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bubbleChart.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script type="text/javascript" src="d3/d3.v3.js"></script>
<title>d3 Examples</title>
</head>
<body>
<header>
<div class="container">
<div class="row">
<div class="col-md-2">
<img src="resources/d3logo.png">
</div>
<div class="col-md-10">
<h1 class="logo">D3 Examples</h1>
<h4>Richard Dalton</h4>
<div class="btn-group btn-group-md" role="group" aria-label="...">
<a href="index.html" class="btn btn-default" role="button">Home</a>
<a href="svg.html" class="btn btn-default" role="button">SVG</a>
<a href="barChart.html" class="btn btn-default" role="button">Bar</a>
<a href="pieChart.html" class="btn btn-default" role="button">Pie</a>
<a href="bubbleChart.html" class="btn btn-default" role="button">Bubble</a>
<a href="force.html" class="btn btn-default" role="button">Force</a>
<a href="globe.html" class="btn btn-default" role="button">Globe</a>
<a href="https://d3js.org" class="btn btn-default" role="button">D3.js</a>
</div>
</div>
</div>
</div>
</header>
<div class="container">
<h3>Bubble Chart</h3>
<p>We can draw a bubble chart by using svg to render a circle of the appropriate size, and at the appropriate position for each datapoint.</p>
<p>In this example, each data point consists of 3 numbers which we can use to plot the x and y position and the radius of each circle</p>
<div class="col-md-6">
<div id="draw_here"></div>
</div>
<div class="col-md-6">
<pre>
var w = 500;
var h = 500;
var dataset = [
[5, 20, 5], [480, 90, 5], [250, 50, 10], [100, 33, 15], [330, 95, 5],
[410, 12, 10], [475, 44, 20], [25, 67, 15], [85, 21, 5], [220, 88, 10]
];
var colors = d3.scale.category10();
var scaleX = d3.scale.linear();
scaleX.domain([0, 500]);
scaleX.range([50, 480]);
var scaleY = d3.scale.linear();
scaleY.domain([0, 100]);
scaleY.range([450, 20]);
//Create SVG element
var svg = d3.select("#draw_here")
.append("svg")
.attr("width", w)
.attr("height", h);
svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle")
.attr("cx", function (d) {
return scaleX(d[0]);
})
.attr("cy", function (d) {
return scaleY(d[1]);
})
.attr("r", function (d) {
return d[2];
})
.attr("fill", function (d, i) {
return colors(i);
});
svg.selectAll("text")
.data(dataset)
.enter()
.append("text")
.text(function (d) {
return d[0] + "," + d[1] + "," + d[2];
})
.attr("x", function (d) {
return scaleX(d[0]);
})
.attr("y", function (d) {
return scaleY(d[1]) - d[2] - 5;
})
.attr("font-family", "sans-serif")
.attr("font-size", "11px")
.attr("text-anchor", "middle");
var xAxis = d3.svg.axis()
.scale(scaleX)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(scaleY)
.orient("left");
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + (h - 50) + ")")
.call(xAxis);
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(" + 50 + ", 0)")
.call(yAxis);
</pre>
</div>
</div>
<script type="text/javascript">
var w = 500;
var h = 500;
var dataset = [
[5, 20, 5], [480, 90, 5], [250, 50, 10], [100, 33, 15], [330, 95, 5],
[410, 12, 10], [475, 44, 20], [25, 67, 15], [85, 21, 5], [220, 88, 10]
];
var colors = d3.scale.category10();
var scaleX = d3.scale.linear();
scaleX.domain([0, 500]);
scaleX.range([50, 480]);
var scaleY = d3.scale.linear();
scaleY.domain([0, 100]);
scaleY.range([450, 20]);
//Create SVG element
var svg = d3.select("#draw_here")
.append("svg")
.attr("width", w)
.attr("height", h);
svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle")
.attr("cx", function (d) {
return scaleX(d[0]);
})
.attr("cy", function (d) {
return scaleY(d[1]);
})
.attr("r", function (d) {
return d[2];
})
.attr("fill", function (d, i) {
return colors(i);
});
svg.selectAll("text")
.data(dataset)
.enter()
.append("text")
.text(function (d) {
return d[0] + "," + d[1] + "," + d[2];
})
.attr("x", function (d) {
return scaleX(d[0]);
})
.attr("y", function (d) {
return scaleY(d[1]) - d[2] - 5;
})
.attr("font-family", "sans-serif")
.attr("font-size", "11px")
.attr("text-anchor", "middle");
var xAxis = d3.svg.axis()
.scale(scaleX)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(scaleY)
.orient("left");
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + (h - 50) + ")")
.call(xAxis);
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(" + 50 + ", 0)")
.call(yAxis);
</script>
</body>
</html>