mkaz · October 2, 2012 04:09
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <head>
 <style>
 @font-face {
  font-family: 'xkcd';
  src: url('http://dl.dropbox.com/u/12305244/Humor-Sans.ttf');
 }

 body {
  font-size: 14px;
  font-family: 'xkcd',sans-serif;
 }

 .axis path, .axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
 }

 .line {
  fill: none;
  stroke: steelblue;
  stroke-width: 3px;
 }
 </style>
 </head>
 <body>
 <script src="//cdnjs.cloudflare.com/ajax/libs/d3/2.10.0/d3.v2.min.js" type="text/javascript"></script>
 <script type="text/javascript">
 // config start

 var xmin = -6;
 var xmax = 4;
 var ymin = 0;
 var ymax = 1100;
 var epsilon = 1.9;   // change for greater "hand-drawn" effect

 // your function to graph
 var equation = function(x) { return Math.pow(x-5, 2) * Math.pow(x+6, 2); }

 var step = 0.1; // probably not necessary to change but effects "hand-drawn"ness

 // config end

 var data = d3.range(xmin, xmax-1, 0.1).map(function(i) {
  jitter = Math.random() * (2*epsilon) - epsilon; // add randomness
  return {x: i, y: jitter + equation(i)};
 });

 var margin = {top: 10, right: 10, bottom: 20, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

 var x = d3.scale.linear()
    .domain([xmin, xmax])
    .range([0, width]);

 var y = d3.scale.linear()
    .domain([ymin, ymax])
    .range([height, 0]);

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

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

 var line = d3.svg.line()
    .x(function(d) { return x(d.x); })
    .y(function(d) { return y(d.y); });

 var svg = d3.select("body").append("svg")
    .datum(data)
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
    .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

 svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(xAxis);

 svg.append("g")
    .attr("class", "y axis")
    .call(yAxis);

 svg.append("path")
    .attr("class", "line")
    .attr("d", line);

 svg.append("svg:text")
  .attr("x", 125)
  .attr("y", 150)
  .attr("text-anchor", "right")
  .text("something poignant");

 svg.append("line")
  .attr("x1", 278)
  .attr("x2", 340)
  .attr("y1", 147)
  .attr("y2", 147)
  .style("stroke", "#000");

 svg.append("line")
  .attr("x1", 345)
  .attr("x2", 345)
  .attr("y1", 153)
  .attr("y2", 470)
  .style("stroke", "#F00");

 svg.append("svg:text")
  .attr("x", 350)
  .attr("y", 400)
  .style("color", "#F00")
  .text("bacon line");

 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<head>
	<style>
	@font-face {
	font-family: 'xkcd';
	src: url('http://dl.dropbox.com/u/12305244/Humor-Sans.ttf');
	}

	body {
	font-size: 14px;
	font-family: 'xkcd',sans-serif;
	}

	.axis path, .axis line {
	fill: none;
	stroke: #000;
	shape-rendering: crispEdges;
	}

	.line {
	fill: none;
	stroke: steelblue;
	stroke-width: 3px;
	}
	</style>
	</head>
	<body>
	<script src="//cdnjs.cloudflare.com/ajax/libs/d3/2.10.0/d3.v2.min.js" type="text/javascript"></script>
	<script type="text/javascript">
	// config start

	var xmin = -6;
	var xmax = 4;
	var ymin = 0;
	var ymax = 1100;
	var epsilon = 1.9; // change for greater "hand-drawn" effect

	// your function to graph
	var equation = function(x) { return Math.pow(x-5, 2) * Math.pow(x+6, 2); }

	var step = 0.1; // probably not necessary to change but effects "hand-drawn"ness

	// config end

	var data = d3.range(xmin, xmax-1, 0.1).map(function(i) {
	jitter = Math.random() * (2*epsilon) - epsilon; // add randomness
	return {x: i, y: jitter + equation(i)};
	});

	var margin = {top: 10, right: 10, bottom: 20, left: 40},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	var x = d3.scale.linear()
	.domain([xmin, xmax])
	.range([0, width]);

	var y = d3.scale.linear()
	.domain([ymin, ymax])
	.range([height, 0]);

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

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

	var line = d3.svg.line()
	.x(function(d) { return x(d.x); })
	.y(function(d) { return y(d.y); });

	var svg = d3.select("body").append("svg")
	.datum(data)
	.attr("width", width + margin.left + margin.right)
	.attr("height", height + margin.top + margin.bottom)
	.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	svg.append("g")
	.attr("class", "x axis")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis);

	svg.append("g")
	.attr("class", "y axis")
	.call(yAxis);

	svg.append("path")
	.attr("class", "line")
	.attr("d", line);

	svg.append("svg:text")
	.attr("x", 125)
	.attr("y", 150)
	.attr("text-anchor", "right")
	.text("something poignant");

	svg.append("line")
	.attr("x1", 278)
	.attr("x2", 340)
	.attr("y1", 147)
	.attr("y2", 147)
	.style("stroke", "#000");

	svg.append("line")
	.attr("x1", 345)
	.attr("x2", 345)
	.attr("y1", 153)
	.attr("y2", 470)
	.style("stroke", "#F00");

	svg.append("svg:text")
	.attr("x", 350)
	.attr("y", 400)
	.style("color", "#F00")
	.text("bacon line");

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