scattered-scatterplot/10_scatterplot.html at master · emcmahon013/scattered-scatterplot · GitHub

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<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>D3: Scatterplot!</title>
		<script type="text/javascript" src="http://d3js.org/d3.v3.min.js"></script>
		<style type="text/css">


			body {
				background-color: #ccc;
			}

			.buttonContainer {
				margin: 10px;
			}

			svg {
				background-color: white;
			}

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

			.axis text {
				font-family: optima;
				font-size: 11px;
			}

			.tooltip {
				position: absolute;
				width: 100px;
				height: 40px;
				font: optima;
				font-size: 10pt;
				padding:5px;
				background-color:white;
				border-radius:1px;
				box-shadow: 0 1px 5px rgba(0,0,0,0.4);
				border:1px solid rgba(200,200,200,.85);
				text-align:center;
				pointer-events: none;
				;
			}

		</style>
	</head>
	<body>

		<div class="buttonContainer">
			<input type="button" value="Randomize">
		</div>

		<script type="text/javascript">

			//Width and height
			var w = 500;
			var h = 300;
			var padding = 40;

			var tooltip=d3.select("body").append("div")
				.attr("class","tooltip")
				.style("opacity",0);

			//Dynamic, random dataset
			var dataset = [];											//Initialize empty array
			var numDataPoints = 50;										//Number of dummy data points to create
			var maxRange = Math.random() * 1000;						//Max range of new values
			for (var i = 0; i < numDataPoints; i++) {					//Loop numDataPoints times
				var newNumber1 = Math.floor(Math.random() * maxRange);	//New random integer
				var newNumber2 = Math.floor(Math.random() * maxRange);	//New random integer
				dataset.push([newNumber1, newNumber2]);					//Add new number to array
			}

			//Create scale functions
			var xScale = d3.scale.linear()
								 .domain([0, d3.max(dataset, function(d) { return d[0]; })])
								 .range([padding, w - padding]);

			var yScale = d3.scale.linear()
								 .domain([0, d3.max(dataset, function(d) { return d[1]; })])
								 .range([h - padding, padding]);

			//Define X axis
			var xAxis = d3.svg.axis()
							  .scale(xScale)
							  .orient("bottom")
							  .ticks(5);

			//Define Y axis
			var yAxis = d3.svg.axis()
							  .scale(yScale)
							  .orient("left")
							  .ticks(5);

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

			//Create circles
			svg.append("g")
			   .attr("id", "circles")
			   .selectAll("circle")
			   .data(dataset)
			   .enter()
			   .append("circle")
			   .attr("cx", function(d) {
					return xScale(d[0]);
			   })
			   .attr("cy", function(d) {
					return yScale(d[1]);
			   })
			   .attr("r", 10)
			   .on("mouseover", function(d){
			   		tooltip.transition()
			   			.duration(200)
			   			.style("opacity",1);
			   		tooltip.html("testing tooltip"+"<br>"
			   			+d3.format(".0f")(d3.select(this).attr("cx"))
			   			+", "+d3.format(".0f")(d3.select(this).attr("cy")))
			   			.style("left",d3.select(this).attr("cx")-50+"px")
			   			.style("top",d3.select(this).attr("cy")-15+"px")
			   		d3.select(this)
			   			.style("opacity",.5);
			   	})
			   .on("mouseout",function(d){
			   		d3.select(this)
						.style("opacity",1)
					tooltip.transition()
						.duration(500)
						.style("opacity",0)
;
			   });

			//Create X axis
			svg.append("g")
				.attr("class", "x axis")
				.attr("transform", "translate(0," + (h - padding + 5) + ")")
				.call(xAxis);

			//Create Y axis
			svg.append("g")
				.attr("class", "y axis")
				.attr("transform", "translate(" + (padding - 5) + ",0)")
				.call(yAxis);


			//On click, update with new data
			d3.select("input")
				.on("click", function() {

					//New values for dataset
					var numValues = dataset.length;						 		//Count original length of dataset
					var maxRange = Math.random() * 1000;						//Max range of new values
					dataset = [];  						 				 		//Initialize empty array
					for (var i = 0; i < numValues; i++) {				 		//Loop numValues times
						var newNumber1 = Math.floor(Math.random() * maxRange);	//New random integer
						var newNumber2 = Math.floor(Math.random() * maxRange);	//New random integer
						dataset.push([newNumber1, newNumber2]);					//Add new number to array
					}


					//Update scale domains
					xScale.domain([0, d3.max(dataset, function(d) { return d[0]; })]);
					yScale.domain([0, d3.max(dataset, function(d) { return d[1]; })]);

					//Update all circles
					svg.selectAll("circle")
					   .data(dataset)
					   .transition()
					   .duration(1000)
					   .attr("cx", function(d) {
							return xScale(d[0]);
					   })
					   .attr("cy", function(d) {
							return yScale(d[1]);
					   });

					//Update X axis
					svg.select(".x.axis")
						.transition()
						.duration(1000)
						.call(xAxis);

					//Update Y axis
					svg.select(".y.axis")
						.transition()
						.duration(1000)
						.call(yAxis);

				});


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