DVD32015_Module 5 Scatter plot

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Scatterplot</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			h1 {
				font-size: 24px;
				margin: 0;
			}

p {
				font-size: 14px;
				margin: 10px 0 0 0;
			}

circle:hover {
				fill: #13B4DE;
			}
			
			.axis path,
			.axis line {
				fill: none;
				stroke: #aaaaaa;
			}
			
			.axis text {
				font-family: sans-serif;
				font-size: 11px;
				fill:#aaaaaa;
			}

</style>
	</head>
	<body>

<h1>The number of CCTV cameras by district in Seoul, Korea</h1>

<p>X axis : The number of cctv cameras <br> Y axis : The population of seoul <br> The text on circle is name of seoul district</p>

var w = 900;
			var h = 600;
			var padding = [ 20, 10, 50, 80 ];  //Top, right, bottom, left

var xScale = d3.scale.linear()
								.range([ padding[3], w - padding[1] - padding[3] ]);
			
			var yScale = d3.scale.linear()
								.range([ h - padding[2], padding[0]]);

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

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

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

d3.csv("data.csv", function(data) {
				data.forEach(function(d){
					d.value=+d.value;
					d.population=+d.population;
				});

xScale.domain([0,d3.max(data, function(d) {
						return d.value;
					})
				]);

yScale.domain([0, d3.max(data, function(d) {
						return d.population;
					})
				]);

var circles = svg.selectAll("circle")
								.data(data)
								.enter()
								.append("circle");

circles.attr("cx", function(d) {
						return xScale(d.value);
					})
					.attr("cy", function(d) {
						return yScale(d.population);
					})
					.attr("r", 6)
					.attr("fill", "#02436E");

svg.selectAll(".labeltext")
				   .data(data)
				   .enter()
				   .append("text")
				   .text(function(d) {
				   		return d.area;
				   })
				   .attr("x", function(d) {
				   		return xScale(d.value);
				   })
				   .attr("y", function(d) {
				   		return yScale(d.population)-10;
				   })
				   .attr("font-family", "sans-serif") // 폰트 종류, sans-serif : 고딕 
				   .attr("font-size", "10px") // 폰트 크기 
				   .attr("fill", "#888888") // 텍스트 색상
				   .attr("text-anchor","middle"); // 텍스트 정렬

svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(0," + (h - padding[2] + 10) + ")")
					.call(xAxis);

svg.append("g")
					.attr("class", "y axis")
					.attr("transform", "translate(" + (padding[3] - 10) + ",0)")
					.call(yAxis);

});
		</script>
	</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js