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140 lines
3.3 KiB
HTML
140 lines
3.3 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<link href="../src/d3.css" rel="stylesheet" type="text/css">
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<style>
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body {
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overflow-y:scroll;
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}
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text {
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font: 12px sans-serif;
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}
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#chart {
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margin: 10px;
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height: 500px;
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}
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</style>
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<body>
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<div id="chart">
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<svg></svg>
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</div>
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<script src="../lib/d3.v2.js"></script>
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<script src="../nv.d3.js"></script>
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<script src="../src/tooltip.js"></script>
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<script src="../src/models/xaxis.js"></script>
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<script src="../src/models/yaxis.js"></script>
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<script src="../src/models/legend.js"></script>
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<script src="../src/models/line.js"></script>
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<script src="../src/models/stackedArea.js"></script>
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<script src="../src/models/stackedAreaWithLegend.js"></script>
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<script>
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var n = 4, // number of layers
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m = 120; // number of samples per layer
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//color = d3.interpolateRgb("#aad", "#556");
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//format data to our liking, add keys
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var data = stream_layers(n,m).map(function(data, i) {
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return {
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key: 'Stream' + i,
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values: data
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};
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});
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var width = function() { return parseInt(d3.select('#chart').style('width')) },
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height = function() { return parseInt(d3.select('#chart').style('height')) };
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var chart = nv.models.stackedAreaWithLegend()
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.width(width)
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.height(height)
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//.y(function(d) { return d.ytest }) //not ready yet for custom accessor, almost there
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var svg = d3.select('#chart svg')
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.attr('width', width())
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.attr('height', height())
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.datum(data)
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svg.transition().duration(500).call(chart);
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chart.dispatch.on('tooltipShow', function(e) {
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var offsetElement = document.getElementById("chart"),
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left = e.pos[0] + offsetElement.offsetLeft,
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top = e.pos[1] + offsetElement.offsetTop,
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formatterY = chart.stacked.offset() == 'expand' ? d3.format(',.2%') : d3.format(',.2f'), //TODO: stacked format should be set by caller
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formatterX = function(d) { return d };
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var content = '<h3>' + e.series.key + '</h3>' +
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'<p>' +
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formatterY(chart.y()(e.point)) + ' on ' + formatterX(chart.x()(e.point)) +
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'</p>';
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nv.tooltip.show([left, top], content);
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});
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chart.dispatch.on('tooltipHide', function(e) {
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nv.tooltip.cleanup();
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});
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window.onresize = function() {
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d3.select('#chart svg')
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.attr('width', width())
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.attr('height', height())
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.call(chart);
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};
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/* Inspired by Lee Byron's test data generator. */
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function stream_layers(n, m, o) {
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if (arguments.length < 3) o = 0;
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function bump(a) {
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var x = 1 / (.1 + Math.random()),
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y = 2 * Math.random() - .5,
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z = 10 / (.1 + Math.random());
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for (var i = 0; i < m; i++) {
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var w = (i / m - y) * z;
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a[i] += x * Math.exp(-w * w);
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}
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}
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return d3.range(n).map(function() {
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var a = [], i;
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for (i = 0; i < m; i++) a[i] = o + o * Math.random();
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for (i = 0; i < 5; i++) bump(a);
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return a.map(stream_index);
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});
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}
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/* Another layer generator using gamma distributions. */
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function stream_waves(n, m) {
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return d3.range(n).map(function(i) {
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return d3.range(m).map(function(j) {
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var x = 20 * j / m - i / 3;
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return 2 * x * Math.exp(-.5 * x);
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}).map(stream_index);
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});
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}
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function stream_index(d, i) {
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//return {x: i, ytest: Math.max(0, d)}; //Minor error with custom y getter/setter and stacked, need to fix
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return {x: i, y: Math.max(0, d)};
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}
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</script>
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