nautat

## index.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
    <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>
</head>
<body>
<script type="text/javascript">

    var data = [{value: 1}];

## index.html
<canvas id="canvas"></canvas>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var num = 20000;

var canvas = document.getElementById("canvas");
var width = canvas.width = 960;
var height = canvas.height = 500;
var ctx = canvas.getContext("2d");
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html>
	<head>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>
	</head>
	<body>
	<script type="text/javascript">

	var data = [{value: 1}];
	<canvas id="canvas"></canvas>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script>
	var num = 20000;

	var canvas = document.getElementById("canvas");
	var width = canvas.width = 960;
	var height = canvas.height = 500;
	var ctx = canvas.getContext("2d");