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harukihill/.block

Last active May 17, 2017 19:35
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.block
license: mit
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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; }
</style>
</head>
<body>
<script>
var margin = {top: 20, bottom: 20, left: 20, right: 20};
var h = 500;
var w = 500;
var dataset = [
[5,20],
[3,37],
[2,41],
[1,48],
[18,2],
[12,20],
[23,40],
[9,32],
[23, 5],
[12, 12],
[14, 5],
[17,18],
[21, 3],
[15, 16],
[13, 19],
[4,26],
[16, 2]
];
var svg = d3.select("body")
.append("svg")
.attr("height", h)
.attr("width", w);
var xScale = d3.scaleLinear()
.domain([0, d3.max(dataset,function(d){return d[0];})])
.range([margin.left,w - margin.right]);
var yScale = d3.scaleLinear()
.domain([0, d3.max(dataset, function(d){return d[1];})])
.range([h - margin.bottom, margin.top]);
var colorScale = d3.scaleLinear()
.domain([0, dataset.length])
.range([0, 255]);
var colorScaleRev = d3.scaleLinear()
.domain([0, dataset.length])
.range([255, 0]);
var circles = svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle");
circles.attr("cx", function(d){
return xScale(d[0]);
})
.attr("cy", function(d){
return yScale(d[1]);
})
.attr("r", function(d,i){
return i*2;
})
.attr("fill", function(d,i){
return d3.rgb(colorScaleRev(i),colorScale(i),colorScale(i));
});
</script>
</body>
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