D3 Examples - Preparing for Canada's Future, Today!

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Hope for the Future</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
​
        <style type="text/css">
            
            body {
                background-color: white;
                font-family: Helvetica, Arial, sans-serif;
                font-size:12px;
            }
​
            h1 {
                font-size: 24px;
                margin: 0;
            }
​
            p {
                font-size: 14px;
                margin: 10px 0 0 0;
            }
​
            svg {
                background-color: white;
            }
​
            rect:hover {
                fill: orange;
                text:visible;
            }
            
            .axis {
                font-size: 18px;
            }
            .legend {
                font-size: 14px;
                font-style: italic;
            }
​
            }
​
        </style>
    </head>
    <body>
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        <h1>Preparing for Canada's Future, Today!</h1>
​
        <script type="text/javascript">     
​
            var padding = [ 10, 10, 20, 40 ];  //Top, right, bottom, left
            var w = window.innerWidth * .9;
            var h = window.innerHeight * .8;
            var fullw = w * 1.1;
            var fullh = h * 1.2;
​
​
​
            var heightScale = d3.scale.linear()
                                .range([ 0, h ]);
            
            var widthScale = d3.scale.ordinal()
                                .rangeRoundBands([ 0, w ], 0.1);
​
​
​
            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", fullw)
                        .attr("height", fullh);
​
​
​
            d3.csv("terrible.csv", function(data) {
​
                data.sort(function(a, b) {
                    return d3.ascending(+a.useful, +b.useful);
                });
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                heightScale.domain([ 0, d3.max(data, function(d) {
                    return +d.percentage;
                }) ]);
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                widthScale.domain(data.map(function(d) { return d.knowledge; } ));
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                var rects = svg.selectAll("rect")
                                .data(data)
                                .enter()
                                .append("rect");
​
                    rects.attr("height", function(d){
                        return (d.horrifying * h / 100)
                    })
                    
                    .attr("x", function(d) {
                        return widthScale(d.knowledge);
                    })
                    .attr("y", function(d) {
                        return h - heightScale(d.percentage) + ( padding[0] + padding[2]);
                    })
                    .attr("width", widthScale.rangeBand())
                    .attr("fill", function(d){
                        return "rgb("+d.horrifying * 25+","+d.horrifying * 12+","+d.horrifying * 2+")"
                    }
                        )
                    .append("title")
                    .text(function(d) {
                        return d.knowledge + " : " + d.percentage + "%";
                    });
                    ;
​
                var texts = svg.selectAll("text")
                    .data(data)
                    .attr("class","label")
                    .enter()
                    .append("text")
                    .text(function(d){
                        return d.percentage + "%";
                    })
                    .attr("x", function(d){
                        return widthScale(d.knowledge);
                    })
                    .attr("y", function(d){
                        return h - heightScale(d.percentage) + ( padding[0] + padding[2])
                    });
​
​
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + padding[3] / 2 + "," + h / 3 + ")")
                    .append("text")
                    .attr("transform", "rotate(-90)")
                    .style("text-anchor", "end")
                    .text("percent knowledgeable");
​
​
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(" + (w / 3 -  padding[1]) +  ", " + (fullh - padding[0] - padding[2]) + ")")
                    .append("text")
                    .text("<-- less useful knowledge -- more useful knowledge -->");
​
                svg.append("g")
                    .attr("class", "legend")
                    .attr("transform", "translate("+ (w / 3 - padding[3] - padding[1])+", " + (padding[2]) + ")")
                    .append("text")
                    .text("each rectangle is scaled & coloured by how concerning the percentage is");
​
            });
​
​
        </script>
​
    </body>
</html>
    