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453 lines
15 KiB
JavaScript
453 lines
15 KiB
JavaScript
nv.models.multiChart = function() {
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"use strict";
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//============================================================
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// Public Variables with Default Settings
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//------------------------------------------------------------
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var margin = {top: 30, right: 20, bottom: 50, left: 60},
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color = d3.scale.category20().range(),
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width = null,
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height = null,
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showLegend = true,
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tooltips = true,
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tooltip = function(key, x, y, e, graph) {
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return '<h3>' + key + '</h3>' +
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'<p>' + y + ' at ' + x + '</p>'
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},
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x,
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y,
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yDomain1,
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yDomain2
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; //can be accessed via chart.lines.[x/y]Scale()
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//============================================================
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// Private Variables
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//------------------------------------------------------------
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var x = d3.scale.linear(),
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yScale1 = d3.scale.linear(),
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yScale2 = d3.scale.linear(),
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lines1 = nv.models.line().yScale(yScale1),
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lines2 = nv.models.line().yScale(yScale2),
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bars1 = nv.models.multiBar().stacked(false).yScale(yScale1),
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bars2 = nv.models.multiBar().stacked(false).yScale(yScale2),
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stack1 = nv.models.stackedArea().yScale(yScale1),
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stack2 = nv.models.stackedArea().yScale(yScale2),
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xAxis = nv.models.axis().scale(x).orient('bottom').tickPadding(5),
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yAxis1 = nv.models.axis().scale(yScale1).orient('left'),
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yAxis2 = nv.models.axis().scale(yScale2).orient('right'),
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legend = nv.models.legend().height(30),
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dispatch = d3.dispatch('tooltipShow', 'tooltipHide');
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var showTooltip = function(e, offsetElement) {
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var left = e.pos[0] + ( offsetElement.offsetLeft || 0 ),
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top = e.pos[1] + ( offsetElement.offsetTop || 0),
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x = xAxis.tickFormat()(lines1.x()(e.point, e.pointIndex)),
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y = ((e.series.yAxis == 2) ? yAxis2 : yAxis1).tickFormat()(lines1.y()(e.point, e.pointIndex)),
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content = tooltip(e.series.key, x, y, e, chart);
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nv.tooltip.show([left, top], content, undefined, undefined, offsetElement.offsetParent);
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};
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function chart(selection) {
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selection.each(function(data) {
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var container = d3.select(this),
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that = this;
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chart.update = function() { container.transition().call(chart); };
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chart.container = this;
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var availableWidth = (width || parseInt(container.style('width')) || 960)
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- margin.left - margin.right,
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availableHeight = (height || parseInt(container.style('height')) || 400)
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- margin.top - margin.bottom;
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var dataLines1 = data.filter(function(d) {return !d.disabled && d.type == 'line' && d.yAxis == 1})
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var dataLines2 = data.filter(function(d) {return !d.disabled && d.type == 'line' && d.yAxis == 2})
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var dataBars1 = data.filter(function(d) {return !d.disabled && d.type == 'bar' && d.yAxis == 1})
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var dataBars2 = data.filter(function(d) {return !d.disabled && d.type == 'bar' && d.yAxis == 2})
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var dataStack1 = data.filter(function(d) {return !d.disabled && d.type == 'area' && d.yAxis == 1})
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var dataStack2 = data.filter(function(d) {return !d.disabled && d.type == 'area' && d.yAxis == 2})
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var series1 = data.filter(function(d) {return !d.disabled && d.yAxis == 1})
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.map(function(d) {
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return d.values.map(function(d,i) {
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return { x: d.x, y: d.y }
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})
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})
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var series2 = data.filter(function(d) {return !d.disabled && d.yAxis == 2})
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.map(function(d) {
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return d.values.map(function(d,i) {
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return { x: d.x, y: d.y }
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})
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})
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x .domain(d3.extent(d3.merge(series1.concat(series2)), function(d) { return d.x } ))
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.range([0, availableWidth]);
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var wrap = container.selectAll('g.wrap.multiChart').data([data]);
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var gEnter = wrap.enter().append('g').attr('class', 'wrap nvd3 multiChart').append('g');
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gEnter.append('g').attr('class', 'x axis');
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gEnter.append('g').attr('class', 'y1 axis');
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gEnter.append('g').attr('class', 'y2 axis');
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gEnter.append('g').attr('class', 'lines1Wrap');
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gEnter.append('g').attr('class', 'lines2Wrap');
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gEnter.append('g').attr('class', 'bars1Wrap');
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gEnter.append('g').attr('class', 'bars2Wrap');
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gEnter.append('g').attr('class', 'stack1Wrap');
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gEnter.append('g').attr('class', 'stack2Wrap');
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gEnter.append('g').attr('class', 'legendWrap');
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var g = wrap.select('g');
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if (showLegend) {
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legend.width( availableWidth / 2 );
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g.select('.legendWrap')
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.datum(data.map(function(series) {
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series.originalKey = series.originalKey === undefined ? series.key : series.originalKey;
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series.key = series.originalKey + (series.yAxis == 1 ? '' : ' (right axis)');
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return series;
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}))
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.call(legend);
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if ( margin.top != legend.height()) {
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margin.top = legend.height();
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availableHeight = (height || parseInt(container.style('height')) || 400)
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- margin.top - margin.bottom;
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}
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g.select('.legendWrap')
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.attr('transform', 'translate(' + ( availableWidth / 2 ) + ',' + (-margin.top) +')');
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}
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lines1
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.width(availableWidth)
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.height(availableHeight)
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.interpolate("monotone")
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.color(data.map(function(d,i) {
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return d.color || color[i % color.length];
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}).filter(function(d,i) { return !data[i].disabled && data[i].yAxis == 1 && data[i].type == 'line'}));
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lines2
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.width(availableWidth)
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.height(availableHeight)
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.interpolate("monotone")
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.color(data.map(function(d,i) {
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return d.color || color[i % color.length];
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}).filter(function(d,i) { return !data[i].disabled && data[i].yAxis == 2 && data[i].type == 'line'}));
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bars1
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.width(availableWidth)
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.height(availableHeight)
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.color(data.map(function(d,i) {
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return d.color || color[i % color.length];
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}).filter(function(d,i) { return !data[i].disabled && data[i].yAxis == 1 && data[i].type == 'bar'}));
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bars2
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.width(availableWidth)
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.height(availableHeight)
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.color(data.map(function(d,i) {
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return d.color || color[i % color.length];
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}).filter(function(d,i) { return !data[i].disabled && data[i].yAxis == 2 && data[i].type == 'bar'}));
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stack1
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.width(availableWidth)
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.height(availableHeight)
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.color(data.map(function(d,i) {
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return d.color || color[i % color.length];
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}).filter(function(d,i) { return !data[i].disabled && data[i].yAxis == 1 && data[i].type == 'area'}));
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stack2
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.width(availableWidth)
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.height(availableHeight)
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.color(data.map(function(d,i) {
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return d.color || color[i % color.length];
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}).filter(function(d,i) { return !data[i].disabled && data[i].yAxis == 2 && data[i].type == 'area'}));
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g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
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var lines1Wrap = g.select('.lines1Wrap')
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.datum(dataLines1)
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var bars1Wrap = g.select('.bars1Wrap')
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.datum(dataBars1)
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var stack1Wrap = g.select('.stack1Wrap')
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.datum(dataStack1)
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var lines2Wrap = g.select('.lines2Wrap')
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.datum(dataLines2)
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var bars2Wrap = g.select('.bars2Wrap')
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.datum(dataBars2)
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var stack2Wrap = g.select('.stack2Wrap')
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.datum(dataStack2)
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var extraValue1 = dataStack1.length ? dataStack1.map(function(a){return a.values}).reduce(function(a,b){
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return a.map(function(aVal,i){return {x: aVal.x, y: aVal.y + b[i].y}})
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}).concat([{x:0, y:0}]) : []
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var extraValue2 = dataStack2.length ? dataStack2.map(function(a){return a.values}).reduce(function(a,b){
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return a.map(function(aVal,i){return {x: aVal.x, y: aVal.y + b[i].y}})
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}).concat([{x:0, y:0}]) : []
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yScale1 .domain(yDomain1 || d3.extent(d3.merge(series1).concat(extraValue1), function(d) { return d.y } ))
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.range([0, availableHeight])
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yScale2 .domain(yDomain2 || d3.extent(d3.merge(series2).concat(extraValue2), function(d) { return d.y } ))
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.range([0, availableHeight])
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lines1.yDomain(yScale1.domain())
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bars1.yDomain(yScale1.domain())
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stack1.yDomain(yScale1.domain())
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lines2.yDomain(yScale2.domain())
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bars2.yDomain(yScale2.domain())
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stack2.yDomain(yScale2.domain())
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if(dataStack1.length){d3.transition(stack1Wrap).call(stack1);}
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if(dataStack2.length){d3.transition(stack2Wrap).call(stack2);}
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if(dataBars1.length){d3.transition(bars1Wrap).call(bars1);}
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if(dataBars2.length){d3.transition(bars2Wrap).call(bars2);}
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if(dataLines1.length){d3.transition(lines1Wrap).call(lines1);}
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if(dataLines2.length){d3.transition(lines2Wrap).call(lines2);}
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xAxis
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.ticks( availableWidth / 100 )
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.tickSize(-availableHeight, 0);
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g.select('.x.axis')
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.attr('transform', 'translate(0,' + availableHeight + ')');
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d3.transition(g.select('.x.axis'))
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.call(xAxis);
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yAxis1
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.ticks( availableHeight / 36 )
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.tickSize( -availableWidth, 0);
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d3.transition(g.select('.y1.axis'))
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.call(yAxis1);
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yAxis2
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.ticks( availableHeight / 36 )
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.tickSize( -availableWidth, 0);
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d3.transition(g.select('.y2.axis'))
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.call(yAxis2);
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g.select('.y2.axis')
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.style('opacity', series2.length ? 1 : 0)
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.attr('transform', 'translate(' + x.range()[1] + ',0)');
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legend.dispatch.on('stateChange', function(newState) {
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chart.update();
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});
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dispatch.on('tooltipShow', function(e) {
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if (tooltips) showTooltip(e, that.parentNode);
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});
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});
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return chart;
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}
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//============================================================
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// Event Handling/Dispatching (out of chart's scope)
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//------------------------------------------------------------
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lines1.dispatch.on('elementMouseover.tooltip', function(e) {
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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lines1.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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lines2.dispatch.on('elementMouseover.tooltip', function(e) {
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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lines2.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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bars1.dispatch.on('elementMouseover.tooltip', function(e) {
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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bars1.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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bars2.dispatch.on('elementMouseover.tooltip', function(e) {
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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bars2.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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stack1.dispatch.on('tooltipShow', function(e) {
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//disable tooltips when value ~= 0
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//// TODO: consider removing points from voronoi that have 0 value instead of this hack
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if (!Math.round(stack1.y()(e.point) * 100)) { // 100 will not be good for very small numbers... will have to think about making this valu dynamic, based on data range
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setTimeout(function() { d3.selectAll('.point.hover').classed('hover', false) }, 0);
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return false;
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}
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top],
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dispatch.tooltipShow(e);
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});
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stack1.dispatch.on('tooltipHide', function(e) {
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dispatch.tooltipHide(e);
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});
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stack2.dispatch.on('tooltipShow', function(e) {
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//disable tooltips when value ~= 0
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//// TODO: consider removing points from voronoi that have 0 value instead of this hack
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if (!Math.round(stack2.y()(e.point) * 100)) { // 100 will not be good for very small numbers... will have to think about making this valu dynamic, based on data range
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setTimeout(function() { d3.selectAll('.point.hover').classed('hover', false) }, 0);
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return false;
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}
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top],
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dispatch.tooltipShow(e);
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});
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stack2.dispatch.on('tooltipHide', function(e) {
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dispatch.tooltipHide(e);
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});
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lines1.dispatch.on('elementMouseover.tooltip', function(e) {
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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lines1.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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lines2.dispatch.on('elementMouseover.tooltip', function(e) {
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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lines2.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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dispatch.on('tooltipHide', function() {
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if (tooltips) nv.tooltip.cleanup();
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});
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//============================================================
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// Global getters and setters
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//------------------------------------------------------------
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chart.dispatch = dispatch;
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chart.lines1 = lines1;
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chart.lines2 = lines2;
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chart.bars1 = bars1;
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chart.bars2 = bars2;
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chart.stack1 = stack1;
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chart.stack2 = stack2;
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chart.xAxis = xAxis;
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chart.yAxis1 = yAxis1;
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chart.yAxis2 = yAxis2;
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chart.options = nv.utils.optionsFunc.bind(chart);
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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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lines1.x(_);
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bars1.x(_);
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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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lines1.y(_);
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bars1.y(_);
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return chart;
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};
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chart.yDomain1 = function(_) {
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if (!arguments.length) return yDomain1;
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yDomain1 = _;
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return chart;
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};
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chart.yDomain2 = function(_) {
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if (!arguments.length) return yDomain2;
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yDomain2 = _;
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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.color = function(_) {
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if (!arguments.length) return color;
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color = _;
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legend.color(_);
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return chart;
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};
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chart.showLegend = function(_) {
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if (!arguments.length) return showLegend;
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showLegend = _;
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return chart;
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};
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chart.tooltips = function(_) {
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if (!arguments.length) return tooltips;
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tooltips = _;
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return chart;
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};
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chart.tooltipContent = function(_) {
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if (!arguments.length) return tooltip;
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tooltip = _;
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return chart;
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};
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return chart;
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}
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