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@Thanaporn-sk
Forked from d3byex/index.html
Created August 10, 2016 06:58
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D3byEX 6.4: Bubble Plot
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="D3byEX 6.4" />
<meta charset="utf-8">
</head>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
var url = "https://gist.githubusercontent.com/d3byex/30231953acaa9433a46f/raw/6c7eb1c562de92bdf8d0cd99c6912048161c187e/fert_pop_exp.csv";
d3.csv(url, function (error, rawData) {
var data = rawData.map(function (d) {
return {
CountryCode: d.CountryCode,
CountryName: d.CountryName,
LifeExp: +d.LifeExp,
FertRate: +d.FertRate,
Population: +d.Population,
Region: d.Region
}
});
var minBubbleSize = 5, maxBubbleSize = 50;
var margin = {
left: maxBubbleSize, top: maxBubbleSize,
bottom: maxBubbleSize, right: maxBubbleSize
};
var axisPadding = 10;
var graphWidth = 500, graphHeight = 400;
var totalWidth = graphWidth + margin.left + margin.right;
var totalHeight = graphHeight + margin.top + margin.bottom;
var lifeExpectancy = data.map(function (d) { return d.LifeExp; });
var fertilityRate = data.map(function (d) { return d.FertRate; });
var population = data.map(function (d) { return d.Population; });
var regions = data.map(function (d) { return d.Region; });
var xScale = d3.scale.linear()
.domain([d3.min(lifeExpectancy), d3.max(lifeExpectancy)])
.range([0, graphWidth]);
var yScale = d3.scale.linear()
.domain([d3.max(fertilityRate), 0])
.range([0, graphHeight]);
var popDomain = [d3.min(population), d3.max(population)];
var popScale = d3.scale.linear()
.domain(popDomain)
.range([minBubbleSize, maxBubbleSize]);
var uniqueRegions = d3.set(regions).values();
var regionColorMap = d3.scale.ordinal()
.domain(uniqueRegions)
.range(d3.scale.category10().range());
var svg = d3.select("body").append('svg')
.attr('width', totalWidth)
.attr('height', totalHeight);
var yAxis = d3.svg.axis().scale(yScale).orient('left');
var yAxisNodes = svg.append('g')
.attr('transform', 'translate(' + (margin.left - axisPadding) + ',' + margin.top + ')')
.call(yAxis);
styleAxisNodes(yAxisNodes);
var xAxis = d3.svg.axis().scale(xScale).orient('bottom');
var xAxisNodes = svg.append('g')
.attr('transform', 'translate(' + margin.left + ',' + (totalHeight - margin.bottom + axisPadding) + ')')
.call(xAxis);
styleAxisNodes(xAxisNodes);
svg.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
.selectAll('circle')
.data(data)
.enter()
.append('circle')
.each(function (d) {
d3.select(this).attr({
cx: xScale(d.LifeExp),
cy: yScale(d.FertRate),
r: popScale(d.Population),
fill: regionColorMap(d.Region),
stroke: regionColorMap(d.Region),
'fill-opacity': 0.5
});
});
});
function styleAxisNodes(axisNodes) {
axisNodes.selectAll('.domain')
.attr({
fill: 'none',
'stroke-width': 1,
stroke: 'black'
});
axisNodes.selectAll('.tick line')
.attr({
fill: 'none',
'stroke-width': 1,
stroke: 'black'
});
}
</script>
</body>
</html>
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