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author | 2017-09-01 11:57:47 +0800 | |
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committer | 2017-09-01 11:57:58 +0800 | |
commit | 57dbba269d19bc59fad89160200bb2dbcccb9003 (patch) | |
tree | d466041ceffa2161124ca79a48b3e077777c74b8 /usecaseui-common/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-tickers.js | |
parent | 4ff32341a0af1972b44a7410e76e9b231131e7ab (diff) |
Upload Monitor function code
Change-Id: I33ad76221b4cb771a298ff240245fc24be664efb
Issue-Id: USECASEUI-6
Signed-off-by: shentao <shentao@chinamobile.com>
Diffstat (limited to 'usecaseui-common/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-tickers.js')
-rw-r--r-- | usecaseui-common/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-tickers.js | 487 |
1 files changed, 487 insertions, 0 deletions
diff --git a/usecaseui-common/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-tickers.js b/usecaseui-common/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-tickers.js new file mode 100644 index 00000000..f4778b12 --- /dev/null +++ b/usecaseui-common/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-tickers.js @@ -0,0 +1,487 @@ +/** + * @license + * Copyright 2011 Dan Vanderkam (danvdk@gmail.com) + * MIT-licensed (http://opensource.org/licenses/MIT) + */ + +/** + * @fileoverview Description of this file. + * @author danvk@google.com (Dan Vanderkam) + * + * A ticker is a function with the following interface: + * + * function(a, b, pixels, options_view, dygraph, forced_values); + * -> [ { v: tick1_v, label: tick1_label[, label_v: label_v1] }, + * { v: tick2_v, label: tick2_label[, label_v: label_v2] }, + * ... + * ] + * + * The returned value is called a "tick list". + * + * Arguments + * --------- + * + * [a, b] is the range of the axis for which ticks are being generated. For a + * numeric axis, these will simply be numbers. For a date axis, these will be + * millis since epoch (convertable to Date objects using "new Date(a)" and "new + * Date(b)"). + * + * opts provides access to chart- and axis-specific options. It can be used to + * access number/date formatting code/options, check for a log scale, etc. + * + * pixels is the length of the axis in pixels. opts('pixelsPerLabel') is the + * minimum amount of space to be allotted to each label. For instance, if + * pixels=400 and opts('pixelsPerLabel')=40 then the ticker should return + * between zero and ten (400/40) ticks. + * + * dygraph is the Dygraph object for which an axis is being constructed. + * + * forced_values is used for secondary y-axes. The tick positions are typically + * set by the primary y-axis, so the secondary y-axis has no choice in where to + * put these. It simply has to generate labels for these data values. + * + * Tick lists + * ---------- + * Typically a tick will have both a grid/tick line and a label at one end of + * that line (at the bottom for an x-axis, at left or right for the y-axis). + * + * A tick may be missing one of these two components: + * - If "label_v" is specified instead of "v", then there will be no tick or + * gridline, just a label. + * - Similarly, if "label" is not specified, then there will be a gridline + * without a label. + * + * This flexibility is useful in a few situations: + * - For log scales, some of the tick lines may be too close to all have labels. + * - For date scales where years are being displayed, it is desirable to display + * tick marks at the beginnings of years but labels (e.g. "2006") in the + * middle of the years. + */ + +/*jshint globalstrict:true, sub:true */ +/*global Dygraph:false */ +"use strict"; + +/** @typedef {Array.<{v:number, label:string, label_v:(string|undefined)}>} */ +Dygraph.TickList = undefined; // the ' = undefined' keeps jshint happy. + +/** @typedef {function( + * number, + * number, + * number, + * function(string):*, + * Dygraph=, + * Array.<number>= + * ): Dygraph.TickList} + */ +Dygraph.Ticker = undefined; // the ' = undefined' keeps jshint happy. + +/** @type {Dygraph.Ticker} */ +Dygraph.numericLinearTicks = function(a, b, pixels, opts, dygraph, vals) { + var nonLogscaleOpts = function(opt) { + if (opt === 'logscale') return false; + return opts(opt); + }; + return Dygraph.numericTicks(a, b, pixels, nonLogscaleOpts, dygraph, vals); +}; + +/** @type {Dygraph.Ticker} */ +Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) { + var pixels_per_tick = /** @type{number} */(opts('pixelsPerLabel')); + var ticks = []; + var i, j, tickV, nTicks; + if (vals) { + for (i = 0; i < vals.length; i++) { + ticks.push({v: vals[i]}); + } + } else { + // TODO(danvk): factor this log-scale block out into a separate function. + if (opts("logscale")) { + nTicks = Math.floor(pixels / pixels_per_tick); + var minIdx = Dygraph.binarySearch(a, Dygraph.PREFERRED_LOG_TICK_VALUES, 1); + var maxIdx = Dygraph.binarySearch(b, Dygraph.PREFERRED_LOG_TICK_VALUES, -1); + if (minIdx == -1) { + minIdx = 0; + } + if (maxIdx == -1) { + maxIdx = Dygraph.PREFERRED_LOG_TICK_VALUES.length - 1; + } + // Count the number of tick values would appear, if we can get at least + // nTicks / 4 accept them. + var lastDisplayed = null; + if (maxIdx - minIdx >= nTicks / 4) { + for (var idx = maxIdx; idx >= minIdx; idx--) { + var tickValue = Dygraph.PREFERRED_LOG_TICK_VALUES[idx]; + var pixel_coord = Math.log(tickValue / a) / Math.log(b / a) * pixels; + var tick = { v: tickValue }; + if (lastDisplayed === null) { + lastDisplayed = { + tickValue : tickValue, + pixel_coord : pixel_coord + }; + } else { + if (Math.abs(pixel_coord - lastDisplayed.pixel_coord) >= pixels_per_tick) { + lastDisplayed = { + tickValue : tickValue, + pixel_coord : pixel_coord + }; + } else { + tick.label = ""; + } + } + ticks.push(tick); + } + // Since we went in backwards order. + ticks.reverse(); + } + } + + // ticks.length won't be 0 if the log scale function finds values to insert. + if (ticks.length === 0) { + // Basic idea: + // Try labels every 1, 2, 5, 10, 20, 50, 100, etc. + // Calculate the resulting tick spacing (i.e. this.height_ / nTicks). + // The first spacing greater than pixelsPerYLabel is what we use. + // TODO(danvk): version that works on a log scale. + var kmg2 = opts("labelsKMG2"); + var mults, base; + if (kmg2) { + mults = [1, 2, 4, 8, 16, 32, 64, 128, 256]; + base = 16; + } else { + mults = [1, 2, 5, 10, 20, 50, 100]; + base = 10; + } + + // Get the maximum number of permitted ticks based on the + // graph's pixel size and pixels_per_tick setting. + var max_ticks = Math.ceil(pixels / pixels_per_tick); + + // Now calculate the data unit equivalent of this tick spacing. + // Use abs() since graphs may have a reversed Y axis. + var units_per_tick = Math.abs(b - a) / max_ticks; + + // Based on this, get a starting scale which is the largest + // integer power of the chosen base (10 or 16) that still remains + // below the requested pixels_per_tick spacing. + var base_power = Math.floor(Math.log(units_per_tick) / Math.log(base)); + var base_scale = Math.pow(base, base_power); + + // Now try multiples of the starting scale until we find one + // that results in tick marks spaced sufficiently far apart. + // The "mults" array should cover the range 1 .. base^2 to + // adjust for rounding and edge effects. + var scale, low_val, high_val, spacing; + for (j = 0; j < mults.length; j++) { + scale = base_scale * mults[j]; + low_val = Math.floor(a / scale) * scale; + high_val = Math.ceil(b / scale) * scale; + nTicks = Math.abs(high_val - low_val) / scale; + spacing = pixels / nTicks; + if (spacing > pixels_per_tick) break; + } + + // Construct the set of ticks. + // Allow reverse y-axis if it's explicitly requested. + if (low_val > high_val) scale *= -1; + for (i = 0; i < nTicks; i++) { + tickV = low_val + i * scale; + ticks.push( {v: tickV} ); + } + } + } + + var formatter = /**@type{AxisLabelFormatter}*/(opts('axisLabelFormatter')); + + // Add labels to the ticks. + for (i = 0; i < ticks.length; i++) { + if (ticks[i].label !== undefined) continue; // Use current label. + // TODO(danvk): set granularity to something appropriate here. + ticks[i].label = formatter(ticks[i].v, 0, opts, dygraph); + } + + return ticks; +}; + + +/** @type {Dygraph.Ticker} */ +Dygraph.dateTicker = function(a, b, pixels, opts, dygraph, vals) { + var chosen = Dygraph.pickDateTickGranularity(a, b, pixels, opts); + + if (chosen >= 0) { + return Dygraph.getDateAxis(a, b, chosen, opts, dygraph); + } else { + // this can happen if self.width_ is zero. + return []; + } +}; + +// Time granularity enumeration +// TODO(danvk): make this an @enum +Dygraph.SECONDLY = 0; +Dygraph.TWO_SECONDLY = 1; +Dygraph.FIVE_SECONDLY = 2; +Dygraph.TEN_SECONDLY = 3; +Dygraph.THIRTY_SECONDLY = 4; +Dygraph.MINUTELY = 5; +Dygraph.TWO_MINUTELY = 6; +Dygraph.FIVE_MINUTELY = 7; +Dygraph.TEN_MINUTELY = 8; +Dygraph.THIRTY_MINUTELY = 9; +Dygraph.HOURLY = 10; +Dygraph.TWO_HOURLY = 11; +Dygraph.SIX_HOURLY = 12; +Dygraph.DAILY = 13; +Dygraph.WEEKLY = 14; +Dygraph.MONTHLY = 15; +Dygraph.QUARTERLY = 16; +Dygraph.BIANNUAL = 17; +Dygraph.ANNUAL = 18; +Dygraph.DECADAL = 19; +Dygraph.CENTENNIAL = 20; +Dygraph.NUM_GRANULARITIES = 21; + +/** @type {Array.<number>} */ +Dygraph.SHORT_SPACINGS = []; +Dygraph.SHORT_SPACINGS[Dygraph.SECONDLY] = 1000 * 1; +Dygraph.SHORT_SPACINGS[Dygraph.TWO_SECONDLY] = 1000 * 2; +Dygraph.SHORT_SPACINGS[Dygraph.FIVE_SECONDLY] = 1000 * 5; +Dygraph.SHORT_SPACINGS[Dygraph.TEN_SECONDLY] = 1000 * 10; +Dygraph.SHORT_SPACINGS[Dygraph.THIRTY_SECONDLY] = 1000 * 30; +Dygraph.SHORT_SPACINGS[Dygraph.MINUTELY] = 1000 * 60; +Dygraph.SHORT_SPACINGS[Dygraph.TWO_MINUTELY] = 1000 * 60 * 2; +Dygraph.SHORT_SPACINGS[Dygraph.FIVE_MINUTELY] = 1000 * 60 * 5; +Dygraph.SHORT_SPACINGS[Dygraph.TEN_MINUTELY] = 1000 * 60 * 10; +Dygraph.SHORT_SPACINGS[Dygraph.THIRTY_MINUTELY] = 1000 * 60 * 30; +Dygraph.SHORT_SPACINGS[Dygraph.HOURLY] = 1000 * 3600; +Dygraph.SHORT_SPACINGS[Dygraph.TWO_HOURLY] = 1000 * 3600 * 2; +Dygraph.SHORT_SPACINGS[Dygraph.SIX_HOURLY] = 1000 * 3600 * 6; +Dygraph.SHORT_SPACINGS[Dygraph.DAILY] = 1000 * 86400; +Dygraph.SHORT_SPACINGS[Dygraph.WEEKLY] = 1000 * 604800; + +/** + * A collection of objects specifying where it is acceptable to place tick + * marks for granularities larger than WEEKLY. + * 'months' is an array of month indexes on which to place tick marks. + * 'year_mod' ticks are placed when year % year_mod = 0. + * @type {Array.<Object>} + */ +Dygraph.LONG_TICK_PLACEMENTS = []; +Dygraph.LONG_TICK_PLACEMENTS[Dygraph.MONTHLY] = { + months : [0,1,2,3,4,5,6,7,8,9,10,11], + year_mod : 1 +}; +Dygraph.LONG_TICK_PLACEMENTS[Dygraph.QUARTERLY] = { + months: [0,3,6,9], + year_mod: 1 +}; +Dygraph.LONG_TICK_PLACEMENTS[Dygraph.BIANNUAL] = { + months: [0,6], + year_mod: 1 +}; +Dygraph.LONG_TICK_PLACEMENTS[Dygraph.ANNUAL] = { + months: [0], + year_mod: 1 +}; +Dygraph.LONG_TICK_PLACEMENTS[Dygraph.DECADAL] = { + months: [0], + year_mod: 10 +}; +Dygraph.LONG_TICK_PLACEMENTS[Dygraph.CENTENNIAL] = { + months: [0], + year_mod: 100 +}; + +/** + * This is a list of human-friendly values at which to show tick marks on a log + * scale. It is k * 10^n, where k=1..9 and n=-39..+39, so: + * ..., 1, 2, 3, 4, 5, ..., 9, 10, 20, 30, ..., 90, 100, 200, 300, ... + * NOTE: this assumes that Dygraph.LOG_SCALE = 10. + * @type {Array.<number>} + */ +Dygraph.PREFERRED_LOG_TICK_VALUES = function() { + var vals = []; + for (var power = -39; power <= 39; power++) { + var range = Math.pow(10, power); + for (var mult = 1; mult <= 9; mult++) { + var val = range * mult; + vals.push(val); + } + } + return vals; +}(); + +/** + * Determine the correct granularity of ticks on a date axis. + * + * @param {number} a Left edge of the chart (ms) + * @param {number} b Right edge of the chart (ms) + * @param {number} pixels Size of the chart in the relevant dimension (width). + * @param {function(string):*} opts Function mapping from option name -> + * value. + * @return {number} The appropriate axis granularity for this chart. See the + * enumeration of possible values in dygraph-tickers.js. + */ +Dygraph.pickDateTickGranularity = function(a, b, pixels, opts) { + var pixels_per_tick = /** @type{number} */(opts('pixelsPerLabel')); + for (var i = 0; i < Dygraph.NUM_GRANULARITIES; i++) { + var num_ticks = Dygraph.numDateTicks(a, b, i); + if (pixels / num_ticks >= pixels_per_tick) { + return i; + } + } + return -1; +}; + +/** + * @param {number} start_time + * @param {number} end_time + * @param {number} granularity (one of the granularities enumerated above) + * @return {number} Number of ticks that would result. + */ +Dygraph.numDateTicks = function(start_time, end_time, granularity) { + if (granularity < Dygraph.MONTHLY) { + // Generate one tick mark for every fixed interval of time. + var spacing = Dygraph.SHORT_SPACINGS[granularity]; + return Math.floor(0.5 + 1.0 * (end_time - start_time) / spacing); + } else { + var tickPlacement = Dygraph.LONG_TICK_PLACEMENTS[granularity]; + + var msInYear = 365.2524 * 24 * 3600 * 1000; + var num_years = 1.0 * (end_time - start_time) / msInYear; + return Math.floor(0.5 + 1.0 * num_years * tickPlacement.months.length / tickPlacement.year_mod); + } +}; + +/** + * @param {number} start_time + * @param {number} end_time + * @param {number} granularity (one of the granularities enumerated above) + * @param {function(string):*} opts Function mapping from option name -> value. + * @param {Dygraph=} dg + * @return {!Dygraph.TickList} + */ +Dygraph.getDateAxis = function(start_time, end_time, granularity, opts, dg) { + var formatter = /** @type{AxisLabelFormatter} */( + opts("axisLabelFormatter")); + var ticks = []; + var t; + + if (granularity < Dygraph.MONTHLY) { + // Generate one tick mark for every fixed interval of time. + var spacing = Dygraph.SHORT_SPACINGS[granularity]; + + // Find a time less than start_time which occurs on a "nice" time boundary + // for this granularity. + var g = spacing / 1000; + var d = new Date(start_time); + Dygraph.setDateSameTZ(d, {ms: 0}); + + var x; + if (g <= 60) { // seconds + x = d.getSeconds(); + Dygraph.setDateSameTZ(d, {s: x - x % g}); + } else { + Dygraph.setDateSameTZ(d, {s: 0}); + g /= 60; + if (g <= 60) { // minutes + x = d.getMinutes(); + Dygraph.setDateSameTZ(d, {m: x - x % g}); + } else { + Dygraph.setDateSameTZ(d, {m: 0}); + g /= 60; + + if (g <= 24) { // days + x = d.getHours(); + d.setHours(x - x % g); + } else { + d.setHours(0); + g /= 24; + + if (g == 7) { // one week + d.setDate(d.getDate() - d.getDay()); + } + } + } + } + start_time = d.getTime(); + + // For spacings coarser than two-hourly, we want to ignore daylight + // savings transitions to get consistent ticks. For finer-grained ticks, + // it's essential to show the DST transition in all its messiness. + var start_offset_min = new Date(start_time).getTimezoneOffset(); + var check_dst = (spacing >= Dygraph.SHORT_SPACINGS[Dygraph.TWO_HOURLY]); + + for (t = start_time; t <= end_time; t += spacing) { + d = new Date(t); + + // This ensures that we stay on the same hourly "rhythm" across + // daylight savings transitions. Without this, the ticks could get off + // by an hour. See tests/daylight-savings.html or issue 147. + if (check_dst && d.getTimezoneOffset() != start_offset_min) { + var delta_min = d.getTimezoneOffset() - start_offset_min; + t += delta_min * 60 * 1000; + d = new Date(t); + start_offset_min = d.getTimezoneOffset(); + + // Check whether we've backed into the previous timezone again. + // This can happen during a "spring forward" transition. In this case, + // it's best to skip this tick altogether (we may be shooting for a + // non-existent time like the 2AM that's skipped) and go to the next + // one. + if (new Date(t + spacing).getTimezoneOffset() != start_offset_min) { + t += spacing; + d = new Date(t); + start_offset_min = d.getTimezoneOffset(); + } + } + + ticks.push({ v:t, + label: formatter(d, granularity, opts, dg) + }); + } + } else { + // Display a tick mark on the first of a set of months of each year. + // Years get a tick mark iff y % year_mod == 0. This is useful for + // displaying a tick mark once every 10 years, say, on long time scales. + var months; + var year_mod = 1; // e.g. to only print one point every 10 years. + + if (granularity < Dygraph.NUM_GRANULARITIES) { + months = Dygraph.LONG_TICK_PLACEMENTS[granularity].months; + year_mod = Dygraph.LONG_TICK_PLACEMENTS[granularity].year_mod; + } else { + Dygraph.warn("Span of dates is too long"); + } + + var start_year = new Date(start_time).getFullYear(); + var end_year = new Date(end_time).getFullYear(); + var zeropad = Dygraph.zeropad; + for (var i = start_year; i <= end_year; i++) { + if (i % year_mod !== 0) continue; + for (var j = 0; j < months.length; j++) { + var date_str = i + "/" + zeropad(1 + months[j]) + "/01"; + t = Dygraph.dateStrToMillis(date_str); + if (t < start_time || t > end_time) continue; + ticks.push({ v:t, + label: formatter(new Date(t), granularity, opts, dg) + }); + } + } + } + + return ticks; +}; + +// These are set here so that this file can be included after dygraph.js +// or independently. +if (Dygraph && + Dygraph.DEFAULT_ATTRS && + Dygraph.DEFAULT_ATTRS['axes'] && + Dygraph.DEFAULT_ATTRS['axes']['x'] && + Dygraph.DEFAULT_ATTRS['axes']['y'] && + Dygraph.DEFAULT_ATTRS['axes']['y2']) { + Dygraph.DEFAULT_ATTRS['axes']['x']['ticker'] = Dygraph.dateTicker; + Dygraph.DEFAULT_ATTRS['axes']['y']['ticker'] = Dygraph.numericTicks; + Dygraph.DEFAULT_ATTRS['axes']['y2']['ticker'] = Dygraph.numericTicks; +} |