Created
June 22, 2014 03:14
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
path { | |
stroke: #000; | |
fill-opacity: .8; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<script> | |
var width = 960, | |
height = 500; | |
// Hard-code some csv data. | |
var csv = | |
[ | |
{value: 10, series: "one"}, | |
{value: 20, series: "one"}, | |
{value: 90, series: "one"}, | |
{value: 30, series: "one"}, | |
{value: 90, series: "one"}, | |
{value: 50, series: "one"}, | |
{value: 10, series: "one"}, | |
{value: 40, series: "one"}, | |
{value: 10, series: "one"}, | |
{value: 30, series: "one"}, | |
{value: 50, series: "one"}, | |
{value: 20, series: "one"}, | |
{value: 30, series: "one"}, | |
{value: 40, series: "two"}, | |
{value: 30, series: "two"}, | |
{value: 10, series: "two"}, | |
{value: 20, series: "two"}, | |
{value: 30, series: "two"}, | |
{value: 50, series: "two"}, | |
{value: 30, series: "two"}, | |
{value: 90, series: "two"}, | |
{value: 30, series: "two"}, | |
{value: 20, series: "two"}, | |
{value: 60, series: "two"}, | |
{value: 80, series: "two"}, | |
{value: 75, series: "two"}, | |
] | |
// Set headers for csv. | |
var valueHeader = "value"; | |
var seriesHeader = "series"; | |
var uniqueSeries = ["one", "two"]; | |
var m = uniqueSeries.length; // number of series | |
// Restructue csv to become an array of arrays, separated by series. | |
var dataObject = {}; | |
uniqueSeries.forEach(function(series){ | |
dataObject[series] = []; | |
}) | |
csv.forEach(function(row){ | |
dataObject[row[seriesHeader]].push(row[valueHeader]); | |
}) | |
var data = d3.values(dataObject); | |
var n = data[0].length; // number of values assuming each series has equal # of values. | |
var x = d3.scale.linear() | |
.domain([0, n - 1]) | |
.range([0, width]); | |
var y = d3.scale.ordinal() | |
.domain(d3.range(m)) | |
.rangePoints([0, height], 1); | |
var z = d3.scale.linear() | |
.domain(d3.extent(csv, function(d){ return d.value; })) | |
.range([0, height / (2*m)]); | |
var color = d3.scale.ordinal() | |
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56"]); | |
var area = d3.svg.area() | |
.interpolate("basis") | |
.x(function(d, i) { return x(i); }) | |
.y0(function(d) { return -z(d); }) | |
.y1(function(d) { return z(d); }); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width) | |
.attr("height", height); | |
svg.selectAll("path") | |
.data(data) | |
.enter().append("path") | |
.attr("transform", function(d, i) { return "translate(0," + y(i) + ")"; }) | |
.style("fill", function(d, i) { return color(i); }) | |
.attr("d", area); | |
</script> |
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