D3 Examples - FBGovernmentRequests

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Facebook Data Requests by Country</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            h1 {
                font-family: sans-serif;
                margin-bottom:0;
            }
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            p {
                font-family: sans-serif;
                font-size: .75em;
                color:gray;
                margin-bottom:0;
            }
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            svg {
                background-color: white;
            }
​
            rect:hover {
                fill: #00664C;
            }
​
            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
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            .y.axis path,
            .y.axis line {
                opacity: 0;
            }
​
        </style>
    </head>
    <body>
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        <h1>Requests for Facebook User Data by Government Officials</h1>
        <p>July 2014 – Dec. 2014  |  Source: <a href="https://govtrequests.facebook.com/">Facebook</a></p>
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        <script type="text/javascript">     
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            var w = 750; //sets the width variable 
            var h = 1400; //sets the height variable
            var padding = [0, 10, 60, 120];  //top, right, bottom, left 
​
​
            var widthScale = d3.scale.linear()
                        //.domain([0,15000]) input values
                        .range([0,w - padding[1] - padding[3]]); //pixel values 
​
​
            var heightScale = d3.scale.ordinal()
                        .rangeRoundBands([padding[0], h - padding[2]], 0.12); //rounds to nearest pixel and adds space in between       
​
​
            var xAxis = d3.svg.axis()
                            .scale(widthScale)
                            .orient("bottom");  
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            var yAxis = d3.svg.axis()
                            .scale(heightScale)
                            .orient("left");                                            
​
​
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);         
​
​
            d3.csv("FBGovernmentRequests.csv", function(data) {
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                data.sort(function(a, b) {
                    return d3.descending(+a.dataRequests, +b.dataRequests);
                });
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                widthScale.domain([0, d3.max(data, function(d){
                    return +d.dataRequests;
                }) ]);
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                heightScale.domain(data.map(function(d) {return d.Country;}));
                var rects = svg.selectAll("rect")
                    .data(data)
                    .enter()
                    .append("rect");
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                rects.attr("x", padding[3])
                    .attr("y", function(d, i) {
                        return heightScale(d.Country);
                    })
                    .attr("width", function(d) {
                        return widthScale(d.dataRequests);
                    })
                    .attr("height", heightScale.rangeBand())
                    .attr("fill", "#00CC99")
                    .append("title")
                    .text(function(d) {
                        return d.Country + " requested data from " + d.dataRequests + " users";
                    }); 
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                    svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
                    .call(xAxis);
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                    svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3]) + ",0)")
                    .call(yAxis);
​
​
​
            });
​
​
​
​
    
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        </script>
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​
​
    </body>
</html>
    