mcwd3test/index_barchart.html at master · waldrep/mcwd3test · GitHub

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<!DOCTYPE html>
<html lang = "en">
	<head>
		<meta charset="utf-8">
		<title>D3 Test</title>
		<script type="text/javascript" src="d3/d3.v3.js"></script>
		<style type = "text/css">
		div.graph{
			width:0px;
			height:0px;
			position: absolute;
			top:0;
			bottom:0;
			left:0;
			right:0;
			margin: auto;
		}
			</style>

	</head>
	<body>
			<div class= "graph">
		<script type="text/javascript">
		var dataset = [5, 10, 13, 19, 21, 25, 22, 18, 15, 13, 11, 12, 15, 20, 18, 17, 16, 18, 23, 25];
		var w = 500;
		var h = 100;
		var barPadding = 1;

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

		svg.selectAll("rect")
			.data(dataset)
			.enter()
			.append("rect")
			.attr("x", function(d,i){
				return i * (w / dataset.length);
			})
			.attr("y", function(d){
				return h - d * 4;
			})
			.attr("width", w / dataset.length - barPadding)
			.attr("height", function(d){
				return d * 4;
			});
		svg.selectAll("rect")
			.attr("fill",function(d){
				return "rgb(" + (d*10) + ",0, 0)";
			});

		svg.selectAll("text")
			.data(dataset)
			.enter()
			.append("text")
			.text(function(d){
				return d;
			})
			.attr("x",function(d,i){
				return i * (w/dataset.length) + (w/dataset.length - barPadding) /2;
			})
			.attr("y",function(d){
				return h - (d*4) + 14;
			})
			.attr("font-family","sans-serif")
			.attr("font-size","14px")
			.attr("fill", "white")
			.attr("text-anchor","middle")
			;


 	    </script>
</div>
	</body>
</html>