<!DOCTYPE html>
<meta charset="utf-8">
<link href="../src/nv.d3.css" rel="stylesheet" type="text/css">
<style>
body {
overflow-y:scroll;
}
text {
font: 12px sans-serif;
}
</style>
<body>
<div id="chart">
<svg></svg>
</div>
<script src="../lib/d3.v3.js"></script>
<script src="../nv.d3.js"></script>
<script src="../src/utils.js"></script>
<script src="../src/tooltip.js"></script>
<script src="../src/models/stackedArea.js"></script>
<script>
//Format A
nv.addGraph({
generate: function() {
var n = 10, // number of layers
m = 200; // number of samples per layer
//color = d3.interpolateRgb("#aad", "#556");
var data = stream_layers(n,m).map(function(data, i) {
return {
key: 'Stream' + i,
values: data
};
});
var width = nv.utils.windowSize().width - 20,
height = nv.utils.windowSize().height - 20;
var chart = nv.models.stackedArea()
.width(width)
.height(height)
//.offset('wiggle')
//.order('default')
var svg = d3.select('#chart svg')
.attr('width', width)
.attr('height', height)
.datum(data)
svg.transition().duration(500).call(chart);
return chart;
},
callback: function(graph) {
graph.dispatch.on('tooltipShow', function(e) {
var offsetElement = document.getElementById("chart"),
left = e.pos[0] + offsetElement.offsetLeft,
top = e.pos[1] + offsetElement.offsetTop,
formatterY = d3.format(",.2%"),
formatterX = function(d) {
return d3.time.format('%x')(new Date(d))
};
var content = '<h3>' + e.series.key + '</h3>' +
'<p>' +
formatterY(graph.y()(e.point)) + ' at ' + formatterX(graph.x()(e.point)) +
'</p>';
nv.tooltip.show([left, top], content);
});
graph.dispatch.on('tooltipHide', function(e) {
nv.tooltip.cleanup();
});
window.onResize = function() {
var width = nv.utils.windowSize().width - 20,
height = nv.utils.windowSize().height - 20,
margin = graph.margin();
if (width < margin.left + margin.right + 20)
width = margin.left + margin.right + 20;
if (height < margin.top + margin.bottom + 20)
height = margin.top + margin.bottom + 20;
graph
.width(width)
.height(height);
d3.select('#chart svg')
.attr('width', width)
.attr('height', height)
.call(graph);
}
}
});
/* Inspired by Lee Byron's test data generator. */
function stream_layers(n, m, o) {
if (arguments.length < 3) o = 0;
function bump(a) {
var x = 1 / (.1 + Math.random()),
y = 2 * Math.random() - .5,
z = 10 / (.1 + Math.random());
for (var i = 0; i < m; i++) {
var w = (i / m - y) * z;
a[i] += x * Math.exp(-w * w);
}
}
return d3.range(n).map(function() {
var a = [], i;
for (i = 0; i < m; i++) a[i] = o + o * Math.random();
for (i = 0; i < 5; i++) bump(a);
return a.map(stream_index);
});
}
/* Another layer generator using gamma distributions. */
function stream_waves(n, m) {
return d3.range(n).map(function(i) {
return d3.range(m).map(function(j) {
var x = 20 * j / m - i / 3;
return 2 * x * Math.exp(-.5 * x);
}).map(stream_index);
});
}
function stream_index(d, i) {
return {x: i, y: Math.max(0, d)};
}
</script>