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Diffstat (limited to 'ecomp-sdk-app/src/main/webapp/app/fusion/external/d3/js/d3.layout.cloud.js')
| -rw-r--r-- | ecomp-sdk-app/src/main/webapp/app/fusion/external/d3/js/d3.layout.cloud.js | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/ecomp-sdk-app/src/main/webapp/app/fusion/external/d3/js/d3.layout.cloud.js b/ecomp-sdk-app/src/main/webapp/app/fusion/external/d3/js/d3.layout.cloud.js new file mode 100644 index 000000000..44c4f7dee --- /dev/null +++ b/ecomp-sdk-app/src/main/webapp/app/fusion/external/d3/js/d3.layout.cloud.js @@ -0,0 +1,433 @@ +// Word cloud layout by Jason Davies, http://www.jasondavies.com/word-cloud/ +// Algorithm due to Jonathan Feinberg, http://static.mrfeinberg.com/bv_ch03.pdf +(function() { + function cloud() { + var size = [256, 256], + text = cloudText, + font = cloudFont, + fontSize = cloudFontSize, + fontStyle = cloudFontNormal, + fontWeight = cloudFontNormal, + rotate = cloudRotate, + padding = cloudPadding, + spiral = archimedeanSpiral, + words = [], + timeInterval = Infinity, + event = d3.dispatch("word", "end"), + timer = null, + cloud = {}; + + cloud.start = function() { + var board = zeroArray((size[0] >> 5) * size[1]), + bounds = null, + n = words.length, + i = -1, + tags = [], + data = words.map(function(d, i) { + d.text = text.call(this, d, i); + d.font = font.call(this, d, i); + d.style = fontStyle.call(this, d, i); + d.weight = fontWeight.call(this, d, i); + d.rotate = rotate.call(this, d, i); + d.size = ~~fontSize.call(this, d, i); + d.padding = padding.call(this, d, i); + return d; + }).sort(function(a, b) { return b.size - a.size; }); +// createMask(); +/* var bd = 3000; + while (bd < 4000) { + board[bd] = -1; + bd++ + } + */ + function createMask() + { + d3.select("body").append("canvas").attr("id", "maskCanvas") + maskCanvas = document.getElementById('maskCanvas'), + maskCanvas.width = 85; + maskCanvas.height = 85; + maskContext = maskCanvas.getContext('2d'); + maskImage = new Image(); + maskImage.src = 'mask.png'; + maskImage.onload = function(){ + maskContext.drawImage(maskImage,0,0,85,85 * maskImage.height / maskImage.width); + maskData = maskContext.getImageData(0,0,85,85).data; +/* + var hh = 0; + while (hh < maskData.length) { + if (hh%4 == 0) { + if (maskData[hh] == 0) { + board[~~(hh/4)] = -1; + } + } + hh++; + } + */ + + } + } + if (timer) clearInterval(timer); + timer = setInterval(step, 0); + step(); + + return cloud; + + function step() { + var start = +new Date, + d; + while (+new Date - start < timeInterval && ++i < n && timer) { + d = data[i]; + d.x = (size[0] * (Math.random() + .5)) >> 1; + d.y = (size[1] * (Math.random() + .5)) >> 1; + cloudSprite(d, data, i); + if (d.hasText && place(board, d, bounds)) { + tags.push(d); + event.word(d); + if (bounds) cloudBounds(bounds, d); + else bounds = [{x: d.x + d.x0, y: d.y + d.y0}, {x: d.x + d.x1, y: d.y + d.y1}]; + // Temporary hack + d.x -= size[0] >> 1; + d.y -= size[1] >> 1; + } + } + if (i >= n) { + cloud.stop(); + event.end(tags, bounds); + } + } + } + + cloud.stop = function() { + if (timer) { + clearInterval(timer); + timer = null; + } + return cloud; + }; + + cloud.timeInterval = function(x) { + if (!arguments.length) return timeInterval; + timeInterval = x == null ? Infinity : x; + return cloud; + }; + + function place(board, tag, bounds) { + var perimeter = [{x: 0, y: 0}, {x: size[0], y: size[1]}], + startX = tag.x, + startY = tag.y, + maxDelta = Math.sqrt(size[0] * size[0] + size[1] * size[1]), + s = spiral(size), + dt = Math.random() < .5 ? 1 : -1, + t = -dt, + dxdy, + dx, + dy; + + while (dxdy = s(t += dt)) { + dx = ~~dxdy[0]; + dy = ~~dxdy[1]; + + if (Math.min(dx, dy) > maxDelta) break; + + tag.x = startX + dx; + tag.y = startY + dy; + + if (tag.x + tag.x0 < 0 || tag.y + tag.y0 < 0 || + tag.x + tag.x1 > size[0] || tag.y + tag.y1 > size[1]) continue; + // TODO only check for collisions within current bounds. + if (!bounds || !cloudCollide(tag, board, size[0])) { + if (!bounds || collideRects(tag, bounds)) { + var sprite = tag.sprite, + w = tag.width >> 5, + sw = size[0] >> 5, + lx = tag.x - (w << 4), + sx = lx & 0x7f, + msx = 32 - sx, + h = tag.y1 - tag.y0, + x = (tag.y + tag.y0) * sw + (lx >> 5), + last; + for (var j = 0; j < h; j++) { + last = 0; + for (var i = 0; i <= w; i++) { + board[x + i] |= (last << msx) | (i < w ? (last = sprite[j * w + i]) >>> sx : 0); + } + x += sw; + } + delete tag.sprite; + return true; + } + } + } + return false; + } + + cloud.words = function(x) { + if (!arguments.length) return words; + words = x; + return cloud; + }; + + cloud.size = function(x) { + if (!arguments.length) return size; + size = [+x[0], +x[1]]; + return cloud; + }; + + cloud.font = function(x) { + if (!arguments.length) return font; + font = d3.functor(x); + return cloud; + }; + + cloud.fontStyle = function(x) { + if (!arguments.length) return fontStyle; + fontStyle = d3.functor(x); + return cloud; + }; + + cloud.fontWeight = function(x) { + if (!arguments.length) return fontWeight; + fontWeight = d3.functor(x); + return cloud; + }; + + cloud.rotate = function(x) { + if (!arguments.length) return rotate; + rotate = d3.functor(x); + return cloud; + }; + + cloud.text = function(x) { + if (!arguments.length) return text; + text = d3.functor(x); + return cloud; + }; + + cloud.spiral = function(x) { + if (!arguments.length) return spiral; + spiral = spirals[x + ""] || x; + return cloud; + }; + + cloud.fontSize = function(x) { + if (!arguments.length) return fontSize; + fontSize = d3.functor(x); + return cloud; + }; + + cloud.padding = function(x) { + if (!arguments.length) return padding; + padding = d3.functor(x); + return cloud; + }; + + return d3.rebind(cloud, event, "on"); + } + + function cloudText(d) { + return d.text; + } + + function cloudFont() { + return "serif"; + } + + function cloudFontNormal() { + return "normal"; + } + + function cloudFontSize(d) { + return Math.sqrt(d.value); + } + + function cloudRotate() { + return (~~(Math.random() * 6) - 3) * 30; + } + + function cloudPadding() { + return 1; + } + + // Fetches a monochrome sprite bitmap for the specified text. + // Load in batches for speed. + function cloudSprite(d, data, di) { + if (d.sprite) return; + c.clearRect(0, 0, (cw << 5) / ratio, ch / ratio); + var x = 0, + y = 0, + maxh = 0, + n = data.length; + --di; + while (++di < n) { + d = data[di]; + c.save(); + c.font = d.style + " " + d.weight + " " + ~~((d.size + 1) / ratio) + "px " + d.font; + var w = c.measureText(d.text + "m").width * ratio, + h = d.size << 1; + if (d.rotate) { + var sr = Math.sin(d.rotate * cloudRadians), + cr = Math.cos(d.rotate * cloudRadians), + wcr = w * cr, + wsr = w * sr, + hcr = h * cr, + hsr = h * sr; + w = (Math.max(Math.abs(wcr + hsr), Math.abs(wcr - hsr)) + 0x1f) >> 5 << 5; + h = ~~Math.max(Math.abs(wsr + hcr), Math.abs(wsr - hcr)); + } else { + w = (w + 0x1f) >> 5 << 5; + } + if (h > maxh) maxh = h; + if (x + w >= (cw << 5)) { + x = 0; + y += maxh; + maxh = 0; + } + if (y + h >= ch) break; + c.translate((x + (w >> 1)) / ratio, (y + (h >> 1)) / ratio); + if (d.rotate) c.rotate(d.rotate * cloudRadians); + c.fillText(d.text, 0, 0); + if (d.padding) c.lineWidth = 2 * d.padding, c.strokeText(d.text, 0, 0); + c.restore(); + d.width = w; + d.height = h; + d.xoff = x; + d.yoff = y; + d.x1 = w >> 1; + d.y1 = h >> 1; + d.x0 = -d.x1; + d.y0 = -d.y1; + d.hasText = true; + x += w; + } + var pixels = c.getImageData(0, 0, (cw << 5) / ratio, ch / ratio).data, + sprite = []; + while (--di >= 0) { + d = data[di]; + if (!d.hasText) continue; + var w = d.width, + w32 = w >> 5, + h = d.y1 - d.y0; + // Zero the buffer + for (var i = 0; i < h * w32; i++) sprite[i] = 0; + x = d.xoff; + if (x == null) return; + y = d.yoff; + var seen = 0, + seenRow = -1; + for (var j = 0; j < h; j++) { + for (var i = 0; i < w; i++) { + var k = w32 * j + (i >> 5), + m = pixels[((y + j) * (cw << 5) + (x + i)) << 2] ? 1 << (31 - (i % 32)) : 0; + sprite[k] |= m; + seen |= m; + } + if (seen) seenRow = j; + else { + d.y0++; + h--; + j--; + y++; + } + } + d.y1 = d.y0 + seenRow; + d.sprite = sprite.slice(0, (d.y1 - d.y0) * w32); + } + } + + // Use mask-based collision detection. + function cloudCollide(tag, board, sw) { + sw >>= 5; + var sprite = tag.sprite, + w = tag.width >> 5, + lx = tag.x - (w << 4), + sx = lx & 0x7f, + msx = 32 - sx, + h = tag.y1 - tag.y0, + x = (tag.y + tag.y0) * sw + (lx >> 5), + last; + for (var j = 0; j < h; j++) { + last = 0; + for (var i = 0; i <= w; i++) { + if (((last << msx) | (i < w ? (last = sprite[j * w + i]) >>> sx : 0)) + & board[x + i]) return true; + } + x += sw; + } + return false; + } + + function cloudBounds(bounds, d) { + var b0 = bounds[0], + b1 = bounds[1]; + if (d.x + d.x0 < b0.x) b0.x = d.x + d.x0; + if (d.y + d.y0 < b0.y) b0.y = d.y + d.y0; + if (d.x + d.x1 > b1.x) b1.x = d.x + d.x1; + if (d.y + d.y1 > b1.y) b1.y = d.y + d.y1; + } + + function collideRects(a, b) { + return a.x + a.x1 > b[0].x && a.x + a.x0 < b[1].x && a.y + a.y1 > b[0].y && a.y + a.y0 < b[1].y; + } + + function archimedeanSpiral(size) { + var e = size[0] / size[1]; + return function(t) { + return [e * (t *= .1) * Math.cos(t), t * Math.sin(t)]; + }; + } + + function rectangularSpiral(size) { + var dy = 4, + dx = dy * size[0] / size[1], + x = 0, + y = 0; + return function(t) { + var sign = t < 0 ? -1 : 1; + // See triangular numbers: T_n = n * (n + 1) / 2. + switch ((Math.sqrt(1 + 4 * sign * t) - sign) & 3) { + case 0: x += dx; break; + case 1: y += dy; break; + case 2: x -= dx; break; + default: y -= dy; break; + } + return [x, y]; + }; + } + + // TODO reuse arrays? + function zeroArray(n) { + var a = [], + i = -1; + while (++i < n) a[i] = 0; + return a; + } + + var cloudRadians = Math.PI / 180, + cw = 1 << 11 >> 5, + ch = 1 << 11, + canvas, + ratio = 1; + + if (typeof document !== "undefined") { + canvas = document.createElement("canvas"); + canvas.width = 1; + canvas.height = 1; + ratio = Math.sqrt(canvas.getContext("2d").getImageData(0, 0, 1, 1).data.length >> 2); + canvas.width = (cw << 5) / ratio; + canvas.height = ch / ratio; + } else { + // Attempt to use node-canvas. + canvas = new Canvas(cw << 5, ch); + } + + var c = canvas.getContext("2d"), + spirals = { + archimedean: archimedeanSpiral, + rectangular: rectangularSpiral + }; + c.fillStyle = c.strokeStyle = "red"; + c.textAlign = "center"; + + if (typeof module === "object" && module.exports) module.exports = cloud; + else (d3.layout || (d3.layout = {})).cloud = cloud; +})();
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