D3 Examples - City Park Data

xxxxxxxxxx
 
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>City Park Acreage</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            body {
                background-color: #6CA698;
            }
​
            svg {
                background-color: white;
            }
​
            h2 {
                font-size: "36";
                font-weight: "bold";
                font-family: "Helvetica";
                color: #ffffff;  
            }
​
        </style>
    </head>
    <body>
​
        <h2> City Park Total Acreage</h2>
​
        <script type="text/javascript">     
​
​
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", 1920)
                        .attr("height", 2200);
​
​
​
            d3.csv("Map_Parks.csv", function(data) {
​
                data.sort(function(a, b) {
                    //return d3.descending(a.acreage, b.acreage);
​
                    //If your numeric values aren't sorting properly,
                    //try commenting out the line above, and instead using:
                    //
                    return d3.descending(+a.acreage, +b.acreage);
                    //
                    //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.style("fill", "#868C35");
                rects.attr("x", 300)
                    .attr("y", function(d, i) {
                        return i * 25;
                    })
                    .attr("width", function(d) {
                        return d.acreage * 2;
                    })
                    .attr("height", 20)
                    .append("title")
                    .text(function(d) {
                        return d.name + "'s total acreage is " + d.acreage;
                    });
​
                            // add axis labels on left, 10px apart, starting at 8px down and 190px across
                    svg.selectAll("text")
                    .data(data)
                    .enter()
                    .append("text")
                    .text(function(d){
                        return d.name;
                    })
                    .attr("x", 280)
                    .attr("y", function(d, i){
                        return i * 25 + 15;
                    })
        // set the type attributes for the labels                   
                    .attr({
                        "fill": "black",
                        "font-family": "sans-serif",
                        "font-size": "14px",
                        "text-anchor": "end"
                    })
​
​
            });
​
​
        </script>
    </body>
</html>
    