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tejaser/.block

Last active May 15, 2017 07:00
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line chart in d3v4
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.block
license: mit
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README.md
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index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
svg { width: 100%; height: 100%;}
</style>
</head>
<body>
<svg> </svg>
<script>
var width = 800;
var height = 300 ;
var margin = {top: 20, bottom:20, left: 20, right: 20};
var dataset = [
{date: new Date(2007, 3, 24), value: 3.24},
{date: new Date(2007, 3, 25), value: 85.35},
{date: new Date(2007, 3, 26), value: 78.84},
{date: new Date(2007, 3, 27), value: 99.92},
{date: new Date(2007, 3, 30), value: 29.80},
{date: new Date(2007, 4, 1), value: 69.47},
];
//scales
var xExtent = d3.extent(dataset, d => d.date);
var xScale = d3.scaleTime()
.domain(xExtent).range([0, width - margin.right]);
var xAxis = d3.axisBottom().scale(xScale);
var yMax = d3.max(dataset, d => d.value);
var yScale = d3.scaleLinear()
.domain([0, yMax]).range([height, 0]);
var yAxis = d3.axisLeft().scale(yScale);
var svg = d3.select('svg').append('g')
.attr('transform', 'translate(40,20)');
var line = d3.line()
.x(d => xScale(d.date))
.y(d => yScale(d.value));
svg.selectAll('path')
.data([dataset]).enter().append('path')
.attr('d', line)
.attr('fill', 'none')
.attr('stroke', 'blue');
// axis
svg.append('g')
.attr('class', 'xAxis')
.call(xAxis)
.attr('transform', 'translate('+[0, height] +')');
svg.append('g')
.attr('class', 'yAxis')
.call(yAxis);
</script>
</body>
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