D3 Examples - MODULE 5

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Transition Delays</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;
            }
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            h1 {
                font-size: 24px;
                margin: 0;
            }
​
            p {
                font-size: 14px;
                margin: 10px 0 0 0;
            }
​
            svg {
                background-color: white;
            }
​
            circle:hover {
                fill: orange;
            }
            
            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
​
        </style>
    </head>
    <body>
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        <h1>Corruption Perceptions by Country</h1>
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        <p>The &ldquo;Corruption Perceptions Index 2014&rdquo; Scores vs. their Standard Errors.</p>
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        <p>Score Scale: 0 (highly corrupt) to 100 (very clean)</p>
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        <p></p>
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        <p></p>
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        <script type="text/javascript">     
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​
            var w = 1200;
            var h = 600;
            var padding = [ 20, 10, 50, 120 ];  //Top, right, bottom, left
​
​
​
            var xScale = d3.scale.linear()
                                .range([ padding[3], w - padding[1] - padding[3] ]);
            
            var yScale = d3.scale.linear()
                                .range([ padding[0], h - padding[2] ]);
​
​
​
            var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom")
                            .ticks(15);
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            var yAxis = d3.svg.axis()
                            .scale(yScale)
                            .orient("left")
                            .tickFormat(function(d) {
                                return d;
                            });
​
​
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            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
​
​
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            d3.csv("CorruptionPerceptionsIndex2014.csv", function(data) {
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                xScale.domain([ 
                    0, 
                    d3.max(data, function(d) {
                        return +d.CPI_2014_Score;
                    })
                ]);
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                yScale.domain([
                    d3.max(data, function(d) {
                        return +d.Standard_Error;
                    }),
                    0
                ]);
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                var circles = svg.selectAll("circle")
                                .data(data)
                                .enter()
                                .append("circle");
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                circles.attr("cx", function(d) {
                        return xScale(d.CPI_2014_Score);
                    })
                    .attr("cy", function(d) {
                        return yScale(d.Standard_Error);
                    })
                    .attr("r", 0.1)
                    .attr("fill", "steelblue")
                    .append("title")
                    .text(function(d) {
                        return d.Country + "'s CPI 2014 is " + d.CPI_2014_Score + ", with a " + d.Standard_Error     + " Standard Error";
                    });
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                circles.sort(function(a, b) {
                        return d3.ascending(+a.CPI_2014_Score, +b.CPI_2014_Score);
                    })
                    .transition()
                    .delay(function(d, i) {
                        return i * 10;
                    })
                    .duration(500)
                    .attr("r", 4);
​
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(0," + (h - padding[2]) + ")")
                    .call(xAxis);
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                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3]) + ",0)")
                    .call(yAxis);
​
                svg.append("text")
                    .attr("x", (w - padding[3]) * 0.5 + padding[3])
                    .attr("y", h - (padding[0] * 0))
                    .attr("text-anchor", "middle")
                    .text("CPI 2014 Scores");
​
                svg.append("text")
                    .attr("x", (padding[3] * 0.5))
                    .attr("y", h * 0.5 )
                    .attr("text-anchor", "middle")
                    .text("Standard Error")
                    .attr("transform", "rotate(-90, 40, 250)");
​
            });
​
​
        </script>
​
    </body>
</html>
    