Split up the multibar to a discrete bar and multi bar implementations
Bob Monteverde
12 years ago
parent
64e7aee246
commit
28f64a5272
@ -0,0 +1,171 @@
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<!DOCTYPE html>
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<meta charset="utf-8">
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<link href="../src/d3.css" rel="stylesheet" type="text/css">
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<style>
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body {
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overflow-y:scroll;
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}
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text {
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font: 12px sans-serif;
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}
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#chart1 {
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height: 500px;
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margin: 10px;
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min-width: 100px;
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min-height: 100px;
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/*
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Minimum height and width is a good idea to prevent negative SVG dimensions...
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For example width should be =< margin.left + margin.right + 1,
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of course 1 pixel for the entire chart would not be very useful, BUT should not have errors
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*/
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}
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</style>
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<body>
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<div id="chart1">
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</div>
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<script src="../lib/d3.v2.js"></script>
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<script src="../nv.d3.js"></script>
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<script src="../src/tooltip.js"></script>
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<script src="../src/models/axis.js"></script>
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<script src="../src/models/discreteBar.js"></script>
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<script src="../src/models/discreteBarWithAxes.js"></script>
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<script src="stream_layers.js"></script>
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<script>
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historicalBarChart = [
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{
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key: "Cumulative Return",
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values: [
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{
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"label" : "CDS / Options" ,
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"value" : -29.765957771107
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} ,
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{
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"label" : "Cash" ,
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"value" : 0
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} ,
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{
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"label" : "Corporate Bonds" ,
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"value" : 32.807804682612
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} ,
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{
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"label" : "Equity" ,
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"value" : 196.45946739256
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} ,
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{
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"label" : "Index Futures" ,
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"value" : 0.19434030906893
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} ,
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{
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"label" : "Options" ,
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"value" : -98.079782601442
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} ,
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{
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"label" : "Preferred" ,
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"value" : -13.925743130903
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} ,
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{
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"label" : "Not Available" ,
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"value" : -5.1387322875705
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}
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]
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}
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];
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var selector = '#chart1',
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chart = nv.models.discreteBarWithAxes()
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.color(d3.scale.category10().range())
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.x(function(d) { return d.label })
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.y(function(d) { return d.value }),
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data = historicalBarChart,
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xTickFormat = function(d) { return d },
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yTickFormat = d3.format(',.2f'),
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xAxisLabel = null,
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yAxisLabel = null,
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duration = 500;
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nv.addGraph({
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generate: function() {
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var container = d3.select(selector),
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width = function() { return parseInt(container.style('width')) },
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height = function() { return parseInt(container.style('height')) },
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svg = container.append('svg');
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chart
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.width(width)
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.height(height);
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chart.xAxis
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.tickFormat(xTickFormat);
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chart.yAxis
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.tickFormat(yTickFormat)
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.axisLabel(yAxisLabel);
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svg
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.attr('width', width())
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.attr('height', height())
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.datum(data)
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.transition().duration(duration).call(chart);
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return chart;
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},
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callback: function(chart) {
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var showTooltip = function(e) {
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var offsetElement = document.getElementById(selector.substr(1)),
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left = e.pos[0] + offsetElement.offsetLeft,
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top = e.pos[1] + offsetElement.offsetTop,
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formatY = chart.yAxis.tickFormat(), //Assumes using same format as axis, can customize to show higher precision, etc.
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formatX = chart.xAxis.tickFormat();
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// uses the chart's getX and getY, you may customize if x position is not the same as the value you want
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// ex. daily data without weekends, x is the index, while you want the date
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var content = '<h3>' + formatX(chart.x()(e.point)) + '</h3>' +
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'<p>' +
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formatY(chart.y()(e.point)) +
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'</p>';
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nv.tooltip.show([left, top], content, e.value < 0 ? 'n' : 's');
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};
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chart.dispatch.on('tooltipShow', showTooltip);
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chart.dispatch.on('tooltipHide', nv.tooltip.cleanup);
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window.onresize= function() {
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// now that width and height are functions, should be automatic..of course you can always override them
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d3.select('#chart1 svg')
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.attr('width', chart.width()()) //need to set SVG dimensions, chart is not aware of the SVG component
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.attr('height', chart.height()())
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.transition().duration(duration)
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.call(chart);
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/*
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d3.select('#chart1 svg')
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.attr('width', chart.width()()) //need to set SVG dimensions, chart is not aware of the SVG component
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.attr('height', chart.height()())
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.call(chart);
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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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File diff suppressed because one or more lines are too long
@ -0,0 +1,310 @@
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nv.models.discreteBar = function() {
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var margin = {top: 0, right: 0, bottom: 0, left: 0},
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width = 960,
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height = 500,
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id = Math.floor(Math.random() * 10000), //Create semi-unique ID in case user doesn't select one
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getX = function(d) { return d.x },
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getY = function(d) { return d.y },
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forceY = [0], // 0 is forced by default.. this makes sense for the majority of bar graphs... user can always do chart.forceY([]) to remove
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clipEdge = true,
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stacked = false,
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color = d3.scale.category20().range(),
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xDomain, yDomain,
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x0, y0;
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//var x = d3.scale.linear(),
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var x = d3.scale.ordinal(),
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y = d3.scale.linear(),
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dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout');
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//TODO: remove all the code taht deals with multiple series
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function chart(selection) {
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selection.each(function(data) {
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var availableWidth = width - margin.left - margin.right,
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availableHeight = height - margin.top - margin.bottom;
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//store old scales if they exist
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x0 = x0 || x;
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y0 = y0 || y;
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if (stacked) {
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//var stackedData = d3.layout.stack()
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data = d3.layout.stack()
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.offset('zero')
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.values(function(d){ return d.values })
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.y(getY)
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(data);
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}
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//add series index to each data point for reference
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data = data.map(function(series, i) {
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series.values = series.values.map(function(point) {
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point.series = i;
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return point;
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});
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return series;
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});
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var seriesData = (xDomain && yDomain) ? [] : // if we know xDomain and yDomain, no need to calculate
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data.map(function(d) {
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return d.values.map(function(d,i) {
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return { x: getX(d,i), y: getY(d,i), y0: d.y0 }
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})
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});
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x .domain(d3.merge(seriesData).map(function(d) { return d.x }))
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.rangeBands([0, availableWidth], .1);
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y .domain(yDomain || d3.extent(d3.merge(seriesData).map(function(d) { return d.y + (stacked ? d.y0 : 0) }).concat(forceY)))
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.range([availableHeight, 0]);
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var wrap = d3.select(this).selectAll('g.wrap.discretebar').data([data]);
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var wrapEnter = wrap.enter().append('g').attr('class', 'wrap nvd3 discretebar');
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var defsEnter = wrapEnter.append('defs');
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var gEnter = wrapEnter.append('g');
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gEnter.append('g').attr('class', 'groups');
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var g = wrap.select('g')
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wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
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defsEnter.append('clipPath')
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.attr('id', 'edge-clip-' + id)
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.append('rect');
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wrap.select('#edge-clip-' + id + ' rect')
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.attr('width', availableWidth)
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.attr('height', availableHeight);
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g .attr('clip-path', clipEdge ? 'url(#edge-clip-' + id + ')' : '');
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//TODO: by definiteion, the discrete bar should not have multiple groups, will modify/remove later
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var groups = wrap.select('.groups').selectAll('.group')
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.data(function(d) { return d }, function(d) { return d.key });
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groups.enter().append('g')
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.style('stroke-opacity', 1e-6)
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.style('fill-opacity', 1e-6)
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d3.transition(groups.exit())
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.style('stroke-opacity', 1e-6)
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.style('fill-opacity', 1e-6)
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.remove();
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groups
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.attr('class', function(d,i) { return 'group series-' + i })
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.classed('hover', function(d) { return d.hover })
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//.style('fill', function(d,i){ return color[i % 10] })
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//.style('stroke', function(d,i){ return color[i % 10] });
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d3.transition(groups)
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.style('stroke-opacity', 1)
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.style('fill-opacity', .75);
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var bars = groups.selectAll('rect.bar')
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.data(function(d) { return d.values });
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bars.exit().remove();
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var barsEnter = bars.enter().append('rect')
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.attr('class', function(d,i) { return getY(d,i) < 0 ? 'bar negative' : 'bar positive'})
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//.attr('fill', function(d,i) { return color[0]; })
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.attr('x', function(d,i,j) {
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return stacked ? 0 : (j * x.rangeBand() / data.length )
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})
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//.attr('y', function(d,i) { return y(Math.max(0, getY(d,i))) })
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//.attr('height', function(d,i) { return Math.abs(y(getY(d,i)) - y(0)) })
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.attr('y', function(d) { return y0(stacked ? d.y0 : 0) })
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.attr('height', 0)
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.attr('width', x.rangeBand() / (stacked ? 1 : data.length) )
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.style('fill', function(d,i){ return d.color || color[i % 10] }) //this is a 'hack' to allow multiple colors in a single series... will need to rethink this methodology
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.style('stroke', function(d,i){ return d.color || color[i % 10] })
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.on('mouseover', function(d,i) { //TODO: figure out why j works above, but not here
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d3.select(this).classed('hover', true);
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dispatch.elementMouseover({
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value: getY(d,i),
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point: d,
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series: data[d.series],
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pos: [x(getX(d,i)) + (x.rangeBand() * (stacked ? data.length / 2 : d.series + .5) / data.length), y(getY(d,i) + (stacked ? d.y0 : 0))], // TODO: Figure out why the value appears to be shifted
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pointIndex: i,
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seriesIndex: d.series,
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e: d3.event
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});
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})
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.on('mouseout', function(d,i) {
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d3.select(this).classed('hover', false);
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dispatch.elementMouseout({
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value: getY(d,i),
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point: d,
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series: data[d.series],
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pointIndex: i,
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seriesIndex: d.series,
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e: d3.event
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});
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})
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.on('click', function(d,i) {
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dispatch.elementClick({
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value: getY(d,i),
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point: d,
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series: data[d.series],
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pos: [x(getX(d,i)) + (x.rangeBand() * (stacked ? data.length / 2 : d.series + .5) / data.length), y(getY(d,i) + (stacked ? d.y0 : 0))], // TODO: Figure out why the value appears to be shifted
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pointIndex: i,
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seriesIndex: d.series,
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e: d3.event
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});
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d3.event.stopPropagation();
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})
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.on('dblclick', function(d,i) {
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dispatch.elementDblClick({
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value: getY(d,i),
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point: d,
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series: data[d.series],
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pos: [x(getX(d,i)) + (x.rangeBand() * (stacked ? data.length / 2 : d.series + .5) / data.length), y(getY(d,i) + (stacked ? d.y0 : 0))], // TODO: Figure out why the value appears to be shifted
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pointIndex: i,
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seriesIndex: d.series,
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e: d3.event
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});
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d3.event.stopPropagation();
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});
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bars
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.attr('class', function(d,i) { return getY(d,i) < 0 ? 'bar negative' : 'bar positive'})
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.attr('transform', function(d,i) { return 'translate(' + x(getX(d,i)) + ',0)'; })
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if (stacked)
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d3.transition(bars)
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.delay(function(d,i) { return i * 1000 / data[0].values.length })
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.attr('y', function(d,i) {
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return y(getY(d,i) + (stacked ? d.y0 : 0));
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})
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.attr('height', function(d,i) {
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return Math.abs(y(d.y + (stacked ? d.y0 : 0)) - y((stacked ? d.y0 : 0)))
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})
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.each('end', function() {
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d3.transition(d3.select(this))
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.attr('x', function(d,i) {
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return stacked ? 0 : (d.series * x.rangeBand() / data.length )
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})
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.attr('width', x.rangeBand() / (stacked ? 1 : data.length) );
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})
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else
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d3.transition(bars)
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.delay(function(d,i) { return i * 1200 / data[0].values.length })
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.attr('x', function(d,i) {
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return d.series * x.rangeBand() / data.length
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})
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.attr('width', x.rangeBand() / data.length)
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.each('end', function() {
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d3.transition(d3.select(this))
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.attr('y', function(d,i) {
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return getY(d,i) < 0 ?
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y(0) :
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y(getY(d,i))
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})
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.attr('height', function(d,i) {
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return Math.abs(y(getY(d,i)) - y(0))
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});
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})
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//TODO: decide if this makes sense to add into all the models for ease of updating (updating without needing the selection)
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chart.update = function() {
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selection.transition().call(chart);
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}
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//store old scales for use in transitions on update, to animate from old to new positions, and sizes
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x0 = x.copy();
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y0 = y.copy();
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});
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return chart;
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}
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chart.dispatch = dispatch;
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chart.x = function(_) {
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if (!arguments.length) return getX;
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getX = _;
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return chart;
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};
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chart.y = function(_) {
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if (!arguments.length) return getY;
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getY = _;
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return chart;
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};
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chart.margin = function(_) {
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if (!arguments.length) return margin;
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margin = _;
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return chart;
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};
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chart.width = function(_) {
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if (!arguments.length) return width;
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width = _;
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return chart;
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};
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chart.height = function(_) {
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if (!arguments.length) return height;
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height = _;
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return chart;
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};
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chart.xDomain = function(_) {
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if (!arguments.length) return xDomain;
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xDomain = _;
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return chart;
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};
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chart.yDomain = function(_) {
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if (!arguments.length) return yDomain;
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yDomain = _;
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return chart;
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};
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chart.forceY = function(_) {
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if (!arguments.length) return forceY;
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forceY = _;
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return chart;
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};
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chart.stacked = function(_) {
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if (!arguments.length) return stacked;
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stacked = _;
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return chart;
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};
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chart.clipEdge = function(_) {
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if (!arguments.length) return clipEdge;
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clipEdge = _;
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return chart;
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};
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chart.color = function(_) {
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if (!arguments.length) return color;
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color = _;
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return chart;
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};
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chart.id = function(_) {
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if (!arguments.length) return id;
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id = _;
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return chart;
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};
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return chart;
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}
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@ -0,0 +1,172 @@
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nv.models.discreteBarWithAxes = function() {
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var margin = {top: 30, right: 20, bottom: 50, left: 60},
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width = function() { return 960 },
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height = function() { return 500 },
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color = d3.scale.category20().range();
|
||||
|
||||
//var x = d3.scale.linear(),
|
||||
var x = d3.scale.ordinal(),
|
||||
y = d3.scale.linear(),
|
||||
xAxis = nv.models.axis().scale(x).orient('bottom').highlightZero(false),
|
||||
yAxis = nv.models.axis().scale(y).orient('left'),
|
||||
discretebar = nv.models.discreteBar().stacked(false),
|
||||
dispatch = d3.dispatch('tooltipShow', 'tooltipHide');
|
||||
|
||||
//TODO: let user select default
|
||||
var controlsData = [
|
||||
{ key: 'Grouped' },
|
||||
{ key: 'Stacked', disabled: true }
|
||||
];
|
||||
|
||||
function chart(selection) {
|
||||
selection.each(function(data) {
|
||||
var availableWidth = width() - margin.left - margin.right,
|
||||
availableHeight = height() - margin.top - margin.bottom,
|
||||
seriesData;
|
||||
|
||||
if (discretebar.stacked()) {
|
||||
seriesData = data.filter(function(d) { return !d.disabled })
|
||||
.reduce(function(prev, curr, index) { //sum up all the y's
|
||||
curr.values.forEach(function(d,i) {
|
||||
if (!index) prev[i] = {x: discretebar.x()(d,i), y:0};
|
||||
prev[i].y += discretebar.y()(d,i);
|
||||
});
|
||||
return prev;
|
||||
}, []);
|
||||
} else {
|
||||
seriesData = data.filter(function(d) { return !d.disabled })
|
||||
.map(function(d) {
|
||||
return d.values.map(function(d,i) {
|
||||
return { x: discretebar.x()(d,i), y: discretebar.y()(d,i) }
|
||||
})
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
//x .domain(d3.extent(d3.merge(seriesData).map(function(d) { return d.x }).concat(discretebar.forceX) ))
|
||||
//.range([0, availableWidth]);
|
||||
|
||||
x .domain(d3.merge(seriesData).map(function(d) { return d.x }))
|
||||
.rangeBands([0, availableWidth], .1);
|
||||
//.rangeRoundBands([0, availableWidth], .1);
|
||||
|
||||
y .domain(d3.extent(d3.merge(seriesData).map(function(d) { return d.y }).concat(discretebar.forceY) ))
|
||||
.range([availableHeight, 0]);
|
||||
|
||||
discretebar
|
||||
.width(availableWidth)
|
||||
.height(availableHeight)
|
||||
//.xDomain(x.domain())
|
||||
//.yDomain(y.domain())
|
||||
//.color(data.map(function(d,i) {
|
||||
//return d.color || color[i % 20];
|
||||
//}).filter(function(d,i) { return !data[i].disabled }))
|
||||
|
||||
|
||||
|
||||
var wrap = d3.select(this).selectAll('g.wrap.discreteBarWithAxes').data([data]);
|
||||
var gEnter = wrap.enter().append('g').attr('class', 'wrap nvd3 discreteBarWithAxes').append('g');
|
||||
|
||||
gEnter.append('g').attr('class', 'x axis');
|
||||
gEnter.append('g').attr('class', 'y axis');
|
||||
gEnter.append('g').attr('class', 'linesWrap');
|
||||
|
||||
|
||||
|
||||
var g = wrap.select('g');
|
||||
|
||||
|
||||
g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
|
||||
|
||||
var linesWrap = g.select('.linesWrap')
|
||||
.datum(data.filter(function(d) { return !d.disabled }))
|
||||
|
||||
|
||||
d3.transition(linesWrap).call(discretebar);
|
||||
|
||||
|
||||
xAxis
|
||||
.scale(x)
|
||||
//.domain(x.domain())
|
||||
//.range(x.range())
|
||||
.ticks( availableWidth / 100 )
|
||||
.tickSize(-availableHeight, 0);
|
||||
|
||||
g.select('.x.axis')
|
||||
.attr('transform', 'translate(0,' + y.range()[0] + ')');
|
||||
d3.transition(g.select('.x.axis'))
|
||||
.call(xAxis);
|
||||
|
||||
var xTicks = g.select('.x.axis').selectAll('g');
|
||||
|
||||
xTicks
|
||||
.selectAll('line, text')
|
||||
.style('opacity', 1)
|
||||
|
||||
xTicks.filter(function(d,i) {
|
||||
return i % Math.ceil(data[0].values.length / (availableWidth / 100)) !== 0;
|
||||
})
|
||||
.selectAll('line, text')
|
||||
.style('opacity', 0)
|
||||
|
||||
yAxis
|
||||
.domain(y.domain())
|
||||
.range(y.range())
|
||||
.ticks( availableHeight / 36 )
|
||||
.tickSize( -availableWidth, 0);
|
||||
|
||||
d3.transition(g.select('.y.axis'))
|
||||
.call(yAxis);
|
||||
|
||||
|
||||
discretebar.dispatch.on('elementMouseover.tooltip', function(e) {
|
||||
e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
|
||||
dispatch.tooltipShow(e);
|
||||
});
|
||||
|
||||
discretebar.dispatch.on('elementMouseout.tooltip', function(e) {
|
||||
dispatch.tooltipHide(e);
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
return chart;
|
||||
}
|
||||
|
||||
|
||||
chart.dispatch = dispatch;
|
||||
chart.xAxis = xAxis;
|
||||
chart.yAxis = yAxis;
|
||||
|
||||
d3.rebind(chart, discretebar, 'x', 'y', 'xDomain', 'yDomain', 'forceX', 'forceY', 'clipEdge', 'id');
|
||||
|
||||
|
||||
chart.margin = function(_) {
|
||||
if (!arguments.length) return margin;
|
||||
margin = _;
|
||||
return chart;
|
||||
};
|
||||
|
||||
chart.width = function(_) {
|
||||
if (!arguments.length) return width;
|
||||
width = d3.functor(_);
|
||||
return chart;
|
||||
};
|
||||
|
||||
chart.height = function(_) {
|
||||
if (!arguments.length) return height;
|
||||
height = d3.functor(_);
|
||||
return chart;
|
||||
};
|
||||
|
||||
chart.color = function(_) {
|
||||
if (!arguments.length) return color;
|
||||
color = _;
|
||||
discretebar.color(_);
|
||||
return chart;
|
||||
};
|
||||
|
||||
|
||||
return chart;
|
||||
}
|
||||
Loading…
Reference in New Issue