D3 Examples - Assignment Week 5

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Divvy_Distances</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js">
        </script>
        <style type="text/css">
            
            body {  
                background-color: #8B8878;
                font-family: helvetica;
                font-weight: bold; 
                margin-left:10px; 
                text-align: left;           
            }
            
            svg, div {
                background-color: #E0E0E0;
            }
                
            .dot {
                stroke: #000000;
                stroke-width: 1;
                stroke-opacity: .7;
                fill-opacity: .7;
            }       
        
            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                shape-rendering: crispEdges;
            }
            
            .axis minor line {
                stroke: #777;
                stroke-dasharray: 2,2;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
                    
            
            h1 {
                font-size: 32px;
                margin: 0;
                color: #F8F8FF;
            }
            
            
            p {
                position: relative;
                margin: 0;
                left: 1px;
                color: #F8F8FF; 
            }
    
            div {
                text-align:left; 
                width:990px; 
                font-size:16px; 
                color: #000000;
                font-weight:bold; 
                padding-left:10px; 
                padding-bottom:10px;
                padding-top:10px; 
            }
        
        </style>        
    </head>
    <body>
    
        
        <h1>Chicago Divvy BikeShare</h1>
        
        <script type="text/javascript" >
        
        var w = 1000;
        var h = 1000;
        var padding = [20, 10, 50, 200];
        
        
        var xScale = d3.scale.linear()
                            .range([padding[2] + 75, w-padding[3] + 100]);
                            
        var yScale = d3.scale.linear()
                            .range([padding[2], h-padding[2]]);
        
        
        var xAxis = d3.svg.axis()
                    .scale(xScale)
                    .orient("bottom")
                    .tickFormat(function(d) {
                        return (d3.round(d/60));
                    })
                    .ticks(5);
​
        var t_xAxis = d3.svg.axis()
                    .scale(xScale)
                    .orient("top")
                    .tickFormat(function(d) {
                        return (d3.round(d/60));
                    })
                    .ticks(5);
​
        var yAxis = d3.svg.axis()
                        .scale(yScale)
                        .orient("left");
        
        var dist = "Trip distances and saddle times.";
        
        
        d3.select("body").append("div").text(dist);
            
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height",h)
                    ;
                
            d3.csv("Chicago_DivvyBikeShare_01pct.csv", function(data) {
​
                data = data.filter(function(d){
                    return d.ridedistM < 12500 && d.seconds < 2500;
                });
​
                xScale.domain([0,
                    d3.max(data, function(d) {
                        return +d.seconds;
                    })
                ]);
                
                
                yScale.domain([
                    d3.max(data, function(d) { 
                        return +d.ridedistM; 
                    }),0
                
                ]);
​
                
                var circles = svg.selectAll(".dot")
                                .data(data)
                                .enter()
                                .append("circle")
                                .attr("class","dot")
                                .attr("fill", "#00B2EE")
                                ;
                            
                circles.attr("cx", function(d) {
                            return xScale(d.seconds);
                        })
                        .attr("cy", function(d) {
                            return yScale(d.ridedistM);
                        })
                    .attr("r", 0.1);
                    
                circles.sort(function(a, b) {
                        return d3.ascending(+a.seconds, +b.seconds);
                    })
                    .transition()
                    .delay(function(d, i) {
                        return i * 50;
                    })
                    .duration(100)
                    .attr("r", 6);
                                        
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(0," + (h - padding[2]) + ")")
                    .call(xAxis)
                    .append("text")
                    .attr("class","label")
                    .attr("x", 900)
                    .attr("y", -10)
                    .style("text-anchor", "end")
                    .text("ride times in minutes");     
                
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3]-100) + ",0)")
                    .call(yAxis)
                    .append("text")
                    .attr("class","label")
                    .attr("transform", "rotate(-90)")
                    .attr("y", 10)
                    .attr("x", -50)
                    .attr("dy", ".75em")
                    .style("text-anchor", "end")
                    .text(" ride distances in meters");
                                
                var gy = svg.append("g")
                         .attr("class", "x axis")
                         .attr("transform", "translate(0," + (h-padding[3] *4.8) + ")")
                         .call(t_xAxis)
                         .append("text")
                         .attr("class","label")
                         .attr("x", 875)
                         .attr("y", 18)
                         .style("text-anchor", "end")
                         .text("ride times in minutes");
        
                gy.selectAll("g").filter(function(d) { 
                        return d; 
                    })
                    .classed("minor", true);
        
                gy.selectAll("text")
                    .attr("x", 4)
                    .attr("dy",-4)
                                
                                                                                            
            });
​
​
        </script>
​
    </body>
</html>
    