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January 4, 2016 14:09
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Training stream graph
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<!DOCTYPE html> | |
<html> | |
<head> | |
<style> | |
.axis line { | |
fill: none; | |
stroke: black; | |
shape-rendering: crispEdges; | |
stroke-width: 1.1; | |
opacity: .2 | |
} | |
.x.axis path { | |
opacity: 0 | |
} | |
.y.axis path { | |
opacity: 0 | |
} | |
.x.axis text { | |
opacity: 0 | |
} | |
.y.axis text { | |
font-family: Georgia; | |
font-size: 14px; | |
opacity: .7 | |
} | |
</style> | |
</head> | |
<body> | |
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
<script> | |
var width = 800, | |
height = 500; | |
var svg = d3.select('body').append('svg'); | |
var x = d3.time.scale().range([0, width]), | |
y = d3.scale.linear().range([height-10, 0]), | |
z = d3.scale.category10() //ordinal().range(colorbrewer['Blues'][6]); | |
var format = d3.time.format('%m/%d/%y'); | |
function prepareData(data) { | |
data.forEach(function (d) { | |
d.date = format.parse(d.date); | |
d.value = +d.value; | |
}); | |
var nest = d3.nest() | |
.key(function (d) { return d.key }); | |
var stack = d3.layout.stack().offset('silhouette') | |
.values(function (d) { return d.values }) | |
.x(function (d) { return d.date }) | |
.y(function (d) { return d.value }); | |
return stack(nest.entries(data)); | |
} | |
d3.csv('//nemetz.devg.ru/d3/stream.csv', function (data) { | |
var layers = prepareData(data); | |
x.domain(d3.extent(data, function (d) { return d.date })); | |
y.domain([0, d3.max(data, function (d) { return d.y0 + d.y })]); | |
var area = d3.svg.area() | |
.interpolate('monotone') | |
.x(function (d) { return x(d.date) }) | |
.y0(function (d) { return y(d.y0) }) | |
.y1(function (d) { return y(d.y0 + d.y) }); | |
svg.selectAll('.layer') | |
.data(layers) | |
.enter() | |
.append('path') | |
.attr('class', 'layer') | |
.attr('d', function (d) { return area(d.values) }) | |
.attr('stroke', 'white') | |
.attr('fill', function (d, i) { return z(i) }) | |
.attr('opacity', .75); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient('top') | |
.tickSize(20) | |
.ticks(100); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient('left') | |
.tickSize(20) | |
.ticks(10); | |
svg.append('g') | |
.attr('class', 'x axis') | |
.attr('transform', 'translate(60, 260)') | |
.call(xAxis); | |
svg.append('g') | |
.attr('class', 'y axis') | |
.attr('transform', 'translate(50, 0)') | |
.call(yAxis); | |
}); | |
</script> | |
</body> | |
</html> |
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