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@jsscclr
Forked from caged/d3-server.js
Created Jul 6, 2016
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What would you like to do?
Directly render and serve d3 visualizations from a nodejs server.
// Start `node d3-server.js`
// Then visit http://localhost:1337/
//
var d3 = require('d3'),
http = require('http')
http.createServer(function (req, res) {
// Chrome automatically sends a requests for favicons
// Looks like https://code.google.com/p/chromium/issues/detail?id=39402 isn't
// fixed or this is a regression.
if(req.url.indexOf('favicon.ico') != -1) {
res.statusCode = 404
return
}
var pad = { t: 10, r: 10, b: 50, l: 40 },
width = 800 - pad.l - pad.r,
height = 500 - pad.t - pad.b,
samples = d3.range(10).map(d3.random.normal(10, 5)),
x = d3.scale.linear().domain([0, samples.length - 1]).range([0, width]),
y = d3.scale.linear().domain([0, d3.max(samples)]).range([height, 0]),
xAxis = d3.svg.axis().scale(x).orient('bottom').tickSize(height),
yAxis = d3.svg.axis().scale(y).orient('left')
var line = d3.svg.line()
.interpolate('basis')
.x(function(d, i) { return x(i) })
.y(y)
var vis = d3.select('body').html('').append('svg')
.attr('xmlns', 'http://www.w3.org/2000/svg')
.attr('xmlns:xlink', 'http://www.w3.org/1999/xlink')
.attr('width', width + pad.l + pad.r)
.attr('height', height + pad.t + pad.b)
.append('g')
.attr('transform', 'translate(' + pad.l + ',' + pad.t + ')')
vis.append('g')
.attr('class', 'x axis')
.call(xAxis)
vis.append('g')
.attr('class', 'y axis')
.call(yAxis)
vis.selectAll('.axis text')
.style('fill', '#888')
.style('font-family', 'Helvetica Neue')
.style('font-size', 11)
vis.selectAll('.axis line')
.style('stroke', '#eee')
.style('stroke-width', 1)
vis.selectAll('.domain')
.style('display', 'none')
vis.selectAll('path.samples')
.data([samples])
.enter().append('path')
.attr('class', 'samples')
.attr('d', line)
.style('fill', 'none')
.style('stroke', '#c00')
.style('stroke-width', 2)
res.writeHead(200, {'Content-Type': 'image/svg+xml'})
res.end(d3.select('body').node().innerHTML)
}).listen(1337, '127.0.0.1')
console.log('Server running at http://127.0.0.1:1337/');
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