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D3: Stacked Bar Chart (Smartphone OS Marketshare)
Raw
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Knight Center D3: Stack Bar Chart</title>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<style type="text/css">
@import url(http://fonts.googleapis.com/css?family=Oswald:700,400);
@import url(http://fonts.googleapis.com/css?family=Open+Sans);
body {
font-family: oswald, arial, sans-serif;
color: #333;
}
p {
font-family: open sans, arial, sans-serif;
}
a:link {
color: #3A96B7;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
a:visited {
color: #3A96B7;
}
a:active {
color: steelBlue;
}
.container {
width: 900px;
margin-left: auto;
margin-right: auto;
margin-top: 50px;
margin-bottom: 50px;
padding: 20px 50px;
background: #fff;
box-shadow: 0 0 5px #999999;
}
.source {
font-family: oswald, arial, sans-serif;
font-weight: bold;
font-size: .75em;
}
svg {
font-size: 10px;
shape-rendering: crispEdges;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
}
path.domain {
stroke: none;
}
.y .tick line {
stroke: #ddd;
}
</style>
</head>
<body>
<div class="container">
<h1>Worldwide Smartphone OS Market Share, 2012-2015 Q2</h1>
<p>Quarter 2 smartphone data for 2015 has now been released. Measuring <a href="http://www.investopedia.com/terms/y/year-over-year.asp">year-over-year</a> performance, the trend of Android phone dominance of the marketplace continues.</p>
<p><span class="source">Source: <a href="https://www.idc.com/prodserv/smartphone-os-market-share.jsp">ICT, August 2015</a></span></p>
</div>
<script type="text/javascript">
// Setup margins using Bostock's method
var margin = {top: 25, right: 160, bottom: 25, left: 30};
var width = 900 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// Setup svg
var svg = d3.select(".container")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var data = [
{ year: "2012", android: "69.3", ios: "16.6", windows_phone: "3.1", blackberry_os: "4.9", other: "6.1" },
{ year: "2013", android: "79.8", ios: "12.9", windows_phone: "3.4", blackberry_os: "2.8", other: "1.2" },
{ year: "2014", android: "84.8", ios: "11.6", windows_phone: "2.5", blackberry_os: "0.5", other: "0.7" },
{ year: "2015", android: "82.8", ios: "13.9", windows_phone: "2.6", blackberry_os: "0.3", other: "0.4" },
];
var parse = d3.time.format("%Y").parse;
// Transpose the data into layers by operating system
var dataset = d3.layout.stack()(["android", "ios", "windows_phone", "blackberry_os", "other"].map(function(os) {
return data.map(function(d) {
return {x: parse(d.year), y: +d[os]};
});
}));
// Set x & y scales and colors
var x = d3.scale.ordinal()
.domain(dataset[0].map(function(d) { return d.x; }))
.rangeRoundBands([10, width-10], 0.02);
var y = d3.scale.linear()
.domain([0, 100])
.range([height, 0]);
var colors = ['#7fc97f','#beaed4','#fdc086','#ffff99','#386cb0'];
// Define and draw axes
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.tickSize(-width, 0, 0)
.tickFormat( function(d) { return d + '%' } );
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.tickFormat(d3.time.format("%Y"));
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// Create groups for each series, rects for each segment
var groups = svg.selectAll("g.percent")
.data(dataset)
.enter().append("g")
.attr("class", "percent")
.style("fill", function(d, i) { return colors[i]; });
var rect = groups.selectAll("rect")
.data(function(d) { return d; })
.enter()
.append("rect")
.attr("x", function(d) { return x(d.x); })
.attr("y", function(d) { return y(d.y0 + d.y); })
.attr("height", function(d) { return y(d.y0) - y(d.y0 + d.y); })
.attr("width", x.rangeBand())
.on("mouseover", function() { tooltip.style("display", null); })
.on("mouseout", function() { tooltip.style("display", "none"); })
.on("mousemove", function(d) {
var xPosition = d3.mouse(this)[0] - 15;
var yPosition = d3.mouse(this)[1] - 25;
tooltip.attr("transform", "translate(" + xPosition + "," + yPosition + ")");
tooltip.select("text").text(d.y+'%');
});
// Create legend
var legend = svg.selectAll(".legend")
.data(colors)
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(30," + i * 19 + ")"; });
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", function(d, i) {return colors.slice().reverse()[i];});
legend.append("text")
.attr("x", width + 5)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "start")
.text(function(d, i) {
switch (i) {
case 0: return "Other";
case 1: return "Blackberry OS";
case 2: return "Windows Phone";
case 3: return "IOS";
case 4: return "Android";
}
});
// Create tooltip, initial display is hidden
var tooltip = svg.append("g")
.attr("class", "tooltip")
.style("display", "none");
tooltip.append("rect")
.attr("width", 40)
.attr("height", 20)
.attr("fill", "white")
.style("opacity", 0.5);
tooltip.append("text")
.attr("x", 20)
.attr("dy", "1.2em")
.style("text-anchor", "middle")
.attr("font-size", "12px")
.attr("font-weight", "bold");
</script>
</body>
</html>
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