D3 Examples - MODULE5 Exercise: Scatterplot

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Water Consumption NY</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            
            body {
                font-family: Helvetica, Arial, sans-serif;
                background-color: #6dcff6;
            }
            
            p {
                color: #3e3b3b;
                font-size: 11px;
                line-height: 0;
                margin: 15px 0 15px 10px;
            }
            
            
            h1 {
                color: #ffffff;
                font-family:tahoma;
                margin: -9px 0 0 10px;
                font-weight:100;
                font-size:200%;
                letter-spacing:3pt;
            }
            
            h3 {
                background-color: #ffffff; 
                color: #666666;
                font-family: tahoma;
                font-size: 14px;
                margin: 15px 0 5px 10px;
                font-weight:100;
                text-indent:10px;
                letter-spacing:3pt;
            }
            
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            em {
                fill: #000000;
                opacity: 0.7;
                font-style: italic;
            }
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            circle:hover {
                fill: #ffffff;
                transition: all 0.4s ease-in-out 0s;
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            }
            
            
        
            
            svg {
                background-color: #6dcff6;
            }
            
            .axis path,
            .axis line {
                fill: none;
                opacity: 1;
                stroke: #3e3b3b;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 7px;
                opacity: 1;
            }
            
            
        </style>
    </head>
    <body>
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        <h3>WATER CONSUMPTION</h3>
        <h1>IN NEW YORK CITY</h1>
        
                <p>A brief History of Water Consumption: New York City Consumption (Millions of Gallons) VS Per capita (Gallons per person).</p>
        
        <p><em>Source: <a href="https://catalog.data.gov/dataset/water-consumption-in-the-new-york-city-3d2f0">DATA.GOV</a>, 2015.</em></p>
        
        
        <script type="text/javascript">     
            
        
            var w = 650;
            var h = 350;
            var padding = [ 10, 20, 20, 35 ];  //Top, right, bottom, left
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​
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            var xScale = d3.scale.linear()
                                .range([ 40, w - padding[0] - padding[0] ]);
            
            var yScale = d3.scale.linear()
                                .range([ padding[0], h - padding[2] ], 0.1);
            
            
            var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom")
                            .ticks("10")
                            .tickFormat(function(d) {
                                return d + " MG";
                                });
            
            var yAxis = d3.svg.axis()
                            .scale(yScale)
                            .orient("left")
                            .ticks("10")
                            .tickFormat(function(d) {
                                return d + " Gl";
                            });
            
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            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
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​
            
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            d3.csv("WaterConsumptionInTheNewYorkCity.csv", function(data) {
                
                xScale.domain([ 
                    d3.min(data, function(d) {
                        return +d.NYCConsumptionMilliongallonsperday;
                    }), 
                    d3.max(data, function(d) {
                        return +d.NYCConsumptionMilliongallonsperday;
                    })
                ]);
                
                yScale.domain([
                    d3.max(data, function(d) {
                        return +d.PerCapitaGallonsperpersonperday;
                    }),
                    d3.min(data, function(d) {
                        return +d.PerCapitaGallonsperpersonperday;
                    })
                ]);
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                var circle = svg.selectAll("circle")
                                .data(data)
                                .enter()
                                .append("circle");
                
                circle.attr("cx", function(d) {
                        return xScale(d.NYCConsumptionMilliongallonsperday);
                    })
                    .attr("cy", function(d) {
                        return yScale(d.PerCapitaGallonsperpersonperday);
                    })
                    .attr("r", 12)
                    .attr("fill", "#6dcff6")
                    .append("title")
                    .text(function(d) {
                        return d.NYCConsumptionMilliongallonsperday + " Millions of gallons" + ", and " + d.PerCapitaGallonsperpersonperday + " Gallons per person. " + "Per day in " + d.Year;
                    });
            
                circle.sort(function(a, b) {
                        return d3.ascending(+a.Year, +b.Year);
                    })
                    .transition()
                    .delay(function(d, i) {
                        return i * 150;
                    })
                    .duration(1000)
                    .attr("fill", "#3e3b3b")
                    .attr("r", 4);
                
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(0," + (h - padding[2] + 5) + ")")
                    .call(xAxis);
                
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3]) + ",0)")
                    .call(yAxis);
​
            });
​
    
​
        </script>
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    </body>
</html>
    