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November 12, 2013 14:16
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Dual-scaled-D3-Bar-Charts
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| year | money | number | |
|---|---|---|---|
| 2005 | 550 | 35 | |
| 2006 | 600 | 40 | |
| 2007 | 700 | 45 | |
| 2008 | 800 | 60 | |
| 2009 | 900 | 70 | |
| 2010 | 850 | 65 | |
| 2011 | 880 | 67 | |
| 2012 | 900 | 70 | |
| 2013 | 1000 | 75 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .y.axisRight text { | |
| fill: orange; | |
| } | |
| .y.axisLeft text { | |
| fill: steelblue; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .bar1 { | |
| fill: steelblue; | |
| } | |
| .bar2 { | |
| fill: orange; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var margin = {top: 80, right: 80, bottom: 80, left: 80}, | |
| width = 600 - margin.left - margin.right, | |
| height = 400 - margin.top - margin.bottom; | |
| var x = d3.scale.ordinal() | |
| .rangeRoundBands([0, width], .1); | |
| var y0 = d3.scale.linear().domain([300, 1100]).range([height, 0]), | |
| y1 = d3.scale.linear().domain([20, 80]).range([height, 0]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| // create left yAxis | |
| var yAxisLeft = d3.svg.axis().scale(y0).ticks(4).orient("left"); | |
| // create right yAxis | |
| var yAxisRight = d3.svg.axis().scale(y1).ticks(6).orient("right"); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("class", "graph") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.tsv("data.tsv", type, function(error, data) { | |
| x.domain(data.map(function(d) { return d.year; })); | |
| y0.domain([0, d3.max(data, function(d) { return d.money; })]); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "y axis axisLeft") | |
| .attr("transform", "translate(0,0)") | |
| .call(yAxisLeft) | |
| .append("text") | |
| .attr("y", 6) | |
| .attr("dy", "-2em") | |
| .style("text-anchor", "end") | |
| .style("text-anchor", "end") | |
| .text("Dollars"); | |
| svg.append("g") | |
| .attr("class", "y axis axisRight") | |
| .attr("transform", "translate(" + (width) + ",0)") | |
| .call(yAxisRight) | |
| .append("text") | |
| .attr("y", 6) | |
| .attr("dy", "-2em") | |
| .attr("dx", "2em") | |
| .style("text-anchor", "end") | |
| .text("#"); | |
| bars = svg.selectAll(".bar").data(data).enter(); | |
| bars.append("rect") | |
| .attr("class", "bar1") | |
| .attr("x", function(d) { return x(d.year); }) | |
| .attr("width", x.rangeBand()/2) | |
| .attr("y", function(d) { return y0(d.money); }) | |
| .attr("height", function(d,i,j) { return height - y0(d.money); }); | |
| bars.append("rect") | |
| .attr("class", "bar2") | |
| .attr("x", function(d) { return x(d.year) + x.rangeBand()/2; }) | |
| .attr("width", x.rangeBand() / 2) | |
| .attr("y", function(d) { return y1(d.number); }) | |
| .attr("height", function(d,i,j) { return height - y1(d.number); }); | |
| }); | |
| function type(d) { | |
| d.money = +d.money; | |
| return d; | |
| } | |
| </script> |
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Linke to GitHub repository
https://github.com/liufly/Dual-scaled-D3-Bar-Charts