D3 Examples - Module 4: Ages of Top 10 Finishers

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Historic Dipsea Results with D3</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            body {
                background-color: white;
            }
​
            h1 {
                font-family: sans-serif;
                font-size: 24px;
                margin: 0;
            }
​
            p {
                font-family: sans-serif;
                font-size: 14px;
                margin: 10px 0 0 0;
            }
​
            svg {
                background-color: white;
            }
​
​
            .datalabels text {
                font-family: sans-serif;
                font-size: 10px;
            }
​
            rect:hover {
                fill: orange;
            }
            
            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
​
            .y.axis path,
            .y.axis line {
                opacity: 0;
            }
​
        </style>
    </head>
    <body>
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        <h1>The Dipsea Race</h1>
        <p>Ages of the Top 20 Dipsea finishers in 2014.  Source: <a href="https://www.dipsea.org">dipsea.org</a></p>
​
        <script type="text/javascript">     
            //Set variables
            var dataset2;
            var w = 600;
            var h = 400;
            var padding = [ 20, 20, 20, 30 ];
​
            //Set scales
            var xScale = d3.scale.linear().range([ 0, w - padding[1] - padding[3]]);
            var yScale = d3.scale.ordinal()
                                .rangeRoundBands([ padding[0], h - padding[2] ], 0.2);
​
            //Load in contents of CSV file
            d3.csv("dipsea_filtered.csv", function(data) {
                //Filter data set
                dataset2 = data.filter(function(d) { return d.Year == 2014}).filter(function(d) { return d.Place <= 20 });
                
                //Set x and y domain
                xScale.domain([ 0, d3.max(dataset2, function(d) {
                    return +d.Age;
                })]);
​
                //yScale.domain(d3.range(dataset2.length));
                yScale.domain(dataset2.map(function(d) { return d.Place; }));
​
                var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom");
​
                var yAxis = d3.svg.axis()
                            .scale(yScale)
                            .orient("left");
​
​
                //Create SVG canvas
                var svg = d3.select("body")
                    .append("svg")
                    .attr("width", w)
                    .attr("height", h);
​
​
                //Log 'data' to the console, for verification.
                //console.log(data);
​
                //Bind filtered data into rect placeholders
                var rects = svg.selectAll("rect")
                    .data(dataset2)
                    .enter()
                    .append("rect");
​
                //Set attributes of rects
                rects.attr("x", padding[3])
                    .attr("y", function(d) {
                        return yScale(d.Place);
                    })
                    .attr("width", function(d) {
                        return xScale(d.Age);
                    })
                    .attr("height", yScale.rangeBand())
                    .attr("fill", "grey")
                    .append("title")
                    .text(function(d) {
                        return "Place: " + d.Place + " Age: " + d.Age + " Head Start : " + d.HeadStart + " minutes";
                    });
​
                svg.selectAll("text")
                    .data(dataset2)
                    .enter()
                    .append("text")
                    .text(function(d) {
                        return d.Age;
                    })
                    .attr("class","datalabels")
                    .attr("text-anchor", "end")
                    .attr("dominant-baseline","middle")
                    .attr("font-size","10px")
                    .attr("fill","white")
                    .attr("x", function(d) {
                        return padding[3] + xScale(d.Age) - 2;
                    })
                    .attr("y", function(d) {
                        return yScale(d.Place) + yScale.rangeBand()/2 ;
                    });
                    
​
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
                    .call(xAxis);
​
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3] - 5) + ",0)")
                    .call(yAxis);
​
​
​
            });
​
​
        </script>
​
        
​
    </body>
</html>
    