Module 4

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Red List Working Bar Chart</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			
			body {
				background-color: white;
				font-family: Helvetica, Arial, sans-serif;
			}

span.filetype {
				color: grey;
				font-size: 8px;
			
			}
			
			h1 {
				font-size: 20px;
				margin: 0;
			}

p {
				font-size: 12px;
				margin: 10px 0 0 0;
				width: 600px;
			}

svg {
				background-color: white;
			}

rect:hover {
				fill: red;
			}
			
			.axis path,
			.axis line {
				fill: none;
				stroke: grey;
				shape-rendering: crispEdges;
			}
			
			.axis text {
				font-family: sans-serif;
				font-size: 10px;
			}

.y.axis path,
			.y.axis line {
				opacity: 0;
			}

</style>
	</head>
	<body>

<h1>Threatened Species by Country</h1>

<p>IUCN Redlist summary showing number of threatened species (Critically Endangered, Endangered and Vulnerable categories only) in each major group of organisms by country. Source: <a href="https://cmsdocs.s3.amazonaws.com/summarystats/2014_3_Summary_Stats_Page_Documents/2014_3_RL_Stats_Table_5.pdf">IUCN</a><span class="filetype"> [PDF]</span></p>
		<p>Countries are color-coded by continent.</p>
	
	
		<script type="text/javascript">

var w = 500;
			var h = 2000;
			var padding = [ 20, 0, 30, 250 ];  //Top, right, bottom, left

var widthScale = d3.scale.linear()
								.range([ 0, w - padding[1] - padding[3] ]);
			
			var heightScale = d3.scale.ordinal()
								.rangeBands([ padding[0], h - padding[2] ], 0.05);

var colorScale = d3.scale.category10();

var xAxis = d3.svg.axis()
							.scale(widthScale)
							.orient("bottom");

var yAxis = d3.svg.axis()
							.scale(heightScale)
							.orient("left");

var svg = d3.select("body")
						.append("svg")
						.attr("width", w)
						.attr("height", h);

d3.csv("redbook2.csv", function(data) {

data.sort(function(a, b) {
					return d3.descending(+a.Total, +b.Total);
				});

widthScale.domain([ 0, d3.max(data, function(d) {
					return +d.Total;
				}) ]);

heightScale.domain(data.map(function(d) { return d.Country; } ));
				
				colorScale.domain(data.map(function(d) { return d.Continent; } ));

var rects = svg.selectAll("rect")
								.data(data)
								.enter()
								.append("rect");

rects.attr("x", padding[3])
					.attr("y", function(d) {
						return heightScale(d.Country);
					})
					.attr("width", function(d) {
						return widthScale(d.Total);
					})
					.attr("height", heightScale.rangeBand())
					.attr("fill", function(d) {
						return colorScale(d.Continent);
					})
					.append("title")
					.text(function(d) {
						return d.Country + ": " + d.Total;
					});

svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
					.call(xAxis);

svg.append("g")
					.attr("class", "y axis")
					.attr("transform", "translate(" + (padding[3]+5) + ",0)")
					.call(yAxis);

});

</script>

</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js