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devgru/index.html

Last active January 4, 2016 12:29
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index.html
<!DOCTYPE html>
<body>
<script src='http://d3js.org/d3.v3.js'></script>
<script src='http://d3js.org/colorbrewer.v1.js'></script>
<script>
var format = d3.time.format('%m/%d/%y')
var width = 600
var height = 400
var x = d3.time.scale().range([0, width])
var y = d3.scale.linear().range([height - 10, 0])
var color = d3.scale.ordinal().range(colorbrewer['Blues'][6])
var area = d3.svg.area()
.x(function(d) { return x(d.date) })
.y0(function(d) { return y(d.y0) })
.y1(function(d) { return y(d.y0 + d.y) })
var svg = d3.select('body')
.append('svg')
.attr('width', width)
.attr('height', height)
function prepareData(data) {
var nest = d3.nest().key(function(d) { return d.key })
var stack = d3.layout.stack()
.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('http://nemetz.devg.ru/d3/stream.csv', function (d) {
d.date = format.parse(d.date)
d.value = Number(d.value)
return d
}, 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 })])
svg.selectAll('.layer')
.data(layers)
.enter().append('path')
.attr('class', 'layer')
.attr('d', function (d) { return area(d.values) })
.style('fill', function (d, i) { return color(i) })
})
</script>
</body>
</html>
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