Exercise Module 4

<!DOCTYPE html>
<html lang="en">
<head>
		<meta charset="utf-8">
		<title>Exercise Module 4</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>

h1 {
				font-size: 30px;
				margin: 0;
			}

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

.key {
				font-size: 12px;
				margin: 10px 0 0 0;
			}

svg {
				background-color: Ghostwhite;
			}

rect:hover {
				fill: #339933;
			}
			
			.axis path,
			.axis line {
				fill: none;
				stroke: #000000;
				shape-rendering: crispEdges;
			}
			
			.axis text {
				font-family: sans-serif;
				font-size: 10px;
			}

.y.axis path,
			.y.axis line {
				opacity: 0;
			}

form {width:125px;height:60px;border:1px solid #ccc;padding:10px;}

</style>

</head>

<body>
		<h1>Barcelona family income by neighborhoods</h1>

<p>The 2013 family income in Barcelona neighborhoods </a></p>
		<p class="key">Source: <a href="https://opendata.bcn.cat/opendata/es">OpenDataBCN</a>. The number after the name of the neighborhood is the district number. (Index RFD Barcelona = 100)</p>

var widthScale = d3.scale.linear()
								.range([ 0, w - padding[1] - padding[3] ]);
			
			var heightScale = d3.scale.ordinal()
								.rangeRoundBands([ padding[0], h - padding[2] ], 0.10);

var xAxistop = d3.svg.axis() // top function axis
							.scale(widthScale)
							.orient("top");

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

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

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

d3.csv("BCN_Demographics_2013_family_Income.csv", function(data) {

/* això carrega les dades a la consola del navegador
console.log(data);
console.log(data.map(function(d) { return d.Barri; } ));
*/
				data.sort(function(a, b) {
					return d3.ascending(a.Ordre, b.Ordre);

});

widthScale.domain([ 0, d3.max(data, function(d) {
					return +d.Renda_familiar;
				}) ]);
				heightScale.domain(data.map(function(d) { return (d.Barri + ", " + d.Districte); } ));

var rects = svg.selectAll("rect")
								.data(data)
								.enter()
								.append("rect");

rects.attr("x", padding[3])
					.attr("y", function(d) {

return heightScale(d.Barri + ", " + d.Districte);
					})
					.attr("width", function(d) {
						return widthScale(d.Renda_familiar);
					})
					.attr("height", heightScale.rangeBand())
					.attr("fill", "steelblue")
					.append("title")
					.text(function(d) {
						return d.Any + ", " + d.Barri + " (" + d.Codibarri + ") " + " del Districte " + d.Districte + " té una renda familiar de " + d.Renda_familiar + " % respecte la mitjana de Barcelona";
					});

// Data text at the bottom of the bars
	svg.selectAll("text")
				   .data(data)
				   .enter()
				   .append("text")
				   .text(function(d) {
				   		return d.Renda_familiar;
				   })
				   .attr("x", function(d) {
				   		return widthScale(d.Renda_familiar) + padding[3] + 5;
				   })
				   .attr("y", function(d) {
				   		return heightScale(d.Barri + ", " + d.Districte) + 9;
				   })
				   .attr("font-family", "sans-serif")
				   .attr("font-size", "9px")
				   .attr("fill", "Lightgray");

// Axis on the top of the chart
				svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(" + padding[3] + "," + (paddingaxis[0] + padding[2]) + ")")
					.call(xAxistop);

svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(" + padding[3] + "," + (h - paddingaxis[1] - padding[2]) + ")")
					.call(xAxis);

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

});

</script>

</body>
</html>

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

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