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Simple Bar Chart
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| var bar = function() { | |
| var margin = {top: 0, right: 0, bottom: 0, left: 0}, | |
| width = 500, | |
| height = 200; | |
| function chart(selection) { | |
| selection.each(function(data) { | |
| var svg = d3.select(this).append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + ", " + margin.top + ")"); | |
| var barWidth = width / data.length; | |
| var y = d3.scale.linear() | |
| .domain([0, d3.max(data)]) | |
| .range([height, 0]); | |
| var bars = svg.selectAll(".bar") | |
| .data(data).enter() | |
| .append("g") | |
| .attr("class", "bar"); | |
| bars.append("rect") | |
| .attr("x", function(d, i) { return i*barWidth; }) | |
| .attr("y", function(d, i) { return y(d); }) | |
| .attr("width", barWidth) | |
| .attr("height", function(d, i) { return height - y(d); }); | |
| }); | |
| } | |
| chart.margin = function(_) { | |
| if (!arguments.length) return undefined; | |
| margin = _; | |
| return chart; | |
| } | |
| chart.width = function(_) { | |
| if (!arguments.length) return undefined; | |
| width = _; | |
| return chart; | |
| } | |
| chart.height = function(_) { | |
| if (!arguments.length) return undefined; | |
| height = _; | |
| return chart; | |
| } | |
| return chart; | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Simple Bar Chart</title> | |
| <style> | |
| g.bar { | |
| stroke: #000; | |
| stroke-width: 1; | |
| fill: #00FF96; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script> | |
| <script src="./bar.js" charset="utf-8"></script> | |
| <script> | |
| var data = [50, 10, 20, 30, 40, 50, 40, 30, 20, 15]; | |
| var chart = bar() | |
| .width(700) | |
| .height(50) | |
| .margin({top: 10, left: 5, right: 5, bottom: 10}); | |
| d3.select("body") | |
| .datum(data) | |
| .call(chart); | |
| </script> | |
| </body> | |
| </html> |
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