D3 Examples - Cambridge Development Projects

xxxxxxxxxx
 
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Cambridge Development since 2010</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            body {
                background-color: #ddddff;
            }
​
            svg {
                background-color: #ddddff;
            }
​
        </style>
    </head>
    <body>
    <h2>Gross floor area of Cambridge development projects since 2010</h2>
    <p>This chart shows the gross floor area, in square feet, of development projects in Cambridge, Mass since 2010.
    It includes projects which are not yet completed. Mouse over a bar to see the project address and type.</p>
​
        <script type="text/javascript">     
            var rowHeight = 12;
            var height = 96 * rowHeight;
​
            // Formatter for numbers with commas
            format = d3.format('0,000');
​
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", 700)
                        .attr("height", height);
​
            d3.csv("https://gist.githubusercontent.com/kent37/313c30a0fda288f994a2/raw/0e489d6d0cbd877d4fec6d54b6ec9bc60839d4b4/CambridgeDevelopment.csv", function(data) {
​
                data.sort(function(a, b) {
                    return d3.descending(+a['Total.GFA'], +b['Total.GFA']);
​
                    //If your numeric values aren't sorting properly,
                    //try commenting out the line above, and instead using:
                    //
                    //return d3.descending(+a['Total.GFA'], +b['Total.GFA']);
                    //
                    //Data coming in from the CSV is saved as strings (text),
                    //so the + signs here force JavaScript to treat those
                    //strings instead as numeric values, thereby fixing the
                    //sort order (hopefully!).
                });
​
                var rects = svg.selectAll("rect")
                                .data(data)
                                .enter()
                                .append("rect");
​
                rects.attr({
                        x: 0,
                        y: function(d, i) {
                            return i * rowHeight;
                        },
                        width: function(d) {
                            return d['Total.GFA'] / 1000;
                        },
                        height: rowHeight-2,
                        fill: function(d) { 
                            return d['Year.Complete'] == 'Future' ? 'blue' : 'rgb(0, 0, 180)'; 
                        }
                    })
                    .append("title")
                    .text(function(d) {
                        return d['Address'] + " - " + d['Primary.Use'];
                    });
​
                svg.selectAll("text")
                   .data(data)
                   .enter()
                   .append("text")
                   .text(function(d) {
                        return d['Year.Complete'] + " - " + format(+d['Total.GFA']) + ' sq ft';
                   })
                   .attr({
                        x: function(d) { return d['Total.GFA'] / 1000 + 20; },
                        y: function(d, i) {
                            return i * rowHeight + rowHeight/2 + 2;
                        },
                        'font-family': "sans-serif",
                        'font-size': "9px",
                        fill: "black"
                    })
                   .each(function(d) {
                        d.width = this.getBBox().width;
                    })
                ;
            });
​
​
        </script>
​
    </body>
</html>
    