<!DOCTYPE html>
< html lang = "en" >
< head >
< meta charset = "UTF-8" >
< meta name = "viewport" content="
width = device -width, initial-scale = 1 .0">
< script type = "text/javascript"
</ script >
</ script >
</ head >
< body >
< h1 style = "color:green" >GeeksforGeeks</ h1 >
< script >
// svg object is appended to the body.
var svg = d3.select("body")
.append("svg")
.attr("width", 530)
.attr("height", 480)
.append("g")
.attr("transform",
"translate(" + 40 + ", " + -80 + ")");
// read data
d3.csv("./data.csv", function(data)
{
var y = d3.scaleLinear()
.domain([2, 30])
.range([ 300, 100 ]);
var x = d3.scaleLinear()
.domain([2, 22])
.range([ 0, 200]);
svg.append("g")
.call(d3.axisLeft(y));
svg.append("g")
.attr("transform", "translate(0, " + 300 + ")")
.call(d3.axisBottom(x));
var density= d3.contourDensity()
.y(function(d) { return y(d.y); })
.bandwidth(15)
// Use of size() Function
.size([50, 350])
.x(function(d) { return x(d.x); })(data)
svg.selectAll("path")
.data(density)
.enter()
.append("path")
.attr("d", d3.geoPath())
.attr("fill", "none")
.attr("stroke", "green")
});
// Data for csv file
// x, y, group
// 9.45, 14.14, H
// 9.1, 14.14, H
// 9.9, 9.9, H
// 9.6, 14.5, H
// 9.1, 9.7, H
// 14.7, 9.5, H
// 7.9, 9.6, H
// 14.7, 9.7, H
// 9.45, 14.14, H
// 12.1, 9.14, H
// 7.5, 9, H
// 14.5, 14.5, H
// 9.45, 9.7, H
// 14.45, 9.6, H
// 9.5, 7.6, H
// 9, 9.45, H
// 14.7, 12, H
// 9.7, 9.7, H
// 9.6, 9, H
// 12, 9, H
// 9.45, 14.5, H
// 9.9, 14.6, H
// 12.7, 9.9, H
// 9, 12.14, H
// 9, 14.9, H
// 9.5, 9.7, H
// 9.7, 14.7, H
// 9.9, 14.5, H
// 14, 14.5, H
// 7.9, 9, H
// 9.9, 9.45, H
// 9, 14.14, H
// 14.7, 9.7, H
// 14.5, 9.9, H
</ script >
</ body >
</ html >
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