mirror of https://github.com/masayuki0812/c3.git
Roman Charugin
9 years ago
13 changed files with 734 additions and 28 deletions
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<html> |
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<head> |
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<link rel="stylesheet" type="text/css" href="c3.css"> |
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</head> |
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<body> |
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<div id="chart"></div> |
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<script src="http://d3js.org/d3.v3.js" charset="utf-8"></script> |
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<script src="c3.js"></script> |
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<script> |
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var chart = c3.generate({ |
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bindto: '#chart', |
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data: { |
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x: 'date', |
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xFormat : '%Y%m%d', |
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columns: [ |
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['date', '20130101', '20130102', '20130103', '20130104', '20130105', '20130106', '20130107', '20130108', '20130109'], |
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['min', 10, 10, 30, 10, 55, 10, 55, 30, 10,], |
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['start', 30, 30, 30, 55, 55, 55, 55, 30, 80], |
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['end', 80, 80, 80, 55, 55, 55, 55, 80, 30], |
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['max', 110, 80, 110, 110, 55, 55, 110, 80, 110] |
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], |
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type: 'candle-stick' |
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}, |
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candlestick: { |
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data: { |
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min: 'min', |
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max: 'max', |
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start: 'start', |
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end: 'end' |
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} |
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}, |
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axis: { |
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x: { |
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type: 'timeseries', |
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tick: { |
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format: '%Y-%m-%d' |
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} |
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} |
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} |
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}); |
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</script> |
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</body> |
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</html> |
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// Candle stick chart initialization
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c3_chart_internal_fn.initCandleStick = function() { |
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var $$ = this; |
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$$.main.select('.' + CLASS.chart).append("g") |
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.attr('class', CLASS.chartCandleSticks); |
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}; |
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// Convert candlestick data
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c3_chart_internal_fn.convertTargetsForCandleStick = function (targets) { |
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var $$ = this, |
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config = $$.config, |
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minValues = (targets.filter(function (t) { return t.id === config.candlestick_data_min; })[0] || {}).values, |
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maxValues = (targets.filter(function (t) { return t.id === config.candlestick_data_max; })[0] || {}).values, |
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startValues = (targets.filter(function (t) { return t.id === config.candlestick_data_start; })[0] || {}).values, |
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endValues = (targets.filter(function (t) { return t.id === config.candlestick_data_end; })[0] || {}).values; |
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if (!minValues) { |
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throw new Error('No min values found at ' + config.candlestick_data_min + ' data property!'); |
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} |
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if (!maxValues) { |
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throw new Error('No max values found at ' + config.candlestick_data_max + ' data property!'); |
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} |
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if (!startValues) { |
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throw new Error('No start values found at ' + config.candlestick_data_start + ' data property!'); |
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} |
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if (!endValues) { |
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throw new Error('No end values found at ' + config.candlestick_data_end + ' data property!'); |
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} |
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var dataNum = Math.max(minValues.length, maxValues.length, startValues.length, endValues.length); |
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if (minValues.length !== dataNum) { |
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throw new Error('Not enough min values! Required ' + dataNum + ' values'); |
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} |
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if (maxValues.length !== dataNum) { |
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throw new Error('Not enough max values! Required ' + dataNum + ' values'); |
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} |
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if (startValues.length !== dataNum) { |
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throw new Error('Not enough start values! Required ' + dataNum + ' values'); |
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} |
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if (endValues.length !== dataNum) { |
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throw new Error('Not enough end values! Required ' + dataNum + ' values'); |
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} |
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// Saving data to internal var
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var candleStickValues = minValues.map(function(min, index) { |
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return { |
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id: 'cs-data', |
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index: index, |
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value: min.value, |
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csValue: { |
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min: min.value, |
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max: maxValues[index].value, |
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start: startValues[index].value, |
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end: endValues[index].value |
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}, |
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x: min.x |
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}; |
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}); |
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$$.config.data_types['cs-data'] = 'candle-stick'; |
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$$.candleStickValues = candleStickValues; |
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return $$.candleStickValues; |
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}; |
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// Updating candle stick chart containers
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c3_chart_internal_fn.updateTargetsForCandleStick = function (targets) { |
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var $$ = this, |
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mainCandleStickUpdate, |
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mainCandleStickEnter, |
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classChartCandleStick = $$.classChartCandleStick.bind($$), |
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classFocus = $$.classFocus.bind($$), |
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classCandleStick = $$.classCandleStick.bind($$), |
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classCandleSticks = $$.classCandleSticks.bind($$); |
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var candleStickValues = $$.convertTargetsForCandleStick(targets); |
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mainCandleStickUpdate = $$.main.select('.' + CLASS.chartCandleSticks).selectAll('.' + CLASS.chartCandleStick) |
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.data(candleStickValues.length > 0 ? [{id: 'cs-data', values: candleStickValues}] : null) |
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.attr('class', function (d) { return classCandleStick(d) + classFocus(d); }); |
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mainCandleStickEnter = mainCandleStickUpdate.enter().append('g') |
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.attr('class', classChartCandleStick) |
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.style('opacity', 0) |
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.style('pointer-events', 'none'); |
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// Candlestick for data
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mainCandleStickEnter.append('g') |
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.attr('class', classCandleSticks); |
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}; |
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// Updating one candle stick
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c3_chart_internal_fn.updateCandleStick = function (durationForExit) { |
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var $$ = this, |
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candleStickData = $$.candleStickData.bind($$), |
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classCandleStick = $$.classCandleStick.bind($$), |
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classCandleStickShadowUpper = $$.classCandleStickShadowUpper.bind($$), |
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classCandleStickShadowLower = $$.classCandleStickShadowLower.bind($$); |
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$$.mainCandleStick = $$.main.selectAll('.' + CLASS.candleSticks) |
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.selectAll('.' + CLASS.candleStick) |
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.data(candleStickData); |
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$$.mainCandleStick.enter().append('path') |
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.attr('class', classCandleStick) |
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.style('fill', function(d) { |
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return !!d.csValue && d.csValue.start < d.csValue.end ? 'green' : !!d.csValue && d.csValue.start > d.csValue.end ? 'red' : 'gray'; |
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}); |
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$$.mainCandleStick.exit().transition().duration(durationForExit) |
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.style('opacity', 0) |
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.remove(); |
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$$.mainCandleStickShadowsUpper = $$.main.selectAll('.' + CLASS.candleSticks) |
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.selectAll('.' + CLASS.candleStickShadowUpper) |
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.data(candleStickData); |
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$$.mainCandleStickShadowsUpper.enter() |
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.append('path') |
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.attr('class', classCandleStickShadowUpper); |
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$$.mainCandleStickShadowsUpper.exit().transition().duration(durationForExit) |
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.style('opacity', 0) |
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.remove(); |
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$$.mainCandleStickShadowsLower = $$.main.selectAll('.' + CLASS.candleSticks) |
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.selectAll('.' + CLASS.candleStickShadowLower) |
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.data(candleStickData); |
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$$.mainCandleStickShadowsLower.enter() |
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.append('path') |
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.attr('class', classCandleStickShadowLower); |
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$$.mainCandleStickShadowsLower.exit().transition().duration(durationForExit) |
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.style('opacity', 0) |
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.remove(); |
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}; |
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c3_chart_internal_fn.redrawCandleStick = function (drawCandleStick, withTransition) { |
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var $$ = this; |
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return [ |
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(withTransition ? this.mainCandleStick.transition(Math.random().toString()) : this.mainCandleStick) |
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.attr('d', drawCandleStick) |
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.style('opacity', 1), |
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(withTransition ? this.mainCandleStickShadowsUpper.transition(Math.random().toString()) : this.mainCandleStickShadowsUpper) |
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.attr('d', $$.generateDrawCandleStickUpperShadow()) |
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.style('opacity', 1), |
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(withTransition ? this.mainCandleStickShadowsLower.transition(Math.random().toString()) : this.mainCandleStickShadowsLower) |
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.attr('d', $$.generateDrawCandleStickLowerShadow()) |
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.style('opacity', 1) |
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]; |
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}; |
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c3_chart_internal_fn.getCandleStickW = function (axis) { |
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var $$ = this, config = $$.config, |
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w = typeof config.candlestick_width === 'number' ? config.candlestick_width : axis.tickInterval() * config.candlestick_width_ratio; |
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return config.candlestick_width_max && w > config.candlestick_width_max ? config.candlestick_width_max : w; |
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}; |
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c3_chart_internal_fn.getCandleStick = function (i, id) { |
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var $$ = this; |
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return (id ? $$.main.selectAll('.' + CLASS.candleSticks + $$.getTargetSelectorSuffix(id)) : $$.main) |
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.selectAll('.' + CLASS.candleSticks + (isValue(i) ? '-' + i : '')); |
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}; |
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c3_chart_internal_fn.expandCandleStick = function (i, id, reset) { |
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var $$ = this; |
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if (reset) { $$.unexpandCandleStick(); } |
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$$.getCandleStick(i, id).classed(CLASS.EXPANDED, true); |
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}; |
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c3_chart_internal_fn.unexpandCandleStick = function (i) { |
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var $$ = this; |
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$$.getCandleStick(i).classed(CLASS.EXPANDED, false); |
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}; |
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c3_chart_internal_fn.generateDrawCandleStick = function (candleStickIndices) { |
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var $$ = this, |
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getPoints = $$.generateGetCandleStickPoints(candleStickIndices); |
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return function (d, i) { |
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// 8 points describing candlestick chart
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var points = getPoints(d, i); |
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if (points[0][1] - points[2][1] < 1) { |
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points[2][1] -= 1; |
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points[3][1] -= 1; |
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} |
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var path = |
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'M ' + points[0][0] + ',' + points[0][1] + ' ' + |
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'L' + points[1][0] + ',' + points[1][1] + ' ' + |
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'L' + points[2][0] + ',' + points[2][1] + ' ' + |
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'L' + points[3][0] + ',' + points[3][1] + ' ' + |
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'z'; |
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return path; |
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}; |
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}; |
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c3_chart_internal_fn.generateDrawCandleStickUpperShadow = function (candleStickIndices) { |
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var $$ = this, |
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getPoints = $$.generateGetCandleStickPoints(candleStickIndices); |
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return function (d, i) { |
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// 8 points describing candlestick chart
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var points = getPoints(d, i); |
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var path = |
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'M ' + points[4][0] + ',' + points[4][1] + ' ' + |
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'L' + points[5][0] + ',' + points[5][1]; |
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return path; |
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}; |
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}; |
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c3_chart_internal_fn.generateDrawCandleStickLowerShadow = function (candleStickIndices) { |
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var $$ = this, |
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getPoints = $$.generateGetCandleStickPoints(candleStickIndices); |
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return function (d, i) { |
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// 8 points describing candlestick chart
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var points = getPoints(d, i); |
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var path = |
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'M ' + points[6][0] + ',' + points[6][1] + ' ' + |
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'L' + points[7][0] + ',' + points[7][1]; |
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return path; |
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}; |
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}; |
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c3_chart_internal_fn.generateGetCandleStickPoints = function (candleStickIndices, isSub) { |
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var $$ = this, |
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axis = isSub ? $$.subXAxis : $$.xAxis, |
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candleStickW = $$.getCandleStickW(axis), |
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candleStickX = $$.getShapeX(candleStickW, 1, {data: 0}, false), |
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candleStickY = $$.getShapeY(false), |
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candleStickValues = $$.candleStickValues; |
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return function (d, i) { |
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var value = candleStickValues[i]; |
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var inc = value.csValue.start < value.csValue.end; |
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var min = value.csValue.min, |
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max = value.csValue.max, |
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end = inc ? value.csValue.end : value.csValue.start, |
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start = inc ? value.csValue.start : value.csValue.end; |
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var posX = candleStickX({id: 'cs-data', x: value.x}), |
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posYMax = candleStickY({id: 'cs-data', x: value.x, value: max}), |
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posYMin = candleStickY({id: 'cs-data', x: value.x, value: min}), |
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posYStart = candleStickY({id: 'cs-data', x: value.x, value: start}), |
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posYEnd = candleStickY({id: 'cs-data', x: value.x, value: end}); |
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// 8 points that make a candle stick
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return [ |
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// Body
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[posX, posYEnd], |
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[posX + candleStickW, posYEnd], |
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[posX + candleStickW, posYStart], |
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[posX, posYStart], |
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// Upper shadow
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[posX + candleStickW / 2, posYMax], |
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[posX + candleStickW / 2, posYEnd], |
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// Lower shadow
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[posX + candleStickW / 2, posYStart], |
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[posX + candleStickW / 2, posYMin] |
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]; |
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}; |
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}; |
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c3_chart_internal_fn.isWithinCandleStick = function (that) { |
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var mouse = this.d3.mouse(that), |
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box = that.getBoundingClientRect(), |
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seg0 = that.pathSegList.getItem(0), seg1 = that.pathSegList.getItem(1), |
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x = Math.min(seg0.x, seg1.x), y = Math.min(seg0.y, seg1.y), |
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w = box.width, h = box.height, offset = 2, |
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sx = x - offset, ex = x + w + offset, sy = y + h + offset, ey = y - offset; |
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return sx < mouse[0] && mouse[0] < ex && ey < mouse[1] && mouse[1] < sy; |
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}; |
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