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scatterplot.html
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scatterplot.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>D3: SVG bar chart with value labels</title>
<script type="text/javascript" src="../d3/d3.js"></script>
<style type="text/css">
.axis path, .axis line {
fill: none;
stroke: black;
shape-rendering: crispEdges;
}
.axis text {
font-family: sans-serif;
font-size: 11px;
}
text {
fill: olive;
}
</style>
</head>
<body>
<p>Click on this text to update the chart with new data values as many times as you like!</p>
<script type="text/javascript">
var w = 500;
var h = 300;
var padding = 30;
// Static Data Set
// var dataset = [
// [ 5, 20 ],
// [ 480, 90 ],
// [ 250, 50 ],
// [ 100, 33 ],
// [ 330, 95 ],
// [ 410, 12 ],
// [ 475, 44 ],
// [ 25, 67 ],
// [ 85, 21 ],
// [ 220, 88 ],
// [ 600, 150]
// ];
// Dynamic Data Set
var dataset = [];
var numDataPoints = 50;
var maxRange = Math.random() * 1000;
for (var i = 0; i < numDataPoints; i++) {
var newNumber1 = Math.floor(Math.random() * maxRange);
var newNumber2 = Math.floor(Math.random() * maxRange);
dataset.push([newNumber1, newNumber2]);
}
// Creating scale functions
var xScale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[0]; })])
.range([padding, w - padding * 2]);
var yScale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[1]; })])
.range([h - padding, padding]);
var rScale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[1]; })])
.range([2, 5]);
var formatAsPercentage = d3.format(".1%");
// Setting up an Axis
var xAxis = d3.svg.axis()
.scale(xScale)
.orient("button")
.ticks(5);
// .tickFormat(formatAsPercentage);
var yAxis = d3.svg.axis()
.scale(yScale)
.orient("left")
.ticks(5);
// .tickFormat(formatAsPercentage);
// Creating SVG elements
var svg = d3.select("body").append("svg").attr("width", w).attr("height", h);
//Defining clipping path
svg.append("clipPath")
.attr("id", "chart-area")
.append("rect")
.attr("x", padding)
.attr("y", padding)
.attr("width", w - padding * 3)
.attr("height", h - padding * 2);
//Creating circles
svg.append("g")
.attr("id", "circles")
.attr("clip-path", "url(#chart-area)")
.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", function(d) {
return rScale(d[1]);
});
// Commented this to remove the labels
// Labels on the data points
// *
// svg.selectAll("text").data(dataset).enter().append("text").text(function(d) {
// return d[0] + "," + d[1];
// }).attr("x", function(d) {
// return xScale(d[0]);
// }).attr("y", function(d) {
// return yScale(d[1]);
// }).attr("font-family", "sans-serif").attr("font-size", "11px").attr("fill", "red");
// *
//Creating X axis and Y axis
svg.append("g")
.attr("class", "x axis") // Assiging an 'axis' class
.attr("transform", "translate(0," + (h - padding) + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" + padding + ",0)")
.call(yAxis);
d3.select("p")
.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)
.each("start", function() {
d3.select(this)
.attr("fill", "magenta")
.attr("r", 7);
})
.each("end", function() {
d3.select(this)
.transition()
.duration(500)
.attr("fill", "black")
.attr("r", 2);
})
.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>