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biovisualize/README.md

Last active December 14, 2015 07:19
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Slopegraph lines in SVG and Canvas
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<title>Slopegraph.js</title>
<style type="text/css">
</style>
<script src="http://github.com/mbostock/d3/raw/master/d3.min.js"></script>
<script type="text/javascript">
var dataset=[[10, 100], [430, 441], [103, 89], [228, 62], [393, 258], [250, 167], [290, 322], [480, 17], [94, 27], [116, 163]]
var widthOfCanvas = '500';
var heightOfCanvas = dataset.join().split(',').sort(function(a,b){return b - a})[0];
window.onload = function() {
var drawingCanvas = document.getElementById('slopegraph');
drawingCanvas.setAttribute('width', widthOfCanvas);
drawingCanvas.setAttribute('height', heightOfCanvas);
if(drawingCanvas && drawingCanvas.getContext) {
var context = drawingCanvas.getContext('2d');
context.strokeStyle = "#ccc";
function chart(leftValue, rightValue){
context.moveTo(0,leftValue);
context.lineTo(widthOfCanvas, rightValue);
context.stroke();
};
for (var key in dataset) {
chart(dataset[key][0], dataset[key][1]);
};
}
var vis = d3.select("#svgslopegraph").append("svg:svg")
.attr("width", widthOfCanvas)
.attr("height", heightOfCanvas);
vis.selectAll("line")
.data(dataset)
.enter()
.append("svg:line")
.style("stroke-width", 1)
.style("stroke", "#ccc")
.attr("y1", function (d) { return d[0]; })
.attr("y2", function (d) { return d[1]; })
.attr("x1", function (d) { return 0; })
.attr("x2", function (d) { return widthOfCanvas; });
}
</script>
</head>
<body>
<canvas id="slopegraph">
<p>Your browser doesn't support canvas. Firefox and Chrome do, though.</p>
</canvas>
<div id="svgslopegraph" style="position:absolute; top: 10px;left: 600px;"></div>
</body>
</html>
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