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Diffstat (limited to 'web/nms.gathering.org/speedometer/c3-master/src/c3.axis.js')
-rw-r--r-- | web/nms.gathering.org/speedometer/c3-master/src/c3.axis.js | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/web/nms.gathering.org/speedometer/c3-master/src/c3.axis.js b/web/nms.gathering.org/speedometer/c3-master/src/c3.axis.js new file mode 100644 index 0000000..6d4f7a3 --- /dev/null +++ b/web/nms.gathering.org/speedometer/c3-master/src/c3.axis.js @@ -0,0 +1,330 @@ +// Features: +// 1. category axis +// 2. ceil values of translate/x/y to int for half pixel antialiasing +// 3. multiline tick text +var tickTextCharSize; +function c3_axis(d3, params) { + var scale = d3.scale.linear(), orient = "bottom", innerTickSize = 6, outerTickSize, tickPadding = 3, tickValues = null, tickFormat, tickArguments; + + var tickOffset = 0, tickCulling = true, tickCentered; + + params = params || {}; + outerTickSize = params.withOuterTick ? 6 : 0; + + function axisX(selection, x) { + selection.attr("transform", function (d) { + return "translate(" + Math.ceil(x(d) + tickOffset) + ", 0)"; + }); + } + function axisY(selection, y) { + selection.attr("transform", function (d) { + return "translate(0," + Math.ceil(y(d)) + ")"; + }); + } + function scaleExtent(domain) { + var start = domain[0], stop = domain[domain.length - 1]; + return start < stop ? [ start, stop ] : [ stop, start ]; + } + function generateTicks(scale) { + var i, domain, ticks = []; + if (scale.ticks) { + return scale.ticks.apply(scale, tickArguments); + } + domain = scale.domain(); + for (i = Math.ceil(domain[0]); i < domain[1]; i++) { + ticks.push(i); + } + if (ticks.length > 0 && ticks[0] > 0) { + ticks.unshift(ticks[0] - (ticks[1] - ticks[0])); + } + return ticks; + } + function copyScale() { + var newScale = scale.copy(), domain; + if (params.isCategory) { + domain = scale.domain(); + newScale.domain([domain[0], domain[1] - 1]); + } + return newScale; + } + function textFormatted(v) { + var formatted = tickFormat ? tickFormat(v) : v; + return typeof formatted !== 'undefined' ? formatted : ''; + } + function getSizeFor1Char(tick) { + if (tickTextCharSize) { + return tickTextCharSize; + } + var size = { + h: 11.5, + w: 5.5 + }; + tick.select('text').text(textFormatted).each(function (d) { + var box = this.getBoundingClientRect(), + text = textFormatted(d), + h = box.height, + w = text ? (box.width / text.length) : undefined; + if (h && w) { + size.h = h; + size.w = w; + } + }).text(''); + tickTextCharSize = size; + return size; + } + function transitionise(selection) { + return params.withoutTransition ? selection : d3.transition(selection); + } + function axis(g) { + g.each(function () { + var g = axis.g = d3.select(this); + + var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = copyScale(); + + var ticks = tickValues ? tickValues : generateTicks(scale1), + tick = g.selectAll(".tick").data(ticks, scale1), + tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", 1e-6), + // MEMO: No exit transition. The reason is this transition affects max tick width calculation because old tick will be included in the ticks. + tickExit = tick.exit().remove(), + tickUpdate = transitionise(tick).style("opacity", 1), + tickTransform, tickX, tickY; + + var range = scale.rangeExtent ? scale.rangeExtent() : scaleExtent(scale.range()), + path = g.selectAll(".domain").data([ 0 ]), + pathUpdate = (path.enter().append("path").attr("class", "domain"), transitionise(path)); + tickEnter.append("line"); + tickEnter.append("text"); + + var lineEnter = tickEnter.select("line"), + lineUpdate = tickUpdate.select("line"), + textEnter = tickEnter.select("text"), + textUpdate = tickUpdate.select("text"); + + if (params.isCategory) { + tickOffset = Math.ceil((scale1(1) - scale1(0)) / 2); + tickX = tickCentered ? 0 : tickOffset; + tickY = tickCentered ? tickOffset : 0; + } else { + tickOffset = tickX = 0; + } + + var text, tspan, sizeFor1Char = getSizeFor1Char(g.select('.tick')), counts = []; + var tickLength = Math.max(innerTickSize, 0) + tickPadding, + isVertical = orient === 'left' || orient === 'right'; + + // this should be called only when category axis + function splitTickText(d, maxWidth) { + var tickText = textFormatted(d), + subtext, spaceIndex, textWidth, splitted = []; + + if (Object.prototype.toString.call(tickText) === "[object Array]") { + return tickText; + } + + if (!maxWidth || maxWidth <= 0) { + maxWidth = isVertical ? 95 : params.isCategory ? (Math.ceil(scale1(ticks[1]) - scale1(ticks[0])) - 12) : 110; + } + + function split(splitted, text) { + spaceIndex = undefined; + for (var i = 1; i < text.length; i++) { + if (text.charAt(i) === ' ') { + spaceIndex = i; + } + subtext = text.substr(0, i + 1); + textWidth = sizeFor1Char.w * subtext.length; + // if text width gets over tick width, split by space index or crrent index + if (maxWidth < textWidth) { + return split( + splitted.concat(text.substr(0, spaceIndex ? spaceIndex : i)), + text.slice(spaceIndex ? spaceIndex + 1 : i) + ); + } + } + return splitted.concat(text); + } + + return split(splitted, tickText + ""); + } + + function tspanDy(d, i) { + var dy = sizeFor1Char.h; + if (i === 0) { + if (orient === 'left' || orient === 'right') { + dy = -((counts[d.index] - 1) * (sizeFor1Char.h / 2) - 3); + } else { + dy = ".71em"; + } + } + return dy; + } + + function tickSize(d) { + var tickPosition = scale(d) + (tickCentered ? 0 : tickOffset); + return range[0] < tickPosition && tickPosition < range[1] ? innerTickSize : 0; + } + + text = tick.select("text"); + tspan = text.selectAll('tspan') + .data(function (d, i) { + var splitted = params.tickMultiline ? splitTickText(d, params.tickWidth) : [].concat(textFormatted(d)); + counts[i] = splitted.length; + return splitted.map(function (s) { + return { index: i, splitted: s }; + }); + }); + tspan.enter().append('tspan'); + tspan.exit().remove(); + tspan.text(function (d) { return d.splitted; }); + + var rotate = params.tickTextRotate; + + function textAnchorForText(rotate) { + if (!rotate) { + return 'middle'; + } + return rotate > 0 ? "start" : "end"; + } + function textTransform(rotate) { + if (!rotate) { + return ''; + } + return "rotate(" + rotate + ")"; + } + function dxForText(rotate) { + if (!rotate) { + return 0; + } + return 8 * Math.sin(Math.PI * (rotate / 180)); + } + function yForText(rotate) { + if (!rotate) { + return tickLength; + } + return 11.5 - 2.5 * (rotate / 15) * (rotate > 0 ? 1 : -1); + } + + switch (orient) { + case "bottom": + { + tickTransform = axisX; + lineEnter.attr("y2", innerTickSize); + textEnter.attr("y", tickLength); + lineUpdate.attr("x1", tickX).attr("x2", tickX).attr("y2", tickSize); + textUpdate.attr("x", 0).attr("y", yForText(rotate)) + .style("text-anchor", textAnchorForText(rotate)) + .attr("transform", textTransform(rotate)); + tspan.attr('x', 0).attr("dy", tspanDy).attr('dx', dxForText(rotate)); + pathUpdate.attr("d", "M" + range[0] + "," + outerTickSize + "V0H" + range[1] + "V" + outerTickSize); + break; + } + case "top": + { + // TODO: rotated tick text + tickTransform = axisX; + lineEnter.attr("y2", -innerTickSize); + textEnter.attr("y", -tickLength); + lineUpdate.attr("x2", 0).attr("y2", -innerTickSize); + textUpdate.attr("x", 0).attr("y", -tickLength); + text.style("text-anchor", "middle"); + tspan.attr('x', 0).attr("dy", "0em"); + pathUpdate.attr("d", "M" + range[0] + "," + -outerTickSize + "V0H" + range[1] + "V" + -outerTickSize); + break; + } + case "left": + { + tickTransform = axisY; + lineEnter.attr("x2", -innerTickSize); + textEnter.attr("x", -tickLength); + lineUpdate.attr("x2", -innerTickSize).attr("y1", tickY).attr("y2", tickY); + textUpdate.attr("x", -tickLength).attr("y", tickOffset); + text.style("text-anchor", "end"); + tspan.attr('x', -tickLength).attr("dy", tspanDy); + pathUpdate.attr("d", "M" + -outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + -outerTickSize); + break; + } + case "right": + { + tickTransform = axisY; + lineEnter.attr("x2", innerTickSize); + textEnter.attr("x", tickLength); + lineUpdate.attr("x2", innerTickSize).attr("y2", 0); + textUpdate.attr("x", tickLength).attr("y", 0); + text.style("text-anchor", "start"); + tspan.attr('x', tickLength).attr("dy", tspanDy); + pathUpdate.attr("d", "M" + outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + outerTickSize); + break; + } + } + if (scale1.rangeBand) { + var x = scale1, dx = x.rangeBand() / 2; + scale0 = scale1 = function (d) { + return x(d) + dx; + }; + } else if (scale0.rangeBand) { + scale0 = scale1; + } else { + tickExit.call(tickTransform, scale1); + } + tickEnter.call(tickTransform, scale0); + tickUpdate.call(tickTransform, scale1); + }); + } + axis.scale = function (x) { + if (!arguments.length) { return scale; } + scale = x; + return axis; + }; + axis.orient = function (x) { + if (!arguments.length) { return orient; } + orient = x in {top: 1, right: 1, bottom: 1, left: 1} ? x + "" : "bottom"; + return axis; + }; + axis.tickFormat = function (format) { + if (!arguments.length) { return tickFormat; } + tickFormat = format; + return axis; + }; + axis.tickCentered = function (isCentered) { + if (!arguments.length) { return tickCentered; } + tickCentered = isCentered; + return axis; + }; + axis.tickOffset = function () { + return tickOffset; + }; + axis.tickInterval = function () { + var interval, length; + if (params.isCategory) { + interval = tickOffset * 2; + } + else { + length = axis.g.select('path.domain').node().getTotalLength() - outerTickSize * 2; + interval = length / axis.g.selectAll('line').size(); + } + return interval === Infinity ? 0 : interval; + }; + axis.ticks = function () { + if (!arguments.length) { return tickArguments; } + tickArguments = arguments; + return axis; + }; + axis.tickCulling = function (culling) { + if (!arguments.length) { return tickCulling; } + tickCulling = culling; + return axis; + }; + axis.tickValues = function (x) { + if (typeof x === 'function') { + tickValues = function () { + return x(scale.domain()); + }; + } + else { + if (!arguments.length) { return tickValues; } + tickValues = x; + } + return axis; + }; + return axis; +} |