See this more recent, improved version.
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .axis text { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var n = 20, // number of samples | |
| m = 4; // number of series | |
| var data = d3.range(m).map(function() { return d3.range(n).map(Math.random); }); | |
| var margin = {top: 20, right: 30, bottom: 30, left: 40}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var y = d3.scale.linear() | |
| .domain([0, 1]) | |
| .range([height, 0]); | |
| var x0 = d3.scale.ordinal() | |
| .domain(d3.range(n)) | |
| .rangeBands([0, width], .2); | |
| var x1 = d3.scale.ordinal() | |
| .domain(d3.range(m)) | |
| .rangeBands([0, x0.rangeBand()]); | |
| var z = d3.scale.category10(); | |
| var xAxis = d3.svg.axis() | |
| .scale(x0) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("svg:g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g").selectAll("g") | |
| .data(data) | |
| .enter().append("g") | |
| .style("fill", function(d, i) { return z(i); }) | |
| .attr("transform", function(d, i) { return "translate(" + x1(i) + ",0)"; }) | |
| .selectAll("rect") | |
| .data(function(d) { return d; }) | |
| .enter().append("rect") | |
| .attr("width", x1.rangeBand()) | |
| .attr("height", y) | |
| .attr("x", function(d, i) { return x0(i); }) | |
| .attr("y", function(d) { return height - y(d); }); | |
| </script> |
djjr
commented
May 10, 2013
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Is there a logic that eludes me on why "y" is used for horizontal and "x" for vertical in this snippet?