mirror of https://github.com/masayuki0812/c3.git
Quite good looking graph derived from d3.js
http://c3js.org
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734 lines
30 KiB
734 lines
30 KiB
import {CLASS,isValue,isFunction,isString,isUndefined,isDefined,ceil10,asHalfPixel,diffDomain,isEmpty,notEmpty,getOption,hasValue,sanitise,getPathBox, ChartInternal} from './chartinternal.js'; |
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function API(owner) { |
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this.owner = owner; |
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} |
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function inherit(base, derived) { |
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if (Object.create) { |
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derived.prototype = Object.create(base.prototype); |
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} else { |
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const f = function f() {}; |
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f.prototype = base.prototype; |
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derived.prototype = new f(); |
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} |
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derived.prototype.constructor = derived; |
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return derived; |
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} |
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// Features: |
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// 1. category axis |
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// 2. ceil values of translate/x/y to int for half pixel antialiasing |
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// 3. multiline tick text |
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let tickTextCharSize; |
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function c3_axis(d3, params) { |
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let scale = d3.scale.linear(), orient = 'bottom', innerTickSize = 6, outerTickSize, tickPadding = 3, tickValues = null, tickFormat, tickArguments; |
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let tickOffset = 0, tickCulling = true, tickCentered; |
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params = params || {}; |
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outerTickSize = params.withOuterTick ? 6 : 0; |
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function axisX(selection, x) { |
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selection.attr('transform', (d) => { |
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return 'translate(' + Math.ceil(x(d) + tickOffset) + ', 0)'; |
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}); |
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} |
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function axisY(selection, y) { |
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selection.attr('transform', (d) => { |
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return 'translate(0,' + Math.ceil(y(d)) + ')'; |
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}); |
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} |
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function scaleExtent(domain) { |
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let start = domain[0], stop = domain[domain.length - 1]; |
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return start < stop ? [start, stop] : [stop, start]; |
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} |
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function generateTicks(scale) { |
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let i, domain, ticks = []; |
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if (scale.ticks) { |
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return scale.ticks.apply(scale, tickArguments); |
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} |
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domain = scale.domain(); |
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for (i = Math.ceil(domain[0]); i < domain[1]; i++) { |
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ticks.push(i); |
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} |
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if (ticks.length > 0 && ticks[0] > 0) { |
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ticks.unshift(ticks[0] - (ticks[1] - ticks[0])); |
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} |
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return ticks; |
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} |
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function copyScale() { |
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let newScale = scale.copy(), domain; |
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if (params.isCategory) { |
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domain = scale.domain(); |
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newScale.domain([domain[0], domain[1] - 1]); |
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} |
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return newScale; |
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} |
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function textFormatted(v) { |
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const formatted = tickFormat ? tickFormat(v) : v; |
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return typeof formatted !== 'undefined' ? formatted : ''; |
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} |
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function getSizeFor1Char(tick) { |
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if (tickTextCharSize) { |
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return tickTextCharSize; |
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} |
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const size = { |
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h: 11.5, |
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w: 5.5, |
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}; |
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tick.select('text').text(textFormatted).each(function (d) { |
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let box = this.getBoundingClientRect(), |
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text = textFormatted(d), |
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h = box.height, |
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w = text ? (box.width / text.length) : undefined; |
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if (h && w) { |
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size.h = h; |
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size.w = w; |
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} |
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}).text(''); |
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tickTextCharSize = size; |
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return size; |
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} |
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function transitionise(selection) { |
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return params.withoutTransition ? selection : d3.transition(selection); |
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} |
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function axis(g) { |
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g.each(function () { |
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const g = axis.g = d3.select(this); |
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let scale0 = this.__chart__ || scale, scale1 = this.__chart__ = copyScale(); |
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let ticks = tickValues ? tickValues : generateTicks(scale1), |
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tick = g.selectAll('.tick').data(ticks, scale1), |
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tickEnter = tick.enter().insert('g', '.domain').attr('class', 'tick').style('opacity', 1e-6), |
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// MEMO: No exit transition. The reason is this transition affects max tick width calculation because old tick will be included in the ticks. |
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tickExit = tick.exit().remove(), |
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tickUpdate = transitionise(tick).style('opacity', 1), |
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tickTransform, tickX, tickY; |
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let range = scale.rangeExtent ? scale.rangeExtent() : scaleExtent(scale.range()), |
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path = g.selectAll('.domain').data([0]), |
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pathUpdate = (path.enter().append('path').attr('class', 'domain'), transitionise(path)); |
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tickEnter.append('line'); |
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tickEnter.append('text'); |
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let lineEnter = tickEnter.select('line'), |
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lineUpdate = tickUpdate.select('line'), |
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textEnter = tickEnter.select('text'), |
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textUpdate = tickUpdate.select('text'); |
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if (params.isCategory) { |
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tickOffset = Math.ceil((scale1(1) - scale1(0)) / 2); |
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tickX = tickCentered ? 0 : tickOffset; |
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tickY = tickCentered ? tickOffset : 0; |
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} else { |
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tickOffset = tickX = 0; |
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} |
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let text, tspan, sizeFor1Char = getSizeFor1Char(g.select('.tick')), counts = []; |
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let tickLength = Math.max(innerTickSize, 0) + tickPadding, |
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isVertical = orient === 'left' || orient === 'right'; |
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// this should be called only when category axis |
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function splitTickText(d, maxWidth) { |
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let tickText = textFormatted(d), |
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subtext, spaceIndex, textWidth, splitted = []; |
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if (Object.prototype.toString.call(tickText) === '[object Array]') { |
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return tickText; |
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} |
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if (!maxWidth || maxWidth <= 0) { |
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maxWidth = isVertical ? 95 : params.isCategory ? (Math.ceil(scale1(ticks[1]) - scale1(ticks[0])) - 12) : 110; |
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} |
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function split(splitted, text) { |
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spaceIndex = undefined; |
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for (let i = 1; i < text.length; i++) { |
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if (text.charAt(i) === ' ') { |
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spaceIndex = i; |
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} |
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subtext = text.substr(0, i + 1); |
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textWidth = sizeFor1Char.w * subtext.length; |
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// if text width gets over tick width, split by space index or crrent index |
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if (maxWidth < textWidth) { |
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return split( |
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splitted.concat(text.substr(0, spaceIndex ? spaceIndex : i)), |
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text.slice(spaceIndex ? spaceIndex + 1 : i) |
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); |
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} |
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} |
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return splitted.concat(text); |
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} |
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return split(splitted, tickText + ''); |
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} |
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function tspanDy(d, i) { |
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let dy = sizeFor1Char.h; |
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if (i === 0) { |
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if (orient === 'left' || orient === 'right') { |
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dy = -((counts[d.index] - 1) * (sizeFor1Char.h / 2) - 3); |
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} else { |
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dy = '.71em'; |
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} |
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} |
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return dy; |
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} |
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function tickSize(d) { |
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const tickPosition = scale(d) + (tickCentered ? 0 : tickOffset); |
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return range[0] < tickPosition && tickPosition < range[1] ? innerTickSize : 0; |
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} |
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text = tick.select('text'); |
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tspan = text.selectAll('tspan') |
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.data((d, i) => { |
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const splitted = params.tickMultiline ? splitTickText(d, params.tickWidth) : [].concat(textFormatted(d)); |
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counts[i] = splitted.length; |
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return splitted.map((s) => { |
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return { index: i, splitted: s }; |
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}); |
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}); |
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tspan.enter().append('tspan'); |
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tspan.exit().remove(); |
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tspan.text((d) => { return d.splitted; }); |
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const rotate = params.tickTextRotate; |
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function textAnchorForText(rotate) { |
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if (!rotate) { |
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return 'middle'; |
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} |
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return rotate > 0 ? 'start' : 'end'; |
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} |
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function textTransform(rotate) { |
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if (!rotate) { |
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return ''; |
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} |
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return 'rotate(' + rotate + ')'; |
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} |
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function dxForText(rotate) { |
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if (!rotate) { |
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return 0; |
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} |
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return 8 * Math.sin(Math.PI * (rotate / 180)); |
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} |
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function yForText(rotate) { |
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if (!rotate) { |
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return tickLength; |
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} |
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return 11.5 - 2.5 * (rotate / 15) * (rotate > 0 ? 1 : -1); |
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} |
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switch (orient) { |
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case 'bottom': |
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{ |
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tickTransform = axisX; |
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lineEnter.attr('y2', innerTickSize); |
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textEnter.attr('y', tickLength); |
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lineUpdate.attr('x1', tickX).attr('x2', tickX).attr('y2', tickSize); |
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textUpdate.attr('x', 0).attr('y', yForText(rotate)) |
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.style('text-anchor', textAnchorForText(rotate)) |
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.attr('transform', textTransform(rotate)); |
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tspan.attr('x', 0).attr('dy', tspanDy).attr('dx', dxForText(rotate)); |
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pathUpdate.attr('d', 'M' + range[0] + ',' + outerTickSize + 'V0H' + range[1] + 'V' + outerTickSize); |
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break; |
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} |
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case 'top': |
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{ |
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// TODO: rotated tick text |
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tickTransform = axisX; |
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lineEnter.attr('y2', -innerTickSize); |
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textEnter.attr('y', -tickLength); |
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lineUpdate.attr('x2', 0).attr('y2', -innerTickSize); |
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textUpdate.attr('x', 0).attr('y', -tickLength); |
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text.style('text-anchor', 'middle'); |
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tspan.attr('x', 0).attr('dy', '0em'); |
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pathUpdate.attr('d', 'M' + range[0] + ',' + -outerTickSize + 'V0H' + range[1] + 'V' + -outerTickSize); |
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break; |
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} |
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case 'left': |
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{ |
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tickTransform = axisY; |
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lineEnter.attr('x2', -innerTickSize); |
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textEnter.attr('x', -tickLength); |
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lineUpdate.attr('x2', -innerTickSize).attr('y1', tickY).attr('y2', tickY); |
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textUpdate.attr('x', -tickLength).attr('y', tickOffset); |
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text.style('text-anchor', 'end'); |
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tspan.attr('x', -tickLength).attr('dy', tspanDy); |
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pathUpdate.attr('d', 'M' + -outerTickSize + ',' + range[0] + 'H0V' + range[1] + 'H' + -outerTickSize); |
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break; |
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} |
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case 'right': |
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{ |
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tickTransform = axisY; |
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lineEnter.attr('x2', innerTickSize); |
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textEnter.attr('x', tickLength); |
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lineUpdate.attr('x2', innerTickSize).attr('y2', 0); |
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textUpdate.attr('x', tickLength).attr('y', 0); |
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text.style('text-anchor', 'start'); |
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tspan.attr('x', tickLength).attr('dy', tspanDy); |
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pathUpdate.attr('d', 'M' + outerTickSize + ',' + range[0] + 'H0V' + range[1] + 'H' + outerTickSize); |
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break; |
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} |
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} |
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if (scale1.rangeBand) { |
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let x = scale1, dx = x.rangeBand() / 2; |
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scale0 = scale1 = function (d) { |
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return x(d) + dx; |
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}; |
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} else if (scale0.rangeBand) { |
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scale0 = scale1; |
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} else { |
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tickExit.call(tickTransform, scale1); |
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} |
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tickEnter.call(tickTransform, scale0); |
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tickUpdate.call(tickTransform, scale1); |
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}); |
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} |
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axis.scale = function (x) { |
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if (!arguments.length) { return scale; } |
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scale = x; |
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return axis; |
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}; |
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axis.orient = function (x) { |
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if (!arguments.length) { return orient; } |
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orient = x in { top: 1, right: 1, bottom: 1, left: 1 } ? x + '' : 'bottom'; |
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return axis; |
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}; |
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axis.tickFormat = function (format) { |
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if (!arguments.length) { return tickFormat; } |
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tickFormat = format; |
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return axis; |
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}; |
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axis.tickCentered = function (isCentered) { |
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if (!arguments.length) { return tickCentered; } |
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tickCentered = isCentered; |
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return axis; |
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}; |
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axis.tickOffset = function () { |
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return tickOffset; |
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}; |
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axis.tickInterval = function () { |
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let interval, length; |
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if (params.isCategory) { |
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interval = tickOffset * 2; |
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} |
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else { |
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length = axis.g.select('path.domain').node().getTotalLength() - outerTickSize * 2; |
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interval = length / axis.g.selectAll('line').size(); |
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} |
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return interval === Infinity ? 0 : interval; |
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}; |
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axis.ticks = function () { |
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if (!arguments.length) { return tickArguments; } |
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tickArguments = arguments; |
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return axis; |
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}; |
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axis.tickCulling = function (culling) { |
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if (!arguments.length) { return tickCulling; } |
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tickCulling = culling; |
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return axis; |
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}; |
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axis.tickValues = function (x) { |
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if (typeof x === 'function') { |
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tickValues = function () { |
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return x(scale.domain()); |
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}; |
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} |
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else { |
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if (!arguments.length) { return tickValues; } |
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tickValues = x; |
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} |
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return axis; |
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}; |
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return axis; |
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} |
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function Axis(owner) { |
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API.call(this, owner); |
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} |
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inherit(API, Axis); |
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Axis.prototype.init = function init() { |
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let $$ = this.owner, config = $$.config, main = $$.main; |
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$$.axes.x = main.append('g') |
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.attr('class', CLASS.axis + ' ' + CLASS.axisX) |
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.attr('clip-path', $$.clipPathForXAxis) |
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.attr('transform', $$.getTranslate('x')) |
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.style('visibility', config.axis_x_show ? 'visible' : 'hidden'); |
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$$.axes.x.append('text') |
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.attr('class', CLASS.axisXLabel) |
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.attr('transform', config.axis_rotated ? 'rotate(-90)' : '') |
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.style('text-anchor', this.textAnchorForXAxisLabel.bind(this)); |
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$$.axes.y = main.append('g') |
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.attr('class', CLASS.axis + ' ' + CLASS.axisY) |
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.attr('clip-path', config.axis_y_inner ? '' : $$.clipPathForYAxis) |
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.attr('transform', $$.getTranslate('y')) |
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.style('visibility', config.axis_y_show ? 'visible' : 'hidden'); |
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$$.axes.y.append('text') |
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.attr('class', CLASS.axisYLabel) |
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.attr('transform', config.axis_rotated ? '' : 'rotate(-90)') |
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.style('text-anchor', this.textAnchorForYAxisLabel.bind(this)); |
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$$.axes.y2 = main.append('g') |
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.attr('class', CLASS.axis + ' ' + CLASS.axisY2) |
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// clip-path? |
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.attr('transform', $$.getTranslate('y2')) |
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.style('visibility', config.axis_y2_show ? 'visible' : 'hidden'); |
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$$.axes.y2.append('text') |
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.attr('class', CLASS.axisY2Label) |
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.attr('transform', config.axis_rotated ? '' : 'rotate(-90)') |
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.style('text-anchor', this.textAnchorForY2AxisLabel.bind(this)); |
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}; |
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Axis.prototype.getXAxis = function getXAxis(scale, orient, tickFormat, tickValues, withOuterTick, withoutTransition, withoutRotateTickText) { |
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let $$ = this.owner, config = $$.config, |
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axisParams = { |
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isCategory: $$.isCategorized(), |
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withOuterTick, |
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tickMultiline: config.axis_x_tick_multiline, |
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tickWidth: config.axis_x_tick_width, |
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tickTextRotate: withoutRotateTickText ? 0 : config.axis_x_tick_rotate, |
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withoutTransition, |
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}, |
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axis = c3_axis($$.d3, axisParams).scale(scale).orient(orient); |
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if ($$.isTimeSeries() && tickValues && typeof tickValues !== 'function') { |
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tickValues = tickValues.map((v) => { return $$.parseDate(v); }); |
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} |
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// Set tick |
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axis.tickFormat(tickFormat).tickValues(tickValues); |
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if ($$.isCategorized()) { |
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axis.tickCentered(config.axis_x_tick_centered); |
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if (isEmpty(config.axis_x_tick_culling)) { |
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config.axis_x_tick_culling = false; |
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} |
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} |
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return axis; |
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}; |
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Axis.prototype.updateXAxisTickValues = function updateXAxisTickValues(targets, axis) { |
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let $$ = this.owner, config = $$.config, tickValues; |
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if (config.axis_x_tick_fit || config.axis_x_tick_count) { |
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tickValues = this.generateTickValues($$.mapTargetsToUniqueXs(targets), config.axis_x_tick_count, $$.isTimeSeries()); |
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} |
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if (axis) { |
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axis.tickValues(tickValues); |
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} else { |
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$$.xAxis.tickValues(tickValues); |
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$$.subXAxis.tickValues(tickValues); |
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} |
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return tickValues; |
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}; |
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Axis.prototype.getYAxis = function getYAxis(scale, orient, tickFormat, tickValues, withOuterTick, withoutTransition, withoutRotateTickText) { |
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let $$ = this.owner, config = $$.config, |
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axisParams = { |
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withOuterTick, |
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withoutTransition, |
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tickTextRotate: withoutRotateTickText ? 0 : config.axis_y_tick_rotate, |
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}, |
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axis = c3_axis($$.d3, axisParams).scale(scale).orient(orient).tickFormat(tickFormat); |
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if ($$.isTimeSeriesY()) { |
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axis.ticks($$.d3.time[config.axis_y_tick_time_value], config.axis_y_tick_time_interval); |
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} else { |
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axis.tickValues(tickValues); |
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} |
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return axis; |
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}; |
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Axis.prototype.getId = function getId(id) { |
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const config = this.owner.config; |
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return id in config.data_axes ? config.data_axes[id] : 'y'; |
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}; |
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Axis.prototype.getXAxisTickFormat = function getXAxisTickFormat() { |
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let $$ = this.owner, config = $$.config, |
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format = $$.isTimeSeries() ? $$.defaultAxisTimeFormat : $$.isCategorized() ? $$.categoryName : function (v) { return v < 0 ? v.toFixed(0) : v; }; |
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if (config.axis_x_tick_format) { |
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if (isFunction(config.axis_x_tick_format)) { |
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format = config.axis_x_tick_format; |
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} else if ($$.isTimeSeries()) { |
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format = function (date) { |
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return date ? $$.axisTimeFormat(config.axis_x_tick_format)(date) : ''; |
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}; |
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} |
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} |
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return isFunction(format) ? function (v) { return format.call($$, v); } : format; |
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}; |
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Axis.prototype.getTickValues = function getTickValues(tickValues, axis) { |
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return tickValues ? tickValues : axis ? axis.tickValues() : undefined; |
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}; |
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Axis.prototype.getXAxisTickValues = function getXAxisTickValues() { |
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return this.getTickValues(this.owner.config.axis_x_tick_values, this.owner.xAxis); |
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}; |
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Axis.prototype.getYAxisTickValues = function getYAxisTickValues() { |
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return this.getTickValues(this.owner.config.axis_y_tick_values, this.owner.yAxis); |
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}; |
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Axis.prototype.getY2AxisTickValues = function getY2AxisTickValues() { |
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return this.getTickValues(this.owner.config.axis_y2_tick_values, this.owner.y2Axis); |
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}; |
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Axis.prototype.getLabelOptionByAxisId = function getLabelOptionByAxisId(axisId) { |
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let $$ = this.owner, config = $$.config, option; |
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if (axisId === 'y') { |
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option = config.axis_y_label; |
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} else if (axisId === 'y2') { |
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option = config.axis_y2_label; |
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} else if (axisId === 'x') { |
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option = config.axis_x_label; |
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} |
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return option; |
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}; |
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Axis.prototype.getLabelText = function getLabelText(axisId) { |
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const option = this.getLabelOptionByAxisId(axisId); |
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return isString(option) ? option : option ? option.text : null; |
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}; |
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Axis.prototype.setLabelText = function setLabelText(axisId, text) { |
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let $$ = this.owner, config = $$.config, |
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option = this.getLabelOptionByAxisId(axisId); |
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if (isString(option)) { |
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if (axisId === 'y') { |
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config.axis_y_label = text; |
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} else if (axisId === 'y2') { |
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config.axis_y2_label = text; |
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} else if (axisId === 'x') { |
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config.axis_x_label = text; |
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} |
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} else if (option) { |
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option.text = text; |
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} |
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}; |
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Axis.prototype.getLabelPosition = function getLabelPosition(axisId, defaultPosition) { |
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let option = this.getLabelOptionByAxisId(axisId), |
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position = (option && typeof option === 'object' && option.position) ? option.position : defaultPosition; |
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return { |
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isInner: position.indexOf('inner') >= 0, |
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isOuter: position.indexOf('outer') >= 0, |
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isLeft: position.indexOf('left') >= 0, |
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isCenter: position.indexOf('center') >= 0, |
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isRight: position.indexOf('right') >= 0, |
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isTop: position.indexOf('top') >= 0, |
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isMiddle: position.indexOf('middle') >= 0, |
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isBottom: position.indexOf('bottom') >= 0, |
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}; |
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}; |
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Axis.prototype.getXAxisLabelPosition = function getXAxisLabelPosition() { |
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return this.getLabelPosition('x', this.owner.config.axis_rotated ? 'inner-top' : 'inner-right'); |
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}; |
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Axis.prototype.getYAxisLabelPosition = function getYAxisLabelPosition() { |
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return this.getLabelPosition('y', this.owner.config.axis_rotated ? 'inner-right' : 'inner-top'); |
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}; |
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Axis.prototype.getY2AxisLabelPosition = function getY2AxisLabelPosition() { |
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return this.getLabelPosition('y2', this.owner.config.axis_rotated ? 'inner-right' : 'inner-top'); |
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}; |
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Axis.prototype.getLabelPositionById = function getLabelPositionById(id) { |
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return id === 'y2' ? this.getY2AxisLabelPosition() : id === 'y' ? this.getYAxisLabelPosition() : this.getXAxisLabelPosition(); |
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}; |
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Axis.prototype.textForXAxisLabel = function textForXAxisLabel() { |
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return this.getLabelText('x'); |
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}; |
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Axis.prototype.textForYAxisLabel = function textForYAxisLabel() { |
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return this.getLabelText('y'); |
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}; |
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Axis.prototype.textForY2AxisLabel = function textForY2AxisLabel() { |
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return this.getLabelText('y2'); |
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}; |
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Axis.prototype.xForAxisLabel = function xForAxisLabel(forHorizontal, position) { |
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const $$ = this.owner; |
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if (forHorizontal) { |
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return position.isLeft ? 0 : position.isCenter ? $$.width / 2 : $$.width; |
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} else { |
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return position.isBottom ? -$$.height : position.isMiddle ? -$$.height / 2 : 0; |
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} |
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}; |
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Axis.prototype.dxForAxisLabel = function dxForAxisLabel(forHorizontal, position) { |
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if (forHorizontal) { |
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return position.isLeft ? '0.5em' : position.isRight ? '-0.5em' : '0'; |
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} else { |
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return position.isTop ? '-0.5em' : position.isBottom ? '0.5em' : '0'; |
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} |
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}; |
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Axis.prototype.textAnchorForAxisLabel = function textAnchorForAxisLabel(forHorizontal, position) { |
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if (forHorizontal) { |
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return position.isLeft ? 'start' : position.isCenter ? 'middle' : 'end'; |
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} else { |
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return position.isBottom ? 'start' : position.isMiddle ? 'middle' : 'end'; |
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} |
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}; |
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Axis.prototype.xForXAxisLabel = function xForXAxisLabel() { |
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return this.xForAxisLabel(!this.owner.config.axis_rotated, this.getXAxisLabelPosition()); |
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}; |
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Axis.prototype.xForYAxisLabel = function xForYAxisLabel() { |
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return this.xForAxisLabel(this.owner.config.axis_rotated, this.getYAxisLabelPosition()); |
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}; |
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Axis.prototype.xForY2AxisLabel = function xForY2AxisLabel() { |
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return this.xForAxisLabel(this.owner.config.axis_rotated, this.getY2AxisLabelPosition()); |
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}; |
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Axis.prototype.dxForXAxisLabel = function dxForXAxisLabel() { |
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return this.dxForAxisLabel(!this.owner.config.axis_rotated, this.getXAxisLabelPosition()); |
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}; |
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Axis.prototype.dxForYAxisLabel = function dxForYAxisLabel() { |
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return this.dxForAxisLabel(this.owner.config.axis_rotated, this.getYAxisLabelPosition()); |
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}; |
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Axis.prototype.dxForY2AxisLabel = function dxForY2AxisLabel() { |
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return this.dxForAxisLabel(this.owner.config.axis_rotated, this.getY2AxisLabelPosition()); |
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}; |
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Axis.prototype.dyForXAxisLabel = function dyForXAxisLabel() { |
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let $$ = this.owner, config = $$.config, |
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position = this.getXAxisLabelPosition(); |
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if (config.axis_rotated) { |
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return position.isInner ? '1.2em' : -25 - this.getMaxTickWidth('x'); |
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} else { |
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return position.isInner ? '-0.5em' : config.axis_x_height ? config.axis_x_height - 10 : '3em'; |
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} |
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}; |
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Axis.prototype.dyForYAxisLabel = function dyForYAxisLabel() { |
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let $$ = this.owner, |
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position = this.getYAxisLabelPosition(); |
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if ($$.config.axis_rotated) { |
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return position.isInner ? '-0.5em' : '3em'; |
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} else { |
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return position.isInner ? '1.2em' : -10 - ($$.config.axis_y_inner ? 0 : (this.getMaxTickWidth('y') + 10)); |
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} |
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}; |
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Axis.prototype.dyForY2AxisLabel = function dyForY2AxisLabel() { |
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let $$ = this.owner, |
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position = this.getY2AxisLabelPosition(); |
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if ($$.config.axis_rotated) { |
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return position.isInner ? '1.2em' : '-2.2em'; |
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} else { |
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return position.isInner ? '-0.5em' : 15 + ($$.config.axis_y2_inner ? 0 : (this.getMaxTickWidth('y2') + 15)); |
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} |
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}; |
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Axis.prototype.textAnchorForXAxisLabel = function textAnchorForXAxisLabel() { |
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const $$ = this.owner; |
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return this.textAnchorForAxisLabel(!$$.config.axis_rotated, this.getXAxisLabelPosition()); |
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}; |
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Axis.prototype.textAnchorForYAxisLabel = function textAnchorForYAxisLabel() { |
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const $$ = this.owner; |
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return this.textAnchorForAxisLabel($$.config.axis_rotated, this.getYAxisLabelPosition()); |
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}; |
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Axis.prototype.textAnchorForY2AxisLabel = function textAnchorForY2AxisLabel() { |
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const $$ = this.owner; |
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return this.textAnchorForAxisLabel($$.config.axis_rotated, this.getY2AxisLabelPosition()); |
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}; |
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Axis.prototype.getMaxTickWidth = function getMaxTickWidth(id, withoutRecompute) { |
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let $$ = this.owner, config = $$.config, |
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maxWidth = 0, targetsToShow, scale, axis, dummy, svg; |
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if (withoutRecompute && $$.currentMaxTickWidths[id]) { |
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return $$.currentMaxTickWidths[id]; |
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} |
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if ($$.svg) { |
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targetsToShow = $$.filterTargetsToShow($$.data.targets); |
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if (id === 'y') { |
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scale = $$.y.copy().domain($$.getYDomain(targetsToShow, 'y')); |
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axis = this.getYAxis(scale, $$.yOrient, config.axis_y_tick_format, $$.yAxisTickValues, false, true, true); |
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} else if (id === 'y2') { |
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scale = $$.y2.copy().domain($$.getYDomain(targetsToShow, 'y2')); |
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axis = this.getYAxis(scale, $$.y2Orient, config.axis_y2_tick_format, $$.y2AxisTickValues, false, true, true); |
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} else { |
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scale = $$.x.copy().domain($$.getXDomain(targetsToShow)); |
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axis = this.getXAxis(scale, $$.xOrient, $$.xAxisTickFormat, $$.xAxisTickValues, false, true, true); |
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this.updateXAxisTickValues(targetsToShow, axis); |
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} |
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dummy = $$.d3.select('body').append('div').classed('c3', true); |
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svg = dummy.append('svg').style('visibility', 'hidden').style('position', 'fixed').style('top', 0).style('left', 0), |
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svg.append('g').call(axis).each(function () { |
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$$.d3.select(this).selectAll('text').each(function () { |
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const box = this.getBoundingClientRect(); |
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if (maxWidth < box.width) { maxWidth = box.width; } |
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}); |
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dummy.remove(); |
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}); |
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} |
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$$.currentMaxTickWidths[id] = maxWidth <= 0 ? $$.currentMaxTickWidths[id] : maxWidth; |
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return $$.currentMaxTickWidths[id]; |
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}; |
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|
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Axis.prototype.updateLabels = function updateLabels(withTransition) { |
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const $$ = this.owner; |
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let axisXLabel = $$.main.select('.' + CLASS.axisX + ' .' + CLASS.axisXLabel), |
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axisYLabel = $$.main.select('.' + CLASS.axisY + ' .' + CLASS.axisYLabel), |
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axisY2Label = $$.main.select('.' + CLASS.axisY2 + ' .' + CLASS.axisY2Label); |
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(withTransition ? axisXLabel.transition() : axisXLabel) |
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.attr('x', this.xForXAxisLabel.bind(this)) |
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.attr('dx', this.dxForXAxisLabel.bind(this)) |
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.attr('dy', this.dyForXAxisLabel.bind(this)) |
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.text(this.textForXAxisLabel.bind(this)); |
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(withTransition ? axisYLabel.transition() : axisYLabel) |
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.attr('x', this.xForYAxisLabel.bind(this)) |
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.attr('dx', this.dxForYAxisLabel.bind(this)) |
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.attr('dy', this.dyForYAxisLabel.bind(this)) |
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.text(this.textForYAxisLabel.bind(this)); |
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(withTransition ? axisY2Label.transition() : axisY2Label) |
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.attr('x', this.xForY2AxisLabel.bind(this)) |
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.attr('dx', this.dxForY2AxisLabel.bind(this)) |
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.attr('dy', this.dyForY2AxisLabel.bind(this)) |
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.text(this.textForY2AxisLabel.bind(this)); |
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}; |
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Axis.prototype.getPadding = function getPadding(padding, key, defaultValue, domainLength) { |
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const p = typeof padding === 'number' ? padding : padding[key]; |
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if (!isValue(p)) { |
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return defaultValue; |
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} |
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if (padding.unit === 'ratio') { |
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return padding[key] * domainLength; |
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} |
|
// assume padding is pixels if unit is not specified |
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return this.convertPixelsToAxisPadding(p, domainLength); |
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}; |
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Axis.prototype.convertPixelsToAxisPadding = function convertPixelsToAxisPadding(pixels, domainLength) { |
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let $$ = this.owner, |
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length = $$.config.axis_rotated ? $$.width : $$.height; |
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return domainLength * (pixels / length); |
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}; |
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Axis.prototype.generateTickValues = function generateTickValues(values, tickCount, forTimeSeries) { |
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let tickValues = values, targetCount, start, end, count, interval, i, tickValue; |
|
if (tickCount) { |
|
targetCount = isFunction(tickCount) ? tickCount() : tickCount; |
|
// compute ticks according to tickCount |
|
if (targetCount === 1) { |
|
tickValues = [values[0]]; |
|
} else if (targetCount === 2) { |
|
tickValues = [values[0], values[values.length - 1]]; |
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} else if (targetCount > 2) { |
|
count = targetCount - 2; |
|
start = values[0]; |
|
end = values[values.length - 1]; |
|
interval = (end - start) / (count + 1); |
|
// re-construct unique values |
|
tickValues = [start]; |
|
for (i = 0; i < count; i++) { |
|
tickValue = +start + interval * (i + 1); |
|
tickValues.push(forTimeSeries ? new Date(tickValue) : tickValue); |
|
} |
|
tickValues.push(end); |
|
} |
|
} |
|
if (!forTimeSeries) { tickValues = tickValues.sort((a, b) => { return a - b; }); } |
|
return tickValues; |
|
}; |
|
Axis.prototype.generateTransitions = function generateTransitions(duration) { |
|
let $$ = this.owner, axes = $$.axes; |
|
return { |
|
axisX: duration ? axes.x.transition().duration(duration) : axes.x, |
|
axisY: duration ? axes.y.transition().duration(duration) : axes.y, |
|
axisY2: duration ? axes.y2.transition().duration(duration) : axes.y2, |
|
axisSubX: duration ? axes.subx.transition().duration(duration) : axes.subx, |
|
}; |
|
}; |
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Axis.prototype.redraw = function redraw(transitions, isHidden) { |
|
const $$ = this.owner; |
|
$$.axes.x.style('opacity', isHidden ? 0 : 1); |
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$$.axes.y.style('opacity', isHidden ? 0 : 1); |
|
$$.axes.y2.style('opacity', isHidden ? 0 : 1); |
|
$$.axes.subx.style('opacity', isHidden ? 0 : 1); |
|
transitions.axisX.call($$.xAxis); |
|
transitions.axisY.call($$.yAxis); |
|
transitions.axisY2.call($$.y2Axis); |
|
transitions.axisSubX.call($$.subXAxis); |
|
}; |
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export {Axis}; |
|
export default Axis; |