUsa.translate(lower48.translate());
+ };
+
+ albersUsa.translate = function(_) {
+ if (!arguments.length) return lower48.translate();
+ var k = lower48.scale(), x = +_[0], y = +_[1];
+
+ lower48Point = lower48
+ .translate(_)
+ .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]])
+ .stream(pointStream);
+
+ alaskaPoint = alaska
+ .translate([x - 0.307 * k, y + 0.201 * k])
+ .clipExtent([[x - 0.425 * k + epsilon$2, y + 0.120 * k + epsilon$2], [x - 0.214 * k - epsilon$2, y + 0.234 * k - epsilon$2]])
+ .stream(pointStream);
+
+ hawaiiPoint = hawaii
+ .translate([x - 0.205 * k, y + 0.212 * k])
+ .clipExtent([[x - 0.214 * k + epsilon$2, y + 0.166 * k + epsilon$2], [x - 0.115 * k - epsilon$2, y + 0.234 * k - epsilon$2]])
+ .stream(pointStream);
+
+ return reset();
+ };
+
+ albersUsa.fitExtent = function(extent, object) {
+ return fitExtent(albersUsa, extent, object);
+ };
+
+ albersUsa.fitSize = function(size, object) {
+ return fitSize(albersUsa, size, object);
+ };
+
+ function reset() {
+ cache = cacheStream = null;
+ return albersUsa;
+ }
+
+ return albersUsa.scale(1070);
+};
+
+function azimuthalRaw(scale) {
+ return function(x, y) {
+ var cx = cos$1(x),
+ cy = cos$1(y),
+ k = scale(cx * cy);
+ return [
+ k * cy * sin$1(x),
+ k * sin$1(y)
+ ];
+ }
+}
+
+function azimuthalInvert(angle) {
+ return function(x, y) {
+ var z = sqrt(x * x + y * y),
+ c = angle(z),
+ sc = sin$1(c),
+ cc = cos$1(c);
+ return [
+ atan2(x * sc, z * cc),
+ asin(z && y * sc / z)
+ ];
+ }
+}
+
+var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) {
+ return sqrt(2 / (1 + cxcy));
+});
+
+azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) {
+ return 2 * asin(z / 2);
+});
+
+var azimuthalEqualArea = function() {
+ return projection(azimuthalEqualAreaRaw)
+ .scale(124.75)
+ .clipAngle(180 - 1e-3);
+};
+
+var azimuthalEquidistantRaw = azimuthalRaw(function(c) {
+ return (c = acos(c)) && c / sin$1(c);
+});
+
+azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) {
+ return z;
+});
+
+var azimuthalEquidistant = function() {
+ return projection(azimuthalEquidistantRaw)
+ .scale(79.4188)
+ .clipAngle(180 - 1e-3);
+};
+
+function mercatorRaw(lambda, phi) {
+ return [lambda, log(tan((halfPi$2 + phi) / 2))];
+}
+
+mercatorRaw.invert = function(x, y) {
+ return [x, 2 * atan(exp(y)) - halfPi$2];
+};
+
+var mercator = function() {
+ return mercatorProjection(mercatorRaw)
+ .scale(961 / tau$3);
+};
+
+function mercatorProjection(project) {
+ var m = projection(project),
+ center = m.center,
+ scale = m.scale,
+ translate = m.translate,
+ clipExtent = m.clipExtent,
+ x0 = null, y0, x1, y1; // clip extent
+
+ m.scale = function(_) {
+ return arguments.length ? (scale(_), reclip()) : scale();
+ };
+
+ m.translate = function(_) {
+ return arguments.length ? (translate(_), reclip()) : translate();
+ };
+
+ m.center = function(_) {
+ return arguments.length ? (center(_), reclip()) : center();
+ };
+
+ m.clipExtent = function(_) {
+ return arguments.length ? ((_ == null ? x0 = y0 = x1 = y1 = null : (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1])), reclip()) : x0 == null ? null : [[x0, y0], [x1, y1]];
+ };
+
+ function reclip() {
+ var k = pi$3 * scale(),
+ t = m(rotation(m.rotate()).invert([0, 0]));
+ return clipExtent(x0 == null
+ ? [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]] : project === mercatorRaw
+ ? [[Math.max(t[0] - k, x0), y0], [Math.min(t[0] + k, x1), y1]]
+ : [[x0, Math.max(t[1] - k, y0)], [x1, Math.min(t[1] + k, y1)]]);
+ }
+
+ return reclip();
+}
+
+function tany(y) {
+ return tan((halfPi$2 + y) / 2);
+}
+
+function conicConformalRaw(y0, y1) {
+ var cy0 = cos$1(y0),
+ n = y0 === y1 ? sin$1(y0) : log(cy0 / cos$1(y1)) / log(tany(y1) / tany(y0)),
+ f = cy0 * pow(tany(y0), n) / n;
+
+ if (!n) return mercatorRaw;
+
+ function project(x, y) {
+ if (f > 0) { if (y < -halfPi$2 + epsilon$2) y = -halfPi$2 + epsilon$2; }
+ else { if (y > halfPi$2 - epsilon$2) y = halfPi$2 - epsilon$2; }
+ var r = f / pow(tany(y), n);
+ return [r * sin$1(n * x), f - r * cos$1(n * x)];
+ }
+
+ project.invert = function(x, y) {
+ var fy = f - y, r = sign(n) * sqrt(x * x + fy * fy);
+ return [atan2(x, abs(fy)) / n * sign(fy), 2 * atan(pow(f / r, 1 / n)) - halfPi$2];
+ };
+
+ return project;
+}
+
+var conicConformal = function() {
+ return conicProjection(conicConformalRaw)
+ .scale(109.5)
+ .parallels([30, 30]);
+};
+
+function equirectangularRaw(lambda, phi) {
+ return [lambda, phi];
+}
+
+equirectangularRaw.invert = equirectangularRaw;
+
+var equirectangular = function() {
+ return projection(equirectangularRaw)
+ .scale(152.63);
+};
+
+function conicEquidistantRaw(y0, y1) {
+ var cy0 = cos$1(y0),
+ n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0),
+ g = cy0 / n + y0;
+
+ if (abs(n) < epsilon$2) return equirectangularRaw;
+
+ function project(x, y) {
+ var gy = g - y, nx = n * x;
+ return [gy * sin$1(nx), g - gy * cos$1(nx)];
+ }
+
+ project.invert = function(x, y) {
+ var gy = g - y;
+ return [atan2(x, abs(gy)) / n * sign(gy), g - sign(n) * sqrt(x * x + gy * gy)];
+ };
+
+ return project;
+}
+
+var conicEquidistant = function() {
+ return conicProjection(conicEquidistantRaw)
+ .scale(131.154)
+ .center([0, 13.9389]);
+};
+
+function gnomonicRaw(x, y) {
+ var cy = cos$1(y), k = cos$1(x) * cy;
+ return [cy * sin$1(x) / k, sin$1(y) / k];
+}
+
+gnomonicRaw.invert = azimuthalInvert(atan);
+
+var gnomonic = function() {
+ return projection(gnomonicRaw)
+ .scale(144.049)
+ .clipAngle(60);
+};
+
+function scaleTranslate(kx, ky, tx, ty) {
+ return kx === 1 && ky === 1 && tx === 0 && ty === 0 ? identity$4 : transformer({
+ point: function(x, y) {
+ this.stream.point(x * kx + tx, y * ky + ty);
+ }
+ });
+}
+
+var identity$5 = function() {
+ var k = 1, tx = 0, ty = 0, sx = 1, sy = 1, transform = identity$4, // scale, translate and reflect
+ x0 = null, y0, x1, y1, clip = identity$4, // clip extent
+ cache,
+ cacheStream,
+ projection;
+
+ function reset() {
+ cache = cacheStream = null;
+ return projection;
+ }
+
+ return projection = {
+ stream: function(stream) {
+ return cache && cacheStream === stream ? cache : cache = transform(clip(cacheStream = stream));
+ },
+ clipExtent: function(_) {
+ return arguments.length ? (clip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$4) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];
+ },
+ scale: function(_) {
+ return arguments.length ? (transform = scaleTranslate((k = +_) * sx, k * sy, tx, ty), reset()) : k;
+ },
+ translate: function(_) {
+ return arguments.length ? (transform = scaleTranslate(k * sx, k * sy, tx = +_[0], ty = +_[1]), reset()) : [tx, ty];
+ },
+ reflectX: function(_) {
+ return arguments.length ? (transform = scaleTranslate(k * (sx = _ ? -1 : 1), k * sy, tx, ty), reset()) : sx < 0;
+ },
+ reflectY: function(_) {
+ return arguments.length ? (transform = scaleTranslate(k * sx, k * (sy = _ ? -1 : 1), tx, ty), reset()) : sy < 0;
+ },
+ fitExtent: function(extent, object) {
+ return fitExtent(projection, extent, object);
+ },
+ fitSize: function(size, object) {
+ return fitSize(projection, size, object);
+ }
+ };
+};
+
+function orthographicRaw(x, y) {
+ return [cos$1(y) * sin$1(x), sin$1(y)];
+}
+
+orthographicRaw.invert = azimuthalInvert(asin);
+
+var orthographic = function() {
+ return projection(orthographicRaw)
+ .scale(249.5)
+ .clipAngle(90 + epsilon$2);
+};
+
+function stereographicRaw(x, y) {
+ var cy = cos$1(y), k = 1 + cos$1(x) * cy;
+ return [cy * sin$1(x) / k, sin$1(y) / k];
+}
+
+stereographicRaw.invert = azimuthalInvert(function(z) {
+ return 2 * atan(z);
+});
+
+var stereographic = function() {
+ return projection(stereographicRaw)
+ .scale(250)
+ .clipAngle(142);
+};
+
+function transverseMercatorRaw(lambda, phi) {
+ return [log(tan((halfPi$2 + phi) / 2)), -lambda];
+}
+
+transverseMercatorRaw.invert = function(x, y) {
+ return [-y, 2 * atan(exp(x)) - halfPi$2];
+};
+
+var transverseMercator = function() {
+ var m = mercatorProjection(transverseMercatorRaw),
+ center = m.center,
+ rotate = m.rotate;
+
+ m.center = function(_) {
+ return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]);
+ };
+
+ m.rotate = function(_) {
+ return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]);
+ };
+
+ return rotate([0, 0, 90])
+ .scale(159.155);
+};
+
+function defaultSeparation(a, b) {
+ return a.parent === b.parent ? 1 : 2;
+}
+
+function meanX(children) {
+ return children.reduce(meanXReduce, 0) / children.length;
+}
+
+function meanXReduce(x, c) {
+ return x + c.x;
+}
+
+function maxY(children) {
+ return 1 + children.reduce(maxYReduce, 0);
+}
+
+function maxYReduce(y, c) {
+ return Math.max(y, c.y);
+}
+
+function leafLeft(node) {
+ var children;
+ while (children = node.children) node = children[0];
+ return node;
+}
+
+function leafRight(node) {
+ var children;
+ while (children = node.children) node = children[children.length - 1];
+ return node;
+}
+
+var cluster = function() {
+ var separation = defaultSeparation,
+ dx = 1,
+ dy = 1,
+ nodeSize = false;
+
+ function cluster(root) {
+ var previousNode,
+ x = 0;
+
+ // First walk, computing the initial x & y values.
+ root.eachAfter(function(node) {
+ var children = node.children;
+ if (children) {
+ node.x = meanX(children);
+ node.y = maxY(children);
+ } else {
+ node.x = previousNode ? x += separation(node, previousNode) : 0;
+ node.y = 0;
+ previousNode = node;
+ }
+ });
+
+ var left = leafLeft(root),
+ right = leafRight(root),
+ x0 = left.x - separation(left, right) / 2,
+ x1 = right.x + separation(right, left) / 2;
+
+ // Second walk, normalizing x & y to the desired size.
+ return root.eachAfter(nodeSize ? function(node) {
+ node.x = (node.x - root.x) * dx;
+ node.y = (root.y - node.y) * dy;
+ } : function(node) {
+ node.x = (node.x - x0) / (x1 - x0) * dx;
+ node.y = (1 - (root.y ? node.y / root.y : 1)) * dy;
+ });
+ }
+
+ cluster.separation = function(x) {
+ return arguments.length ? (separation = x, cluster) : separation;
+ };
+
+ cluster.size = function(x) {
+ return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]);
+ };
+
+ cluster.nodeSize = function(x) {
+ return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null);
+ };
+
+ return cluster;
+};
+
+function count(node) {
+ var sum = 0,
+ children = node.children,
+ i = children && children.length;
+ if (!i) sum = 1;
+ else while (--i >= 0) sum += children[i].value;
+ node.value = sum;
+}
+
+var node_count = function() {
+ return this.eachAfter(count);
+};
+
+var node_each = function(callback) {
+ var node = this, current, next = [node], children, i, n;
+ do {
+ current = next.reverse(), next = [];
+ while (node = current.pop()) {
+ callback(node), children = node.children;
+ if (children) for (i = 0, n = children.length; i < n; ++i) {
+ next.push(children[i]);
+ }
+ }
+ } while (next.length);
+ return this;
+};
+
+var node_eachBefore = function(callback) {
+ var node = this, nodes = [node], children, i;
+ while (node = nodes.pop()) {
+ callback(node), children = node.children;
+ if (children) for (i = children.length - 1; i >= 0; --i) {
+ nodes.push(children[i]);
+ }
+ }
+ return this;
+};
+
+var node_eachAfter = function(callback) {
+ var node = this, nodes = [node], next = [], children, i, n;
+ while (node = nodes.pop()) {
+ next.push(node), children = node.children;
+ if (children) for (i = 0, n = children.length; i < n; ++i) {
+ nodes.push(children[i]);
+ }
+ }
+ while (node = next.pop()) {
+ callback(node);
+ }
+ return this;
+};
+
+var node_sum = function(value) {
+ return this.eachAfter(function(node) {
+ var sum = +value(node.data) || 0,
+ children = node.children,
+ i = children && children.length;
+ while (--i >= 0) sum += children[i].value;
+ node.value = sum;
+ });
+};
+
+var node_sort = function(compare) {
+ return this.eachBefore(function(node) {
+ if (node.children) {
+ node.children.sort(compare);
+ }
+ });
+};
+
+var node_path = function(end) {
+ var start = this,
+ ancestor = leastCommonAncestor(start, end),
+ nodes = [start];
+ while (start !== ancestor) {
+ start = start.parent;
+ nodes.push(start);
+ }
+ var k = nodes.length;
+ while (end !== ancestor) {
+ nodes.splice(k, 0, end);
+ end = end.parent;
+ }
+ return nodes;
+};
+
+function leastCommonAncestor(a, b) {
+ if (a === b) return a;
+ var aNodes = a.ancestors(),
+ bNodes = b.ancestors(),
+ c = null;
+ a = aNodes.pop();
+ b = bNodes.pop();
+ while (a === b) {
+ c = a;
+ a = aNodes.pop();
+ b = bNodes.pop();
+ }
+ return c;
+}
+
+var node_ancestors = function() {
+ var node = this, nodes = [node];
+ while (node = node.parent) {
+ nodes.push(node);
+ }
+ return nodes;
+};
+
+var node_descendants = function() {
+ var nodes = [];
+ this.each(function(node) {
+ nodes.push(node);
+ });
+ return nodes;
+};
+
+var node_leaves = function() {
+ var leaves = [];
+ this.eachBefore(function(node) {
+ if (!node.children) {
+ leaves.push(node);
+ }
+ });
+ return leaves;
+};
+
+var node_links = function() {
+ var root = this, links = [];
+ root.each(function(node) {
+ if (node !== root) { // Don’t include the root’s parent, if any.
+ links.push({source: node.parent, target: node});
+ }
+ });
+ return links;
+};
+
+function hierarchy(data, children) {
+ var root = new Node(data),
+ valued = +data.value && (root.value = data.value),
+ node,
+ nodes = [root],
+ child,
+ childs,
+ i,
+ n;
+
+ if (children == null) children = defaultChildren;
+
+ while (node = nodes.pop()) {
+ if (valued) node.value = +node.data.value;
+ if ((childs = children(node.data)) && (n = childs.length)) {
+ node.children = new Array(n);
+ for (i = n - 1; i >= 0; --i) {
+ nodes.push(child = node.children[i] = new Node(childs[i]));
+ child.parent = node;
+ child.depth = node.depth + 1;
+ }
+ }
+ }
+
+ return root.eachBefore(computeHeight);
+}
+
+function node_copy() {
+ return hierarchy(this).eachBefore(copyData);
+}
+
+function defaultChildren(d) {
+ return d.children;
+}
+
+function copyData(node) {
+ node.data = node.data.data;
+}
+
+function computeHeight(node) {
+ var height = 0;
+ do node.height = height;
+ while ((node = node.parent) && (node.height < ++height));
+}
+
+function Node(data) {
+ this.data = data;
+ this.depth =
+ this.height = 0;
+ this.parent = null;
+}
+
+Node.prototype = hierarchy.prototype = {
+ constructor: Node,
+ count: node_count,
+ each: node_each,
+ eachAfter: node_eachAfter,
+ eachBefore: node_eachBefore,
+ sum: node_sum,
+ sort: node_sort,
+ path: node_path,
+ ancestors: node_ancestors,
+ descendants: node_descendants,
+ leaves: node_leaves,
+ links: node_links,
+ copy: node_copy
+};
+
+function Node$2(value) {
+ this._ = value;
+ this.next = null;
+}
+
+var shuffle$1 = function(array) {
+ var i,
+ n = (array = array.slice()).length,
+ head = null,
+ node = head;
+
+ while (n) {
+ var next = new Node$2(array[n - 1]);
+ if (node) node = node.next = next;
+ else node = head = next;
+ array[i] = array[--n];
+ }
+
+ return {
+ head: head,
+ tail: node
+ };
+};
+
+var enclose = function(circles) {
+ return encloseN(shuffle$1(circles), []);
+};
+
+function encloses(a, b) {
+ var dx = b.x - a.x,
+ dy = b.y - a.y,
+ dr = a.r - b.r;
+ return dr * dr + 1e-6 > dx * dx + dy * dy;
+}
+
+// Returns the smallest circle that contains circles L and intersects circles B.
+function encloseN(L, B) {
+ var circle,
+ l0 = null,
+ l1 = L.head,
+ l2,
+ p1;
+
+ switch (B.length) {
+ case 1: circle = enclose1(B[0]); break;
+ case 2: circle = enclose2(B[0], B[1]); break;
+ case 3: circle = enclose3(B[0], B[1], B[2]); break;
+ }
+
+ while (l1) {
+ p1 = l1._, l2 = l1.next;
+ if (!circle || !encloses(circle, p1)) {
+
+ // Temporarily truncate L before l1.
+ if (l0) L.tail = l0, l0.next = null;
+ else L.head = L.tail = null;
+
+ B.push(p1);
+ circle = encloseN(L, B); // Note: reorders L!
+ B.pop();
+
+ // Move l1 to the front of L and reconnect the truncated list L.
+ if (L.head) l1.next = L.head, L.head = l1;
+ else l1.next = null, L.head = L.tail = l1;
+ l0 = L.tail, l0.next = l2;
+
+ } else {
+ l0 = l1;
+ }
+ l1 = l2;
+ }
+
+ L.tail = l0;
+ return circle;
+}
+
+function enclose1(a) {
+ return {
+ x: a.x,
+ y: a.y,
+ r: a.r
+ };
+}
+
+function enclose2(a, b) {
+ var x1 = a.x, y1 = a.y, r1 = a.r,
+ x2 = b.x, y2 = b.y, r2 = b.r,
+ x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1,
+ l = Math.sqrt(x21 * x21 + y21 * y21);
+ return {
+ x: (x1 + x2 + x21 / l * r21) / 2,
+ y: (y1 + y2 + y21 / l * r21) / 2,
+ r: (l + r1 + r2) / 2
+ };
+}
+
+function enclose3(a, b, c) {
+ var x1 = a.x, y1 = a.y, r1 = a.r,
+ x2 = b.x, y2 = b.y, r2 = b.r,
+ x3 = c.x, y3 = c.y, r3 = c.r,
+ a2 = 2 * (x1 - x2),
+ b2 = 2 * (y1 - y2),
+ c2 = 2 * (r2 - r1),
+ d2 = x1 * x1 + y1 * y1 - r1 * r1 - x2 * x2 - y2 * y2 + r2 * r2,
+ a3 = 2 * (x1 - x3),
+ b3 = 2 * (y1 - y3),
+ c3 = 2 * (r3 - r1),
+ d3 = x1 * x1 + y1 * y1 - r1 * r1 - x3 * x3 - y3 * y3 + r3 * r3,
+ ab = a3 * b2 - a2 * b3,
+ xa = (b2 * d3 - b3 * d2) / ab - x1,
+ xb = (b3 * c2 - b2 * c3) / ab,
+ ya = (a3 * d2 - a2 * d3) / ab - y1,
+ yb = (a2 * c3 - a3 * c2) / ab,
+ A = xb * xb + yb * yb - 1,
+ B = 2 * (xa * xb + ya * yb + r1),
+ C = xa * xa + ya * ya - r1 * r1,
+ r = (-B - Math.sqrt(B * B - 4 * A * C)) / (2 * A);
+ return {
+ x: xa + xb * r + x1,
+ y: ya + yb * r + y1,
+ r: r
+ };
+}
+
+function place(a, b, c) {
+ var ax = a.x,
+ ay = a.y,
+ da = b.r + c.r,
+ db = a.r + c.r,
+ dx = b.x - ax,
+ dy = b.y - ay,
+ dc = dx * dx + dy * dy;
+ if (dc) {
+ var x = 0.5 + ((db *= db) - (da *= da)) / (2 * dc),
+ y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
+ c.x = ax + x * dx + y * dy;
+ c.y = ay + x * dy - y * dx;
+ } else {
+ c.x = ax + db;
+ c.y = ay;
+ }
+}
+
+function intersects(a, b) {
+ var dx = b.x - a.x,
+ dy = b.y - a.y,
+ dr = a.r + b.r;
+ return dr * dr - 1e-6 > dx * dx + dy * dy;
+}
+
+function distance2(node, x, y) {
+ var a = node._,
+ b = node.next._,
+ ab = a.r + b.r,
+ dx = (a.x * b.r + b.x * a.r) / ab - x,
+ dy = (a.y * b.r + b.y * a.r) / ab - y;
+ return dx * dx + dy * dy;
+}
+
+function Node$1(circle) {
+ this._ = circle;
+ this.next = null;
+ this.previous = null;
+}
+
+function packEnclose(circles) {
+ if (!(n = circles.length)) return 0;
+
+ var a, b, c, n;
+
+ // Place the first circle.
+ a = circles[0], a.x = 0, a.y = 0;
+ if (!(n > 1)) return a.r;
+
+ // Place the second circle.
+ b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0;
+ if (!(n > 2)) return a.r + b.r;
+
+ // Place the third circle.
+ place(b, a, c = circles[2]);
+
+ // Initialize the weighted centroid.
+ var aa = a.r * a.r,
+ ba = b.r * b.r,
+ ca = c.r * c.r,
+ oa = aa + ba + ca,
+ ox = aa * a.x + ba * b.x + ca * c.x,
+ oy = aa * a.y + ba * b.y + ca * c.y,
+ cx, cy, i, j, k, sj, sk;
+
+ // Initialize the front-chain using the first three circles a, b and c.
+ a = new Node$1(a), b = new Node$1(b), c = new Node$1(c);
+ a.next = c.previous = b;
+ b.next = a.previous = c;
+ c.next = b.previous = a;
+
+ // Attempt to place each remaining circle…
+ pack: for (i = 3; i < n; ++i) {
+ place(a._, b._, c = circles[i]), c = new Node$1(c);
+
+ // Find the closest intersecting circle on the front-chain, if any.
+ // “Closeness” is determined by linear distance along the front-chain.
+ // “Ahead” or “behind” is likewise determined by linear distance.
+ j = b.next, k = a.previous, sj = b._.r, sk = a._.r;
+ do {
+ if (sj <= sk) {
+ if (intersects(j._, c._)) {
+ b = j, a.next = b, b.previous = a, --i;
+ continue pack;
+ }
+ sj += j._.r, j = j.next;
+ } else {
+ if (intersects(k._, c._)) {
+ a = k, a.next = b, b.previous = a, --i;
+ continue pack;
+ }
+ sk += k._.r, k = k.previous;
+ }
+ } while (j !== k.next);
+
+ // Success! Insert the new circle c between a and b.
+ c.previous = a, c.next = b, a.next = b.previous = b = c;
+
+ // Update the weighted centroid.
+ oa += ca = c._.r * c._.r;
+ ox += ca * c._.x;
+ oy += ca * c._.y;
+
+ // Compute the new closest circle pair to the centroid.
+ aa = distance2(a, cx = ox / oa, cy = oy / oa);
+ while ((c = c.next) !== b) {
+ if ((ca = distance2(c, cx, cy)) < aa) {
+ a = c, aa = ca;
+ }
+ }
+ b = a.next;
+ }
+
+ // Compute the enclosing circle of the front chain.
+ a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a);
+
+ // Translate the circles to put the enclosing circle around the origin.
+ for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y;
+
+ return c.r;
+}
+
+var siblings = function(circles) {
+ packEnclose(circles);
+ return circles;
+};
+
+function optional(f) {
+ return f == null ? null : required(f);
+}
+
+function required(f) {
+ if (typeof f !== "function") throw new Error;
+ return f;
+}
+
+function constantZero() {
+ return 0;
+}
+
+var constant$8 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+function defaultRadius$1(d) {
+ return Math.sqrt(d.value);
+}
+
+var index$2 = function() {
+ var radius = null,
+ dx = 1,
+ dy = 1,
+ padding = constantZero;
+
+ function pack(root) {
+ root.x = dx / 2, root.y = dy / 2;
+ if (radius) {
+ root.eachBefore(radiusLeaf(radius))
+ .eachAfter(packChildren(padding, 0.5))
+ .eachBefore(translateChild(1));
+ } else {
+ root.eachBefore(radiusLeaf(defaultRadius$1))
+ .eachAfter(packChildren(constantZero, 1))
+ .eachAfter(packChildren(padding, root.r / Math.min(dx, dy)))
+ .eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r)));
+ }
+ return root;
+ }
+
+ pack.radius = function(x) {
+ return arguments.length ? (radius = optional(x), pack) : radius;
+ };
+
+ pack.size = function(x) {
+ return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy];
+ };
+
+ pack.padding = function(x) {
+ return arguments.length ? (padding = typeof x === "function" ? x : constant$8(+x), pack) : padding;
+ };
+
+ return pack;
+};
+
+function radiusLeaf(radius) {
+ return function(node) {
+ if (!node.children) {
+ node.r = Math.max(0, +radius(node) || 0);
+ }
+ };
+}
+
+function packChildren(padding, k) {
+ return function(node) {
+ if (children = node.children) {
+ var children,
+ i,
+ n = children.length,
+ r = padding(node) * k || 0,
+ e;
+
+ if (r) for (i = 0; i < n; ++i) children[i].r += r;
+ e = packEnclose(children);
+ if (r) for (i = 0; i < n; ++i) children[i].r -= r;
+ node.r = e + r;
+ }
+ };
+}
+
+function translateChild(k) {
+ return function(node) {
+ var parent = node.parent;
+ node.r *= k;
+ if (parent) {
+ node.x = parent.x + k * node.x;
+ node.y = parent.y + k * node.y;
+ }
+ };
+}
+
+var roundNode = function(node) {
+ node.x0 = Math.round(node.x0);
+ node.y0 = Math.round(node.y0);
+ node.x1 = Math.round(node.x1);
+ node.y1 = Math.round(node.y1);
+};
+
+var treemapDice = function(parent, x0, y0, x1, y1) {
+ var nodes = parent.children,
+ node,
+ i = -1,
+ n = nodes.length,
+ k = parent.value && (x1 - x0) / parent.value;
+
+ while (++i < n) {
+ node = nodes[i], node.y0 = y0, node.y1 = y1;
+ node.x0 = x0, node.x1 = x0 += node.value * k;
+ }
+};
+
+var partition = function() {
+ var dx = 1,
+ dy = 1,
+ padding = 0,
+ round = false;
+
+ function partition(root) {
+ var n = root.height + 1;
+ root.x0 =
+ root.y0 = padding;
+ root.x1 = dx;
+ root.y1 = dy / n;
+ root.eachBefore(positionNode(dy, n));
+ if (round) root.eachBefore(roundNode);
+ return root;
+ }
+
+ function positionNode(dy, n) {
+ return function(node) {
+ if (node.children) {
+ treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n);
+ }
+ var x0 = node.x0,
+ y0 = node.y0,
+ x1 = node.x1 - padding,
+ y1 = node.y1 - padding;
+ if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
+ if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
+ node.x0 = x0;
+ node.y0 = y0;
+ node.x1 = x1;
+ node.y1 = y1;
+ };
+ }
+
+ partition.round = function(x) {
+ return arguments.length ? (round = !!x, partition) : round;
+ };
+
+ partition.size = function(x) {
+ return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy];
+ };
+
+ partition.padding = function(x) {
+ return arguments.length ? (padding = +x, partition) : padding;
+ };
+
+ return partition;
+};
+
+var keyPrefix$1 = "$";
+var preroot = {depth: -1};
+var ambiguous = {};
+
+function defaultId(d) {
+ return d.id;
+}
+
+function defaultParentId(d) {
+ return d.parentId;
+}
+
+var stratify = function() {
+ var id = defaultId,
+ parentId = defaultParentId;
+
+ function stratify(data) {
+ var d,
+ i,
+ n = data.length,
+ root,
+ parent,
+ node,
+ nodes = new Array(n),
+ nodeId,
+ nodeKey,
+ nodeByKey = {};
+
+ for (i = 0; i < n; ++i) {
+ d = data[i], node = nodes[i] = new Node(d);
+ if ((nodeId = id(d, i, data)) != null && (nodeId += "")) {
+ nodeKey = keyPrefix$1 + (node.id = nodeId);
+ nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node;
+ }
+ }
+
+ for (i = 0; i < n; ++i) {
+ node = nodes[i], nodeId = parentId(data[i], i, data);
+ if (nodeId == null || !(nodeId += "")) {
+ if (root) throw new Error("multiple roots");
+ root = node;
+ } else {
+ parent = nodeByKey[keyPrefix$1 + nodeId];
+ if (!parent) throw new Error("missing: " + nodeId);
+ if (parent === ambiguous) throw new Error("ambiguous: " + nodeId);
+ if (parent.children) parent.children.push(node);
+ else parent.children = [node];
+ node.parent = parent;
+ }
+ }
+
+ if (!root) throw new Error("no root");
+ root.parent = preroot;
+ root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight);
+ root.parent = null;
+ if (n > 0) throw new Error("cycle");
+
+ return root;
+ }
+
+ stratify.id = function(x) {
+ return arguments.length ? (id = required(x), stratify) : id;
+ };
+
+ stratify.parentId = function(x) {
+ return arguments.length ? (parentId = required(x), stratify) : parentId;
+ };
+
+ return stratify;
+};
+
+function defaultSeparation$1(a, b) {
+ return a.parent === b.parent ? 1 : 2;
+}
+
+// function radialSeparation(a, b) {
+// return (a.parent === b.parent ? 1 : 2) / a.depth;
+// }
+
+// This function is used to traverse the left contour of a subtree (or
+// subforest). It returns the successor of v on this contour. This successor is
+// either given by the leftmost child of v or by the thread of v. The function
+// returns null if and only if v is on the highest level of its subtree.
+function nextLeft(v) {
+ var children = v.children;
+ return children ? children[0] : v.t;
+}
+
+// This function works analogously to nextLeft.
+function nextRight(v) {
+ var children = v.children;
+ return children ? children[children.length - 1] : v.t;
+}
+
+// Shifts the current subtree rooted at w+. This is done by increasing
+// prelim(w+) and mod(w+) by shift.
+function moveSubtree(wm, wp, shift) {
+ var change = shift / (wp.i - wm.i);
+ wp.c -= change;
+ wp.s += shift;
+ wm.c += change;
+ wp.z += shift;
+ wp.m += shift;
+}
+
+// All other shifts, applied to the smaller subtrees between w- and w+, are
+// performed by this function. To prepare the shifts, we have to adjust
+// change(w+), shift(w+), and change(w-).
+function executeShifts(v) {
+ var shift = 0,
+ change = 0,
+ children = v.children,
+ i = children.length,
+ w;
+ while (--i >= 0) {
+ w = children[i];
+ w.z += shift;
+ w.m += shift;
+ shift += w.s + (change += w.c);
+ }
+}
+
+// If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise,
+// returns the specified (default) ancestor.
+function nextAncestor(vim, v, ancestor) {
+ return vim.a.parent === v.parent ? vim.a : ancestor;
+}
+
+function TreeNode(node, i) {
+ this._ = node;
+ this.parent = null;
+ this.children = null;
+ this.A = null; // default ancestor
+ this.a = this; // ancestor
+ this.z = 0; // prelim
+ this.m = 0; // mod
+ this.c = 0; // change
+ this.s = 0; // shift
+ this.t = null; // thread
+ this.i = i; // number
+}
+
+TreeNode.prototype = Object.create(Node.prototype);
+
+function treeRoot(root) {
+ var tree = new TreeNode(root, 0),
+ node,
+ nodes = [tree],
+ child,
+ children,
+ i,
+ n;
+
+ while (node = nodes.pop()) {
+ if (children = node._.children) {
+ node.children = new Array(n = children.length);
+ for (i = n - 1; i >= 0; --i) {
+ nodes.push(child = node.children[i] = new TreeNode(children[i], i));
+ child.parent = node;
+ }
+ }
+ }
+
+ (tree.parent = new TreeNode(null, 0)).children = [tree];
+ return tree;
+}
+
+// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm
+var tree = function() {
+ var separation = defaultSeparation$1,
+ dx = 1,
+ dy = 1,
+ nodeSize = null;
+
+ function tree(root) {
+ var t = treeRoot(root);
+
+ // Compute the layout using Buchheim et al.’s algorithm.
+ t.eachAfter(firstWalk), t.parent.m = -t.z;
+ t.eachBefore(secondWalk);
+
+ // If a fixed node size is specified, scale x and y.
+ if (nodeSize) root.eachBefore(sizeNode);
+
+ // If a fixed tree size is specified, scale x and y based on the extent.
+ // Compute the left-most, right-most, and depth-most nodes for extents.
+ else {
+ var left = root,
+ right = root,
+ bottom = root;
+ root.eachBefore(function(node) {
+ if (node.x < left.x) left = node;
+ if (node.x > right.x) right = node;
+ if (node.depth > bottom.depth) bottom = node;
+ });
+ var s = left === right ? 1 : separation(left, right) / 2,
+ tx = s - left.x,
+ kx = dx / (right.x + s + tx),
+ ky = dy / (bottom.depth || 1);
+ root.eachBefore(function(node) {
+ node.x = (node.x + tx) * kx;
+ node.y = node.depth * ky;
+ });
+ }
+
+ return root;
+ }
+
+ // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is
+ // applied recursively to the children of v, as well as the function
+ // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the
+ // node v is placed to the midpoint of its outermost children.
+ function firstWalk(v) {
+ var children = v.children,
+ siblings = v.parent.children,
+ w = v.i ? siblings[v.i - 1] : null;
+ if (children) {
+ executeShifts(v);
+ var midpoint = (children[0].z + children[children.length - 1].z) / 2;
+ if (w) {
+ v.z = w.z + separation(v._, w._);
+ v.m = v.z - midpoint;
+ } else {
+ v.z = midpoint;
+ }
+ } else if (w) {
+ v.z = w.z + separation(v._, w._);
+ }
+ v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
+ }
+
+ // Computes all real x-coordinates by summing up the modifiers recursively.
+ function secondWalk(v) {
+ v._.x = v.z + v.parent.m;
+ v.m += v.parent.m;
+ }
+
+ // The core of the algorithm. Here, a new subtree is combined with the
+ // previous subtrees. Threads are used to traverse the inside and outside
+ // contours of the left and right subtree up to the highest common level. The
+ // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the
+ // superscript o means outside and i means inside, the subscript - means left
+ // subtree and + means right subtree. For summing up the modifiers along the
+ // contour, we use respective variables si+, si-, so-, and so+. Whenever two
+ // nodes of the inside contours conflict, we compute the left one of the
+ // greatest uncommon ancestors using the function ANCESTOR and call MOVE
+ // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees.
+ // Finally, we add a new thread (if necessary).
+ function apportion(v, w, ancestor) {
+ if (w) {
+ var vip = v,
+ vop = v,
+ vim = w,
+ vom = vip.parent.children[0],
+ sip = vip.m,
+ sop = vop.m,
+ sim = vim.m,
+ som = vom.m,
+ shift;
+ while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) {
+ vom = nextLeft(vom);
+ vop = nextRight(vop);
+ vop.a = v;
+ shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
+ if (shift > 0) {
+ moveSubtree(nextAncestor(vim, v, ancestor), v, shift);
+ sip += shift;
+ sop += shift;
+ }
+ sim += vim.m;
+ sip += vip.m;
+ som += vom.m;
+ sop += vop.m;
+ }
+ if (vim && !nextRight(vop)) {
+ vop.t = vim;
+ vop.m += sim - sop;
+ }
+ if (vip && !nextLeft(vom)) {
+ vom.t = vip;
+ vom.m += sip - som;
+ ancestor = v;
+ }
+ }
+ return ancestor;
+ }
+
+ function sizeNode(node) {
+ node.x *= dx;
+ node.y = node.depth * dy;
+ }
+
+ tree.separation = function(x) {
+ return arguments.length ? (separation = x, tree) : separation;
+ };
+
+ tree.size = function(x) {
+ return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]);
+ };
+
+ tree.nodeSize = function(x) {
+ return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null);
+ };
+
+ return tree;
+};
+
+var treemapSlice = function(parent, x0, y0, x1, y1) {
+ var nodes = parent.children,
+ node,
+ i = -1,
+ n = nodes.length,
+ k = parent.value && (y1 - y0) / parent.value;
+
+ while (++i < n) {
+ node = nodes[i], node.x0 = x0, node.x1 = x1;
+ node.y0 = y0, node.y1 = y0 += node.value * k;
+ }
+};
+
+var phi = (1 + Math.sqrt(5)) / 2;
+
+function squarifyRatio(ratio, parent, x0, y0, x1, y1) {
+ var rows = [],
+ nodes = parent.children,
+ row,
+ nodeValue,
+ i0 = 0,
+ i1 = 0,
+ n = nodes.length,
+ dx, dy,
+ value = parent.value,
+ sumValue,
+ minValue,
+ maxValue,
+ newRatio,
+ minRatio,
+ alpha,
+ beta;
+
+ while (i0 < n) {
+ dx = x1 - x0, dy = y1 - y0;
+
+ // Find the next non-empty node.
+ do sumValue = nodes[i1++].value; while (!sumValue && i1 < n);
+ minValue = maxValue = sumValue;
+ alpha = Math.max(dy / dx, dx / dy) / (value * ratio);
+ beta = sumValue * sumValue * alpha;
+ minRatio = Math.max(maxValue / beta, beta / minValue);
+
+ // Keep adding nodes while the aspect ratio maintains or improves.
+ for (; i1 < n; ++i1) {
+ sumValue += nodeValue = nodes[i1].value;
+ if (nodeValue < minValue) minValue = nodeValue;
+ if (nodeValue > maxValue) maxValue = nodeValue;
+ beta = sumValue * sumValue * alpha;
+ newRatio = Math.max(maxValue / beta, beta / minValue);
+ if (newRatio > minRatio) { sumValue -= nodeValue; break; }
+ minRatio = newRatio;
+ }
+
+ // Position and record the row orientation.
+ rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)});
+ if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1);
+ else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1);
+ value -= sumValue, i0 = i1;
+ }
+
+ return rows;
+}
+
+var squarify = ((function custom(ratio) {
+
+ function squarify(parent, x0, y0, x1, y1) {
+ squarifyRatio(ratio, parent, x0, y0, x1, y1);
+ }
+
+ squarify.ratio = function(x) {
+ return custom((x = +x) > 1 ? x : 1);
+ };
+
+ return squarify;
+}))(phi);
+
+var index$3 = function() {
+ var tile = squarify,
+ round = false,
+ dx = 1,
+ dy = 1,
+ paddingStack = [0],
+ paddingInner = constantZero,
+ paddingTop = constantZero,
+ paddingRight = constantZero,
+ paddingBottom = constantZero,
+ paddingLeft = constantZero;
+
+ function treemap(root) {
+ root.x0 =
+ root.y0 = 0;
+ root.x1 = dx;
+ root.y1 = dy;
+ root.eachBefore(positionNode);
+ paddingStack = [0];
+ if (round) root.eachBefore(roundNode);
+ return root;
+ }
+
+ function positionNode(node) {
+ var p = paddingStack[node.depth],
+ x0 = node.x0 + p,
+ y0 = node.y0 + p,
+ x1 = node.x1 - p,
+ y1 = node.y1 - p;
+ if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
+ if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
+ node.x0 = x0;
+ node.y0 = y0;
+ node.x1 = x1;
+ node.y1 = y1;
+ if (node.children) {
+ p = paddingStack[node.depth + 1] = paddingInner(node) / 2;
+ x0 += paddingLeft(node) - p;
+ y0 += paddingTop(node) - p;
+ x1 -= paddingRight(node) - p;
+ y1 -= paddingBottom(node) - p;
+ if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
+ if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
+ tile(node, x0, y0, x1, y1);
+ }
+ }
+
+ treemap.round = function(x) {
+ return arguments.length ? (round = !!x, treemap) : round;
+ };
+
+ treemap.size = function(x) {
+ return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy];
+ };
+
+ treemap.tile = function(x) {
+ return arguments.length ? (tile = required(x), treemap) : tile;
+ };
+
+ treemap.padding = function(x) {
+ return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner();
+ };
+
+ treemap.paddingInner = function(x) {
+ return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$8(+x), treemap) : paddingInner;
+ };
+
+ treemap.paddingOuter = function(x) {
+ return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop();
+ };
+
+ treemap.paddingTop = function(x) {
+ return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$8(+x), treemap) : paddingTop;
+ };
+
+ treemap.paddingRight = function(x) {
+ return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$8(+x), treemap) : paddingRight;
+ };
+
+ treemap.paddingBottom = function(x) {
+ return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$8(+x), treemap) : paddingBottom;
+ };
+
+ treemap.paddingLeft = function(x) {
+ return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$8(+x), treemap) : paddingLeft;
+ };
+
+ return treemap;
+};
+
+var binary = function(parent, x0, y0, x1, y1) {
+ var nodes = parent.children,
+ i, n = nodes.length,
+ sum, sums = new Array(n + 1);
+
+ for (sums[0] = sum = i = 0; i < n; ++i) {
+ sums[i + 1] = sum += nodes[i].value;
+ }
+
+ partition(0, n, parent.value, x0, y0, x1, y1);
+
+ function partition(i, j, value, x0, y0, x1, y1) {
+ if (i >= j - 1) {
+ var node = nodes[i];
+ node.x0 = x0, node.y0 = y0;
+ node.x1 = x1, node.y1 = y1;
+ return;
+ }
+
+ var valueOffset = sums[i],
+ valueTarget = (value / 2) + valueOffset,
+ k = i + 1,
+ hi = j - 1;
+
+ while (k < hi) {
+ var mid = k + hi >>> 1;
+ if (sums[mid] < valueTarget) k = mid + 1;
+ else hi = mid;
+ }
+
+ if ((valueTarget - sums[k - 1]) < (sums[k] - valueTarget) && i + 1 < k) --k;
+
+ var valueLeft = sums[k] - valueOffset,
+ valueRight = value - valueLeft;
+
+ if ((x1 - x0) > (y1 - y0)) {
+ var xk = (x0 * valueRight + x1 * valueLeft) / value;
+ partition(i, k, valueLeft, x0, y0, xk, y1);
+ partition(k, j, valueRight, xk, y0, x1, y1);
+ } else {
+ var yk = (y0 * valueRight + y1 * valueLeft) / value;
+ partition(i, k, valueLeft, x0, y0, x1, yk);
+ partition(k, j, valueRight, x0, yk, x1, y1);
+ }
+ }
+};
+
+var sliceDice = function(parent, x0, y0, x1, y1) {
+ (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1);
+};
+
+var resquarify = ((function custom(ratio) {
+
+ function resquarify(parent, x0, y0, x1, y1) {
+ if ((rows = parent._squarify) && (rows.ratio === ratio)) {
+ var rows,
+ row,
+ nodes,
+ i,
+ j = -1,
+ n,
+ m = rows.length,
+ value = parent.value;
+
+ while (++j < m) {
+ row = rows[j], nodes = row.children;
+ for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value;
+ if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value);
+ else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1);
+ value -= row.value;
+ }
+ } else {
+ parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1);
+ rows.ratio = ratio;
+ }
+ }
+
+ resquarify.ratio = function(x) {
+ return custom((x = +x) > 1 ? x : 1);
+ };
+
+ return resquarify;
+}))(phi);
+
+var area$1 = function(polygon) {
+ var i = -1,
+ n = polygon.length,
+ a,
+ b = polygon[n - 1],
+ area = 0;
+
+ while (++i < n) {
+ a = b;
+ b = polygon[i];
+ area += a[1] * b[0] - a[0] * b[1];
+ }
+
+ return area / 2;
+};
+
+var centroid$1 = function(polygon) {
+ var i = -1,
+ n = polygon.length,
+ x = 0,
+ y = 0,
+ a,
+ b = polygon[n - 1],
+ c,
+ k = 0;
+
+ while (++i < n) {
+ a = b;
+ b = polygon[i];
+ k += c = a[0] * b[1] - b[0] * a[1];
+ x += (a[0] + b[0]) * c;
+ y += (a[1] + b[1]) * c;
+ }
+
+ return k *= 3, [x / k, y / k];
+};
+
+// Returns the 2D cross product of AB and AC vectors, i.e., the z-component of
+// the 3D cross product in a quadrant I Cartesian coordinate system (+x is
+// right, +y is up). Returns a positive value if ABC is counter-clockwise,
+// negative if clockwise, and zero if the points are collinear.
+var cross$1 = function(a, b, c) {
+ return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
+};
+
+function lexicographicOrder(a, b) {
+ return a[0] - b[0] || a[1] - b[1];
+}
+
+// Computes the upper convex hull per the monotone chain algorithm.
+// Assumes points.length >= 3, is sorted by x, unique in y.
+// Returns an array of indices into points in left-to-right order.
+function computeUpperHullIndexes(points) {
+ var n = points.length,
+ indexes = [0, 1],
+ size = 2;
+
+ for (var i = 2; i < n; ++i) {
+ while (size > 1 && cross$1(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size;
+ indexes[size++] = i;
+ }
+
+ return indexes.slice(0, size); // remove popped points
+}
+
+var hull = function(points) {
+ if ((n = points.length) < 3) return null;
+
+ var i,
+ n,
+ sortedPoints = new Array(n),
+ flippedPoints = new Array(n);
+
+ for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i];
+ sortedPoints.sort(lexicographicOrder);
+ for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]];
+
+ var upperIndexes = computeUpperHullIndexes(sortedPoints),
+ lowerIndexes = computeUpperHullIndexes(flippedPoints);
+
+ // Construct the hull polygon, removing possible duplicate endpoints.
+ var skipLeft = lowerIndexes[0] === upperIndexes[0],
+ skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1],
+ hull = [];
+
+ // Add upper hull in right-to-l order.
+ // Then add lower hull in left-to-right order.
+ for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]);
+ for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]);
+
+ return hull;
+};
+
+var contains$1 = function(polygon, point) {
+ var n = polygon.length,
+ p = polygon[n - 1],
+ x = point[0], y = point[1],
+ x0 = p[0], y0 = p[1],
+ x1, y1,
+ inside = false;
+
+ for (var i = 0; i < n; ++i) {
+ p = polygon[i], x1 = p[0], y1 = p[1];
+ if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside;
+ x0 = x1, y0 = y1;
+ }
+
+ return inside;
+};
+
+var length$2 = function(polygon) {
+ var i = -1,
+ n = polygon.length,
+ b = polygon[n - 1],
+ xa,
+ ya,
+ xb = b[0],
+ yb = b[1],
+ perimeter = 0;
+
+ while (++i < n) {
+ xa = xb;
+ ya = yb;
+ b = polygon[i];
+ xb = b[0];
+ yb = b[1];
+ xa -= xb;
+ ya -= yb;
+ perimeter += Math.sqrt(xa * xa + ya * ya);
+ }
+
+ return perimeter;
+};
+
+var slice$3 = [].slice;
+
+var noabort = {};
+
+function Queue(size) {
+ if (!(size >= 1)) throw new Error;
+ this._size = size;
+ this._call =
+ this._error = null;
+ this._tasks = [];
+ this._data = [];
+ this._waiting =
+ this._active =
+ this._ended =
+ this._start = 0; // inside a synchronous task callback?
+}
+
+Queue.prototype = queue.prototype = {
+ constructor: Queue,
+ defer: function(callback) {
+ if (typeof callback !== "function" || this._call) throw new Error;
+ if (this._error != null) return this;
+ var t = slice$3.call(arguments, 1);
+ t.push(callback);
+ ++this._waiting, this._tasks.push(t);
+ poke$1(this);
+ return this;
+ },
+ abort: function() {
+ if (this._error == null) abort(this, new Error("abort"));
+ return this;
+ },
+ await: function(callback) {
+ if (typeof callback !== "function" || this._call) throw new Error;
+ this._call = function(error, results) { callback.apply(null, [error].concat(results)); };
+ maybeNotify(this);
+ return this;
+ },
+ awaitAll: function(callback) {
+ if (typeof callback !== "function" || this._call) throw new Error;
+ this._call = callback;
+ maybeNotify(this);
+ return this;
+ }
+};
+
+function poke$1(q) {
+ if (!q._start) {
+ try { start$1(q); } // let the current task complete
+ catch (e) {
+ if (q._tasks[q._ended + q._active - 1]) abort(q, e); // task errored synchronously
+ else if (!q._data) throw e; // await callback errored synchronously
+ }
+ }
+}
+
+function start$1(q) {
+ while (q._start = q._waiting && q._active < q._size) {
+ var i = q._ended + q._active,
+ t = q._tasks[i],
+ j = t.length - 1,
+ c = t[j];
+ t[j] = end(q, i);
+ --q._waiting, ++q._active;
+ t = c.apply(null, t);
+ if (!q._tasks[i]) continue; // task finished synchronously
+ q._tasks[i] = t || noabort;
+ }
+}
+
+function end(q, i) {
+ return function(e, r) {
+ if (!q._tasks[i]) return; // ignore multiple callbacks
+ --q._active, ++q._ended;
+ q._tasks[i] = null;
+ if (q._error != null) return; // ignore secondary errors
+ if (e != null) {
+ abort(q, e);
+ } else {
+ q._data[i] = r;
+ if (q._waiting) poke$1(q);
+ else maybeNotify(q);
+ }
+ };
+}
+
+function abort(q, e) {
+ var i = q._tasks.length, t;
+ q._error = e; // ignore active callbacks
+ q._data = undefined; // allow gc
+ q._waiting = NaN; // prevent starting
+
+ while (--i >= 0) {
+ if (t = q._tasks[i]) {
+ q._tasks[i] = null;
+ if (t.abort) {
+ try { t.abort(); }
+ catch (e) { /* ignore */ }
+ }
+ }
+ }
+
+ q._active = NaN; // allow notification
+ maybeNotify(q);
+}
+
+function maybeNotify(q) {
+ if (!q._active && q._call) {
+ var d = q._data;
+ q._data = undefined; // allow gc
+ q._call(q._error, d);
+ }
+}
+
+function queue(concurrency) {
+ return new Queue(arguments.length ? +concurrency : Infinity);
+}
+
+var uniform = function(min, max) {
+ min = min == null ? 0 : +min;
+ max = max == null ? 1 : +max;
+ if (arguments.length === 1) max = min, min = 0;
+ else max -= min;
+ return function() {
+ return Math.random() * max + min;
+ };
+};
+
+var normal = function(mu, sigma) {
+ var x, r;
+ mu = mu == null ? 0 : +mu;
+ sigma = sigma == null ? 1 : +sigma;
+ return function() {
+ var y;
+
+ // If available, use the second previously-generated uniform random.
+ if (x != null) y = x, x = null;
+
+ // Otherwise, generate a new x and y.
+ else do {
+ x = Math.random() * 2 - 1;
+ y = Math.random() * 2 - 1;
+ r = x * x + y * y;
+ } while (!r || r > 1);
+
+ return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r);
+ };
+};
+
+var logNormal = function() {
+ var randomNormal = normal.apply(this, arguments);
+ return function() {
+ return Math.exp(randomNormal());
+ };
+};
+
+var irwinHall = function(n) {
+ return function() {
+ for (var sum = 0, i = 0; i < n; ++i) sum += Math.random();
+ return sum;
+ };
+};
+
+var bates = function(n) {
+ var randomIrwinHall = irwinHall(n);
+ return function() {
+ return randomIrwinHall() / n;
+ };
+};
+
+var exponential$1 = function(lambda) {
+ return function() {
+ return -Math.log(1 - Math.random()) / lambda;
+ };
+};
+
+var request = function(url, callback) {
+ var request,
+ event = dispatch("beforesend", "progress", "load", "error"),
+ mimeType,
+ headers = map$1(),
+ xhr = new XMLHttpRequest,
+ user = null,
+ password = null,
+ response,
+ responseType,
+ timeout = 0;
+
+ // If IE does not support CORS, use XDomainRequest.
+ if (typeof XDomainRequest !== "undefined"
+ && !("withCredentials" in xhr)
+ && /^(http(s)?:)?\/\//.test(url)) xhr = new XDomainRequest;
+
+ "onload" in xhr
+ ? xhr.onload = xhr.onerror = xhr.ontimeout = respond
+ : xhr.onreadystatechange = function(o) { xhr.readyState > 3 && respond(o); };
+
+ function respond(o) {
+ var status = xhr.status, result;
+ if (!status && hasResponse(xhr)
+ || status >= 200 && status < 300
+ || status === 304) {
+ if (response) {
+ try {
+ result = response.call(request, xhr);
+ } catch (e) {
+ event.call("error", request, e);
+ return;
+ }
+ } else {
+ result = xhr;
+ }
+ event.call("load", request, result);
+ } else {
+ event.call("error", request, o);
+ }
+ }
+
+ xhr.onprogress = function(e) {
+ event.call("progress", request, e);
+ };
+
+ request = {
+ header: function(name, value) {
+ name = (name + "").toLowerCase();
+ if (arguments.length < 2) return headers.get(name);
+ if (value == null) headers.remove(name);
+ else headers.set(name, value + "");
+ return request;
+ },
+
+ // If mimeType is non-null and no Accept header is set, a default is used.
+ mimeType: function(value) {
+ if (!arguments.length) return mimeType;
+ mimeType = value == null ? null : value + "";
+ return request;
+ },
+
+ // Specifies what type the response value should take;
+ // for instance, arraybuffer, blob, document, or text.
+ responseType: function(value) {
+ if (!arguments.length) return responseType;
+ responseType = value;
+ return request;
+ },
+
+ timeout: function(value) {
+ if (!arguments.length) return timeout;
+ timeout = +value;
+ return request;
+ },
+
+ user: function(value) {
+ return arguments.length < 1 ? user : (user = value == null ? null : value + "", request);
+ },
+
+ password: function(value) {
+ return arguments.length < 1 ? password : (password = value == null ? null : value + "", request);
+ },
+
+ // Specify how to convert the response content to a specific type;
+ // changes the callback value on "load" events.
+ response: function(value) {
+ response = value;
+ return request;
+ },
+
+ // Alias for send("GET", …).
+ get: function(data, callback) {
+ return request.send("GET", data, callback);
+ },
+
+ // Alias for send("POST", …).
+ post: function(data, callback) {
+ return request.send("POST", data, callback);
+ },
+
+ // If callback is non-null, it will be used for error and load events.
+ send: function(method, data, callback) {
+ xhr.open(method, url, true, user, password);
+ if (mimeType != null && !headers.has("accept")) headers.set("accept", mimeType + ",*/*");
+ if (xhr.setRequestHeader) headers.each(function(value, name) { xhr.setRequestHeader(name, value); });
+ if (mimeType != null && xhr.overrideMimeType) xhr.overrideMimeType(mimeType);
+ if (responseType != null) xhr.responseType = responseType;
+ if (timeout > 0) xhr.timeout = timeout;
+ if (callback == null && typeof data === "function") callback = data, data = null;
+ if (callback != null && callback.length === 1) callback = fixCallback(callback);
+ if (callback != null) request.on("error", callback).on("load", function(xhr) { callback(null, xhr); });
+ event.call("beforesend", request, xhr);
+ xhr.send(data == null ? null : data);
+ return request;
+ },
+
+ abort: function() {
+ xhr.abort();
+ return request;
+ },
+
+ on: function() {
+ var value = event.on.apply(event, arguments);
+ return value === event ? request : value;
+ }
+ };
+
+ if (callback != null) {
+ if (typeof callback !== "function") throw new Error("invalid callback: " + callback);
+ return request.get(callback);
+ }
+
+ return request;
+};
+
+function fixCallback(callback) {
+ return function(error, xhr) {
+ callback(error == null ? xhr : null);
+ };
+}
+
+function hasResponse(xhr) {
+ var type = xhr.responseType;
+ return type && type !== "text"
+ ? xhr.response // null on error
+ : xhr.responseText; // "" on error
+}
+
+var type$1 = function(defaultMimeType, response) {
+ return function(url, callback) {
+ var r = request(url).mimeType(defaultMimeType).response(response);
+ if (callback != null) {
+ if (typeof callback !== "function") throw new Error("invalid callback: " + callback);
+ return r.get(callback);
+ }
+ return r;
+ };
+};
+
+var html = type$1("text/html", function(xhr) {
+ return document.createRange().createContextualFragment(xhr.responseText);
+});
+
+var json = type$1("application/json", function(xhr) {
+ return JSON.parse(xhr.responseText);
+});
+
+var text = type$1("text/plain", function(xhr) {
+ return xhr.responseText;
+});
+
+var xml = type$1("application/xml", function(xhr) {
+ var xml = xhr.responseXML;
+ if (!xml) throw new Error("parse error");
+ return xml;
+});
+
+var dsv$1 = function(defaultMimeType, parse) {
+ return function(url, row, callback) {
+ if (arguments.length < 3) callback = row, row = null;
+ var r = request(url).mimeType(defaultMimeType);
+ r.row = function(_) { return arguments.length ? r.response(responseOf(parse, row = _)) : row; };
+ r.row(row);
+ return callback ? r.get(callback) : r;
+ };
+};
+
+function responseOf(parse, row) {
+ return function(request$$1) {
+ return parse(request$$1.responseText, row);
+ };
+}
+
+var csv$1 = dsv$1("text/csv", csvParse);
+
+var tsv$1 = dsv$1("text/tab-separated-values", tsvParse);
+
+var array$2 = Array.prototype;
+
+var map$3 = array$2.map;
+var slice$4 = array$2.slice;
+
+var implicit = {name: "implicit"};
+
+function ordinal(range) {
+ var index = map$1(),
+ domain = [],
+ unknown = implicit;
+
+ range = range == null ? [] : slice$4.call(range);
+
+ function scale(d) {
+ var key = d + "", i = index.get(key);
+ if (!i) {
+ if (unknown !== implicit) return unknown;
+ index.set(key, i = domain.push(d));
+ }
+ return range[(i - 1) % range.length];
+ }
+
+ scale.domain = function(_) {
+ if (!arguments.length) return domain.slice();
+ domain = [], index = map$1();
+ var i = -1, n = _.length, d, key;
+ while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d));
+ return scale;
+ };
+
+ scale.range = function(_) {
+ return arguments.length ? (range = slice$4.call(_), scale) : range.slice();
+ };
+
+ scale.unknown = function(_) {
+ return arguments.length ? (unknown = _, scale) : unknown;
+ };
+
+ scale.copy = function() {
+ return ordinal()
+ .domain(domain)
+ .range(range)
+ .unknown(unknown);
+ };
+
+ return scale;
+}
+
+function band() {
+ var scale = ordinal().unknown(undefined),
+ domain = scale.domain,
+ ordinalRange = scale.range,
+ range$$1 = [0, 1],
+ step,
+ bandwidth,
+ round = false,
+ paddingInner = 0,
+ paddingOuter = 0,
+ align = 0.5;
+
+ delete scale.unknown;
+
+ function rescale() {
+ var n = domain().length,
+ reverse = range$$1[1] < range$$1[0],
+ start = range$$1[reverse - 0],
+ stop = range$$1[1 - reverse];
+ step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2);
+ if (round) step = Math.floor(step);
+ start += (stop - start - step * (n - paddingInner)) * align;
+ bandwidth = step * (1 - paddingInner);
+ if (round) start = Math.round(start), bandwidth = Math.round(bandwidth);
+ var values = sequence(n).map(function(i) { return start + step * i; });
+ return ordinalRange(reverse ? values.reverse() : values);
+ }
+
+ scale.domain = function(_) {
+ return arguments.length ? (domain(_), rescale()) : domain();
+ };
+
+ scale.range = function(_) {
+ return arguments.length ? (range$$1 = [+_[0], +_[1]], rescale()) : range$$1.slice();
+ };
+
+ scale.rangeRound = function(_) {
+ return range$$1 = [+_[0], +_[1]], round = true, rescale();
+ };
+
+ scale.bandwidth = function() {
+ return bandwidth;
+ };
+
+ scale.step = function() {
+ return step;
+ };
+
+ scale.round = function(_) {
+ return arguments.length ? (round = !!_, rescale()) : round;
+ };
+
+ scale.padding = function(_) {
+ return arguments.length ? (paddingInner = paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingInner;
+ };
+
+ scale.paddingInner = function(_) {
+ return arguments.length ? (paddingInner = Math.max(0, Math.min(1, _)), rescale()) : paddingInner;
+ };
+
+ scale.paddingOuter = function(_) {
+ return arguments.length ? (paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingOuter;
+ };
+
+ scale.align = function(_) {
+ return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align;
+ };
+
+ scale.copy = function() {
+ return band()
+ .domain(domain())
+ .range(range$$1)
+ .round(round)
+ .paddingInner(paddingInner)
+ .paddingOuter(paddingOuter)
+ .align(align);
+ };
+
+ return rescale();
+}
+
+function pointish(scale) {
+ var copy = scale.copy;
+
+ scale.padding = scale.paddingOuter;
+ delete scale.paddingInner;
+ delete scale.paddingOuter;
+
+ scale.copy = function() {
+ return pointish(copy());
+ };
+
+ return scale;
+}
+
+function point$1() {
+ return pointish(band().paddingInner(1));
+}
+
+var constant$9 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+var number$1 = function(x) {
+ return +x;
+};
+
+var unit = [0, 1];
+
+function deinterpolateLinear(a, b) {
+ return (b -= (a = +a))
+ ? function(x) { return (x - a) / b; }
+ : constant$9(b);
+}
+
+function deinterpolateClamp(deinterpolate) {
+ return function(a, b) {
+ var d = deinterpolate(a = +a, b = +b);
+ return function(x) { return x <= a ? 0 : x >= b ? 1 : d(x); };
+ };
+}
+
+function reinterpolateClamp(reinterpolate) {
+ return function(a, b) {
+ var r = reinterpolate(a = +a, b = +b);
+ return function(t) { return t <= 0 ? a : t >= 1 ? b : r(t); };
+ };
+}
+
+function bimap(domain, range$$1, deinterpolate, reinterpolate) {
+ var d0 = domain[0], d1 = domain[1], r0 = range$$1[0], r1 = range$$1[1];
+ if (d1 < d0) d0 = deinterpolate(d1, d0), r0 = reinterpolate(r1, r0);
+ else d0 = deinterpolate(d0, d1), r0 = reinterpolate(r0, r1);
+ return function(x) { return r0(d0(x)); };
+}
+
+function polymap(domain, range$$1, deinterpolate, reinterpolate) {
+ var j = Math.min(domain.length, range$$1.length) - 1,
+ d = new Array(j),
+ r = new Array(j),
+ i = -1;
+
+ // Reverse descending domains.
+ if (domain[j] < domain[0]) {
+ domain = domain.slice().reverse();
+ range$$1 = range$$1.slice().reverse();
+ }
+
+ while (++i < j) {
+ d[i] = deinterpolate(domain[i], domain[i + 1]);
+ r[i] = reinterpolate(range$$1[i], range$$1[i + 1]);
+ }
+
+ return function(x) {
+ var i = bisectRight(domain, x, 1, j) - 1;
+ return r[i](d[i](x));
+ };
+}
+
+function copy(source, target) {
+ return target
+ .domain(source.domain())
+ .range(source.range())
+ .interpolate(source.interpolate())
+ .clamp(source.clamp());
+}
+
+// deinterpolate(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].
+// reinterpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding domain value x in [a,b].
+function continuous(deinterpolate, reinterpolate) {
+ var domain = unit,
+ range$$1 = unit,
+ interpolate$$1 = interpolateValue,
+ clamp = false,
+ piecewise,
+ output,
+ input;
+
+ function rescale() {
+ piecewise = Math.min(domain.length, range$$1.length) > 2 ? polymap : bimap;
+ output = input = null;
+ return scale;
+ }
+
+ function scale(x) {
+ return (output || (output = piecewise(domain, range$$1, clamp ? deinterpolateClamp(deinterpolate) : deinterpolate, interpolate$$1)))(+x);
+ }
+
+ scale.invert = function(y) {
+ return (input || (input = piecewise(range$$1, domain, deinterpolateLinear, clamp ? reinterpolateClamp(reinterpolate) : reinterpolate)))(+y);
+ };
+
+ scale.domain = function(_) {
+ return arguments.length ? (domain = map$3.call(_, number$1), rescale()) : domain.slice();
+ };
+
+ scale.range = function(_) {
+ return arguments.length ? (range$$1 = slice$4.call(_), rescale()) : range$$1.slice();
+ };
+
+ scale.rangeRound = function(_) {
+ return range$$1 = slice$4.call(_), interpolate$$1 = interpolateRound, rescale();
+ };
+
+ scale.clamp = function(_) {
+ return arguments.length ? (clamp = !!_, rescale()) : clamp;
+ };
+
+ scale.interpolate = function(_) {
+ return arguments.length ? (interpolate$$1 = _, rescale()) : interpolate$$1;
+ };
+
+ return rescale();
+}
+
+var tickFormat = function(domain, count, specifier) {
+ var start = domain[0],
+ stop = domain[domain.length - 1],
+ step = tickStep(start, stop, count == null ? 10 : count),
+ precision;
+ specifier = formatSpecifier(specifier == null ? ",f" : specifier);
+ switch (specifier.type) {
+ case "s": {
+ var value = Math.max(Math.abs(start), Math.abs(stop));
+ if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;
+ return exports.formatPrefix(specifier, value);
+ }
+ case "":
+ case "e":
+ case "g":
+ case "p":
+ case "r": {
+ if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");
+ break;
+ }
+ case "f":
+ case "%": {
+ if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;
+ break;
+ }
+ }
+ return exports.format(specifier);
+};
+
+function linearish(scale) {
+ var domain = scale.domain;
+
+ scale.ticks = function(count) {
+ var d = domain();
+ return ticks(d[0], d[d.length - 1], count == null ? 10 : count);
+ };
+
+ scale.tickFormat = function(count, specifier) {
+ return tickFormat(domain(), count, specifier);
+ };
+
+ scale.nice = function(count) {
+ var d = domain(),
+ i = d.length - 1,
+ n = count == null ? 10 : count,
+ start = d[0],
+ stop = d[i],
+ step = tickStep(start, stop, n);
+
+ if (step) {
+ step = tickStep(Math.floor(start / step) * step, Math.ceil(stop / step) * step, n);
+ d[0] = Math.floor(start / step) * step;
+ d[i] = Math.ceil(stop / step) * step;
+ domain(d);
+ }
+
+ return scale;
+ };
+
+ return scale;
+}
+
+function linear$2() {
+ var scale = continuous(deinterpolateLinear, reinterpolate);
+
+ scale.copy = function() {
+ return copy(scale, linear$2());
+ };
+
+ return linearish(scale);
+}
+
+function identity$6() {
+ var domain = [0, 1];
+
+ function scale(x) {
+ return +x;
+ }
+
+ scale.invert = scale;
+
+ scale.domain = scale.range = function(_) {
+ return arguments.length ? (domain = map$3.call(_, number$1), scale) : domain.slice();
+ };
+
+ scale.copy = function() {
+ return identity$6().domain(domain);
+ };
+
+ return linearish(scale);
+}
+
+var nice = function(domain, interval) {
+ domain = domain.slice();
+
+ var i0 = 0,
+ i1 = domain.length - 1,
+ x0 = domain[i0],
+ x1 = domain[i1],
+ t;
+
+ if (x1 < x0) {
+ t = i0, i0 = i1, i1 = t;
+ t = x0, x0 = x1, x1 = t;
+ }
+
+ domain[i0] = interval.floor(x0);
+ domain[i1] = interval.ceil(x1);
+ return domain;
+};
+
+function deinterpolate(a, b) {
+ return (b = Math.log(b / a))
+ ? function(x) { return Math.log(x / a) / b; }
+ : constant$9(b);
+}
+
+function reinterpolate$1(a, b) {
+ return a < 0
+ ? function(t) { return -Math.pow(-b, t) * Math.pow(-a, 1 - t); }
+ : function(t) { return Math.pow(b, t) * Math.pow(a, 1 - t); };
+}
+
+function pow10(x) {
+ return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x;
+}
+
+function powp(base) {
+ return base === 10 ? pow10
+ : base === Math.E ? Math.exp
+ : function(x) { return Math.pow(base, x); };
+}
+
+function logp(base) {
+ return base === Math.E ? Math.log
+ : base === 10 && Math.log10
+ || base === 2 && Math.log2
+ || (base = Math.log(base), function(x) { return Math.log(x) / base; });
+}
+
+function reflect(f) {
+ return function(x) {
+ return -f(-x);
+ };
+}
+
+function log$1() {
+ var scale = continuous(deinterpolate, reinterpolate$1).domain([1, 10]),
+ domain = scale.domain,
+ base = 10,
+ logs = logp(10),
+ pows = powp(10);
+
+ function rescale() {
+ logs = logp(base), pows = powp(base);
+ if (domain()[0] < 0) logs = reflect(logs), pows = reflect(pows);
+ return scale;
+ }
+
+ scale.base = function(_) {
+ return arguments.length ? (base = +_, rescale()) : base;
+ };
+
+ scale.domain = function(_) {
+ return arguments.length ? (domain(_), rescale()) : domain();
+ };
+
+ scale.ticks = function(count) {
+ var d = domain(),
+ u = d[0],
+ v = d[d.length - 1],
+ r;
+
+ if (r = v < u) i = u, u = v, v = i;
+
+ var i = logs(u),
+ j = logs(v),
+ p,
+ k,
+ t,
+ n = count == null ? 10 : +count,
+ z = [];
+
+ if (!(base % 1) && j - i < n) {
+ i = Math.round(i) - 1, j = Math.round(j) + 1;
+ if (u > 0) for (; i < j; ++i) {
+ for (k = 1, p = pows(i); k < base; ++k) {
+ t = p * k;
+ if (t < u) continue;
+ if (t > v) break;
+ z.push(t);
+ }
+ } else for (; i < j; ++i) {
+ for (k = base - 1, p = pows(i); k >= 1; --k) {
+ t = p * k;
+ if (t < u) continue;
+ if (t > v) break;
+ z.push(t);
+ }
+ }
+ } else {
+ z = ticks(i, j, Math.min(j - i, n)).map(pows);
+ }
+
+ return r ? z.reverse() : z;
+ };
+
+ scale.tickFormat = function(count, specifier) {
+ if (specifier == null) specifier = base === 10 ? ".0e" : ",";
+ if (typeof specifier !== "function") specifier = exports.format(specifier);
+ if (count === Infinity) return specifier;
+ if (count == null) count = 10;
+ var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate?
+ return function(d) {
+ var i = d / pows(Math.round(logs(d)));
+ if (i * base < base - 0.5) i *= base;
+ return i <= k ? specifier(d) : "";
+ };
+ };
+
+ scale.nice = function() {
+ return domain(nice(domain(), {
+ floor: function(x) { return pows(Math.floor(logs(x))); },
+ ceil: function(x) { return pows(Math.ceil(logs(x))); }
+ }));
+ };
+
+ scale.copy = function() {
+ return copy(scale, log$1().base(base));
+ };
+
+ return scale;
+}
+
+function raise$1(x, exponent) {
+ return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);
+}
+
+function pow$1() {
+ var exponent = 1,
+ scale = continuous(deinterpolate, reinterpolate),
+ domain = scale.domain;
+
+ function deinterpolate(a, b) {
+ return (b = raise$1(b, exponent) - (a = raise$1(a, exponent)))
+ ? function(x) { return (raise$1(x, exponent) - a) / b; }
+ : constant$9(b);
+ }
+
+ function reinterpolate(a, b) {
+ b = raise$1(b, exponent) - (a = raise$1(a, exponent));
+ return function(t) { return raise$1(a + b * t, 1 / exponent); };
+ }
+
+ scale.exponent = function(_) {
+ return arguments.length ? (exponent = +_, domain(domain())) : exponent;
+ };
+
+ scale.copy = function() {
+ return copy(scale, pow$1().exponent(exponent));
+ };
+
+ return linearish(scale);
+}
+
+function sqrt$1() {
+ return pow$1().exponent(0.5);
+}
+
+function quantile$$1() {
+ var domain = [],
+ range$$1 = [],
+ thresholds = [];
+
+ function rescale() {
+ var i = 0, n = Math.max(1, range$$1.length);
+ thresholds = new Array(n - 1);
+ while (++i < n) thresholds[i - 1] = threshold(domain, i / n);
+ return scale;
+ }
+
+ function scale(x) {
+ if (!isNaN(x = +x)) return range$$1[bisectRight(thresholds, x)];
+ }
+
+ scale.invertExtent = function(y) {
+ var i = range$$1.indexOf(y);
+ return i < 0 ? [NaN, NaN] : [
+ i > 0 ? thresholds[i - 1] : domain[0],
+ i < thresholds.length ? thresholds[i] : domain[domain.length - 1]
+ ];
+ };
+
+ scale.domain = function(_) {
+ if (!arguments.length) return domain.slice();
+ domain = [];
+ for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d);
+ domain.sort(ascending);
+ return rescale();
+ };
+
+ scale.range = function(_) {
+ return arguments.length ? (range$$1 = slice$4.call(_), rescale()) : range$$1.slice();
+ };
+
+ scale.quantiles = function() {
+ return thresholds.slice();
+ };
+
+ scale.copy = function() {
+ return quantile$$1()
+ .domain(domain)
+ .range(range$$1);
+ };
+
+ return scale;
+}
+
+function quantize$1() {
+ var x0 = 0,
+ x1 = 1,
+ n = 1,
+ domain = [0.5],
+ range$$1 = [0, 1];
+
+ function scale(x) {
+ if (x <= x) return range$$1[bisectRight(domain, x, 0, n)];
+ }
+
+ function rescale() {
+ var i = -1;
+ domain = new Array(n);
+ while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1);
+ return scale;
+ }
+
+ scale.domain = function(_) {
+ return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1];
+ };
+
+ scale.range = function(_) {
+ return arguments.length ? (n = (range$$1 = slice$4.call(_)).length - 1, rescale()) : range$$1.slice();
+ };
+
+ scale.invertExtent = function(y) {
+ var i = range$$1.indexOf(y);
+ return i < 0 ? [NaN, NaN]
+ : i < 1 ? [x0, domain[0]]
+ : i >= n ? [domain[n - 1], x1]
+ : [domain[i - 1], domain[i]];
+ };
+
+ scale.copy = function() {
+ return quantize$1()
+ .domain([x0, x1])
+ .range(range$$1);
+ };
+
+ return linearish(scale);
+}
+
+function threshold$1() {
+ var domain = [0.5],
+ range$$1 = [0, 1],
+ n = 1;
+
+ function scale(x) {
+ if (x <= x) return range$$1[bisectRight(domain, x, 0, n)];
+ }
+
+ scale.domain = function(_) {
+ return arguments.length ? (domain = slice$4.call(_), n = Math.min(domain.length, range$$1.length - 1), scale) : domain.slice();
+ };
+
+ scale.range = function(_) {
+ return arguments.length ? (range$$1 = slice$4.call(_), n = Math.min(domain.length, range$$1.length - 1), scale) : range$$1.slice();
+ };
+
+ scale.invertExtent = function(y) {
+ var i = range$$1.indexOf(y);
+ return [domain[i - 1], domain[i]];
+ };
+
+ scale.copy = function() {
+ return threshold$1()
+ .domain(domain)
+ .range(range$$1);
+ };
+
+ return scale;
+}
+
+var t0$1 = new Date;
+var t1$1 = new Date;
+
+function newInterval(floori, offseti, count, field) {
+
+ function interval(date) {
+ return floori(date = new Date(+date)), date;
+ }
+
+ interval.floor = interval;
+
+ interval.ceil = function(date) {
+ return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date;
+ };
+
+ interval.round = function(date) {
+ var d0 = interval(date),
+ d1 = interval.ceil(date);
+ return date - d0 < d1 - date ? d0 : d1;
+ };
+
+ interval.offset = function(date, step) {
+ return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date;
+ };
+
+ interval.range = function(start, stop, step) {
+ var range = [];
+ start = interval.ceil(start);
+ step = step == null ? 1 : Math.floor(step);
+ if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date
+ do range.push(new Date(+start)); while (offseti(start, step), floori(start), start < stop)
+ return range;
+ };
+
+ interval.filter = function(test) {
+ return newInterval(function(date) {
+ if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1);
+ }, function(date, step) {
+ if (date >= date) while (--step >= 0) while (offseti(date, 1), !test(date)) {} // eslint-disable-line no-empty
+ });
+ };
+
+ if (count) {
+ interval.count = function(start, end) {
+ t0$1.setTime(+start), t1$1.setTime(+end);
+ floori(t0$1), floori(t1$1);
+ return Math.floor(count(t0$1, t1$1));
+ };
+
+ interval.every = function(step) {
+ step = Math.floor(step);
+ return !isFinite(step) || !(step > 0) ? null
+ : !(step > 1) ? interval
+ : interval.filter(field
+ ? function(d) { return field(d) % step === 0; }
+ : function(d) { return interval.count(0, d) % step === 0; });
+ };
+ }
+
+ return interval;
+}
+
+var millisecond = newInterval(function() {
+ // noop
+}, function(date, step) {
+ date.setTime(+date + step);
+}, function(start, end) {
+ return end - start;
+});
+
+// An optimized implementation for this simple case.
+millisecond.every = function(k) {
+ k = Math.floor(k);
+ if (!isFinite(k) || !(k > 0)) return null;
+ if (!(k > 1)) return millisecond;
+ return newInterval(function(date) {
+ date.setTime(Math.floor(date / k) * k);
+ }, function(date, step) {
+ date.setTime(+date + step * k);
+ }, function(start, end) {
+ return (end - start) / k;
+ });
+};
+
+var milliseconds = millisecond.range;
+
+var durationSecond$1 = 1e3;
+var durationMinute$1 = 6e4;
+var durationHour$1 = 36e5;
+var durationDay$1 = 864e5;
+var durationWeek$1 = 6048e5;
+
+var second = newInterval(function(date) {
+ date.setTime(Math.floor(date / durationSecond$1) * durationSecond$1);
+}, function(date, step) {
+ date.setTime(+date + step * durationSecond$1);
+}, function(start, end) {
+ return (end - start) / durationSecond$1;
+}, function(date) {
+ return date.getUTCSeconds();
+});
+
+var seconds = second.range;
+
+var minute = newInterval(function(date) {
+ date.setTime(Math.floor(date / durationMinute$1) * durationMinute$1);
+}, function(date, step) {
+ date.setTime(+date + step * durationMinute$1);
+}, function(start, end) {
+ return (end - start) / durationMinute$1;
+}, function(date) {
+ return date.getMinutes();
+});
+
+var minutes = minute.range;
+
+var hour = newInterval(function(date) {
+ var offset = date.getTimezoneOffset() * durationMinute$1 % durationHour$1;
+ if (offset < 0) offset += durationHour$1;
+ date.setTime(Math.floor((+date - offset) / durationHour$1) * durationHour$1 + offset);
+}, function(date, step) {
+ date.setTime(+date + step * durationHour$1);
+}, function(start, end) {
+ return (end - start) / durationHour$1;
+}, function(date) {
+ return date.getHours();
+});
+
+var hours = hour.range;
+
+var day = newInterval(function(date) {
+ date.setHours(0, 0, 0, 0);
+}, function(date, step) {
+ date.setDate(date.getDate() + step);
+}, function(start, end) {
+ return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute$1) / durationDay$1;
+}, function(date) {
+ return date.getDate() - 1;
+});
+
+var days = day.range;
+
+function weekday(i) {
+ return newInterval(function(date) {
+ date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7);
+ date.setHours(0, 0, 0, 0);
+ }, function(date, step) {
+ date.setDate(date.getDate() + step * 7);
+ }, function(start, end) {
+ return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute$1) / durationWeek$1;
+ });
+}
+
+var sunday = weekday(0);
+var monday = weekday(1);
+var tuesday = weekday(2);
+var wednesday = weekday(3);
+var thursday = weekday(4);
+var friday = weekday(5);
+var saturday = weekday(6);
+
+var sundays = sunday.range;
+var mondays = monday.range;
+var tuesdays = tuesday.range;
+var wednesdays = wednesday.range;
+var thursdays = thursday.range;
+var fridays = friday.range;
+var saturdays = saturday.range;
+
+var month = newInterval(function(date) {
+ date.setDate(1);
+ date.setHours(0, 0, 0, 0);
+}, function(date, step) {
+ date.setMonth(date.getMonth() + step);
+}, function(start, end) {
+ return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12;
+}, function(date) {
+ return date.getMonth();
+});
+
+var months = month.range;
+
+var year = newInterval(function(date) {
+ date.setMonth(0, 1);
+ date.setHours(0, 0, 0, 0);
+}, function(date, step) {
+ date.setFullYear(date.getFullYear() + step);
+}, function(start, end) {
+ return end.getFullYear() - start.getFullYear();
+}, function(date) {
+ return date.getFullYear();
+});
+
+// An optimized implementation for this simple case.
+year.every = function(k) {
+ return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) {
+ date.setFullYear(Math.floor(date.getFullYear() / k) * k);
+ date.setMonth(0, 1);
+ date.setHours(0, 0, 0, 0);
+ }, function(date, step) {
+ date.setFullYear(date.getFullYear() + step * k);
+ });
+};
+
+var years = year.range;
+
+var utcMinute = newInterval(function(date) {
+ date.setUTCSeconds(0, 0);
+}, function(date, step) {
+ date.setTime(+date + step * durationMinute$1);
+}, function(start, end) {
+ return (end - start) / durationMinute$1;
+}, function(date) {
+ return date.getUTCMinutes();
+});
+
+var utcMinutes = utcMinute.range;
+
+var utcHour = newInterval(function(date) {
+ date.setUTCMinutes(0, 0, 0);
+}, function(date, step) {
+ date.setTime(+date + step * durationHour$1);
+}, function(start, end) {
+ return (end - start) / durationHour$1;
+}, function(date) {
+ return date.getUTCHours();
+});
+
+var utcHours = utcHour.range;
+
+var utcDay = newInterval(function(date) {
+ date.setUTCHours(0, 0, 0, 0);
+}, function(date, step) {
+ date.setUTCDate(date.getUTCDate() + step);
+}, function(start, end) {
+ return (end - start) / durationDay$1;
+}, function(date) {
+ return date.getUTCDate() - 1;
+});
+
+var utcDays = utcDay.range;
+
+function utcWeekday(i) {
+ return newInterval(function(date) {
+ date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7);
+ date.setUTCHours(0, 0, 0, 0);
+ }, function(date, step) {
+ date.setUTCDate(date.getUTCDate() + step * 7);
+ }, function(start, end) {
+ return (end - start) / durationWeek$1;
+ });
+}
+
+var utcSunday = utcWeekday(0);
+var utcMonday = utcWeekday(1);
+var utcTuesday = utcWeekday(2);
+var utcWednesday = utcWeekday(3);
+var utcThursday = utcWeekday(4);
+var utcFriday = utcWeekday(5);
+var utcSaturday = utcWeekday(6);
+
+var utcSundays = utcSunday.range;
+var utcMondays = utcMonday.range;
+var utcTuesdays = utcTuesday.range;
+var utcWednesdays = utcWednesday.range;
+var utcThursdays = utcThursday.range;
+var utcFridays = utcFriday.range;
+var utcSaturdays = utcSaturday.range;
+
+var utcMonth = newInterval(function(date) {
+ date.setUTCDate(1);
+ date.setUTCHours(0, 0, 0, 0);
+}, function(date, step) {
+ date.setUTCMonth(date.getUTCMonth() + step);
+}, function(start, end) {
+ return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12;
+}, function(date) {
+ return date.getUTCMonth();
+});
+
+var utcMonths = utcMonth.range;
+
+var utcYear = newInterval(function(date) {
+ date.setUTCMonth(0, 1);
+ date.setUTCHours(0, 0, 0, 0);
+}, function(date, step) {
+ date.setUTCFullYear(date.getUTCFullYear() + step);
+}, function(start, end) {
+ return end.getUTCFullYear() - start.getUTCFullYear();
+}, function(date) {
+ return date.getUTCFullYear();
+});
+
+// An optimized implementation for this simple case.
+utcYear.every = function(k) {
+ return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) {
+ date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);
+ date.setUTCMonth(0, 1);
+ date.setUTCHours(0, 0, 0, 0);
+ }, function(date, step) {
+ date.setUTCFullYear(date.getUTCFullYear() + step * k);
+ });
+};
+
+var utcYears = utcYear.range;
+
+function localDate(d) {
+ if (0 <= d.y && d.y < 100) {
+ var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L);
+ date.setFullYear(d.y);
+ return date;
+ }
+ return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L);
+}
+
+function utcDate(d) {
+ if (0 <= d.y && d.y < 100) {
+ var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L));
+ date.setUTCFullYear(d.y);
+ return date;
+ }
+ return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L));
+}
+
+function newYear(y) {
+ return {y: y, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0};
+}
+
+function formatLocale$1(locale) {
+ var locale_dateTime = locale.dateTime,
+ locale_date = locale.date,
+ locale_time = locale.time,
+ locale_periods = locale.periods,
+ locale_weekdays = locale.days,
+ locale_shortWeekdays = locale.shortDays,
+ locale_months = locale.months,
+ locale_shortMonths = locale.shortMonths;
+
+ var periodRe = formatRe(locale_periods),
+ periodLookup = formatLookup(locale_periods),
+ weekdayRe = formatRe(locale_weekdays),
+ weekdayLookup = formatLookup(locale_weekdays),
+ shortWeekdayRe = formatRe(locale_shortWeekdays),
+ shortWeekdayLookup = formatLookup(locale_shortWeekdays),
+ monthRe = formatRe(locale_months),
+ monthLookup = formatLookup(locale_months),
+ shortMonthRe = formatRe(locale_shortMonths),
+ shortMonthLookup = formatLookup(locale_shortMonths);
+
+ var formats = {
+ "a": formatShortWeekday,
+ "A": formatWeekday,
+ "b": formatShortMonth,
+ "B": formatMonth,
+ "c": null,
+ "d": formatDayOfMonth,
+ "e": formatDayOfMonth,
+ "H": formatHour24,
+ "I": formatHour12,
+ "j": formatDayOfYear,
+ "L": formatMilliseconds,
+ "m": formatMonthNumber,
+ "M": formatMinutes,
+ "p": formatPeriod,
+ "S": formatSeconds,
+ "U": formatWeekNumberSunday,
+ "w": formatWeekdayNumber,
+ "W": formatWeekNumberMonday,
+ "x": null,
+ "X": null,
+ "y": formatYear,
+ "Y": formatFullYear,
+ "Z": formatZone,
+ "%": formatLiteralPercent
+ };
+
+ var utcFormats = {
+ "a": formatUTCShortWeekday,
+ "A": formatUTCWeekday,
+ "b": formatUTCShortMonth,
+ "B": formatUTCMonth,
+ "c": null,
+ "d": formatUTCDayOfMonth,
+ "e": formatUTCDayOfMonth,
+ "H": formatUTCHour24,
+ "I": formatUTCHour12,
+ "j": formatUTCDayOfYear,
+ "L": formatUTCMilliseconds,
+ "m": formatUTCMonthNumber,
+ "M": formatUTCMinutes,
+ "p": formatUTCPeriod,
+ "S": formatUTCSeconds,
+ "U": formatUTCWeekNumberSunday,
+ "w": formatUTCWeekdayNumber,
+ "W": formatUTCWeekNumberMonday,
+ "x": null,
+ "X": null,
+ "y": formatUTCYear,
+ "Y": formatUTCFullYear,
+ "Z": formatUTCZone,
+ "%": formatLiteralPercent
+ };
+
+ var parses = {
+ "a": parseShortWeekday,
+ "A": parseWeekday,
+ "b": parseShortMonth,
+ "B": parseMonth,
+ "c": parseLocaleDateTime,
+ "d": parseDayOfMonth,
+ "e": parseDayOfMonth,
+ "H": parseHour24,
+ "I": parseHour24,
+ "j": parseDayOfYear,
+ "L": parseMilliseconds,
+ "m": parseMonthNumber,
+ "M": parseMinutes,
+ "p": parsePeriod,
+ "S": parseSeconds,
+ "U": parseWeekNumberSunday,
+ "w": parseWeekdayNumber,
+ "W": parseWeekNumberMonday,
+ "x": parseLocaleDate,
+ "X": parseLocaleTime,
+ "y": parseYear,
+ "Y": parseFullYear,
+ "Z": parseZone,
+ "%": parseLiteralPercent
+ };
+
+ // These recursive directive definitions must be deferred.
+ formats.x = newFormat(locale_date, formats);
+ formats.X = newFormat(locale_time, formats);
+ formats.c = newFormat(locale_dateTime, formats);
+ utcFormats.x = newFormat(locale_date, utcFormats);
+ utcFormats.X = newFormat(locale_time, utcFormats);
+ utcFormats.c = newFormat(locale_dateTime, utcFormats);
+
+ function newFormat(specifier, formats) {
+ return function(date) {
+ var string = [],
+ i = -1,
+ j = 0,
+ n = specifier.length,
+ c,
+ pad,
+ format;
+
+ if (!(date instanceof Date)) date = new Date(+date);
+
+ while (++i < n) {
+ if (specifier.charCodeAt(i) === 37) {
+ string.push(specifier.slice(j, i));
+ if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i);
+ else pad = c === "e" ? " " : "0";
+ if (format = formats[c]) c = format(date, pad);
+ string.push(c);
+ j = i + 1;
+ }
+ }
+
+ string.push(specifier.slice(j, i));
+ return string.join("");
+ };
+ }
+
+ function newParse(specifier, newDate) {
+ return function(string) {
+ var d = newYear(1900),
+ i = parseSpecifier(d, specifier, string += "", 0);
+ if (i != string.length) return null;
+
+ // The am-pm flag is 0 for AM, and 1 for PM.
+ if ("p" in d) d.H = d.H % 12 + d.p * 12;
+
+ // Convert day-of-week and week-of-year to day-of-year.
+ if ("W" in d || "U" in d) {
+ if (!("w" in d)) d.w = "W" in d ? 1 : 0;
+ var day$$1 = "Z" in d ? utcDate(newYear(d.y)).getUTCDay() : newDate(newYear(d.y)).getDay();
+ d.m = 0;
+ d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day$$1 + 5) % 7 : d.w + d.U * 7 - (day$$1 + 6) % 7;
+ }
+
+ // If a time zone is specified, all fields are interpreted as UTC and then
+ // offset according to the specified time zone.
+ if ("Z" in d) {
+ d.H += d.Z / 100 | 0;
+ d.M += d.Z % 100;
+ return utcDate(d);
+ }
+
+ // Otherwise, all fields are in local time.
+ return newDate(d);
+ };
+ }
+
+ function parseSpecifier(d, specifier, string, j) {
+ var i = 0,
+ n = specifier.length,
+ m = string.length,
+ c,
+ parse;
+
+ while (i < n) {
+ if (j >= m) return -1;
+ c = specifier.charCodeAt(i++);
+ if (c === 37) {
+ c = specifier.charAt(i++);
+ parse = parses[c in pads ? specifier.charAt(i++) : c];
+ if (!parse || ((j = parse(d, string, j)) < 0)) return -1;
+ } else if (c != string.charCodeAt(j++)) {
+ return -1;
+ }
+ }
+
+ return j;
+ }
+
+ function parsePeriod(d, string, i) {
+ var n = periodRe.exec(string.slice(i));
+ return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1;
+ }
+
+ function parseShortWeekday(d, string, i) {
+ var n = shortWeekdayRe.exec(string.slice(i));
+ return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;
+ }
+
+ function parseWeekday(d, string, i) {
+ var n = weekdayRe.exec(string.slice(i));
+ return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;
+ }
+
+ function parseShortMonth(d, string, i) {
+ var n = shortMonthRe.exec(string.slice(i));
+ return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1;
+ }
+
+ function parseMonth(d, string, i) {
+ var n = monthRe.exec(string.slice(i));
+ return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1;
+ }
+
+ function parseLocaleDateTime(d, string, i) {
+ return parseSpecifier(d, locale_dateTime, string, i);
+ }
+
+ function parseLocaleDate(d, string, i) {
+ return parseSpecifier(d, locale_date, string, i);
+ }
+
+ function parseLocaleTime(d, string, i) {
+ return parseSpecifier(d, locale_time, string, i);
+ }
+
+ function formatShortWeekday(d) {
+ return locale_shortWeekdays[d.getDay()];
+ }
+
+ function formatWeekday(d) {
+ return locale_weekdays[d.getDay()];
+ }
+
+ function formatShortMonth(d) {
+ return locale_shortMonths[d.getMonth()];
+ }
+
+ function formatMonth(d) {
+ return locale_months[d.getMonth()];
+ }
+
+ function formatPeriod(d) {
+ return locale_periods[+(d.getHours() >= 12)];
+ }
+
+ function formatUTCShortWeekday(d) {
+ return locale_shortWeekdays[d.getUTCDay()];
+ }
+
+ function formatUTCWeekday(d) {
+ return locale_weekdays[d.getUTCDay()];
+ }
+
+ function formatUTCShortMonth(d) {
+ return locale_shortMonths[d.getUTCMonth()];
+ }
+
+ function formatUTCMonth(d) {
+ return locale_months[d.getUTCMonth()];
+ }
+
+ function formatUTCPeriod(d) {
+ return locale_periods[+(d.getUTCHours() >= 12)];
+ }
+
+ return {
+ format: function(specifier) {
+ var f = newFormat(specifier += "", formats);
+ f.toString = function() { return specifier; };
+ return f;
+ },
+ parse: function(specifier) {
+ var p = newParse(specifier += "", localDate);
+ p.toString = function() { return specifier; };
+ return p;
+ },
+ utcFormat: function(specifier) {
+ var f = newFormat(specifier += "", utcFormats);
+ f.toString = function() { return specifier; };
+ return f;
+ },
+ utcParse: function(specifier) {
+ var p = newParse(specifier, utcDate);
+ p.toString = function() { return specifier; };
+ return p;
+ }
+ };
+}
+
+var pads = {"-": "", "_": " ", "0": "0"};
+var numberRe = /^\s*\d+/;
+var percentRe = /^%/;
+var requoteRe = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
+
+function pad(value, fill, width) {
+ var sign = value < 0 ? "-" : "",
+ string = (sign ? -value : value) + "",
+ length = string.length;
+ return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
+}
+
+function requote(s) {
+ return s.replace(requoteRe, "\\$&");
+}
+
+function formatRe(names) {
+ return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i");
+}
+
+function formatLookup(names) {
+ var map = {}, i = -1, n = names.length;
+ while (++i < n) map[names[i].toLowerCase()] = i;
+ return map;
+}
+
+function parseWeekdayNumber(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 1));
+ return n ? (d.w = +n[0], i + n[0].length) : -1;
+}
+
+function parseWeekNumberSunday(d, string, i) {
+ var n = numberRe.exec(string.slice(i));
+ return n ? (d.U = +n[0], i + n[0].length) : -1;
+}
+
+function parseWeekNumberMonday(d, string, i) {
+ var n = numberRe.exec(string.slice(i));
+ return n ? (d.W = +n[0], i + n[0].length) : -1;
+}
+
+function parseFullYear(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 4));
+ return n ? (d.y = +n[0], i + n[0].length) : -1;
+}
+
+function parseYear(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 2));
+ return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1;
+}
+
+function parseZone(d, string, i) {
+ var n = /^(Z)|([+-]\d\d)(?:\:?(\d\d))?/.exec(string.slice(i, i + 6));
+ return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1;
+}
+
+function parseMonthNumber(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 2));
+ return n ? (d.m = n[0] - 1, i + n[0].length) : -1;
+}
+
+function parseDayOfMonth(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 2));
+ return n ? (d.d = +n[0], i + n[0].length) : -1;
+}
+
+function parseDayOfYear(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 3));
+ return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1;
+}
+
+function parseHour24(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 2));
+ return n ? (d.H = +n[0], i + n[0].length) : -1;
+}
+
+function parseMinutes(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 2));
+ return n ? (d.M = +n[0], i + n[0].length) : -1;
+}
+
+function parseSeconds(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 2));
+ return n ? (d.S = +n[0], i + n[0].length) : -1;
+}
+
+function parseMilliseconds(d, string, i) {
+ var n = numberRe.exec(string.slice(i, i + 3));
+ return n ? (d.L = +n[0], i + n[0].length) : -1;
+}
+
+function parseLiteralPercent(d, string, i) {
+ var n = percentRe.exec(string.slice(i, i + 1));
+ return n ? i + n[0].length : -1;
+}
+
+function formatDayOfMonth(d, p) {
+ return pad(d.getDate(), p, 2);
+}
+
+function formatHour24(d, p) {
+ return pad(d.getHours(), p, 2);
+}
+
+function formatHour12(d, p) {
+ return pad(d.getHours() % 12 || 12, p, 2);
+}
+
+function formatDayOfYear(d, p) {
+ return pad(1 + day.count(year(d), d), p, 3);
+}
+
+function formatMilliseconds(d, p) {
+ return pad(d.getMilliseconds(), p, 3);
+}
+
+function formatMonthNumber(d, p) {
+ return pad(d.getMonth() + 1, p, 2);
+}
+
+function formatMinutes(d, p) {
+ return pad(d.getMinutes(), p, 2);
+}
+
+function formatSeconds(d, p) {
+ return pad(d.getSeconds(), p, 2);
+}
+
+function formatWeekNumberSunday(d, p) {
+ return pad(sunday.count(year(d), d), p, 2);
+}
+
+function formatWeekdayNumber(d) {
+ return d.getDay();
+}
+
+function formatWeekNumberMonday(d, p) {
+ return pad(monday.count(year(d), d), p, 2);
+}
+
+function formatYear(d, p) {
+ return pad(d.getFullYear() % 100, p, 2);
+}
+
+function formatFullYear(d, p) {
+ return pad(d.getFullYear() % 10000, p, 4);
+}
+
+function formatZone(d) {
+ var z = d.getTimezoneOffset();
+ return (z > 0 ? "-" : (z *= -1, "+"))
+ + pad(z / 60 | 0, "0", 2)
+ + pad(z % 60, "0", 2);
+}
+
+function formatUTCDayOfMonth(d, p) {
+ return pad(d.getUTCDate(), p, 2);
+}
+
+function formatUTCHour24(d, p) {
+ return pad(d.getUTCHours(), p, 2);
+}
+
+function formatUTCHour12(d, p) {
+ return pad(d.getUTCHours() % 12 || 12, p, 2);
+}
+
+function formatUTCDayOfYear(d, p) {
+ return pad(1 + utcDay.count(utcYear(d), d), p, 3);
+}
+
+function formatUTCMilliseconds(d, p) {
+ return pad(d.getUTCMilliseconds(), p, 3);
+}
+
+function formatUTCMonthNumber(d, p) {
+ return pad(d.getUTCMonth() + 1, p, 2);
+}
+
+function formatUTCMinutes(d, p) {
+ return pad(d.getUTCMinutes(), p, 2);
+}
+
+function formatUTCSeconds(d, p) {
+ return pad(d.getUTCSeconds(), p, 2);
+}
+
+function formatUTCWeekNumberSunday(d, p) {
+ return pad(utcSunday.count(utcYear(d), d), p, 2);
+}
+
+function formatUTCWeekdayNumber(d) {
+ return d.getUTCDay();
+}
+
+function formatUTCWeekNumberMonday(d, p) {
+ return pad(utcMonday.count(utcYear(d), d), p, 2);
+}
+
+function formatUTCYear(d, p) {
+ return pad(d.getUTCFullYear() % 100, p, 2);
+}
+
+function formatUTCFullYear(d, p) {
+ return pad(d.getUTCFullYear() % 10000, p, 4);
+}
+
+function formatUTCZone() {
+ return "+0000";
+}
+
+function formatLiteralPercent() {
+ return "%";
+}
+
+var locale$2;
+
+
+
+
+
+defaultLocale$1({
+ dateTime: "%x, %X",
+ date: "%-m/%-d/%Y",
+ time: "%-I:%M:%S %p",
+ periods: ["AM", "PM"],
+ days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
+ shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
+ months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
+ shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
+});
+
+function defaultLocale$1(definition) {
+ locale$2 = formatLocale$1(definition);
+ exports.timeFormat = locale$2.format;
+ exports.timeParse = locale$2.parse;
+ exports.utcFormat = locale$2.utcFormat;
+ exports.utcParse = locale$2.utcParse;
+ return locale$2;
+}
+
+var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ";
+
+function formatIsoNative(date) {
+ return date.toISOString();
+}
+
+var formatIso = Date.prototype.toISOString
+ ? formatIsoNative
+ : exports.utcFormat(isoSpecifier);
+
+function parseIsoNative(string) {
+ var date = new Date(string);
+ return isNaN(date) ? null : date;
+}
+
+var parseIso = +new Date("2000-01-01T00:00:00.000Z")
+ ? parseIsoNative
+ : exports.utcParse(isoSpecifier);
+
+var durationSecond = 1000;
+var durationMinute = durationSecond * 60;
+var durationHour = durationMinute * 60;
+var durationDay = durationHour * 24;
+var durationWeek = durationDay * 7;
+var durationMonth = durationDay * 30;
+var durationYear = durationDay * 365;
+
+function date$1(t) {
+ return new Date(t);
+}
+
+function number$2(t) {
+ return t instanceof Date ? +t : +new Date(+t);
+}
+
+function calendar(year$$1, month$$1, week, day$$1, hour$$1, minute$$1, second$$1, millisecond$$1, format) {
+ var scale = continuous(deinterpolateLinear, reinterpolate),
+ invert = scale.invert,
+ domain = scale.domain;
+
+ var formatMillisecond = format(".%L"),
+ formatSecond = format(":%S"),
+ formatMinute = format("%I:%M"),
+ formatHour = format("%I %p"),
+ formatDay = format("%a %d"),
+ formatWeek = format("%b %d"),
+ formatMonth = format("%B"),
+ formatYear = format("%Y");
+
+ var tickIntervals = [
+ [second$$1, 1, durationSecond],
+ [second$$1, 5, 5 * durationSecond],
+ [second$$1, 15, 15 * durationSecond],
+ [second$$1, 30, 30 * durationSecond],
+ [minute$$1, 1, durationMinute],
+ [minute$$1, 5, 5 * durationMinute],
+ [minute$$1, 15, 15 * durationMinute],
+ [minute$$1, 30, 30 * durationMinute],
+ [ hour$$1, 1, durationHour ],
+ [ hour$$1, 3, 3 * durationHour ],
+ [ hour$$1, 6, 6 * durationHour ],
+ [ hour$$1, 12, 12 * durationHour ],
+ [ day$$1, 1, durationDay ],
+ [ day$$1, 2, 2 * durationDay ],
+ [ week, 1, durationWeek ],
+ [ month$$1, 1, durationMonth ],
+ [ month$$1, 3, 3 * durationMonth ],
+ [ year$$1, 1, durationYear ]
+ ];
+
+ function tickFormat(date) {
+ return (second$$1(date) < date ? formatMillisecond
+ : minute$$1(date) < date ? formatSecond
+ : hour$$1(date) < date ? formatMinute
+ : day$$1(date) < date ? formatHour
+ : month$$1(date) < date ? (week(date) < date ? formatDay : formatWeek)
+ : year$$1(date) < date ? formatMonth
+ : formatYear)(date);
+ }
+
+ function tickInterval(interval, start, stop, step) {
+ if (interval == null) interval = 10;
+
+ // If a desired tick count is specified, pick a reasonable tick interval
+ // based on the extent of the domain and a rough estimate of tick size.
+ // Otherwise, assume interval is already a time interval and use it.
+ if (typeof interval === "number") {
+ var target = Math.abs(stop - start) / interval,
+ i = bisector(function(i) { return i[2]; }).right(tickIntervals, target);
+ if (i === tickIntervals.length) {
+ step = tickStep(start / durationYear, stop / durationYear, interval);
+ interval = year$$1;
+ } else if (i) {
+ i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i];
+ step = i[1];
+ interval = i[0];
+ } else {
+ step = tickStep(start, stop, interval);
+ interval = millisecond$$1;
+ }
+ }
+
+ return step == null ? interval : interval.every(step);
+ }
+
+ scale.invert = function(y) {
+ return new Date(invert(y));
+ };
+
+ scale.domain = function(_) {
+ return arguments.length ? domain(map$3.call(_, number$2)) : domain().map(date$1);
+ };
+
+ scale.ticks = function(interval, step) {
+ var d = domain(),
+ t0 = d[0],
+ t1 = d[d.length - 1],
+ r = t1 < t0,
+ t;
+ if (r) t = t0, t0 = t1, t1 = t;
+ t = tickInterval(interval, t0, t1, step);
+ t = t ? t.range(t0, t1 + 1) : []; // inclusive stop
+ return r ? t.reverse() : t;
+ };
+
+ scale.tickFormat = function(count, specifier) {
+ return specifier == null ? tickFormat : format(specifier);
+ };
+
+ scale.nice = function(interval, step) {
+ var d = domain();
+ return (interval = tickInterval(interval, d[0], d[d.length - 1], step))
+ ? domain(nice(d, interval))
+ : scale;
+ };
+
+ scale.copy = function() {
+ return copy(scale, calendar(year$$1, month$$1, week, day$$1, hour$$1, minute$$1, second$$1, millisecond$$1, format));
+ };
+
+ return scale;
+}
+
+var time = function() {
+ return calendar(year, month, sunday, day, hour, minute, second, millisecond, exports.timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]);
+};
+
+var utcTime = function() {
+ return calendar(utcYear, utcMonth, utcSunday, utcDay, utcHour, utcMinute, second, millisecond, exports.utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]);
+};
+
+var colors = function(s) {
+ return s.match(/.{6}/g).map(function(x) {
+ return "#" + x;
+ });
+};
+
+var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf");
+
+var category20b = colors("393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6");
+
+var category20c = colors("3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9");
+
+var category20 = colors("1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5");
+
+var cubehelix$3 = cubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0));
+
+var warm = cubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8));
+
+var cool = cubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8));
+
+var rainbow = cubehelix();
+
+var rainbow$1 = function(t) {
+ if (t < 0 || t > 1) t -= Math.floor(t);
+ var ts = Math.abs(t - 0.5);
+ rainbow.h = 360 * t - 100;
+ rainbow.s = 1.5 - 1.5 * ts;
+ rainbow.l = 0.8 - 0.9 * ts;
+ return rainbow + "";
+};
+
+function ramp(range) {
+ var n = range.length;
+ return function(t) {
+ return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))];
+ };
+}
+
+var viridis = ramp(colors("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"));
+
+var magma = ramp(colors("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"));
+
+var inferno = ramp(colors("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"));
+
+var plasma = ramp(colors("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"));
+
+function sequential(interpolator) {
+ var x0 = 0,
+ x1 = 1,
+ clamp = false;
+
+ function scale(x) {
+ var t = (x - x0) / (x1 - x0);
+ return interpolator(clamp ? Math.max(0, Math.min(1, t)) : t);
+ }
+
+ scale.domain = function(_) {
+ return arguments.length ? (x0 = +_[0], x1 = +_[1], scale) : [x0, x1];
+ };
+
+ scale.clamp = function(_) {
+ return arguments.length ? (clamp = !!_, scale) : clamp;
+ };
+
+ scale.interpolator = function(_) {
+ return arguments.length ? (interpolator = _, scale) : interpolator;
+ };
+
+ scale.copy = function() {
+ return sequential(interpolator).domain([x0, x1]).clamp(clamp);
+ };
+
+ return linearish(scale);
+}
+
+var constant$10 = function(x) {
+ return function constant() {
+ return x;
+ };
+};
+
+var abs$1 = Math.abs;
+var atan2$1 = Math.atan2;
+var cos$2 = Math.cos;
+var max$2 = Math.max;
+var min$1 = Math.min;
+var sin$2 = Math.sin;
+var sqrt$2 = Math.sqrt;
+
+var epsilon$3 = 1e-12;
+var pi$4 = Math.PI;
+var halfPi$3 = pi$4 / 2;
+var tau$4 = 2 * pi$4;
+
+function acos$1(x) {
+ return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x);
+}
+
+function asin$1(x) {
+ return x >= 1 ? halfPi$3 : x <= -1 ? -halfPi$3 : Math.asin(x);
+}
+
+function arcInnerRadius(d) {
+ return d.innerRadius;
+}
+
+function arcOuterRadius(d) {
+ return d.outerRadius;
+}
+
+function arcStartAngle(d) {
+ return d.startAngle;
+}
+
+function arcEndAngle(d) {
+ return d.endAngle;
+}
+
+function arcPadAngle(d) {
+ return d && d.padAngle; // Note: optional!
+}
+
+function intersect(x0, y0, x1, y1, x2, y2, x3, y3) {
+ var x10 = x1 - x0, y10 = y1 - y0,
+ x32 = x3 - x2, y32 = y3 - y2,
+ t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / (y32 * x10 - x32 * y10);
+ return [x0 + t * x10, y0 + t * y10];
+}
+
+// Compute perpendicular offset line of length rc.
+// http://mathworld.wolfram.com/Circle-LineIntersection.html
+function cornerTangents(x0, y0, x1, y1, r1, rc, cw) {
+ var x01 = x0 - x1,
+ y01 = y0 - y1,
+ lo = (cw ? rc : -rc) / sqrt$2(x01 * x01 + y01 * y01),
+ ox = lo * y01,
+ oy = -lo * x01,
+ x11 = x0 + ox,
+ y11 = y0 + oy,
+ x10 = x1 + ox,
+ y10 = y1 + oy,
+ x00 = (x11 + x10) / 2,
+ y00 = (y11 + y10) / 2,
+ dx = x10 - x11,
+ dy = y10 - y11,
+ d2 = dx * dx + dy * dy,
+ r = r1 - rc,
+ D = x11 * y10 - x10 * y11,
+ d = (dy < 0 ? -1 : 1) * sqrt$2(max$2(0, r * r * d2 - D * D)),
+ cx0 = (D * dy - dx * d) / d2,
+ cy0 = (-D * dx - dy * d) / d2,
+ cx1 = (D * dy + dx * d) / d2,
+ cy1 = (-D * dx + dy * d) / d2,
+ dx0 = cx0 - x00,
+ dy0 = cy0 - y00,
+ dx1 = cx1 - x00,
+ dy1 = cy1 - y00;
+
+ // Pick the closer of the two intersection points.
+ // TODO Is there a faster way to determine which intersection to use?
+ if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
+
+ return {
+ cx: cx0,
+ cy: cy0,
+ x01: -ox,
+ y01: -oy,
+ x11: cx0 * (r1 / r - 1),
+ y11: cy0 * (r1 / r - 1)
+ };
+}
+
+var arc = function() {
+ var innerRadius = arcInnerRadius,
+ outerRadius = arcOuterRadius,
+ cornerRadius = constant$10(0),
+ padRadius = null,
+ startAngle = arcStartAngle,
+ endAngle = arcEndAngle,
+ padAngle = arcPadAngle,
+ context = null;
+
+ function arc() {
+ var buffer,
+ r,
+ r0 = +innerRadius.apply(this, arguments),
+ r1 = +outerRadius.apply(this, arguments),
+ a0 = startAngle.apply(this, arguments) - halfPi$3,
+ a1 = endAngle.apply(this, arguments) - halfPi$3,
+ da = abs$1(a1 - a0),
+ cw = a1 > a0;
+
+ if (!context) context = buffer = path();
+
+ // Ensure that the outer radius is always larger than the inner radius.
+ if (r1 < r0) r = r1, r1 = r0, r0 = r;
+
+ // Is it a point?
+ if (!(r1 > epsilon$3)) context.moveTo(0, 0);
+
+ // Or is it a circle or annulus?
+ else if (da > tau$4 - epsilon$3) {
+ context.moveTo(r1 * cos$2(a0), r1 * sin$2(a0));
+ context.arc(0, 0, r1, a0, a1, !cw);
+ if (r0 > epsilon$3) {
+ context.moveTo(r0 * cos$2(a1), r0 * sin$2(a1));
+ context.arc(0, 0, r0, a1, a0, cw);
+ }
+ }
+
+ // Or is it a circular or annular sector?
+ else {
+ var a01 = a0,
+ a11 = a1,
+ a00 = a0,
+ a10 = a1,
+ da0 = da,
+ da1 = da,
+ ap = padAngle.apply(this, arguments) / 2,
+ rp = (ap > epsilon$3) && (padRadius ? +padRadius.apply(this, arguments) : sqrt$2(r0 * r0 + r1 * r1)),
+ rc = min$1(abs$1(r1 - r0) / 2, +cornerRadius.apply(this, arguments)),
+ rc0 = rc,
+ rc1 = rc,
+ t0,
+ t1;
+
+ // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0.
+ if (rp > epsilon$3) {
+ var p0 = asin$1(rp / r0 * sin$2(ap)),
+ p1 = asin$1(rp / r1 * sin$2(ap));
+ if ((da0 -= p0 * 2) > epsilon$3) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0;
+ else da0 = 0, a00 = a10 = (a0 + a1) / 2;
+ if ((da1 -= p1 * 2) > epsilon$3) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1;
+ else da1 = 0, a01 = a11 = (a0 + a1) / 2;
+ }
+
+ var x01 = r1 * cos$2(a01),
+ y01 = r1 * sin$2(a01),
+ x10 = r0 * cos$2(a10),
+ y10 = r0 * sin$2(a10);
+
+ // Apply rounded corners?
+ if (rc > epsilon$3) {
+ var x11 = r1 * cos$2(a11),
+ y11 = r1 * sin$2(a11),
+ x00 = r0 * cos$2(a00),
+ y00 = r0 * sin$2(a00);
+
+ // Restrict the corner radius according to the sector angle.
+ if (da < pi$4) {
+ var oc = da0 > epsilon$3 ? intersect(x01, y01, x00, y00, x11, y11, x10, y10) : [x10, y10],
+ ax = x01 - oc[0],
+ ay = y01 - oc[1],
+ bx = x11 - oc[0],
+ by = y11 - oc[1],
+ kc = 1 / sin$2(acos$1((ax * bx + ay * by) / (sqrt$2(ax * ax + ay * ay) * sqrt$2(bx * bx + by * by))) / 2),
+ lc = sqrt$2(oc[0] * oc[0] + oc[1] * oc[1]);
+ rc0 = min$1(rc, (r0 - lc) / (kc - 1));
+ rc1 = min$1(rc, (r1 - lc) / (kc + 1));
+ }
+ }
+
+ // Is the sector collapsed to a line?
+ if (!(da1 > epsilon$3)) context.moveTo(x01, y01);
+
+ // Does the sector’s outer ring have rounded corners?
+ else if (rc1 > epsilon$3) {
+ t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw);
+ t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw);
+
+ context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01);
+
+ // Have the corners merged?
+ if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw);
+
+ // Otherwise, draw the two corners and the ring.
+ else {
+ context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw);
+ context.arc(0, 0, r1, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), !cw);
+ context.arc(t1.cx, t1.cy, rc1, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw);
+ }
+ }
+
+ // Or is the outer ring just a circular arc?
+ else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw);
+
+ // Is there no inner ring, and it’s a circular sector?
+ // Or perhaps it’s an annular sector collapsed due to padding?
+ if (!(r0 > epsilon$3) || !(da0 > epsilon$3)) context.lineTo(x10, y10);
+
+ // Does the sector’s inner ring (or point) have rounded corners?
+ else if (rc0 > epsilon$3) {
+ t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw);
+ t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw);
+
+ context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01);
+
+ // Have the corners merged?
+ if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw);
+
+ // Otherwise, draw the two corners and the ring.
+ else {
+ context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw);
+ context.arc(0, 0, r0, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), cw);
+ context.arc(t1.cx, t1.cy, rc0, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw);
+ }
+ }
+
+ // Or is the inner ring just a circular arc?
+ else context.arc(0, 0, r0, a10, a00, cw);
+ }
+
+ context.closePath();
+
+ if (buffer) return context = null, buffer + "" || null;
+ }
+
+ arc.centroid = function() {
+ var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2,
+ a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$4 / 2;
+ return [cos$2(a) * r, sin$2(a) * r];
+ };
+
+ arc.innerRadius = function(_) {
+ return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$10(+_), arc) : innerRadius;
+ };
+
+ arc.outerRadius = function(_) {
+ return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$10(+_), arc) : outerRadius;
+ };
+
+ arc.cornerRadius = function(_) {
+ return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$10(+_), arc) : cornerRadius;
+ };
+
+ arc.padRadius = function(_) {
+ return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$10(+_), arc) : padRadius;
+ };
+
+ arc.startAngle = function(_) {
+ return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$10(+_), arc) : startAngle;
+ };
+
+ arc.endAngle = function(_) {
+ return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$10(+_), arc) : endAngle;
+ };
+
+ arc.padAngle = function(_) {
+ return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$10(+_), arc) : padAngle;
+ };
+
+ arc.context = function(_) {
+ return arguments.length ? ((context = _ == null ? null : _), arc) : context;
+ };
+
+ return arc;
+};
+
+function Linear(context) {
+ this._context = context;
+}
+
+Linear.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
+ case 1: this._point = 2; // proceed
+ default: this._context.lineTo(x, y); break;
+ }
+ }
+};
+
+var curveLinear = function(context) {
+ return new Linear(context);
+};
+
+function x$3(p) {
+ return p[0];
+}
+
+function y$3(p) {
+ return p[1];
+}
+
+var line = function() {
+ var x$$1 = x$3,
+ y$$1 = y$3,
+ defined = constant$10(true),
+ context = null,
+ curve = curveLinear,
+ output = null;
+
+ function line(data) {
+ var i,
+ n = data.length,
+ d,
+ defined0 = false,
+ buffer;
+
+ if (context == null) output = curve(buffer = path());
+
+ for (i = 0; i <= n; ++i) {
+ if (!(i < n && defined(d = data[i], i, data)) === defined0) {
+ if (defined0 = !defined0) output.lineStart();
+ else output.lineEnd();
+ }
+ if (defined0) output.point(+x$$1(d, i, data), +y$$1(d, i, data));
+ }
+
+ if (buffer) return output = null, buffer + "" || null;
+ }
+
+ line.x = function(_) {
+ return arguments.length ? (x$$1 = typeof _ === "function" ? _ : constant$10(+_), line) : x$$1;
+ };
+
+ line.y = function(_) {
+ return arguments.length ? (y$$1 = typeof _ === "function" ? _ : constant$10(+_), line) : y$$1;
+ };
+
+ line.defined = function(_) {
+ return arguments.length ? (defined = typeof _ === "function" ? _ : constant$10(!!_), line) : defined;
+ };
+
+ line.curve = function(_) {
+ return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve;
+ };
+
+ line.context = function(_) {
+ return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context;
+ };
+
+ return line;
+};
+
+var area$2 = function() {
+ var x0 = x$3,
+ x1 = null,
+ y0 = constant$10(0),
+ y1 = y$3,
+ defined = constant$10(true),
+ context = null,
+ curve = curveLinear,
+ output = null;
+
+ function area(data) {
+ var i,
+ j,
+ k,
+ n = data.length,
+ d,
+ defined0 = false,
+ buffer,
+ x0z = new Array(n),
+ y0z = new Array(n);
+
+ if (context == null) output = curve(buffer = path());
+
+ for (i = 0; i <= n; ++i) {
+ if (!(i < n && defined(d = data[i], i, data)) === defined0) {
+ if (defined0 = !defined0) {
+ j = i;
+ output.areaStart();
+ output.lineStart();
+ } else {
+ output.lineEnd();
+ output.lineStart();
+ for (k = i - 1; k >= j; --k) {
+ output.point(x0z[k], y0z[k]);
+ }
+ output.lineEnd();
+ output.areaEnd();
+ }
+ }
+ if (defined0) {
+ x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data);
+ output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]);
+ }
+ }
+
+ if (buffer) return output = null, buffer + "" || null;
+ }
+
+ function arealine() {
+ return line().defined(defined).curve(curve).context(context);
+ }
+
+ area.x = function(_) {
+ return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$10(+_), x1 = null, area) : x0;
+ };
+
+ area.x0 = function(_) {
+ return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$10(+_), area) : x0;
+ };
+
+ area.x1 = function(_) {
+ return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$10(+_), area) : x1;
+ };
+
+ area.y = function(_) {
+ return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$10(+_), y1 = null, area) : y0;
+ };
+
+ area.y0 = function(_) {
+ return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$10(+_), area) : y0;
+ };
+
+ area.y1 = function(_) {
+ return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$10(+_), area) : y1;
+ };
+
+ area.lineX0 =
+ area.lineY0 = function() {
+ return arealine().x(x0).y(y0);
+ };
+
+ area.lineY1 = function() {
+ return arealine().x(x0).y(y1);
+ };
+
+ area.lineX1 = function() {
+ return arealine().x(x1).y(y0);
+ };
+
+ area.defined = function(_) {
+ return arguments.length ? (defined = typeof _ === "function" ? _ : constant$10(!!_), area) : defined;
+ };
+
+ area.curve = function(_) {
+ return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve;
+ };
+
+ area.context = function(_) {
+ return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context;
+ };
+
+ return area;
+};
+
+var descending$1 = function(a, b) {
+ return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+};
+
+var identity$7 = function(d) {
+ return d;
+};
+
+var pie = function() {
+ var value = identity$7,
+ sortValues = descending$1,
+ sort = null,
+ startAngle = constant$10(0),
+ endAngle = constant$10(tau$4),
+ padAngle = constant$10(0);
+
+ function pie(data) {
+ var i,
+ n = data.length,
+ j,
+ k,
+ sum = 0,
+ index = new Array(n),
+ arcs = new Array(n),
+ a0 = +startAngle.apply(this, arguments),
+ da = Math.min(tau$4, Math.max(-tau$4, endAngle.apply(this, arguments) - a0)),
+ a1,
+ p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)),
+ pa = p * (da < 0 ? -1 : 1),
+ v;
+
+ for (i = 0; i < n; ++i) {
+ if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) {
+ sum += v;
+ }
+ }
+
+ // Optionally sort the arcs by previously-computed values or by data.
+ if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); });
+ else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); });
+
+ // Compute the arcs! They are stored in the original data's order.
+ for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) {
+ j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = {
+ data: data[j],
+ index: i,
+ value: v,
+ startAngle: a0,
+ endAngle: a1,
+ padAngle: p
+ };
+ }
+
+ return arcs;
+ }
+
+ pie.value = function(_) {
+ return arguments.length ? (value = typeof _ === "function" ? _ : constant$10(+_), pie) : value;
+ };
+
+ pie.sortValues = function(_) {
+ return arguments.length ? (sortValues = _, sort = null, pie) : sortValues;
+ };
+
+ pie.sort = function(_) {
+ return arguments.length ? (sort = _, sortValues = null, pie) : sort;
+ };
+
+ pie.startAngle = function(_) {
+ return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$10(+_), pie) : startAngle;
+ };
+
+ pie.endAngle = function(_) {
+ return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$10(+_), pie) : endAngle;
+ };
+
+ pie.padAngle = function(_) {
+ return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$10(+_), pie) : padAngle;
+ };
+
+ return pie;
+};
+
+var curveRadialLinear = curveRadial(curveLinear);
+
+function Radial(curve) {
+ this._curve = curve;
+}
+
+Radial.prototype = {
+ areaStart: function() {
+ this._curve.areaStart();
+ },
+ areaEnd: function() {
+ this._curve.areaEnd();
+ },
+ lineStart: function() {
+ this._curve.lineStart();
+ },
+ lineEnd: function() {
+ this._curve.lineEnd();
+ },
+ point: function(a, r) {
+ this._curve.point(r * Math.sin(a), r * -Math.cos(a));
+ }
+};
+
+function curveRadial(curve) {
+
+ function radial(context) {
+ return new Radial(curve(context));
+ }
+
+ radial._curve = curve;
+
+ return radial;
+}
+
+function radialLine(l) {
+ var c = l.curve;
+
+ l.angle = l.x, delete l.x;
+ l.radius = l.y, delete l.y;
+
+ l.curve = function(_) {
+ return arguments.length ? c(curveRadial(_)) : c()._curve;
+ };
+
+ return l;
+}
+
+var radialLine$1 = function() {
+ return radialLine(line().curve(curveRadialLinear));
+};
+
+var radialArea = function() {
+ var a = area$2().curve(curveRadialLinear),
+ c = a.curve,
+ x0 = a.lineX0,
+ x1 = a.lineX1,
+ y0 = a.lineY0,
+ y1 = a.lineY1;
+
+ a.angle = a.x, delete a.x;
+ a.startAngle = a.x0, delete a.x0;
+ a.endAngle = a.x1, delete a.x1;
+ a.radius = a.y, delete a.y;
+ a.innerRadius = a.y0, delete a.y0;
+ a.outerRadius = a.y1, delete a.y1;
+ a.lineStartAngle = function() { return radialLine(x0()); }, delete a.lineX0;
+ a.lineEndAngle = function() { return radialLine(x1()); }, delete a.lineX1;
+ a.lineInnerRadius = function() { return radialLine(y0()); }, delete a.lineY0;
+ a.lineOuterRadius = function() { return radialLine(y1()); }, delete a.lineY1;
+
+ a.curve = function(_) {
+ return arguments.length ? c(curveRadial(_)) : c()._curve;
+ };
+
+ return a;
+};
+
+var circle$2 = {
+ draw: function(context, size) {
+ var r = Math.sqrt(size / pi$4);
+ context.moveTo(r, 0);
+ context.arc(0, 0, r, 0, tau$4);
+ }
+};
+
+var cross$2 = {
+ draw: function(context, size) {
+ var r = Math.sqrt(size / 5) / 2;
+ context.moveTo(-3 * r, -r);
+ context.lineTo(-r, -r);
+ context.lineTo(-r, -3 * r);
+ context.lineTo(r, -3 * r);
+ context.lineTo(r, -r);
+ context.lineTo(3 * r, -r);
+ context.lineTo(3 * r, r);
+ context.lineTo(r, r);
+ context.lineTo(r, 3 * r);
+ context.lineTo(-r, 3 * r);
+ context.lineTo(-r, r);
+ context.lineTo(-3 * r, r);
+ context.closePath();
+ }
+};
+
+var tan30 = Math.sqrt(1 / 3);
+var tan30_2 = tan30 * 2;
+
+var diamond = {
+ draw: function(context, size) {
+ var y = Math.sqrt(size / tan30_2),
+ x = y * tan30;
+ context.moveTo(0, -y);
+ context.lineTo(x, 0);
+ context.lineTo(0, y);
+ context.lineTo(-x, 0);
+ context.closePath();
+ }
+};
+
+var ka = 0.89081309152928522810;
+var kr = Math.sin(pi$4 / 10) / Math.sin(7 * pi$4 / 10);
+var kx = Math.sin(tau$4 / 10) * kr;
+var ky = -Math.cos(tau$4 / 10) * kr;
+
+var star = {
+ draw: function(context, size) {
+ var r = Math.sqrt(size * ka),
+ x = kx * r,
+ y = ky * r;
+ context.moveTo(0, -r);
+ context.lineTo(x, y);
+ for (var i = 1; i < 5; ++i) {
+ var a = tau$4 * i / 5,
+ c = Math.cos(a),
+ s = Math.sin(a);
+ context.lineTo(s * r, -c * r);
+ context.lineTo(c * x - s * y, s * x + c * y);
+ }
+ context.closePath();
+ }
+};
+
+var square = {
+ draw: function(context, size) {
+ var w = Math.sqrt(size),
+ x = -w / 2;
+ context.rect(x, x, w, w);
+ }
+};
+
+var sqrt3 = Math.sqrt(3);
+
+var triangle = {
+ draw: function(context, size) {
+ var y = -Math.sqrt(size / (sqrt3 * 3));
+ context.moveTo(0, y * 2);
+ context.lineTo(-sqrt3 * y, -y);
+ context.lineTo(sqrt3 * y, -y);
+ context.closePath();
+ }
+};
+
+var c = -0.5;
+var s = Math.sqrt(3) / 2;
+var k = 1 / Math.sqrt(12);
+var a = (k / 2 + 1) * 3;
+
+var wye = {
+ draw: function(context, size) {
+ var r = Math.sqrt(size / a),
+ x0 = r / 2,
+ y0 = r * k,
+ x1 = x0,
+ y1 = r * k + r,
+ x2 = -x1,
+ y2 = y1;
+ context.moveTo(x0, y0);
+ context.lineTo(x1, y1);
+ context.lineTo(x2, y2);
+ context.lineTo(c * x0 - s * y0, s * x0 + c * y0);
+ context.lineTo(c * x1 - s * y1, s * x1 + c * y1);
+ context.lineTo(c * x2 - s * y2, s * x2 + c * y2);
+ context.lineTo(c * x0 + s * y0, c * y0 - s * x0);
+ context.lineTo(c * x1 + s * y1, c * y1 - s * x1);
+ context.lineTo(c * x2 + s * y2, c * y2 - s * x2);
+ context.closePath();
+ }
+};
+
+var symbols = [
+ circle$2,
+ cross$2,
+ diamond,
+ square,
+ star,
+ triangle,
+ wye
+];
+
+var symbol = function() {
+ var type = constant$10(circle$2),
+ size = constant$10(64),
+ context = null;
+
+ function symbol() {
+ var buffer;
+ if (!context) context = buffer = path();
+ type.apply(this, arguments).draw(context, +size.apply(this, arguments));
+ if (buffer) return context = null, buffer + "" || null;
+ }
+
+ symbol.type = function(_) {
+ return arguments.length ? (type = typeof _ === "function" ? _ : constant$10(_), symbol) : type;
+ };
+
+ symbol.size = function(_) {
+ return arguments.length ? (size = typeof _ === "function" ? _ : constant$10(+_), symbol) : size;
+ };
+
+ symbol.context = function(_) {
+ return arguments.length ? (context = _ == null ? null : _, symbol) : context;
+ };
+
+ return symbol;
+};
+
+var noop$2 = function() {};
+
+function point$2(that, x, y) {
+ that._context.bezierCurveTo(
+ (2 * that._x0 + that._x1) / 3,
+ (2 * that._y0 + that._y1) / 3,
+ (that._x0 + 2 * that._x1) / 3,
+ (that._y0 + 2 * that._y1) / 3,
+ (that._x0 + 4 * that._x1 + x) / 6,
+ (that._y0 + 4 * that._y1 + y) / 6
+ );
+}
+
+function Basis(context) {
+ this._context = context;
+}
+
+Basis.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 =
+ this._y0 = this._y1 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 3: point$2(this, this._x1, this._y1); // proceed
+ case 2: this._context.lineTo(this._x1, this._y1); break;
+ }
+ if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
+ case 1: this._point = 2; break;
+ case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed
+ default: point$2(this, x, y); break;
+ }
+ this._x0 = this._x1, this._x1 = x;
+ this._y0 = this._y1, this._y1 = y;
+ }
+};
+
+var basis$2 = function(context) {
+ return new Basis(context);
+};
+
+function BasisClosed(context) {
+ this._context = context;
+}
+
+BasisClosed.prototype = {
+ areaStart: noop$2,
+ areaEnd: noop$2,
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 =
+ this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 1: {
+ this._context.moveTo(this._x2, this._y2);
+ this._context.closePath();
+ break;
+ }
+ case 2: {
+ this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3);
+ this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3);
+ this._context.closePath();
+ break;
+ }
+ case 3: {
+ this.point(this._x2, this._y2);
+ this.point(this._x3, this._y3);
+ this.point(this._x4, this._y4);
+ break;
+ }
+ }
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; this._x2 = x, this._y2 = y; break;
+ case 1: this._point = 2; this._x3 = x, this._y3 = y; break;
+ case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break;
+ default: point$2(this, x, y); break;
+ }
+ this._x0 = this._x1, this._x1 = x;
+ this._y0 = this._y1, this._y1 = y;
+ }
+};
+
+var basisClosed$1 = function(context) {
+ return new BasisClosed(context);
+};
+
+function BasisOpen(context) {
+ this._context = context;
+}
+
+BasisOpen.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 =
+ this._y0 = this._y1 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; break;
+ case 1: this._point = 2; break;
+ case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break;
+ case 3: this._point = 4; // proceed
+ default: point$2(this, x, y); break;
+ }
+ this._x0 = this._x1, this._x1 = x;
+ this._y0 = this._y1, this._y1 = y;
+ }
+};
+
+var basisOpen = function(context) {
+ return new BasisOpen(context);
+};
+
+function Bundle(context, beta) {
+ this._basis = new Basis(context);
+ this._beta = beta;
+}
+
+Bundle.prototype = {
+ lineStart: function() {
+ this._x = [];
+ this._y = [];
+ this._basis.lineStart();
+ },
+ lineEnd: function() {
+ var x = this._x,
+ y = this._y,
+ j = x.length - 1;
+
+ if (j > 0) {
+ var x0 = x[0],
+ y0 = y[0],
+ dx = x[j] - x0,
+ dy = y[j] - y0,
+ i = -1,
+ t;
+
+ while (++i <= j) {
+ t = i / j;
+ this._basis.point(
+ this._beta * x[i] + (1 - this._beta) * (x0 + t * dx),
+ this._beta * y[i] + (1 - this._beta) * (y0 + t * dy)
+ );
+ }
+ }
+
+ this._x = this._y = null;
+ this._basis.lineEnd();
+ },
+ point: function(x, y) {
+ this._x.push(+x);
+ this._y.push(+y);
+ }
+};
+
+var bundle = ((function custom(beta) {
+
+ function bundle(context) {
+ return beta === 1 ? new Basis(context) : new Bundle(context, beta);
+ }
+
+ bundle.beta = function(beta) {
+ return custom(+beta);
+ };
+
+ return bundle;
+}))(0.85);
+
+function point$3(that, x, y) {
+ that._context.bezierCurveTo(
+ that._x1 + that._k * (that._x2 - that._x0),
+ that._y1 + that._k * (that._y2 - that._y0),
+ that._x2 + that._k * (that._x1 - x),
+ that._y2 + that._k * (that._y1 - y),
+ that._x2,
+ that._y2
+ );
+}
+
+function Cardinal(context, tension) {
+ this._context = context;
+ this._k = (1 - tension) / 6;
+}
+
+Cardinal.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 =
+ this._y0 = this._y1 = this._y2 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 2: this._context.lineTo(this._x2, this._y2); break;
+ case 3: point$3(this, this._x1, this._y1); break;
+ }
+ if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
+ case 1: this._point = 2; this._x1 = x, this._y1 = y; break;
+ case 2: this._point = 3; // proceed
+ default: point$3(this, x, y); break;
+ }
+ this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+ this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+ }
+};
+
+var cardinal = ((function custom(tension) {
+
+ function cardinal(context) {
+ return new Cardinal(context, tension);
+ }
+
+ cardinal.tension = function(tension) {
+ return custom(+tension);
+ };
+
+ return cardinal;
+}))(0);
+
+function CardinalClosed(context, tension) {
+ this._context = context;
+ this._k = (1 - tension) / 6;
+}
+
+CardinalClosed.prototype = {
+ areaStart: noop$2,
+ areaEnd: noop$2,
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =
+ this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 1: {
+ this._context.moveTo(this._x3, this._y3);
+ this._context.closePath();
+ break;
+ }
+ case 2: {
+ this._context.lineTo(this._x3, this._y3);
+ this._context.closePath();
+ break;
+ }
+ case 3: {
+ this.point(this._x3, this._y3);
+ this.point(this._x4, this._y4);
+ this.point(this._x5, this._y5);
+ break;
+ }
+ }
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; this._x3 = x, this._y3 = y; break;
+ case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;
+ case 2: this._point = 3; this._x5 = x, this._y5 = y; break;
+ default: point$3(this, x, y); break;
+ }
+ this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+ this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+ }
+};
+
+var cardinalClosed = ((function custom(tension) {
+
+ function cardinal(context) {
+ return new CardinalClosed(context, tension);
+ }
+
+ cardinal.tension = function(tension) {
+ return custom(+tension);
+ };
+
+ return cardinal;
+}))(0);
+
+function CardinalOpen(context, tension) {
+ this._context = context;
+ this._k = (1 - tension) / 6;
+}
+
+CardinalOpen.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 =
+ this._y0 = this._y1 = this._y2 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; break;
+ case 1: this._point = 2; break;
+ case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;
+ case 3: this._point = 4; // proceed
+ default: point$3(this, x, y); break;
+ }
+ this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+ this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+ }
+};
+
+var cardinalOpen = ((function custom(tension) {
+
+ function cardinal(context) {
+ return new CardinalOpen(context, tension);
+ }
+
+ cardinal.tension = function(tension) {
+ return custom(+tension);
+ };
+
+ return cardinal;
+}))(0);
+
+function point$4(that, x, y) {
+ var x1 = that._x1,
+ y1 = that._y1,
+ x2 = that._x2,
+ y2 = that._y2;
+
+ if (that._l01_a > epsilon$3) {
+ var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a,
+ n = 3 * that._l01_a * (that._l01_a + that._l12_a);
+ x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n;
+ y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n;
+ }
+
+ if (that._l23_a > epsilon$3) {
+ var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a,
+ m = 3 * that._l23_a * (that._l23_a + that._l12_a);
+ x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m;
+ y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m;
+ }
+
+ that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2);
+}
+
+function CatmullRom(context, alpha) {
+ this._context = context;
+ this._alpha = alpha;
+}
+
+CatmullRom.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 =
+ this._y0 = this._y1 = this._y2 = NaN;
+ this._l01_a = this._l12_a = this._l23_a =
+ this._l01_2a = this._l12_2a = this._l23_2a =
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 2: this._context.lineTo(this._x2, this._y2); break;
+ case 3: this.point(this._x2, this._y2); break;
+ }
+ if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+
+ if (this._point) {
+ var x23 = this._x2 - x,
+ y23 = this._y2 - y;
+ this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
+ }
+
+ switch (this._point) {
+ case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
+ case 1: this._point = 2; break;
+ case 2: this._point = 3; // proceed
+ default: point$4(this, x, y); break;
+ }
+
+ this._l01_a = this._l12_a, this._l12_a = this._l23_a;
+ this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
+ this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+ this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+ }
+};
+
+var catmullRom = ((function custom(alpha) {
+
+ function catmullRom(context) {
+ return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0);
+ }
+
+ catmullRom.alpha = function(alpha) {
+ return custom(+alpha);
+ };
+
+ return catmullRom;
+}))(0.5);
+
+function CatmullRomClosed(context, alpha) {
+ this._context = context;
+ this._alpha = alpha;
+}
+
+CatmullRomClosed.prototype = {
+ areaStart: noop$2,
+ areaEnd: noop$2,
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =
+ this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;
+ this._l01_a = this._l12_a = this._l23_a =
+ this._l01_2a = this._l12_2a = this._l23_2a =
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 1: {
+ this._context.moveTo(this._x3, this._y3);
+ this._context.closePath();
+ break;
+ }
+ case 2: {
+ this._context.lineTo(this._x3, this._y3);
+ this._context.closePath();
+ break;
+ }
+ case 3: {
+ this.point(this._x3, this._y3);
+ this.point(this._x4, this._y4);
+ this.point(this._x5, this._y5);
+ break;
+ }
+ }
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+
+ if (this._point) {
+ var x23 = this._x2 - x,
+ y23 = this._y2 - y;
+ this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
+ }
+
+ switch (this._point) {
+ case 0: this._point = 1; this._x3 = x, this._y3 = y; break;
+ case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;
+ case 2: this._point = 3; this._x5 = x, this._y5 = y; break;
+ default: point$4(this, x, y); break;
+ }
+
+ this._l01_a = this._l12_a, this._l12_a = this._l23_a;
+ this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
+ this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+ this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+ }
+};
+
+var catmullRomClosed = ((function custom(alpha) {
+
+ function catmullRom(context) {
+ return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0);
+ }
+
+ catmullRom.alpha = function(alpha) {
+ return custom(+alpha);
+ };
+
+ return catmullRom;
+}))(0.5);
+
+function CatmullRomOpen(context, alpha) {
+ this._context = context;
+ this._alpha = alpha;
+}
+
+CatmullRomOpen.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 = this._x2 =
+ this._y0 = this._y1 = this._y2 = NaN;
+ this._l01_a = this._l12_a = this._l23_a =
+ this._l01_2a = this._l12_2a = this._l23_2a =
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+
+ if (this._point) {
+ var x23 = this._x2 - x,
+ y23 = this._y2 - y;
+ this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
+ }
+
+ switch (this._point) {
+ case 0: this._point = 1; break;
+ case 1: this._point = 2; break;
+ case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;
+ case 3: this._point = 4; // proceed
+ default: point$4(this, x, y); break;
+ }
+
+ this._l01_a = this._l12_a, this._l12_a = this._l23_a;
+ this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
+ this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+ this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+ }
+};
+
+var catmullRomOpen = ((function custom(alpha) {
+
+ function catmullRom(context) {
+ return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0);
+ }
+
+ catmullRom.alpha = function(alpha) {
+ return custom(+alpha);
+ };
+
+ return catmullRom;
+}))(0.5);
+
+function LinearClosed(context) {
+ this._context = context;
+}
+
+LinearClosed.prototype = {
+ areaStart: noop$2,
+ areaEnd: noop$2,
+ lineStart: function() {
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (this._point) this._context.closePath();
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ if (this._point) this._context.lineTo(x, y);
+ else this._point = 1, this._context.moveTo(x, y);
+ }
+};
+
+var linearClosed = function(context) {
+ return new LinearClosed(context);
+};
+
+function sign$1(x) {
+ return x < 0 ? -1 : 1;
+}
+
+// Calculate the slopes of the tangents (Hermite-type interpolation) based on
+// the following paper: Steffen, M. 1990. A Simple Method for Monotonic
+// Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO.
+// NOV(II), P. 443, 1990.
+function slope3(that, x2, y2) {
+ var h0 = that._x1 - that._x0,
+ h1 = x2 - that._x1,
+ s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0),
+ s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0),
+ p = (s0 * h1 + s1 * h0) / (h0 + h1);
+ return (sign$1(s0) + sign$1(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0;
+}
+
+// Calculate a one-sided slope.
+function slope2(that, t) {
+ var h = that._x1 - that._x0;
+ return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t;
+}
+
+// According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations
+// "you can express cubic Hermite interpolation in terms of cubic Bézier curves
+// with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1".
+function point$5(that, t0, t1) {
+ var x0 = that._x0,
+ y0 = that._y0,
+ x1 = that._x1,
+ y1 = that._y1,
+ dx = (x1 - x0) / 3;
+ that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1);
+}
+
+function MonotoneX(context) {
+ this._context = context;
+}
+
+MonotoneX.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x0 = this._x1 =
+ this._y0 = this._y1 =
+ this._t0 = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ switch (this._point) {
+ case 2: this._context.lineTo(this._x1, this._y1); break;
+ case 3: point$5(this, this._t0, slope2(this, this._t0)); break;
+ }
+ if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
+ this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ var t1 = NaN;
+
+ x = +x, y = +y;
+ if (x === this._x1 && y === this._y1) return; // Ignore coincident points.
+ switch (this._point) {
+ case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
+ case 1: this._point = 2; break;
+ case 2: this._point = 3; point$5(this, slope2(this, t1 = slope3(this, x, y)), t1); break;
+ default: point$5(this, this._t0, t1 = slope3(this, x, y)); break;
+ }
+
+ this._x0 = this._x1, this._x1 = x;
+ this._y0 = this._y1, this._y1 = y;
+ this._t0 = t1;
+ }
+};
+
+function MonotoneY(context) {
+ this._context = new ReflectContext(context);
+}
+
+(MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) {
+ MonotoneX.prototype.point.call(this, y, x);
+};
+
+function ReflectContext(context) {
+ this._context = context;
+}
+
+ReflectContext.prototype = {
+ moveTo: function(x, y) { this._context.moveTo(y, x); },
+ closePath: function() { this._context.closePath(); },
+ lineTo: function(x, y) { this._context.lineTo(y, x); },
+ bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); }
+};
+
+function monotoneX(context) {
+ return new MonotoneX(context);
+}
+
+function monotoneY(context) {
+ return new MonotoneY(context);
+}
+
+function Natural(context) {
+ this._context = context;
+}
+
+Natural.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x = [];
+ this._y = [];
+ },
+ lineEnd: function() {
+ var x = this._x,
+ y = this._y,
+ n = x.length;
+
+ if (n) {
+ this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]);
+ if (n === 2) {
+ this._context.lineTo(x[1], y[1]);
+ } else {
+ var px = controlPoints(x),
+ py = controlPoints(y);
+ for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) {
+ this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]);
+ }
+ }
+ }
+
+ if (this._line || (this._line !== 0 && n === 1)) this._context.closePath();
+ this._line = 1 - this._line;
+ this._x = this._y = null;
+ },
+ point: function(x, y) {
+ this._x.push(+x);
+ this._y.push(+y);
+ }
+};
+
+// See https://www.particleincell.com/2012/bezier-splines/ for derivation.
+function controlPoints(x) {
+ var i,
+ n = x.length - 1,
+ m,
+ a = new Array(n),
+ b = new Array(n),
+ r = new Array(n);
+ a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1];
+ for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1];
+ a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n];
+ for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1];
+ a[n - 1] = r[n - 1] / b[n - 1];
+ for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i];
+ b[n - 1] = (x[n] + a[n - 1]) / 2;
+ for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1];
+ return [a, b];
+}
+
+var natural = function(context) {
+ return new Natural(context);
+};
+
+function Step(context, t) {
+ this._context = context;
+ this._t = t;
+}
+
+Step.prototype = {
+ areaStart: function() {
+ this._line = 0;
+ },
+ areaEnd: function() {
+ this._line = NaN;
+ },
+ lineStart: function() {
+ this._x = this._y = NaN;
+ this._point = 0;
+ },
+ lineEnd: function() {
+ if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y);
+ if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
+ if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line;
+ },
+ point: function(x, y) {
+ x = +x, y = +y;
+ switch (this._point) {
+ case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
+ case 1: this._point = 2; // proceed
+ default: {
+ if (this._t <= 0) {
+ this._context.lineTo(this._x, y);
+ this._context.lineTo(x, y);
+ } else {
+ var x1 = this._x * (1 - this._t) + x * this._t;
+ this._context.lineTo(x1, this._y);
+ this._context.lineTo(x1, y);
+ }
+ break;
+ }
+ }
+ this._x = x, this._y = y;
+ }
+};
+
+var step = function(context) {
+ return new Step(context, 0.5);
+};
+
+function stepBefore(context) {
+ return new Step(context, 0);
+}
+
+function stepAfter(context) {
+ return new Step(context, 1);
+}
+
+var slice$5 = Array.prototype.slice;
+
+var none$1 = function(series, order) {
+ if (!((n = series.length) > 1)) return;
+ for (var i = 1, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) {
+ s0 = s1, s1 = series[order[i]];
+ for (var j = 0; j < m; ++j) {
+ s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1];
+ }
+ }
+};
+
+var none$2 = function(series) {
+ var n = series.length, o = new Array(n);
+ while (--n >= 0) o[n] = n;
+ return o;
+};
+
+function stackValue(d, key) {
+ return d[key];
+}
+
+var stack = function() {
+ var keys = constant$10([]),
+ order = none$2,
+ offset = none$1,
+ value = stackValue;
+
+ function stack(data) {
+ var kz = keys.apply(this, arguments),
+ i,
+ m = data.length,
+ n = kz.length,
+ sz = new Array(n),
+ oz;
+
+ for (i = 0; i < n; ++i) {
+ for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) {
+ si[j] = sij = [0, +value(data[j], ki, j, data)];
+ sij.data = data[j];
+ }
+ si.key = ki;
+ }
+
+ for (i = 0, oz = order(sz); i < n; ++i) {
+ sz[oz[i]].index = i;
+ }
+
+ offset(sz, oz);
+ return sz;
+ }
+
+ stack.keys = function(_) {
+ return arguments.length ? (keys = typeof _ === "function" ? _ : constant$10(slice$5.call(_)), stack) : keys;
+ };
+
+ stack.value = function(_) {
+ return arguments.length ? (value = typeof _ === "function" ? _ : constant$10(+_), stack) : value;
+ };
+
+ stack.order = function(_) {
+ return arguments.length ? (order = _ == null ? none$2 : typeof _ === "function" ? _ : constant$10(slice$5.call(_)), stack) : order;
+ };
+
+ stack.offset = function(_) {
+ return arguments.length ? (offset = _ == null ? none$1 : _, stack) : offset;
+ };
+
+ return stack;
+};
+
+var expand = function(series, order) {
+ if (!((n = series.length) > 0)) return;
+ for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) {
+ for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0;
+ if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y;
+ }
+ none$1(series, order);
+};
+
+var silhouette = function(series, order) {
+ if (!((n = series.length) > 0)) return;
+ for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) {
+ for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0;
+ s0[j][1] += s0[j][0] = -y / 2;
+ }
+ none$1(series, order);
+};
+
+var wiggle = function(series, order) {
+ if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return;
+ for (var y = 0, j = 1, s0, m, n; j < m; ++j) {
+ for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) {
+ var si = series[order[i]],
+ sij0 = si[j][1] || 0,
+ sij1 = si[j - 1][1] || 0,
+ s3 = (sij0 - sij1) / 2;
+ for (var k = 0; k < i; ++k) {
+ var sk = series[order[k]],
+ skj0 = sk[j][1] || 0,
+ skj1 = sk[j - 1][1] || 0;
+ s3 += skj0 - skj1;
+ }
+ s1 += sij0, s2 += s3 * sij0;
+ }
+ s0[j - 1][1] += s0[j - 1][0] = y;
+ if (s1) y -= s2 / s1;
+ }
+ s0[j - 1][1] += s0[j - 1][0] = y;
+ none$1(series, order);
+};
+
+var ascending$2 = function(series) {
+ var sums = series.map(sum$2);
+ return none$2(series).sort(function(a, b) { return sums[a] - sums[b]; });
+};
+
+function sum$2(series) {
+ var s = 0, i = -1, n = series.length, v;
+ while (++i < n) if (v = +series[i][1]) s += v;
+ return s;
+}
+
+var descending$2 = function(series) {
+ return ascending$2(series).reverse();
+};
+
+var insideOut = function(series) {
+ var n = series.length,
+ i,
+ j,
+ sums = series.map(sum$2),
+ order = none$2(series).sort(function(a, b) { return sums[b] - sums[a]; }),
+ top = 0,
+ bottom = 0,
+ tops = [],
+ bottoms = [];
+
+ for (i = 0; i < n; ++i) {
+ j = order[i];
+ if (top < bottom) {
+ top += sums[j];
+ tops.push(j);
+ } else {
+ bottom += sums[j];
+ bottoms.push(j);
+ }
+ }
+
+ return bottoms.reverse().concat(tops);
+};
+
+var reverse = function(series) {
+ return none$2(series).reverse();
+};
+
+var constant$11 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+function x$4(d) {
+ return d[0];
+}
+
+function y$4(d) {
+ return d[1];
+}
+
+function RedBlackTree() {
+ this._ = null; // root node
+}
+
+function RedBlackNode(node) {
+ node.U = // parent node
+ node.C = // color - true for red, false for black
+ node.L = // left node
+ node.R = // right node
+ node.P = // previous node
+ node.N = null; // next node
+}
+
+RedBlackTree.prototype = {
+ constructor: RedBlackTree,
+
+ insert: function(after, node) {
+ var parent, grandpa, uncle;
+
+ if (after) {
+ node.P = after;
+ node.N = after.N;
+ if (after.N) after.N.P = node;
+ after.N = node;
+ if (after.R) {
+ after = after.R;
+ while (after.L) after = after.L;
+ after.L = node;
+ } else {
+ after.R = node;
+ }
+ parent = after;
+ } else if (this._) {
+ after = RedBlackFirst(this._);
+ node.P = null;
+ node.N = after;
+ after.P = after.L = node;
+ parent = after;
+ } else {
+ node.P = node.N = null;
+ this._ = node;
+ parent = null;
+ }
+ node.L = node.R = null;
+ node.U = parent;
+ node.C = true;
+
+ after = node;
+ while (parent && parent.C) {
+ grandpa = parent.U;
+ if (parent === grandpa.L) {
+ uncle = grandpa.R;
+ if (uncle && uncle.C) {
+ parent.C = uncle.C = false;
+ grandpa.C = true;
+ after = grandpa;
+ } else {
+ if (after === parent.R) {
+ RedBlackRotateLeft(this, parent);
+ after = parent;
+ parent = after.U;
+ }
+ parent.C = false;
+ grandpa.C = true;
+ RedBlackRotateRight(this, grandpa);
+ }
+ } else {
+ uncle = grandpa.L;
+ if (uncle && uncle.C) {
+ parent.C = uncle.C = false;
+ grandpa.C = true;
+ after = grandpa;
+ } else {
+ if (after === parent.L) {
+ RedBlackRotateRight(this, parent);
+ after = parent;
+ parent = after.U;
+ }
+ parent.C = false;
+ grandpa.C = true;
+ RedBlackRotateLeft(this, grandpa);
+ }
+ }
+ parent = after.U;
+ }
+ this._.C = false;
+ },
+
+ remove: function(node) {
+ if (node.N) node.N.P = node.P;
+ if (node.P) node.P.N = node.N;
+ node.N = node.P = null;
+
+ var parent = node.U,
+ sibling,
+ left = node.L,
+ right = node.R,
+ next,
+ red;
+
+ if (!left) next = right;
+ else if (!right) next = left;
+ else next = RedBlackFirst(right);
+
+ if (parent) {
+ if (parent.L === node) parent.L = next;
+ else parent.R = next;
+ } else {
+ this._ = next;
+ }
+
+ if (left && right) {
+ red = next.C;
+ next.C = node.C;
+ next.L = left;
+ left.U = next;
+ if (next !== right) {
+ parent = next.U;
+ next.U = node.U;
+ node = next.R;
+ parent.L = node;
+ next.R = right;
+ right.U = next;
+ } else {
+ next.U = parent;
+ parent = next;
+ node = next.R;
+ }
+ } else {
+ red = node.C;
+ node = next;
+ }
+
+ if (node) node.U = parent;
+ if (red) return;
+ if (node && node.C) { node.C = false; return; }
+
+ do {
+ if (node === this._) break;
+ if (node === parent.L) {
+ sibling = parent.R;
+ if (sibling.C) {
+ sibling.C = false;
+ parent.C = true;
+ RedBlackRotateLeft(this, parent);
+ sibling = parent.R;
+ }
+ if ((sibling.L && sibling.L.C)
+ || (sibling.R && sibling.R.C)) {
+ if (!sibling.R || !sibling.R.C) {
+ sibling.L.C = false;
+ sibling.C = true;
+ RedBlackRotateRight(this, sibling);
+ sibling = parent.R;
+ }
+ sibling.C = parent.C;
+ parent.C = sibling.R.C = false;
+ RedBlackRotateLeft(this, parent);
+ node = this._;
+ break;
+ }
+ } else {
+ sibling = parent.L;
+ if (sibling.C) {
+ sibling.C = false;
+ parent.C = true;
+ RedBlackRotateRight(this, parent);
+ sibling = parent.L;
+ }
+ if ((sibling.L && sibling.L.C)
+ || (sibling.R && sibling.R.C)) {
+ if (!sibling.L || !sibling.L.C) {
+ sibling.R.C = false;
+ sibling.C = true;
+ RedBlackRotateLeft(this, sibling);
+ sibling = parent.L;
+ }
+ sibling.C = parent.C;
+ parent.C = sibling.L.C = false;
+ RedBlackRotateRight(this, parent);
+ node = this._;
+ break;
+ }
+ }
+ sibling.C = true;
+ node = parent;
+ parent = parent.U;
+ } while (!node.C);
+
+ if (node) node.C = false;
+ }
+};
+
+function RedBlackRotateLeft(tree, node) {
+ var p = node,
+ q = node.R,
+ parent = p.U;
+
+ if (parent) {
+ if (parent.L === p) parent.L = q;
+ else parent.R = q;
+ } else {
+ tree._ = q;
+ }
+
+ q.U = parent;
+ p.U = q;
+ p.R = q.L;
+ if (p.R) p.R.U = p;
+ q.L = p;
+}
+
+function RedBlackRotateRight(tree, node) {
+ var p = node,
+ q = node.L,
+ parent = p.U;
+
+ if (parent) {
+ if (parent.L === p) parent.L = q;
+ else parent.R = q;
+ } else {
+ tree._ = q;
+ }
+
+ q.U = parent;
+ p.U = q;
+ p.L = q.R;
+ if (p.L) p.L.U = p;
+ q.R = p;
+}
+
+function RedBlackFirst(node) {
+ while (node.L) node = node.L;
+ return node;
+}
+
+function createEdge(left, right, v0, v1) {
+ var edge = [null, null],
+ index = edges.push(edge) - 1;
+ edge.left = left;
+ edge.right = right;
+ if (v0) setEdgeEnd(edge, left, right, v0);
+ if (v1) setEdgeEnd(edge, right, left, v1);
+ cells[left.index].halfedges.push(index);
+ cells[right.index].halfedges.push(index);
+ return edge;
+}
+
+function createBorderEdge(left, v0, v1) {
+ var edge = [v0, v1];
+ edge.left = left;
+ return edge;
+}
+
+function setEdgeEnd(edge, left, right, vertex) {
+ if (!edge[0] && !edge[1]) {
+ edge[0] = vertex;
+ edge.left = left;
+ edge.right = right;
+ } else if (edge.left === right) {
+ edge[1] = vertex;
+ } else {
+ edge[0] = vertex;
+ }
+}
+
+// Liang–Barsky line clipping.
+function clipEdge(edge, x0, y0, x1, y1) {
+ var a = edge[0],
+ b = edge[1],
+ ax = a[0],
+ ay = a[1],
+ bx = b[0],
+ by = b[1],
+ t0 = 0,
+ t1 = 1,
+ dx = bx - ax,
+ dy = by - ay,
+ r;
+
+ r = x0 - ax;
+ if (!dx && r > 0) return;
+ r /= dx;
+ if (dx < 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ } else if (dx > 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ }
+
+ r = x1 - ax;
+ if (!dx && r < 0) return;
+ r /= dx;
+ if (dx < 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ } else if (dx > 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ }
+
+ r = y0 - ay;
+ if (!dy && r > 0) return;
+ r /= dy;
+ if (dy < 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ } else if (dy > 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ }
+
+ r = y1 - ay;
+ if (!dy && r < 0) return;
+ r /= dy;
+ if (dy < 0) {
+ if (r > t1) return;
+ if (r > t0) t0 = r;
+ } else if (dy > 0) {
+ if (r < t0) return;
+ if (r < t1) t1 = r;
+ }
+
+ if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check?
+
+ if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy];
+ if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy];
+ return true;
+}
+
+function connectEdge(edge, x0, y0, x1, y1) {
+ var v1 = edge[1];
+ if (v1) return true;
+
+ var v0 = edge[0],
+ left = edge.left,
+ right = edge.right,
+ lx = left[0],
+ ly = left[1],
+ rx = right[0],
+ ry = right[1],
+ fx = (lx + rx) / 2,
+ fy = (ly + ry) / 2,
+ fm,
+ fb;
+
+ if (ry === ly) {
+ if (fx < x0 || fx >= x1) return;
+ if (lx > rx) {
+ if (!v0) v0 = [fx, y0];
+ else if (v0[1] >= y1) return;
+ v1 = [fx, y1];
+ } else {
+ if (!v0) v0 = [fx, y1];
+ else if (v0[1] < y0) return;
+ v1 = [fx, y0];
+ }
+ } else {
+ fm = (lx - rx) / (ry - ly);
+ fb = fy - fm * fx;
+ if (fm < -1 || fm > 1) {
+ if (lx > rx) {
+ if (!v0) v0 = [(y0 - fb) / fm, y0];
+ else if (v0[1] >= y1) return;
+ v1 = [(y1 - fb) / fm, y1];
+ } else {
+ if (!v0) v0 = [(y1 - fb) / fm, y1];
+ else if (v0[1] < y0) return;
+ v1 = [(y0 - fb) / fm, y0];
+ }
+ } else {
+ if (ly < ry) {
+ if (!v0) v0 = [x0, fm * x0 + fb];
+ else if (v0[0] >= x1) return;
+ v1 = [x1, fm * x1 + fb];
+ } else {
+ if (!v0) v0 = [x1, fm * x1 + fb];
+ else if (v0[0] < x0) return;
+ v1 = [x0, fm * x0 + fb];
+ }
+ }
+ }
+
+ edge[0] = v0;
+ edge[1] = v1;
+ return true;
+}
+
+function clipEdges(x0, y0, x1, y1) {
+ var i = edges.length,
+ edge;
+
+ while (i--) {
+ if (!connectEdge(edge = edges[i], x0, y0, x1, y1)
+ || !clipEdge(edge, x0, y0, x1, y1)
+ || !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$4
+ || Math.abs(edge[0][1] - edge[1][1]) > epsilon$4)) {
+ delete edges[i];
+ }
+ }
+}
+
+function createCell(site) {
+ return cells[site.index] = {
+ site: site,
+ halfedges: []
+ };
+}
+
+function cellHalfedgeAngle(cell, edge) {
+ var site = cell.site,
+ va = edge.left,
+ vb = edge.right;
+ if (site === vb) vb = va, va = site;
+ if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]);
+ if (site === va) va = edge[1], vb = edge[0];
+ else va = edge[0], vb = edge[1];
+ return Math.atan2(va[0] - vb[0], vb[1] - va[1]);
+}
+
+function cellHalfedgeStart(cell, edge) {
+ return edge[+(edge.left !== cell.site)];
+}
+
+function cellHalfedgeEnd(cell, edge) {
+ return edge[+(edge.left === cell.site)];
+}
+
+function sortCellHalfedges() {
+ for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) {
+ if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) {
+ var index = new Array(m),
+ array = new Array(m);
+ for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]);
+ index.sort(function(i, j) { return array[j] - array[i]; });
+ for (j = 0; j < m; ++j) array[j] = halfedges[index[j]];
+ for (j = 0; j < m; ++j) halfedges[j] = array[j];
+ }
+ }
+}
+
+function clipCells(x0, y0, x1, y1) {
+ var nCells = cells.length,
+ iCell,
+ cell,
+ site,
+ iHalfedge,
+ halfedges,
+ nHalfedges,
+ start,
+ startX,
+ startY,
+ end,
+ endX,
+ endY,
+ cover = true;
+
+ for (iCell = 0; iCell < nCells; ++iCell) {
+ if (cell = cells[iCell]) {
+ site = cell.site;
+ halfedges = cell.halfedges;
+ iHalfedge = halfedges.length;
+
+ // Remove any dangling clipped edges.
+ while (iHalfedge--) {
+ if (!edges[halfedges[iHalfedge]]) {
+ halfedges.splice(iHalfedge, 1);
+ }
+ }
+
+ // Insert any border edges as necessary.
+ iHalfedge = 0, nHalfedges = halfedges.length;
+ while (iHalfedge < nHalfedges) {
+ end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1];
+ start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1];
+ if (Math.abs(endX - startX) > epsilon$4 || Math.abs(endY - startY) > epsilon$4) {
+ halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end,
+ Math.abs(endX - x0) < epsilon$4 && y1 - endY > epsilon$4 ? [x0, Math.abs(startX - x0) < epsilon$4 ? startY : y1]
+ : Math.abs(endY - y1) < epsilon$4 && x1 - endX > epsilon$4 ? [Math.abs(startY - y1) < epsilon$4 ? startX : x1, y1]
+ : Math.abs(endX - x1) < epsilon$4 && endY - y0 > epsilon$4 ? [x1, Math.abs(startX - x1) < epsilon$4 ? startY : y0]
+ : Math.abs(endY - y0) < epsilon$4 && endX - x0 > epsilon$4 ? [Math.abs(startY - y0) < epsilon$4 ? startX : x0, y0]
+ : null)) - 1);
+ ++nHalfedges;
+ }
+ }
+
+ if (nHalfedges) cover = false;
+ }
+ }
+
+ // If there weren’t any edges, have the closest site cover the extent.
+ // It doesn’t matter which corner of the extent we measure!
+ if (cover) {
+ var dx, dy, d2, dc = Infinity;
+
+ for (iCell = 0, cover = null; iCell < nCells; ++iCell) {
+ if (cell = cells[iCell]) {
+ site = cell.site;
+ dx = site[0] - x0;
+ dy = site[1] - y0;
+ d2 = dx * dx + dy * dy;
+ if (d2 < dc) dc = d2, cover = cell;
+ }
+ }
+
+ if (cover) {
+ var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0];
+ cover.halfedges.push(
+ edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1,
+ edges.push(createBorderEdge(site, v01, v11)) - 1,
+ edges.push(createBorderEdge(site, v11, v10)) - 1,
+ edges.push(createBorderEdge(site, v10, v00)) - 1
+ );
+ }
+ }
+
+ // Lastly delete any cells with no edges; these were entirely clipped.
+ for (iCell = 0; iCell < nCells; ++iCell) {
+ if (cell = cells[iCell]) {
+ if (!cell.halfedges.length) {
+ delete cells[iCell];
+ }
+ }
+ }
+}
+
+var circlePool = [];
+
+var firstCircle;
+
+function Circle() {
+ RedBlackNode(this);
+ this.x =
+ this.y =
+ this.arc =
+ this.site =
+ this.cy = null;
+}
+
+function attachCircle(arc) {
+ var lArc = arc.P,
+ rArc = arc.N;
+
+ if (!lArc || !rArc) return;
+
+ var lSite = lArc.site,
+ cSite = arc.site,
+ rSite = rArc.site;
+
+ if (lSite === rSite) return;
+
+ var bx = cSite[0],
+ by = cSite[1],
+ ax = lSite[0] - bx,
+ ay = lSite[1] - by,
+ cx = rSite[0] - bx,
+ cy = rSite[1] - by;
+
+ var d = 2 * (ax * cy - ay * cx);
+ if (d >= -epsilon2$2) return;
+
+ var ha = ax * ax + ay * ay,
+ hc = cx * cx + cy * cy,
+ x = (cy * ha - ay * hc) / d,
+ y = (ax * hc - cx * ha) / d;
+
+ var circle = circlePool.pop() || new Circle;
+ circle.arc = arc;
+ circle.site = cSite;
+ circle.x = x + bx;
+ circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom
+
+ arc.circle = circle;
+
+ var before = null,
+ node = circles._;
+
+ while (node) {
+ if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) {
+ if (node.L) node = node.L;
+ else { before = node.P; break; }
+ } else {
+ if (node.R) node = node.R;
+ else { before = node; break; }
+ }
+ }
+
+ circles.insert(before, circle);
+ if (!before) firstCircle = circle;
+}
+
+function detachCircle(arc) {
+ var circle = arc.circle;
+ if (circle) {
+ if (!circle.P) firstCircle = circle.N;
+ circles.remove(circle);
+ circlePool.push(circle);
+ RedBlackNode(circle);
+ arc.circle = null;
+ }
+}
+
+var beachPool = [];
+
+function Beach() {
+ RedBlackNode(this);
+ this.edge =
+ this.site =
+ this.circle = null;
+}
+
+function createBeach(site) {
+ var beach = beachPool.pop() || new Beach;
+ beach.site = site;
+ return beach;
+}
+
+function detachBeach(beach) {
+ detachCircle(beach);
+ beaches.remove(beach);
+ beachPool.push(beach);
+ RedBlackNode(beach);
+}
+
+function removeBeach(beach) {
+ var circle = beach.circle,
+ x = circle.x,
+ y = circle.cy,
+ vertex = [x, y],
+ previous = beach.P,
+ next = beach.N,
+ disappearing = [beach];
+
+ detachBeach(beach);
+
+ var lArc = previous;
+ while (lArc.circle
+ && Math.abs(x - lArc.circle.x) < epsilon$4
+ && Math.abs(y - lArc.circle.cy) < epsilon$4) {
+ previous = lArc.P;
+ disappearing.unshift(lArc);
+ detachBeach(lArc);
+ lArc = previous;
+ }
+
+ disappearing.unshift(lArc);
+ detachCircle(lArc);
+
+ var rArc = next;
+ while (rArc.circle
+ && Math.abs(x - rArc.circle.x) < epsilon$4
+ && Math.abs(y - rArc.circle.cy) < epsilon$4) {
+ next = rArc.N;
+ disappearing.push(rArc);
+ detachBeach(rArc);
+ rArc = next;
+ }
+
+ disappearing.push(rArc);
+ detachCircle(rArc);
+
+ var nArcs = disappearing.length,
+ iArc;
+ for (iArc = 1; iArc < nArcs; ++iArc) {
+ rArc = disappearing[iArc];
+ lArc = disappearing[iArc - 1];
+ setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
+ }
+
+ lArc = disappearing[0];
+ rArc = disappearing[nArcs - 1];
+ rArc.edge = createEdge(lArc.site, rArc.site, null, vertex);
+
+ attachCircle(lArc);
+ attachCircle(rArc);
+}
+
+function addBeach(site) {
+ var x = site[0],
+ directrix = site[1],
+ lArc,
+ rArc,
+ dxl,
+ dxr,
+ node = beaches._;
+
+ while (node) {
+ dxl = leftBreakPoint(node, directrix) - x;
+ if (dxl > epsilon$4) node = node.L; else {
+ dxr = x - rightBreakPoint(node, directrix);
+ if (dxr > epsilon$4) {
+ if (!node.R) {
+ lArc = node;
+ break;
+ }
+ node = node.R;
+ } else {
+ if (dxl > -epsilon$4) {
+ lArc = node.P;
+ rArc = node;
+ } else if (dxr > -epsilon$4) {
+ lArc = node;
+ rArc = node.N;
+ } else {
+ lArc = rArc = node;
+ }
+ break;
+ }
+ }
+ }
+
+ createCell(site);
+ var newArc = createBeach(site);
+ beaches.insert(lArc, newArc);
+
+ if (!lArc && !rArc) return;
+
+ if (lArc === rArc) {
+ detachCircle(lArc);
+ rArc = createBeach(lArc.site);
+ beaches.insert(newArc, rArc);
+ newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site);
+ attachCircle(lArc);
+ attachCircle(rArc);
+ return;
+ }
+
+ if (!rArc) { // && lArc
+ newArc.edge = createEdge(lArc.site, newArc.site);
+ return;
+ }
+
+ // else lArc !== rArc
+ detachCircle(lArc);
+ detachCircle(rArc);
+
+ var lSite = lArc.site,
+ ax = lSite[0],
+ ay = lSite[1],
+ bx = site[0] - ax,
+ by = site[1] - ay,
+ rSite = rArc.site,
+ cx = rSite[0] - ax,
+ cy = rSite[1] - ay,
+ d = 2 * (bx * cy - by * cx),
+ hb = bx * bx + by * by,
+ hc = cx * cx + cy * cy,
+ vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay];
+
+ setEdgeEnd(rArc.edge, lSite, rSite, vertex);
+ newArc.edge = createEdge(lSite, site, null, vertex);
+ rArc.edge = createEdge(site, rSite, null, vertex);
+ attachCircle(lArc);
+ attachCircle(rArc);
+}
+
+function leftBreakPoint(arc, directrix) {
+ var site = arc.site,
+ rfocx = site[0],
+ rfocy = site[1],
+ pby2 = rfocy - directrix;
+
+ if (!pby2) return rfocx;
+
+ var lArc = arc.P;
+ if (!lArc) return -Infinity;
+
+ site = lArc.site;
+ var lfocx = site[0],
+ lfocy = site[1],
+ plby2 = lfocy - directrix;
+
+ if (!plby2) return lfocx;
+
+ var hl = lfocx - rfocx,
+ aby2 = 1 / pby2 - 1 / plby2,
+ b = hl / plby2;
+
+ if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
+
+ return (rfocx + lfocx) / 2;
+}
+
+function rightBreakPoint(arc, directrix) {
+ var rArc = arc.N;
+ if (rArc) return leftBreakPoint(rArc, directrix);
+ var site = arc.site;
+ return site[1] === directrix ? site[0] : Infinity;
+}
+
+var epsilon$4 = 1e-6;
+var epsilon2$2 = 1e-12;
+var beaches;
+var cells;
+var circles;
+var edges;
+
+function triangleArea(a, b, c) {
+ return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]);
+}
+
+function lexicographic(a, b) {
+ return b[1] - a[1]
+ || b[0] - a[0];
+}
+
+function Diagram(sites, extent) {
+ var site = sites.sort(lexicographic).pop(),
+ x,
+ y,
+ circle;
+
+ edges = [];
+ cells = new Array(sites.length);
+ beaches = new RedBlackTree;
+ circles = new RedBlackTree;
+
+ while (true) {
+ circle = firstCircle;
+ if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) {
+ if (site[0] !== x || site[1] !== y) {
+ addBeach(site);
+ x = site[0], y = site[1];
+ }
+ site = sites.pop();
+ } else if (circle) {
+ removeBeach(circle.arc);
+ } else {
+ break;
+ }
+ }
+
+ sortCellHalfedges();
+
+ if (extent) {
+ var x0 = +extent[0][0],
+ y0 = +extent[0][1],
+ x1 = +extent[1][0],
+ y1 = +extent[1][1];
+ clipEdges(x0, y0, x1, y1);
+ clipCells(x0, y0, x1, y1);
+ }
+
+ this.edges = edges;
+ this.cells = cells;
+
+ beaches =
+ circles =
+ edges =
+ cells = null;
+}
+
+Diagram.prototype = {
+ constructor: Diagram,
+
+ polygons: function() {
+ var edges = this.edges;
+
+ return this.cells.map(function(cell) {
+ var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); });
+ polygon.data = cell.site.data;
+ return polygon;
+ });
+ },
+
+ triangles: function() {
+ var triangles = [],
+ edges = this.edges;
+
+ this.cells.forEach(function(cell, i) {
+ if (!(m = (halfedges = cell.halfedges).length)) return;
+ var site = cell.site,
+ halfedges,
+ j = -1,
+ m,
+ s0,
+ e1 = edges[halfedges[m - 1]],
+ s1 = e1.left === site ? e1.right : e1.left;
+
+ while (++j < m) {
+ s0 = s1;
+ e1 = edges[halfedges[j]];
+ s1 = e1.left === site ? e1.right : e1.left;
+ if (s0 && s1 && i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) {
+ triangles.push([site.data, s0.data, s1.data]);
+ }
+ }
+ });
+
+ return triangles;
+ },
+
+ links: function() {
+ return this.edges.filter(function(edge) {
+ return edge.right;
+ }).map(function(edge) {
+ return {
+ source: edge.left.data,
+ target: edge.right.data
+ };
+ });
+ },
+
+ find: function(x, y, radius) {
+ var that = this, i0, i1 = that._found || 0, n = that.cells.length, cell;
+
+ // Use the previously-found cell, or start with an arbitrary one.
+ while (!(cell = that.cells[i1])) if (++i1 >= n) return null;
+ var dx = x - cell.site[0], dy = y - cell.site[1], d2 = dx * dx + dy * dy;
+
+ // Traverse the half-edges to find a closer cell, if any.
+ do {
+ cell = that.cells[i0 = i1], i1 = null;
+ cell.halfedges.forEach(function(e) {
+ var edge = that.edges[e], v = edge.left;
+ if ((v === cell.site || !v) && !(v = edge.right)) return;
+ var vx = x - v[0], vy = y - v[1], v2 = vx * vx + vy * vy;
+ if (v2 < d2) d2 = v2, i1 = v.index;
+ });
+ } while (i1 !== null);
+
+ that._found = i0;
+
+ return radius == null || d2 <= radius * radius ? cell.site : null;
+ }
+};
+
+var voronoi = function() {
+ var x$$1 = x$4,
+ y$$1 = y$4,
+ extent = null;
+
+ function voronoi(data) {
+ return new Diagram(data.map(function(d, i) {
+ var s = [Math.round(x$$1(d, i, data) / epsilon$4) * epsilon$4, Math.round(y$$1(d, i, data) / epsilon$4) * epsilon$4];
+ s.index = i;
+ s.data = d;
+ return s;
+ }), extent);
+ }
+
+ voronoi.polygons = function(data) {
+ return voronoi(data).polygons();
+ };
+
+ voronoi.links = function(data) {
+ return voronoi(data).links();
+ };
+
+ voronoi.triangles = function(data) {
+ return voronoi(data).triangles();
+ };
+
+ voronoi.x = function(_) {
+ return arguments.length ? (x$$1 = typeof _ === "function" ? _ : constant$11(+_), voronoi) : x$$1;
+ };
+
+ voronoi.y = function(_) {
+ return arguments.length ? (y$$1 = typeof _ === "function" ? _ : constant$11(+_), voronoi) : y$$1;
+ };
+
+ voronoi.extent = function(_) {
+ return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]];
+ };
+
+ voronoi.size = function(_) {
+ return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]];
+ };
+
+ return voronoi;
+};
+
+var constant$12 = function(x) {
+ return function() {
+ return x;
+ };
+};
+
+function ZoomEvent(target, type, transform) {
+ this.target = target;
+ this.type = type;
+ this.transform = transform;
+}
+
+function Transform(k, x, y) {
+ this.k = k;
+ this.x = x;
+ this.y = y;
+}
+
+Transform.prototype = {
+ constructor: Transform,
+ scale: function(k) {
+ return k === 1 ? this : new Transform(this.k * k, this.x, this.y);
+ },
+ translate: function(x, y) {
+ return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y);
+ },
+ apply: function(point) {
+ return [point[0] * this.k + this.x, point[1] * this.k + this.y];
+ },
+ applyX: function(x) {
+ return x * this.k + this.x;
+ },
+ applyY: function(y) {
+ return y * this.k + this.y;
+ },
+ invert: function(location) {
+ return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k];
+ },
+ invertX: function(x) {
+ return (x - this.x) / this.k;
+ },
+ invertY: function(y) {
+ return (y - this.y) / this.k;
+ },
+ rescaleX: function(x) {
+ return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x));
+ },
+ rescaleY: function(y) {
+ return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y));
+ },
+ toString: function() {
+ return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")";
+ }
+};
+
+var identity$8 = new Transform(1, 0, 0);
+
+transform$1.prototype = Transform.prototype;
+
+function transform$1(node) {
+ return node.__zoom || identity$8;
+}
+
+function nopropagation$2() {
+ exports.event.stopImmediatePropagation();
+}
+
+var noevent$2 = function() {
+ exports.event.preventDefault();
+ exports.event.stopImmediatePropagation();
+};
+
+// Ignore right-click, since that should open the context menu.
+function defaultFilter$2() {
+ return !exports.event.button;
+}
+
+function defaultExtent$1() {
+ var e = this, w, h;
+ if (e instanceof SVGElement) {
+ e = e.ownerSVGElement || e;
+ w = e.width.baseVal.value;
+ h = e.height.baseVal.value;
+ } else {
+ w = e.clientWidth;
+ h = e.clientHeight;
+ }
+ return [[0, 0], [w, h]];
+}
+
+function defaultTransform() {
+ return this.__zoom || identity$8;
+}
+
+var zoom = function() {
+ var filter = defaultFilter$2,
+ extent = defaultExtent$1,
+ k0 = 0,
+ k1 = Infinity,
+ x0 = -k1,
+ x1 = k1,
+ y0 = x0,
+ y1 = x1,
+ duration = 250,
+ interpolate$$1 = interpolateZoom,
+ gestures = [],
+ listeners = dispatch("start", "zoom", "end"),
+ touchstarting,
+ touchending,
+ touchDelay = 500,
+ wheelDelay = 150;
+
+ function zoom(selection$$1) {
+ selection$$1
+ .on("wheel.zoom", wheeled)
+ .on("mousedown.zoom", mousedowned)
+ .on("dblclick.zoom", dblclicked)
+ .on("touchstart.zoom", touchstarted)
+ .on("touchmove.zoom", touchmoved)
+ .on("touchend.zoom touchcancel.zoom", touchended)
+ .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)")
+ .property("__zoom", defaultTransform);
+ }
+
+ zoom.transform = function(collection, transform) {
+ var selection$$1 = collection.selection ? collection.selection() : collection;
+ selection$$1.property("__zoom", defaultTransform);
+ if (collection !== selection$$1) {
+ schedule(collection, transform);
+ } else {
+ selection$$1.interrupt().each(function() {
+ gesture(this, arguments)
+ .start()
+ .zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform)
+ .end();
+ });
+ }
+ };
+
+ zoom.scaleBy = function(selection$$1, k) {
+ zoom.scaleTo(selection$$1, function() {
+ var k0 = this.__zoom.k,
+ k1 = typeof k === "function" ? k.apply(this, arguments) : k;
+ return k0 * k1;
+ });
+ };
+
+ zoom.scaleTo = function(selection$$1, k) {
+ zoom.transform(selection$$1, function() {
+ var e = extent.apply(this, arguments),
+ t0 = this.__zoom,
+ p0 = centroid(e),
+ p1 = t0.invert(p0),
+ k1 = typeof k === "function" ? k.apply(this, arguments) : k;
+ return constrain(translate(scale(t0, k1), p0, p1), e);
+ });
+ };
+
+ zoom.translateBy = function(selection$$1, x, y) {
+ zoom.transform(selection$$1, function() {
+ return constrain(this.__zoom.translate(
+ typeof x === "function" ? x.apply(this, arguments) : x,
+ typeof y === "function" ? y.apply(this, arguments) : y
+ ), extent.apply(this, arguments));
+ });
+ };
+
+ function scale(transform, k) {
+ k = Math.max(k0, Math.min(k1, k));
+ return k === transform.k ? transform : new Transform(k, transform.x, transform.y);
+ }
+
+ function translate(transform, p0, p1) {
+ var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k;
+ return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y);
+ }
+
+ function constrain(transform, extent) {
+ var dx0 = transform.invertX(extent[0][0]) - x0,
+ dx1 = transform.invertX(extent[1][0]) - x1,
+ dy0 = transform.invertY(extent[0][1]) - y0,
+ dy1 = transform.invertY(extent[1][1]) - y1;
+ return transform.translate(
+ dx1 > dx0 ? (dx0 + dx1) / 2 : Math.min(0, dx0) || Math.max(0, dx1),
+ dy1 > dy0 ? (dy0 + dy1) / 2 : Math.min(0, dy0) || Math.max(0, dy1)
+ );
+ }
+
+ function centroid(extent) {
+ return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2];
+ }
+
+ function schedule(transition$$1, transform, center) {
+ transition$$1
+ .on("start.zoom", function() { gesture(this, arguments).start(); })
+ .on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); })
+ .tween("zoom", function() {
+ var that = this,
+ args = arguments,
+ g = gesture(that, args),
+ e = extent.apply(that, args),
+ p = center || centroid(e),
+ w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]),
+ a = that.__zoom,
+ b = typeof transform === "function" ? transform.apply(that, args) : transform,
+ i = interpolate$$1(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k));
+ return function(t) {
+ if (t === 1) t = b; // Avoid rounding error on end.
+ else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); }
+ g.zoom(null, t);
+ };
+ });
+ }
+
+ function gesture(that, args) {
+ for (var i = 0, n = gestures.length, g; i < n; ++i) {
+ if ((g = gestures[i]).that === that) {
+ return g;
+ }
+ }
+ return new Gesture(that, args);
+ }
+
+ function Gesture(that, args) {
+ this.that = that;
+ this.args = args;
+ this.index = -1;
+ this.active = 0;
+ this.extent = extent.apply(that, args);
+ }
+
+ Gesture.prototype = {
+ start: function() {
+ if (++this.active === 1) {
+ this.index = gestures.push(this) - 1;
+ this.emit("start");
+ }
+ return this;
+ },
+ zoom: function(key, transform) {
+ if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]);
+ if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]);
+ if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]);
+ this.that.__zoom = transform;
+ this.emit("zoom");
+ return this;
+ },
+ end: function() {
+ if (--this.active === 0) {
+ gestures.splice(this.index, 1);
+ this.index = -1;
+ this.emit("end");
+ }
+ return this;
+ },
+ emit: function(type) {
+ customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]);
+ }
+ };
+
+ function wheeled() {
+ if (!filter.apply(this, arguments)) return;
+ var g = gesture(this, arguments),
+ t = this.__zoom,
+ k = Math.max(k0, Math.min(k1, t.k * Math.pow(2, -exports.event.deltaY * (exports.event.deltaMode ? 120 : 1) / 500))),
+ p = mouse(this);
+
+ // If the mouse is in the same location as before, reuse it.
+ // If there were recent wheel events, reset the wheel idle timeout.
+ if (g.wheel) {
+ if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) {
+ g.mouse[1] = t.invert(g.mouse[0] = p);
+ }
+ clearTimeout(g.wheel);
+ }
+
+ // If this wheel event won’t trigger a transform change, ignore it.
+ else if (t.k === k) return;
+
+ // Otherwise, capture the mouse point and location at the start.
+ else {
+ g.mouse = [p, t.invert(p)];
+ interrupt(this);
+ g.start();
+ }
+
+ noevent$2();
+ g.wheel = setTimeout(wheelidled, wheelDelay);
+ g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent));
+
+ function wheelidled() {
+ g.wheel = null;
+ g.end();
+ }
+ }
+
+ function mousedowned() {
+ if (touchending || !filter.apply(this, arguments)) return;
+ var g = gesture(this, arguments),
+ v = select(exports.event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true),
+ p = mouse(this);
+
+ dragDisable(exports.event.view);
+ nopropagation$2();
+ g.mouse = [p, this.__zoom.invert(p)];
+ interrupt(this);
+ g.start();
+
+ function mousemoved() {
+ noevent$2();
+ g.moved = true;
+ g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent));
+ }
+
+ function mouseupped() {
+ v.on("mousemove.zoom mouseup.zoom", null);
+ yesdrag(exports.event.view, g.moved);
+ noevent$2();
+ g.end();
+ }
+ }
+
+ function dblclicked() {
+ if (!filter.apply(this, arguments)) return;
+ var t0 = this.__zoom,
+ p0 = mouse(this),
+ p1 = t0.invert(p0),
+ k1 = t0.k * (exports.event.shiftKey ? 0.5 : 2),
+ t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments));
+
+ noevent$2();
+ if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0);
+ else select(this).call(zoom.transform, t1);
+ }
+
+ function touchstarted() {
+ if (!filter.apply(this, arguments)) return;
+ var g = gesture(this, arguments),
+ touches$$1 = exports.event.changedTouches,
+ started,
+ n = touches$$1.length, i, t, p;
+
+ nopropagation$2();
+ for (i = 0; i < n; ++i) {
+ t = touches$$1[i], p = touch(this, touches$$1, t.identifier);
+ p = [p, this.__zoom.invert(p), t.identifier];
+ if (!g.touch0) g.touch0 = p, started = true;
+ else if (!g.touch1) g.touch1 = p;
+ }
+
+ // If this is a dbltap, reroute to the (optional) dblclick.zoom handler.
+ if (touchstarting) {
+ touchstarting = clearTimeout(touchstarting);
+ if (!g.touch1) {
+ g.end();
+ p = select(this).on("dblclick.zoom");
+ if (p) p.apply(this, arguments);
+ return;
+ }
+ }
+
+ if (started) {
+ touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay);
+ interrupt(this);
+ g.start();
+ }
+ }
+
+ function touchmoved() {
+ var g = gesture(this, arguments),
+ touches$$1 = exports.event.changedTouches,
+ n = touches$$1.length, i, t, p, l;
+
+ noevent$2();
+ if (touchstarting) touchstarting = clearTimeout(touchstarting);
+ for (i = 0; i < n; ++i) {
+ t = touches$$1[i], p = touch(this, touches$$1, t.identifier);
+ if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p;
+ else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p;
+ }
+ t = g.that.__zoom;
+ if (g.touch1) {
+ var p0 = g.touch0[0], l0 = g.touch0[1],
+ p1 = g.touch1[0], l1 = g.touch1[1],
+ dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp,
+ dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl;
+ t = scale(t, Math.sqrt(dp / dl));
+ p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2];
+ l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2];
+ }
+ else if (g.touch0) p = g.touch0[0], l = g.touch0[1];
+ else return;
+ g.zoom("touch", constrain(translate(t, p, l), g.extent));
+ }
+
+ function touchended() {
+ var g = gesture(this, arguments),
+ touches$$1 = exports.event.changedTouches,
+ n = touches$$1.length, i, t;
+
+ nopropagation$2();
+ if (touchending) clearTimeout(touchending);
+ touchending = setTimeout(function() { touchending = null; }, touchDelay);
+ for (i = 0; i < n; ++i) {
+ t = touches$$1[i];
+ if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0;
+ else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1;
+ }
+ if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1;
+ if (g.touch0) g.touch0[1] = this.__zoom.invert(g.touch0[0]);
+ else g.end();
+ }
+
+ zoom.filter = function(_) {
+ return arguments.length ? (filter = typeof _ === "function" ? _ : constant$12(!!_), zoom) : filter;
+ };
+
+ zoom.extent = function(_) {
+ return arguments.length ? (extent = typeof _ === "function" ? _ : constant$12([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent;
+ };
+
+ zoom.scaleExtent = function(_) {
+ return arguments.length ? (k0 = +_[0], k1 = +_[1], zoom) : [k0, k1];
+ };
+
+ zoom.translateExtent = function(_) {
+ return arguments.length ? (x0 = +_[0][0], x1 = +_[1][0], y0 = +_[0][1], y1 = +_[1][1], zoom) : [[x0, y0], [x1, y1]];
+ };
+
+ zoom.duration = function(_) {
+ return arguments.length ? (duration = +_, zoom) : duration;
+ };
+
+ zoom.interpolate = function(_) {
+ return arguments.length ? (interpolate$$1 = _, zoom) : interpolate$$1;
+ };
+
+ zoom.on = function() {
+ var value = listeners.on.apply(listeners, arguments);
+ return value === listeners ? zoom : value;
+ };
+
+ return zoom;
+};
+
+exports.version = version;
+exports.bisect = bisectRight;
+exports.bisectRight = bisectRight;
+exports.bisectLeft = bisectLeft;
+exports.ascending = ascending;
+exports.bisector = bisector;
+exports.cross = cross;
+exports.descending = descending;
+exports.deviation = deviation;
+exports.extent = extent;
+exports.histogram = histogram;
+exports.thresholdFreedmanDiaconis = freedmanDiaconis;
+exports.thresholdScott = scott;
+exports.thresholdSturges = sturges;
+exports.max = max;
+exports.mean = mean;
+exports.median = median;
+exports.merge = merge;
+exports.min = min;
+exports.pairs = pairs;
+exports.permute = permute;
+exports.quantile = threshold;
+exports.range = sequence;
+exports.scan = scan;
+exports.shuffle = shuffle;
+exports.sum = sum;
+exports.ticks = ticks;
+exports.tickIncrement = tickIncrement;
+exports.tickStep = tickStep;
+exports.transpose = transpose;
+exports.variance = variance;
+exports.zip = zip;
+exports.axisTop = axisTop;
+exports.axisRight = axisRight;
+exports.axisBottom = axisBottom;
+exports.axisLeft = axisLeft;
+exports.brush = brush;
+exports.brushX = brushX;
+exports.brushY = brushY;
+exports.brushSelection = brushSelection;
+exports.chord = chord;
+exports.ribbon = ribbon;
+exports.nest = nest;
+exports.set = set$2;
+exports.map = map$1;
+exports.keys = keys;
+exports.values = values;
+exports.entries = entries;
+exports.color = color;
+exports.rgb = rgb;
+exports.hsl = hsl;
+exports.lab = lab;
+exports.hcl = hcl;
+exports.cubehelix = cubehelix;
+exports.dispatch = dispatch;
+exports.drag = drag;
+exports.dragDisable = dragDisable;
+exports.dragEnable = yesdrag;
+exports.dsvFormat = dsv;
+exports.csvParse = csvParse;
+exports.csvParseRows = csvParseRows;
+exports.csvFormat = csvFormat;
+exports.csvFormatRows = csvFormatRows;
+exports.tsvParse = tsvParse;
+exports.tsvParseRows = tsvParseRows;
+exports.tsvFormat = tsvFormat;
+exports.tsvFormatRows = tsvFormatRows;
+exports.easeLinear = linear$1;
+exports.easeQuad = quadInOut;
+exports.easeQuadIn = quadIn;
+exports.easeQuadOut = quadOut;
+exports.easeQuadInOut = quadInOut;
+exports.easeCubic = cubicInOut;
+exports.easeCubicIn = cubicIn;
+exports.easeCubicOut = cubicOut;
+exports.easeCubicInOut = cubicInOut;
+exports.easePoly = polyInOut;
+exports.easePolyIn = polyIn;
+exports.easePolyOut = polyOut;
+exports.easePolyInOut = polyInOut;
+exports.easeSin = sinInOut;
+exports.easeSinIn = sinIn;
+exports.easeSinOut = sinOut;
+exports.easeSinInOut = sinInOut;
+exports.easeExp = expInOut;
+exports.easeExpIn = expIn;
+exports.easeExpOut = expOut;
+exports.easeExpInOut = expInOut;
+exports.easeCircle = circleInOut;
+exports.easeCircleIn = circleIn;
+exports.easeCircleOut = circleOut;
+exports.easeCircleInOut = circleInOut;
+exports.easeBounce = bounceOut;
+exports.easeBounceIn = bounceIn;
+exports.easeBounceOut = bounceOut;
+exports.easeBounceInOut = bounceInOut;
+exports.easeBack = backInOut;
+exports.easeBackIn = backIn;
+exports.easeBackOut = backOut;
+exports.easeBackInOut = backInOut;
+exports.easeElastic = elasticOut;
+exports.easeElasticIn = elasticIn;
+exports.easeElasticOut = elasticOut;
+exports.easeElasticInOut = elasticInOut;
+exports.forceCenter = center$1;
+exports.forceCollide = collide;
+exports.forceLink = link;
+exports.forceManyBody = manyBody;
+exports.forceSimulation = simulation;
+exports.forceX = x$2;
+exports.forceY = y$2;
+exports.formatDefaultLocale = defaultLocale;
+exports.formatLocale = formatLocale;
+exports.formatSpecifier = formatSpecifier;
+exports.precisionFixed = precisionFixed;
+exports.precisionPrefix = precisionPrefix;
+exports.precisionRound = precisionRound;
+exports.geoArea = area;
+exports.geoBounds = bounds;
+exports.geoCentroid = centroid;
+exports.geoCircle = circle;
+exports.geoClipExtent = extent$1;
+exports.geoContains = contains;
+exports.geoDistance = distance;
+exports.geoGraticule = graticule;
+exports.geoGraticule10 = graticule10;
+exports.geoInterpolate = interpolate$1;
+exports.geoLength = length$1;
+exports.geoPath = index$1;
+exports.geoAlbers = albers;
+exports.geoAlbersUsa = albersUsa;
+exports.geoAzimuthalEqualArea = azimuthalEqualArea;
+exports.geoAzimuthalEqualAreaRaw = azimuthalEqualAreaRaw;
+exports.geoAzimuthalEquidistant = azimuthalEquidistant;
+exports.geoAzimuthalEquidistantRaw = azimuthalEquidistantRaw;
+exports.geoConicConformal = conicConformal;
+exports.geoConicConformalRaw = conicConformalRaw;
+exports.geoConicEqualArea = conicEqualArea;
+exports.geoConicEqualAreaRaw = conicEqualAreaRaw;
+exports.geoConicEquidistant = conicEquidistant;
+exports.geoConicEquidistantRaw = conicEquidistantRaw;
+exports.geoEquirectangular = equirectangular;
+exports.geoEquirectangularRaw = equirectangularRaw;
+exports.geoGnomonic = gnomonic;
+exports.geoGnomonicRaw = gnomonicRaw;
+exports.geoIdentity = identity$5;
+exports.geoProjection = projection;
+exports.geoProjectionMutator = projectionMutator;
+exports.geoMercator = mercator;
+exports.geoMercatorRaw = mercatorRaw;
+exports.geoOrthographic = orthographic;
+exports.geoOrthographicRaw = orthographicRaw;
+exports.geoStereographic = stereographic;
+exports.geoStereographicRaw = stereographicRaw;
+exports.geoTransverseMercator = transverseMercator;
+exports.geoTransverseMercatorRaw = transverseMercatorRaw;
+exports.geoRotation = rotation;
+exports.geoStream = geoStream;
+exports.geoTransform = transform;
+exports.cluster = cluster;
+exports.hierarchy = hierarchy;
+exports.pack = index$2;
+exports.packSiblings = siblings;
+exports.packEnclose = enclose;
+exports.partition = partition;
+exports.stratify = stratify;
+exports.tree = tree;
+exports.treemap = index$3;
+exports.treemapBinary = binary;
+exports.treemapDice = treemapDice;
+exports.treemapSlice = treemapSlice;
+exports.treemapSliceDice = sliceDice;
+exports.treemapSquarify = squarify;
+exports.treemapResquarify = resquarify;
+exports.interpolate = interpolateValue;
+exports.interpolateArray = array$1;
+exports.interpolateBasis = basis$1;
+exports.interpolateBasisClosed = basisClosed;
+exports.interpolateDate = date;
+exports.interpolateNumber = reinterpolate;
+exports.interpolateObject = object;
+exports.interpolateRound = interpolateRound;
+exports.interpolateString = interpolateString;
+exports.interpolateTransformCss = interpolateTransformCss;
+exports.interpolateTransformSvg = interpolateTransformSvg;
+exports.interpolateZoom = interpolateZoom;
+exports.interpolateRgb = interpolateRgb;
+exports.interpolateRgbBasis = rgbBasis;
+exports.interpolateRgbBasisClosed = rgbBasisClosed;
+exports.interpolateHsl = hsl$2;
+exports.interpolateHslLong = hslLong;
+exports.interpolateLab = lab$1;
+exports.interpolateHcl = hcl$2;
+exports.interpolateHclLong = hclLong;
+exports.interpolateCubehelix = cubehelix$2;
+exports.interpolateCubehelixLong = cubehelixLong;
+exports.quantize = quantize;
+exports.path = path;
+exports.polygonArea = area$1;
+exports.polygonCentroid = centroid$1;
+exports.polygonHull = hull;
+exports.polygonContains = contains$1;
+exports.polygonLength = length$2;
+exports.quadtree = quadtree;
+exports.queue = queue;
+exports.randomUniform = uniform;
+exports.randomNormal = normal;
+exports.randomLogNormal = logNormal;
+exports.randomBates = bates;
+exports.randomIrwinHall = irwinHall;
+exports.randomExponential = exponential$1;
+exports.request = request;
+exports.html = html;
+exports.json = json;
+exports.text = text;
+exports.xml = xml;
+exports.csv = csv$1;
+exports.tsv = tsv$1;
+exports.scaleBand = band;
+exports.scalePoint = point$1;
+exports.scaleIdentity = identity$6;
+exports.scaleLinear = linear$2;
+exports.scaleLog = log$1;
+exports.scaleOrdinal = ordinal;
+exports.scaleImplicit = implicit;
+exports.scalePow = pow$1;
+exports.scaleSqrt = sqrt$1;
+exports.scaleQuantile = quantile$$1;
+exports.scaleQuantize = quantize$1;
+exports.scaleThreshold = threshold$1;
+exports.scaleTime = time;
+exports.scaleUtc = utcTime;
+exports.schemeCategory10 = category10;
+exports.schemeCategory20b = category20b;
+exports.schemeCategory20c = category20c;
+exports.schemeCategory20 = category20;
+exports.interpolateCubehelixDefault = cubehelix$3;
+exports.interpolateRainbow = rainbow$1;
+exports.interpolateWarm = warm;
+exports.interpolateCool = cool;
+exports.interpolateViridis = viridis;
+exports.interpolateMagma = magma;
+exports.interpolateInferno = inferno;
+exports.interpolatePlasma = plasma;
+exports.scaleSequential = sequential;
+exports.creator = creator;
+exports.local = local$1;
+exports.matcher = matcher$1;
+exports.mouse = mouse;
+exports.namespace = namespace;
+exports.namespaces = namespaces;
+exports.select = select;
+exports.selectAll = selectAll;
+exports.selection = selection;
+exports.selector = selector;
+exports.selectorAll = selectorAll;
+exports.touch = touch;
+exports.touches = touches;
+exports.window = window;
+exports.customEvent = customEvent;
+exports.arc = arc;
+exports.area = area$2;
+exports.line = line;
+exports.pie = pie;
+exports.radialArea = radialArea;
+exports.radialLine = radialLine$1;
+exports.symbol = symbol;
+exports.symbols = symbols;
+exports.symbolCircle = circle$2;
+exports.symbolCross = cross$2;
+exports.symbolDiamond = diamond;
+exports.symbolSquare = square;
+exports.symbolStar = star;
+exports.symbolTriangle = triangle;
+exports.symbolWye = wye;
+exports.curveBasisClosed = basisClosed$1;
+exports.curveBasisOpen = basisOpen;
+exports.curveBasis = basis$2;
+exports.curveBundle = bundle;
+exports.curveCardinalClosed = cardinalClosed;
+exports.curveCardinalOpen = cardinalOpen;
+exports.curveCardinal = cardinal;
+exports.curveCatmullRomClosed = catmullRomClosed;
+exports.curveCatmullRomOpen = catmullRomOpen;
+exports.curveCatmullRom = catmullRom;
+exports.curveLinearClosed = linearClosed;
+exports.curveLinear = curveLinear;
+exports.curveMonotoneX = monotoneX;
+exports.curveMonotoneY = monotoneY;
+exports.curveNatural = natural;
+exports.curveStep = step;
+exports.curveStepAfter = stepAfter;
+exports.curveStepBefore = stepBefore;
+exports.stack = stack;
+exports.stackOffsetExpand = expand;
+exports.stackOffsetNone = none$1;
+exports.stackOffsetSilhouette = silhouette;
+exports.stackOffsetWiggle = wiggle;
+exports.stackOrderAscending = ascending$2;
+exports.stackOrderDescending = descending$2;
+exports.stackOrderInsideOut = insideOut;
+exports.stackOrderNone = none$2;
+exports.stackOrderReverse = reverse;
+exports.timeInterval = newInterval;
+exports.timeMillisecond = millisecond;
+exports.timeMilliseconds = milliseconds;
+exports.utcMillisecond = millisecond;
+exports.utcMilliseconds = milliseconds;
+exports.timeSecond = second;
+exports.timeSeconds = seconds;
+exports.utcSecond = second;
+exports.utcSeconds = seconds;
+exports.timeMinute = minute;
+exports.timeMinutes = minutes;
+exports.timeHour = hour;
+exports.timeHours = hours;
+exports.timeDay = day;
+exports.timeDays = days;
+exports.timeWeek = sunday;
+exports.timeWeeks = sundays;
+exports.timeSunday = sunday;
+exports.timeSundays = sundays;
+exports.timeMonday = monday;
+exports.timeMondays = mondays;
+exports.timeTuesday = tuesday;
+exports.timeTuesdays = tuesdays;
+exports.timeWednesday = wednesday;
+exports.timeWednesdays = wednesdays;
+exports.timeThursday = thursday;
+exports.timeThursdays = thursdays;
+exports.timeFriday = friday;
+exports.timeFridays = fridays;
+exports.timeSaturday = saturday;
+exports.timeSaturdays = saturdays;
+exports.timeMonth = month;
+exports.timeMonths = months;
+exports.timeYear = year;
+exports.timeYears = years;
+exports.utcMinute = utcMinute;
+exports.utcMinutes = utcMinutes;
+exports.utcHour = utcHour;
+exports.utcHours = utcHours;
+exports.utcDay = utcDay;
+exports.utcDays = utcDays;
+exports.utcWeek = utcSunday;
+exports.utcWeeks = utcSundays;
+exports.utcSunday = utcSunday;
+exports.utcSundays = utcSundays;
+exports.utcMonday = utcMonday;
+exports.utcMondays = utcMondays;
+exports.utcTuesday = utcTuesday;
+exports.utcTuesdays = utcTuesdays;
+exports.utcWednesday = utcWednesday;
+exports.utcWednesdays = utcWednesdays;
+exports.utcThursday = utcThursday;
+exports.utcThursdays = utcThursdays;
+exports.utcFriday = utcFriday;
+exports.utcFridays = utcFridays;
+exports.utcSaturday = utcSaturday;
+exports.utcSaturdays = utcSaturdays;
+exports.utcMonth = utcMonth;
+exports.utcMonths = utcMonths;
+exports.utcYear = utcYear;
+exports.utcYears = utcYears;
+exports.timeFormatDefaultLocale = defaultLocale$1;
+exports.timeFormatLocale = formatLocale$1;
+exports.isoFormat = formatIso;
+exports.isoParse = parseIso;
+exports.now = now;
+exports.timer = timer;
+exports.timerFlush = timerFlush;
+exports.timeout = timeout$1;
+exports.interval = interval$1;
+exports.transition = transition;
+exports.active = active;
+exports.interrupt = interrupt;
+exports.voronoi = voronoi;
+exports.zoom = zoom;
+exports.zoomTransform = transform$1;
+exports.zoomIdentity = identity$8;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
diff --git a/app/comp-fe/js/d3.min.js b/app/comp-fe/js/d3.min.js
new file mode 100644
index 0000000..cb537e0
--- /dev/null
+++ b/app/comp-fe/js/d3.min.js
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diff --git a/app/comp-fe/js/react.min.js b/app/comp-fe/js/react.min.js
new file mode 100644
index 0000000..64aca4b
--- /dev/null
+++ b/app/comp-fe/js/react.min.js
@@ -0,0 +1,16 @@
+/**
+ * React v0.13.3
+ *
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.React=e()}}(function(){return function e(t,n,r){function o(a,u){if(!n[a]){if(!t[a]){var s="function"==typeof require&&require;if(!u&&s)return s(a,!0);if(i)return i(a,!0);var l=new Error("Cannot find module '"+a+"'");throw l.code="MODULE_NOT_FOUND",l}var c=n[a]={exports:{}};t[a][0].call(c.exports,function(e){var n=t[a][1][e];return o(n?n:e)},c,c.exports,e,t,n,r)}return n[a].exports}for(var i="function"==typeof require&&require,a=0;a<r.length;a++)o(r[a]);return o}({1:[function(e,t,n){"use strict";var r=e(19),o=e(32),i=e(34),a=e(33),u=e(38),s=e(39),l=e(55),c=(e(56),e(40)),p=e(51),d=e(54),f=e(64),h=e(68),m=e(73),v=e(76),g=e(79),y=e(82),C=e(27),E=e(115),b=e(142);d.inject();var 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r=e(15),o=e(20),i=e(97),a=e(68),u=e(139),s=r.topLevelTypes,l=a.getFirstReactDOM,c={mouseEnter:{registrationName:u({onMouseEnter:null}),dependencies:[s.topMouseOut,s.topMouseOver]},mouseLeave:{registrationName:u({onMouseLeave:null}),dependencies:[s.topMouseOut,s.topMouseOver]}},p=[null,null],d={eventTypes:c,extractEvents:function(e,t,n,r){if(e===s.topMouseOver&&(r.relatedTarget||r.fromElement))return null;if(e!==s.topMouseOut&&e!==s.topMouseOver)return null;var u;if(t.window===t)u=t;else{var d=t.ownerDocument;u=d?d.defaultView||d.parentWindow:window}var f,h;if(e===s.topMouseOut?(f=t,h=l(r.relatedTarget||r.toElement)||u):(f=u,h=t),f===h)return null;var m=f?a.getID(f):"",v=h?a.getID(h):"",g=i.getPooled(c.mouseLeave,m,r);g.type="mouseleave",g.target=f,g.relatedTarget=h;var y=i.getPooled(c.mouseEnter,v,r);return y.type="mouseenter",y.target=h,y.relatedTarget=f,o.accumulateEnterLeaveDispatches(g,y,m,v),p[0]=g,p[1]=y,p}};t.exports=d},{139:139,15:15,20:20,68:68,97:97}],15:[function(e,t,n){"use 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r,o=e(10),i=e(21),a=o.injection.MUST_USE_ATTRIBUTE,u=o.injection.MUST_USE_PROPERTY,s=o.injection.HAS_BOOLEAN_VALUE,l=o.injection.HAS_SIDE_EFFECTS,c=o.injection.HAS_NUMERIC_VALUE,p=o.injection.HAS_POSITIVE_NUMERIC_VALUE,d=o.injection.HAS_OVERLOADED_BOOLEAN_VALUE;if(i.canUseDOM){var f=document.implementation;r=f&&f.hasFeature&&f.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure","1.1")}var h={isCustomAttribute:RegExp.prototype.test.bind(/^(data|aria)-[a-z_][a-z\d_.\-]*$/),Properties:{accept:null,acceptCharset:null,accessKey:null,action:null,allowFullScreen:a|s,allowTransparency:a,alt:null,async:s,autoComplete:null,autoPlay:s,cellPadding:null,cellSpacing:null,charSet:a,checked:u|s,classID:a,className:r?a:u,cols:a|p,colSpan:null,content:null,contentEditable:null,contextMenu:a,controls:u|s,coords:null,crossOrigin:null,data:null,dateTime:a,defer:s,dir:null,disabled:a|s,download:d,draggable:null,encType:null,form:a,formAction:a,formEncType:a,formMethod:a,formNoValidate:s,formTarget:a,frameBorder:a,headers:null,height:a,hidden:a|s,high:null,href:null,hrefLang:null,htmlFor:null,httpEquiv:null,icon:null,id:u,label:null,lang:null,list:a,loop:u|s,low:null,manifest:a,marginHeight:null,marginWidth:null,max:null,maxLength:a,media:a,mediaGroup:null,method:null,min:null,multiple:u|s,muted:u|s,name:null,noValidate:s,open:s,optimum:null,pattern:null,placeholder:null,poster:null,preload:null,radioGroup:null,readOnly:u|s,rel:null,required:s,role:a,rows:a|p,rowSpan:null,sandbox:null,scope:null,scoped:s,scrolling:null,seamless:a|s,selected:u|s,shape:null,size:a|p,sizes:a,span:p,spellCheck:null,src:null,srcDoc:u,srcSet:a,start:c,step:null,style:null,tabIndex:null,target:null,title:null,type:null,useMap:null,value:u|l,width:a,wmode:a,autoCapitalize:null,autoCorrect:null,itemProp:a,itemScope:a|s,itemType:a,itemID:a,itemRef:a,property:null,unselectable:a},DOMAttributeNames:{acceptCharset:"accept-charset",className:"class",htmlFor:"for",httpEquiv:"http-equiv"},DOMPropertyNames:{autoCapitalize:"autocapitalize",autoComplete:"autocomplete",autoCorrect:"autocorrect",autoFocus:"autofocus",autoPlay:"autoplay",encType:"encoding",hrefLang:"hreflang",radioGroup:"radiogroup",spellCheck:"spellcheck",srcDoc:"srcdoc",srcSet:"srcset"}};t.exports=h},{10:10,21:21}],24:[function(e,t,n){"use 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This will render a read-only field. If the field should be mutable use `defaultValue`. Otherwise, set either `onChange` or `readOnly`.")},checked:function(e,t,n){return!e[t]||e.onChange||e.readOnly||e.disabled?null:new Error("You provided a `checked` prop to a form field without an `onChange` handler. This will render a read-only field. If the field should be mutable use `defaultChecked`. 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new file mode 100644
index 0000000..11f1d96
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+++ b/app/comp-fe/js/underscore-min.js
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+//# sourceMappingURL=underscore-min.map \ No newline at end of file
diff --git a/app/comp-fe/js/underscore-min.map b/app/comp-fe/js/underscore-min.map
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/app/comp-fe/js/underscore-min.map
diff --git a/app/comp-fe/js/underscore.js b/app/comp-fe/js/underscore.js
new file mode 100644
index 0000000..b50115d
--- /dev/null
+++ b/app/comp-fe/js/underscore.js
@@ -0,0 +1,1276 @@
+// Underscore.js 1.5.2
+// http://underscorejs.org
+// (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+
+(function() {
+
+ // Baseline setup
+ // --------------
+
+ // Establish the root object, `window` in the browser, or `exports` on the server.
+ var root = this;
+
+ // Save the previous value of the `_` variable.
+ var previousUnderscore = root._;
+
+ // Establish the object that gets returned to break out of a loop iteration.
+ var breaker = {};
+
+ // Save bytes in the minified (but not gzipped) version:
+ var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+ // Create quick reference variables for speed access to core prototypes.
+ var
+ push = ArrayProto.push,
+ slice = ArrayProto.slice,
+ concat = ArrayProto.concat,
+ toString = ObjProto.toString,
+ hasOwnProperty = ObjProto.hasOwnProperty;
+
+ // All **ECMAScript 5** native function implementations that we hope to use
+ // are declared here.
+ var
+ nativeForEach = ArrayProto.forEach,
+ nativeMap = ArrayProto.map,
+ nativeReduce = ArrayProto.reduce,
+ nativeReduceRight = ArrayProto.reduceRight,
+ nativeFilter = ArrayProto.filter,
+ nativeEvery = ArrayProto.every,
+ nativeSome = ArrayProto.some,
+ nativeIndexOf = ArrayProto.indexOf,
+ nativeLastIndexOf = ArrayProto.lastIndexOf,
+ nativeIsArray = Array.isArray,
+ nativeKeys = Object.keys,
+ nativeBind = FuncProto.bind;
+
+ // Create a safe reference to the Underscore object for use below.
+ var _ = function(obj) {
+ if (obj instanceof _) return obj;
+ if (!(this instanceof _)) return new _(obj);
+ this._wrapped = obj;
+ };
+
+ // Export the Underscore object for **Node.js**, with
+ // backwards-compatibility for the old `require()` API. If we're in
+ // the browser, add `_` as a global object via a string identifier,
+ // for Closure Compiler "advanced" mode.
+ if (typeof exports !== 'undefined') {
+ if (typeof module !== 'undefined' && module.exports) {
+ exports = module.exports = _;
+ }
+ exports._ = _;
+ } else {
+ root._ = _;
+ }
+
+ // Current version.
+ _.VERSION = '1.5.2';
+
+ // Collection Functions
+ // --------------------
+
+ // The cornerstone, an `each` implementation, aka `forEach`.
+ // Handles objects with the built-in `forEach`, arrays, and raw objects.
+ // Delegates to **ECMAScript 5**'s native `forEach` if available.
+ var each = _.each = _.forEach = function(obj, iterator, context) {
+ if (obj == null) return;
+ if (nativeForEach && obj.forEach === nativeForEach) {
+ obj.forEach(iterator, context);
+ } else if (obj.length === +obj.length) {
+ for (var i = 0, length = obj.length; i < length; i++) {
+ if (iterator.call(context, obj[i], i, obj) === breaker) return;
+ }
+ } else {
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
+ }
+ }
+ };
+
+ // Return the results of applying the iterator to each element.
+ // Delegates to **ECMAScript 5**'s native `map` if available.
+ _.map = _.collect = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
+ each(obj, function(value, index, list) {
+ results.push(iterator.call(context, value, index, list));
+ });
+ return results;
+ };
+
+ var reduceError = 'Reduce of empty array with no initial value';
+
+ // **Reduce** builds up a single result from a list of values, aka `inject`,
+ // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
+ _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
+ var initial = arguments.length > 2;
+ if (obj == null) obj = [];
+ if (nativeReduce && obj.reduce === nativeReduce) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
+ }
+ each(obj, function(value, index, list) {
+ if (!initial) {
+ memo = value;
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, value, index, list);
+ }
+ });
+ if (!initial) throw new TypeError(reduceError);
+ return memo;
+ };
+
+ // The right-associative version of reduce, also known as `foldr`.
+ // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
+ _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+ var initial = arguments.length > 2;
+ if (obj == null) obj = [];
+ if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+ }
+ var length = obj.length;
+ if (length !== +length) {
+ var keys = _.keys(obj);
+ length = keys.length;
+ }
+ each(obj, function(value, index, list) {
+ index = keys ? keys[--length] : --length;
+ if (!initial) {
+ memo = obj[index];
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, obj[index], index, list);
+ }
+ });
+ if (!initial) throw new TypeError(reduceError);
+ return memo;
+ };
+
+ // Return the first value which passes a truth test. Aliased as `detect`.
+ _.find = _.detect = function(obj, iterator, context) {
+ var result;
+ any(obj, function(value, index, list) {
+ if (iterator.call(context, value, index, list)) {
+ result = value;
+ return true;
+ }
+ });
+ return result;
+ };
+
+ // Return all the elements that pass a truth test.
+ // Delegates to **ECMAScript 5**'s native `filter` if available.
+ // Aliased as `select`.
+ _.filter = _.select = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
+ each(obj, function(value, index, list) {
+ if (iterator.call(context, value, index, list)) results.push(value);
+ });
+ return results;
+ };
+
+ // Return all the elements for which a truth test fails.
+ _.reject = function(obj, iterator, context) {
+ return _.filter(obj, function(value, index, list) {
+ return !iterator.call(context, value, index, list);
+ }, context);
+ };
+
+ // Determine whether all of the elements match a truth test.
+ // Delegates to **ECMAScript 5**'s native `every` if available.
+ // Aliased as `all`.
+ _.every = _.all = function(obj, iterator, context) {
+ iterator || (iterator = _.identity);
+ var result = true;
+ if (obj == null) return result;
+ if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
+ each(obj, function(value, index, list) {
+ if (!(result = result && iterator.call(context, value, index, list))) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if at least one element in the object matches a truth test.
+ // Delegates to **ECMAScript 5**'s native `some` if available.
+ // Aliased as `any`.
+ var any = _.some = _.any = function(obj, iterator, context) {
+ iterator || (iterator = _.identity);
+ var result = false;
+ if (obj == null) return result;
+ if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
+ each(obj, function(value, index, list) {
+ if (result || (result = iterator.call(context, value, index, list))) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if the array or object contains a given value (using `===`).
+ // Aliased as `include`.
+ _.contains = _.include = function(obj, target) {
+ if (obj == null) return false;
+ if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
+ return any(obj, function(value) {
+ return value === target;
+ });
+ };
+
+ // Invoke a method (with arguments) on every item in a collection.
+ _.invoke = function(obj, method) {
+ var args = slice.call(arguments, 2);
+ var isFunc = _.isFunction(method);
+ return _.map(obj, function(value) {
+ return (isFunc ? method : value[method]).apply(value, args);
+ });
+ };
+
+ // Convenience version of a common use case of `map`: fetching a property.
+ _.pluck = function(obj, key) {
+ return _.map(obj, function(value){ return value[key]; });
+ };
+
+ // Convenience version of a common use case of `filter`: selecting only objects
+ // containing specific `key:value` pairs.
+ _.where = function(obj, attrs, first) {
+ if (_.isEmpty(attrs)) return first ? void 0 : [];
+ return _[first ? 'find' : 'filter'](obj, function(value) {
+ for (var key in attrs) {
+ if (attrs[key] !== value[key]) return false;
+ }
+ return true;
+ });
+ };
+
+ // Convenience version of a common use case of `find`: getting the first object
+ // containing specific `key:value` pairs.
+ _.findWhere = function(obj, attrs) {
+ return _.where(obj, attrs, true);
+ };
+
+ // Return the maximum element or (element-based computation).
+ // Can't optimize arrays of integers longer than 65,535 elements.
+ // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
+ _.max = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+ return Math.max.apply(Math, obj);
+ }
+ if (!iterator && _.isEmpty(obj)) return -Infinity;
+ var result = {computed : -Infinity, value: -Infinity};
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ computed > result.computed && (result = {value : value, computed : computed});
+ });
+ return result.value;
+ };
+
+ // Return the minimum element (or element-based computation).
+ _.min = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+ return Math.min.apply(Math, obj);
+ }
+ if (!iterator && _.isEmpty(obj)) return Infinity;
+ var result = {computed : Infinity, value: Infinity};
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ computed < result.computed && (result = {value : value, computed : computed});
+ });
+ return result.value;
+ };
+
+ // Shuffle an array, using the modern version of the
+ // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
+ _.shuffle = function(obj) {
+ var rand;
+ var index = 0;
+ var shuffled = [];
+ each(obj, function(value) {
+ rand = _.random(index++);
+ shuffled[index - 1] = shuffled[rand];
+ shuffled[rand] = value;
+ });
+ return shuffled;
+ };
+
+ // Sample **n** random values from an array.
+ // If **n** is not specified, returns a single random element from the array.
+ // The internal `guard` argument allows it to work with `map`.
+ _.sample = function(obj, n, guard) {
+ if (arguments.length < 2 || guard) {
+ return obj[_.random(obj.length - 1)];
+ }
+ return _.shuffle(obj).slice(0, Math.max(0, n));
+ };
+
+ // An internal function to generate lookup iterators.
+ var lookupIterator = function(value) {
+ return _.isFunction(value) ? value : function(obj){ return obj[value]; };
+ };
+
+ // Sort the object's values by a criterion produced by an iterator.
+ _.sortBy = function(obj, value, context) {
+ var iterator = lookupIterator(value);
+ return _.pluck(_.map(obj, function(value, index, list) {
+ return {
+ value: value,
+ index: index,
+ criteria: iterator.call(context, value, index, list)
+ };
+ }).sort(function(left, right) {
+ var a = left.criteria;
+ var b = right.criteria;
+ if (a !== b) {
+ if (a > b || a === void 0) return 1;
+ if (a < b || b === void 0) return -1;
+ }
+ return left.index - right.index;
+ }), 'value');
+ };
+
+ // An internal function used for aggregate "group by" operations.
+ var group = function(behavior) {
+ return function(obj, value, context) {
+ var result = {};
+ var iterator = value == null ? _.identity : lookupIterator(value);
+ each(obj, function(value, index) {
+ var key = iterator.call(context, value, index, obj);
+ behavior(result, key, value);
+ });
+ return result;
+ };
+ };
+
+ // Groups the object's values by a criterion. Pass either a string attribute
+ // to group by, or a function that returns the criterion.
+ _.groupBy = group(function(result, key, value) {
+ (_.has(result, key) ? result[key] : (result[key] = [])).push(value);
+ });
+
+ // Indexes the object's values by a criterion, similar to `groupBy`, but for
+ // when you know that your index values will be unique.
+ _.indexBy = group(function(result, key, value) {
+ result[key] = value;
+ });
+
+ // Counts instances of an object that group by a certain criterion. Pass
+ // either a string attribute to count by, or a function that returns the
+ // criterion.
+ _.countBy = group(function(result, key) {
+ _.has(result, key) ? result[key]++ : result[key] = 1;
+ });
+
+ // Use a comparator function to figure out the smallest index at which
+ // an object should be inserted so as to maintain order. Uses binary search.
+ _.sortedIndex = function(array, obj, iterator, context) {
+ iterator = iterator == null ? _.identity : lookupIterator(iterator);
+ var value = iterator.call(context, obj);
+ var low = 0, high = array.length;
+ while (low < high) {
+ var mid = (low + high) >>> 1;
+ iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
+ }
+ return low;
+ };
+
+ // Safely create a real, live array from anything iterable.
+ _.toArray = function(obj) {
+ if (!obj) return [];
+ if (_.isArray(obj)) return slice.call(obj);
+ if (obj.length === +obj.length) return _.map(obj, _.identity);
+ return _.values(obj);
+ };
+
+ // Return the number of elements in an object.
+ _.size = function(obj) {
+ if (obj == null) return 0;
+ return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
+ };
+
+ // Array Functions
+ // ---------------
+
+ // Get the first element of an array. Passing **n** will return the first N
+ // values in the array. Aliased as `head` and `take`. The **guard** check
+ // allows it to work with `_.map`.
+ _.first = _.head = _.take = function(array, n, guard) {
+ if (array == null) return void 0;
+ return (n == null) || guard ? array[0] : slice.call(array, 0, n);
+ };
+
+ // Returns everything but the last entry of the array. Especially useful on
+ // the arguments object. Passing **n** will return all the values in
+ // the array, excluding the last N. The **guard** check allows it to work with
+ // `_.map`.
+ _.initial = function(array, n, guard) {
+ return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
+ };
+
+ // Get the last element of an array. Passing **n** will return the last N
+ // values in the array. The **guard** check allows it to work with `_.map`.
+ _.last = function(array, n, guard) {
+ if (array == null) return void 0;
+ if ((n == null) || guard) {
+ return array[array.length - 1];
+ } else {
+ return slice.call(array, Math.max(array.length - n, 0));
+ }
+ };
+
+ // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
+ // Especially useful on the arguments object. Passing an **n** will return
+ // the rest N values in the array. The **guard**
+ // check allows it to work with `_.map`.
+ _.rest = _.tail = _.drop = function(array, n, guard) {
+ return slice.call(array, (n == null) || guard ? 1 : n);
+ };
+
+ // Trim out all falsy values from an array.
+ _.compact = function(array) {
+ return _.filter(array, _.identity);
+ };
+
+ // Internal implementation of a recursive `flatten` function.
+ var flatten = function(input, shallow, output) {
+ if (shallow && _.every(input, _.isArray)) {
+ return concat.apply(output, input);
+ }
+ each(input, function(value) {
+ if (_.isArray(value) || _.isArguments(value)) {
+ shallow ? push.apply(output, value) : flatten(value, shallow, output);
+ } else {
+ output.push(value);
+ }
+ });
+ return output;
+ };
+
+ // Flatten out an array, either recursively (by default), or just one level.
+ _.flatten = function(array, shallow) {
+ return flatten(array, shallow, []);
+ };
+
+ // Return a version of the array that does not contain the specified value(s).
+ _.without = function(array) {
+ return _.difference(array, slice.call(arguments, 1));
+ };
+
+ // Produce a duplicate-free version of the array. If the array has already
+ // been sorted, you have the option of using a faster algorithm.
+ // Aliased as `unique`.
+ _.uniq = _.unique = function(array, isSorted, iterator, context) {
+ if (_.isFunction(isSorted)) {
+ context = iterator;
+ iterator = isSorted;
+ isSorted = false;
+ }
+ var initial = iterator ? _.map(array, iterator, context) : array;
+ var results = [];
+ var seen = [];
+ each(initial, function(value, index) {
+ if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
+ seen.push(value);
+ results.push(array[index]);
+ }
+ });
+ return results;
+ };
+
+ // Produce an array that contains the union: each distinct element from all of
+ // the passed-in arrays.
+ _.union = function() {
+ return _.uniq(_.flatten(arguments, true));
+ };
+
+ // Produce an array that contains every item shared between all the
+ // passed-in arrays.
+ _.intersection = function(array) {
+ var rest = slice.call(arguments, 1);
+ return _.filter(_.uniq(array), function(item) {
+ return _.every(rest, function(other) {
+ return _.indexOf(other, item) >= 0;
+ });
+ });
+ };
+
+ // Take the difference between one array and a number of other arrays.
+ // Only the elements present in just the first array will remain.
+ _.difference = function(array) {
+ var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
+ return _.filter(array, function(value){ return !_.contains(rest, value); });
+ };
+
+ // Zip together multiple lists into a single array -- elements that share
+ // an index go together.
+ _.zip = function() {
+ var length = _.max(_.pluck(arguments, "length").concat(0));
+ var results = new Array(length);
+ for (var i = 0; i < length; i++) {
+ results[i] = _.pluck(arguments, '' + i);
+ }
+ return results;
+ };
+
+ // Converts lists into objects. Pass either a single array of `[key, value]`
+ // pairs, or two parallel arrays of the same length -- one of keys, and one of
+ // the corresponding values.
+ _.object = function(list, values) {
+ if (list == null) return {};
+ var result = {};
+ for (var i = 0, length = list.length; i < length; i++) {
+ if (values) {
+ result[list[i]] = values[i];
+ } else {
+ result[list[i][0]] = list[i][1];
+ }
+ }
+ return result;
+ };
+
+ // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
+ // we need this function. Return the position of the first occurrence of an
+ // item in an array, or -1 if the item is not included in the array.
+ // Delegates to **ECMAScript 5**'s native `indexOf` if available.
+ // If the array is large and already in sort order, pass `true`
+ // for **isSorted** to use binary search.
+ _.indexOf = function(array, item, isSorted) {
+ if (array == null) return -1;
+ var i = 0, length = array.length;
+ if (isSorted) {
+ if (typeof isSorted == 'number') {
+ i = (isSorted < 0 ? Math.max(0, length + isSorted) : isSorted);
+ } else {
+ i = _.sortedIndex(array, item);
+ return array[i] === item ? i : -1;
+ }
+ }
+ if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
+ for (; i < length; i++) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
+ _.lastIndexOf = function(array, item, from) {
+ if (array == null) return -1;
+ var hasIndex = from != null;
+ if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
+ return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
+ }
+ var i = (hasIndex ? from : array.length);
+ while (i--) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Generate an integer Array containing an arithmetic progression. A port of
+ // the native Python `range()` function. See
+ // [the Python documentation](http://docs.python.org/library/functions.html#range).
+ _.range = function(start, stop, step) {
+ if (arguments.length <= 1) {
+ stop = start || 0;
+ start = 0;
+ }
+ step = arguments[2] || 1;
+
+ var length = Math.max(Math.ceil((stop - start) / step), 0);
+ var idx = 0;
+ var range = new Array(length);
+
+ while(idx < length) {
+ range[idx++] = start;
+ start += step;
+ }
+
+ return range;
+ };
+
+ // Function (ahem) Functions
+ // ------------------
+
+ // Reusable constructor function for prototype setting.
+ var ctor = function(){};
+
+ // Create a function bound to a given object (assigning `this`, and arguments,
+ // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
+ // available.
+ _.bind = function(func, context) {
+ var args, bound;
+ if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+ if (!_.isFunction(func)) throw new TypeError;
+ args = slice.call(arguments, 2);
+ return bound = function() {
+ if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
+ ctor.prototype = func.prototype;
+ var self = new ctor;
+ ctor.prototype = null;
+ var result = func.apply(self, args.concat(slice.call(arguments)));
+ if (Object(result) === result) return result;
+ return self;
+ };
+ };
+
+ // Partially apply a function by creating a version that has had some of its
+ // arguments pre-filled, without changing its dynamic `this` context.
+ _.partial = function(func) {
+ var args = slice.call(arguments, 1);
+ return function() {
+ return func.apply(this, args.concat(slice.call(arguments)));
+ };
+ };
+
+ // Bind all of an object's methods to that object. Useful for ensuring that
+ // all callbacks defined on an object belong to it.
+ _.bindAll = function(obj) {
+ var funcs = slice.call(arguments, 1);
+ if (funcs.length === 0) throw new Error("bindAll must be passed function names");
+ each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
+ return obj;
+ };
+
+ // Memoize an expensive function by storing its results.
+ _.memoize = function(func, hasher) {
+ var memo = {};
+ hasher || (hasher = _.identity);
+ return function() {
+ var key = hasher.apply(this, arguments);
+ return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
+ };
+ };
+
+ // Delays a function for the given number of milliseconds, and then calls
+ // it with the arguments supplied.
+ _.delay = function(func, wait) {
+ var args = slice.call(arguments, 2);
+ return setTimeout(function(){ return func.apply(null, args); }, wait);
+ };
+
+ // Defers a function, scheduling it to run after the current call stack has
+ // cleared.
+ _.defer = function(func) {
+ return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
+ };
+
+ // Returns a function, that, when invoked, will only be triggered at most once
+ // during a given window of time. Normally, the throttled function will run
+ // as much as it can, without ever going more than once per `wait` duration;
+ // but if you'd like to disable the execution on the leading edge, pass
+ // `{leading: false}`. To disable execution on the trailing edge, ditto.
+ _.throttle = function(func, wait, options) {
+ var context, args, result;
+ var timeout = null;
+ var previous = 0;
+ options || (options = {});
+ var later = function() {
+ previous = options.leading === false ? 0 : new Date;
+ timeout = null;
+ result = func.apply(context, args);
+ };
+ return function() {
+ var now = new Date;
+ if (!previous && options.leading === false) previous = now;
+ var remaining = wait - (now - previous);
+ context = this;
+ args = arguments;
+ if (remaining <= 0) {
+ clearTimeout(timeout);
+ timeout = null;
+ previous = now;
+ result = func.apply(context, args);
+ } else if (!timeout && options.trailing !== false) {
+ timeout = setTimeout(later, remaining);
+ }
+ return result;
+ };
+ };
+
+ // Returns a function, that, as long as it continues to be invoked, will not
+ // be triggered. The function will be called after it stops being called for
+ // N milliseconds. If `immediate` is passed, trigger the function on the
+ // leading edge, instead of the trailing.
+ _.debounce = function(func, wait, immediate) {
+ var timeout, args, context, timestamp, result;
+ return function() {
+ context = this;
+ args = arguments;
+ timestamp = new Date();
+ var later = function() {
+ var last = (new Date()) - timestamp;
+ if (last < wait) {
+ timeout = setTimeout(later, wait - last);
+ } else {
+ timeout = null;
+ if (!immediate) result = func.apply(context, args);
+ }
+ };
+ var callNow = immediate && !timeout;
+ if (!timeout) {
+ timeout = setTimeout(later, wait);
+ }
+ if (callNow) result = func.apply(context, args);
+ return result;
+ };
+ };
+
+ // Returns a function that will be executed at most one time, no matter how
+ // often you call it. Useful for lazy initialization.
+ _.once = function(func) {
+ var ran = false, memo;
+ return function() {
+ if (ran) return memo;
+ ran = true;
+ memo = func.apply(this, arguments);
+ func = null;
+ return memo;
+ };
+ };
+
+ // Returns the first function passed as an argument to the second,
+ // allowing you to adjust arguments, run code before and after, and
+ // conditionally execute the original function.
+ _.wrap = function(func, wrapper) {
+ return function() {
+ var args = [func];
+ push.apply(args, arguments);
+ return wrapper.apply(this, args);
+ };
+ };
+
+ // Returns a function that is the composition of a list of functions, each
+ // consuming the return value of the function that follows.
+ _.compose = function() {
+ var funcs = arguments;
+ return function() {
+ var args = arguments;
+ for (var i = funcs.length - 1; i >= 0; i--) {
+ args = [funcs[i].apply(this, args)];
+ }
+ return args[0];
+ };
+ };
+
+ // Returns a function that will only be executed after being called N times.
+ _.after = function(times, func) {
+ return function() {
+ if (--times < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ };
+
+ // Object Functions
+ // ----------------
+
+ // Retrieve the names of an object's properties.
+ // Delegates to **ECMAScript 5**'s native `Object.keys`
+ _.keys = nativeKeys || function(obj) {
+ if (obj !== Object(obj)) throw new TypeError('Invalid object');
+ var keys = [];
+ for (var key in obj) if (_.has(obj, key)) keys.push(key);
+ return keys;
+ };
+
+ // Retrieve the values of an object's properties.
+ _.values = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var values = new Array(length);
+ for (var i = 0; i < length; i++) {
+ values[i] = obj[keys[i]];
+ }
+ return values;
+ };
+
+ // Convert an object into a list of `[key, value]` pairs.
+ _.pairs = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var pairs = new Array(length);
+ for (var i = 0; i < length; i++) {
+ pairs[i] = [keys[i], obj[keys[i]]];
+ }
+ return pairs;
+ };
+
+ // Invert the keys and values of an object. The values must be serializable.
+ _.invert = function(obj) {
+ var result = {};
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ result[obj[keys[i]]] = keys[i];
+ }
+ return result;
+ };
+
+ // Return a sorted list of the function names available on the object.
+ // Aliased as `methods`
+ _.functions = _.methods = function(obj) {
+ var names = [];
+ for (var key in obj) {
+ if (_.isFunction(obj[key])) names.push(key);
+ }
+ return names.sort();
+ };
+
+ // Extend a given object with all the properties in passed-in object(s).
+ _.extend = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ if (source) {
+ for (var prop in source) {
+ obj[prop] = source[prop];
+ }
+ }
+ });
+ return obj;
+ };
+
+ // Return a copy of the object only containing the whitelisted properties.
+ _.pick = function(obj) {
+ var copy = {};
+ var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+ each(keys, function(key) {
+ if (key in obj) copy[key] = obj[key];
+ });
+ return copy;
+ };
+
+ // Return a copy of the object without the blacklisted properties.
+ _.omit = function(obj) {
+ var copy = {};
+ var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+ for (var key in obj) {
+ if (!_.contains(keys, key)) copy[key] = obj[key];
+ }
+ return copy;
+ };
+
+ // Fill in a given object with default properties.
+ _.defaults = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ if (source) {
+ for (var prop in source) {
+ if (obj[prop] === void 0) obj[prop] = source[prop];
+ }
+ }
+ });
+ return obj;
+ };
+
+ // Create a (shallow-cloned) duplicate of an object.
+ _.clone = function(obj) {
+ if (!_.isObject(obj)) return obj;
+ return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+ };
+
+ // Invokes interceptor with the obj, and then returns obj.
+ // The primary purpose of this method is to "tap into" a method chain, in
+ // order to perform operations on intermediate results within the chain.
+ _.tap = function(obj, interceptor) {
+ interceptor(obj);
+ return obj;
+ };
+
+ // Internal recursive comparison function for `isEqual`.
+ var eq = function(a, b, aStack, bStack) {
+ // Identical objects are equal. `0 === -0`, but they aren't identical.
+ // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
+ if (a === b) return a !== 0 || 1 / a == 1 / b;
+ // A strict comparison is necessary because `null == undefined`.
+ if (a == null || b == null) return a === b;
+ // Unwrap any wrapped objects.
+ if (a instanceof _) a = a._wrapped;
+ if (b instanceof _) b = b._wrapped;
+ // Compare `[[Class]]` names.
+ var className = toString.call(a);
+ if (className != toString.call(b)) return false;
+ switch (className) {
+ // Strings, numbers, dates, and booleans are compared by value.
+ case '[object String]':
+ // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+ // equivalent to `new String("5")`.
+ return a == String(b);
+ case '[object Number]':
+ // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
+ // other numeric values.
+ return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
+ case '[object Date]':
+ case '[object Boolean]':
+ // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+ // millisecond representations. Note that invalid dates with millisecond representations
+ // of `NaN` are not equivalent.
+ return +a == +b;
+ // RegExps are compared by their source patterns and flags.
+ case '[object RegExp]':
+ return a.source == b.source &&
+ a.global == b.global &&
+ a.multiline == b.multiline &&
+ a.ignoreCase == b.ignoreCase;
+ }
+ if (typeof a != 'object' || typeof b != 'object') return false;
+ // Assume equality for cyclic structures. The algorithm for detecting cyclic
+ // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+ var length = aStack.length;
+ while (length--) {
+ // Linear search. Performance is inversely proportional to the number of
+ // unique nested structures.
+ if (aStack[length] == a) return bStack[length] == b;
+ }
+ // Objects with different constructors are not equivalent, but `Object`s
+ // from different frames are.
+ var aCtor = a.constructor, bCtor = b.constructor;
+ if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
+ _.isFunction(bCtor) && (bCtor instanceof bCtor))) {
+ return false;
+ }
+ // Add the first object to the stack of traversed objects.
+ aStack.push(a);
+ bStack.push(b);
+ var size = 0, result = true;
+ // Recursively compare objects and arrays.
+ if (className == '[object Array]') {
+ // Compare array lengths to determine if a deep comparison is necessary.
+ size = a.length;
+ result = size == b.length;
+ if (result) {
+ // Deep compare the contents, ignoring non-numeric properties.
+ while (size--) {
+ if (!(result = eq(a[size], b[size], aStack, bStack))) break;
+ }
+ }
+ } else {
+ // Deep compare objects.
+ for (var key in a) {
+ if (_.has(a, key)) {
+ // Count the expected number of properties.
+ size++;
+ // Deep compare each member.
+ if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
+ }
+ }
+ // Ensure that both objects contain the same number of properties.
+ if (result) {
+ for (key in b) {
+ if (_.has(b, key) && !(size--)) break;
+ }
+ result = !size;
+ }
+ }
+ // Remove the first object from the stack of traversed objects.
+ aStack.pop();
+ bStack.pop();
+ return result;
+ };
+
+ // Perform a deep comparison to check if two objects are equal.
+ _.isEqual = function(a, b) {
+ return eq(a, b, [], []);
+ };
+
+ // Is a given array, string, or object empty?
+ // An "empty" object has no enumerable own-properties.
+ _.isEmpty = function(obj) {
+ if (obj == null) return true;
+ if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
+ for (var key in obj) if (_.has(obj, key)) return false;
+ return true;
+ };
+
+ // Is a given value a DOM element?
+ _.isElement = function(obj) {
+ return !!(obj && obj.nodeType === 1);
+ };
+
+ // Is a given value an array?
+ // Delegates to ECMA5's native Array.isArray
+ _.isArray = nativeIsArray || function(obj) {
+ return toString.call(obj) == '[object Array]';
+ };
+
+ // Is a given variable an object?
+ _.isObject = function(obj) {
+ return obj === Object(obj);
+ };
+
+ // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
+ each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
+ _['is' + name] = function(obj) {
+ return toString.call(obj) == '[object ' + name + ']';
+ };
+ });
+
+ // Define a fallback version of the method in browsers (ahem, IE), where
+ // there isn't any inspectable "Arguments" type.
+ if (!_.isArguments(arguments)) {
+ _.isArguments = function(obj) {
+ return !!(obj && _.has(obj, 'callee'));
+ };
+ }
+
+ // Optimize `isFunction` if appropriate.
+ if (typeof (/./) !== 'function') {
+ _.isFunction = function(obj) {
+ return typeof obj === 'function';
+ };
+ }
+
+ // Is a given object a finite number?
+ _.isFinite = function(obj) {
+ return isFinite(obj) && !isNaN(parseFloat(obj));
+ };
+
+ // Is the given value `NaN`? (NaN is the only number which does not equal itself).
+ _.isNaN = function(obj) {
+ return _.isNumber(obj) && obj != +obj;
+ };
+
+ // Is a given value a boolean?
+ _.isBoolean = function(obj) {
+ return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
+ };
+
+ // Is a given value equal to null?
+ _.isNull = function(obj) {
+ return obj === null;
+ };
+
+ // Is a given variable undefined?
+ _.isUndefined = function(obj) {
+ return obj === void 0;
+ };
+
+ // Shortcut function for checking if an object has a given property directly
+ // on itself (in other words, not on a prototype).
+ _.has = function(obj, key) {
+ return hasOwnProperty.call(obj, key);
+ };
+
+ // Utility Functions
+ // -----------------
+
+ // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+ // previous owner. Returns a reference to the Underscore object.
+ _.noConflict = function() {
+ root._ = previousUnderscore;
+ return this;
+ };
+
+ // Keep the identity function around for default iterators.
+ _.identity = function(value) {
+ return value;
+ };
+
+ // Run a function **n** times.
+ _.times = function(n, iterator, context) {
+ var accum = Array(Math.max(0, n));
+ for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
+ return accum;
+ };
+
+ // Return a random integer between min and max (inclusive).
+ _.random = function(min, max) {
+ if (max == null) {
+ max = min;
+ min = 0;
+ }
+ return min + Math.floor(Math.random() * (max - min + 1));
+ };
+
+ // List of HTML entities for escaping.
+ var entityMap = {
+ escape: {
+ '&': '&amp;',
+ '<': '&lt;',
+ '>': '&gt;',
+ '"': '&quot;',
+ "'": '&#x27;'
+ }
+ };
+ entityMap.unescape = _.invert(entityMap.escape);
+
+ // Regexes containing the keys and values listed immediately above.
+ var entityRegexes = {
+ escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
+ unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
+ };
+
+ // Functions for escaping and unescaping strings to/from HTML interpolation.
+ _.each(['escape', 'unescape'], function(method) {
+ _[method] = function(string) {
+ if (string == null) return '';
+ return ('' + string).replace(entityRegexes[method], function(match) {
+ return entityMap[method][match];
+ });
+ };
+ });
+
+ // If the value of the named `property` is a function then invoke it with the
+ // `object` as context; otherwise, return it.
+ _.result = function(object, property) {
+ if (object == null) return void 0;
+ var value = object[property];
+ return _.isFunction(value) ? value.call(object) : value;
+ };
+
+ // Add your own custom functions to the Underscore object.
+ _.mixin = function(obj) {
+ each(_.functions(obj), function(name) {
+ var func = _[name] = obj[name];
+ _.prototype[name] = function() {
+ var args = [this._wrapped];
+ push.apply(args, arguments);
+ return result.call(this, func.apply(_, args));
+ };
+ });
+ };
+
+ // Generate a unique integer id (unique within the entire client session).
+ // Useful for temporary DOM ids.
+ var idCounter = 0;
+ _.uniqueId = function(prefix) {
+ var id = ++idCounter + '';
+ return prefix ? prefix + id : id;
+ };
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate : /<%([\s\S]+?)%>/g,
+ interpolate : /<%=([\s\S]+?)%>/g,
+ escape : /<%-([\s\S]+?)%>/g
+ };
+
+ // When customizing `templateSettings`, if you don't want to define an
+ // interpolation, evaluation or escaping regex, we need one that is
+ // guaranteed not to match.
+ var noMatch = /(.)^/;
+
+ // Certain characters need to be escaped so that they can be put into a
+ // string literal.
+ var escapes = {
+ "'": "'",
+ '\\': '\\',
+ '\r': 'r',
+ '\n': 'n',
+ '\t': 't',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ _.template = function(text, data, settings) {
+ var render;
+ settings = _.defaults({}, settings, _.templateSettings);
+
+ // Combine delimiters into one regular expression via alternation.
+ var matcher = new RegExp([
+ (settings.escape || noMatch).source,
+ (settings.interpolate || noMatch).source,
+ (settings.evaluate || noMatch).source
+ ].join('|') + '|$', 'g');
+
+ // Compile the template source, escaping string literals appropriately.
+ var index = 0;
+ var source = "__p+='";
+ text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+ source += text.slice(index, offset)
+ .replace(escaper, function(match) { return '\\' + escapes[match]; });
+
+ if (escape) {
+ source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+ }
+ if (interpolate) {
+ source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+ }
+ if (evaluate) {
+ source += "';\n" + evaluate + "\n__p+='";
+ }
+ index = offset + match.length;
+ return match;
+ });
+ source += "';\n";
+
+ // If a variable is not specified, place data values in local scope.
+ if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+ source = "var __t,__p='',__j=Array.prototype.join," +
+ "print=function(){__p+=__j.call(arguments,'');};\n" +
+ source + "return __p;\n";
+
+ try {
+ render = new Function(settings.variable || 'obj', '_', source);
+ } catch (e) {
+ e.source = source;
+ throw e;
+ }
+
+ if (data) return render(data, _);
+ var template = function(data) {
+ return render.call(this, data, _);
+ };
+
+ // Provide the compiled function source as a convenience for precompilation.
+ template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
+
+ return template;
+ };
+
+ // Add a "chain" function, which will delegate to the wrapper.
+ _.chain = function(obj) {
+ return _(obj).chain();
+ };
+
+ // OOP
+ // ---------------
+ // If Underscore is called as a function, it returns a wrapped object that
+ // can be used OO-style. This wrapper holds altered versions of all the
+ // underscore functions. Wrapped objects may be chained.
+
+ // Helper function to continue chaining intermediate results.
+ var result = function(obj) {
+ return this._chain ? _(obj).chain() : obj;
+ };
+
+ // Add all of the Underscore functions to the wrapper object.
+ _.mixin(_);
+
+ // Add all mutator Array functions to the wrapper.
+ each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ var obj = this._wrapped;
+ method.apply(obj, arguments);
+ if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
+ return result.call(this, obj);
+ };
+ });
+
+ // Add all accessor Array functions to the wrapper.
+ each(['concat', 'join', 'slice'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ return result.call(this, method.apply(this._wrapped, arguments));
+ };
+ });
+
+ _.extend(_.prototype, {
+
+ // Start chaining a wrapped Underscore object.
+ chain: function() {
+ this._chain = true;
+ return this;
+ },
+
+ // Extracts the result from a wrapped and chained object.
+ value: function() {
+ return this._wrapped;
+ }
+
+ });
+
+}).call(this);