D3 Examples - Exercise Module 4

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<!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>
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        <style type="text/css">
            
            body {
                background-color: Ghostwhite;
                font-family: Helvetica bold, Arial bold, sans-serif;
            }
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            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;
            }
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            .y.axis path,
            .y.axis line {
                opacity: 0;
            }
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            form {width:125px;height:60px;border:1px solid #ccc;padding:10px;}
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        </style>
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    </head>
​
​
    <body>
        <h1>Barcelona family income by neighborhoods</h1>
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        <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>
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<script>
            var w = 680;
            var h = 1000;
            var padding = [ 20, 30, 30, 245 ];  //Top, right, bottom, left
            var paddingaxis = [ 20, 30 ];  //Top, bottom
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​
            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");
​
​
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            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
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            d3.csv("BCN_Demographics_2013_family_Income.csv", function(data) { 
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/* 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);
​
                }); 
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                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");
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                rects.attr("x", padding[3])
                    .attr("y", function(d) {
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                        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");
​
​
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// 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>
    