D3 Examples - Assignment Week 4

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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;
            }           
        
            .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; 
            }
            
            .y.axis path,
            .y.axis line {
                opacity: 0;
            }   
    
            
            div {text-align:left; width:600px; font-size:16px; color: #000000;
                font-weight:bold; padding-left:200px; padding-bottom:10px;
                padding-top:10px; 
            }
        
        </style>        
    </head>
    <body>
    
        
        <h1>Chicago Divvy BikeShare</h1>
        
        <script type="text/javascript" >
        
        var w = 800;
        var h = 700;
        var padding = [20, 10, 20, 200];
        
        
        var widthScale = d3.scale.linear()
                            .range([ 0, w - padding[0] - padding[3] ]);
                            
        var heightScale = d3.scale.ordinal()
                            .rangeBands([ padding[0], h - padding[2] ],.1);
        
        
        var xAxis = d3.svg.axis()
                    .scale(widthScale)
                    .orient("bottom")
                    .ticks(5);
​
        var t_xAxis = d3.svg.axis()
                    .scale(widthScale)
                    .orient("top")
                    .ticks(5);
​
        var yAxis = d3.svg.axis()
                        .scale(heightScale)
                        .orient("left");
        
        var dist = "Originating Loop station location, trip distances in meters.";
        
​
                
        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.sort(function(a, b) {
                    return d3.descending(+a.ridedistM, b.ridedistM);
                });
    
​
                data = data.filter(function(d){
                    return d.ridedistM < 20000 && d.start_zone == "West Loop";
                });
​
                widthScale.domain([ 0, d3.max(data, function(d) {return +d.ridedistM;
                })]);
                
                
                heightScale.domain(data.map(function(d) { return d.from_station_name; 
                }));
​
                
                var rects = svg.selectAll("rect")
                                .data(data)
                                .enter()
                                .append("rect")
                                .attr("fill", "#00B2EE")
                                .on("mouseover", function(d) {
                                    d3.select(this)
                                    .attr("fill", "orange");
                                    })
                                .on("mouseout", function(d) {
                                    d3.select(this)
                                    .transition()
                                    .duration(250)
                                    .attr("fill","#00B2EE");
                                    });
                                
                rects.attr("x", padding[3])
                    .attr("y", function(d) {
                        return heightScale(d.from_station_name);
                    })
                    .attr("width", function(d) {
                        return widthScale(d.ridedistM); 
                    })
                    .attr("height", heightScale.rangeBand())
                    .append("title")
                    .text(function(d) {
                        return "en route:" + d.to_station_name + " , "+ "distance:"  + d.ridedistM;
                        });
                    
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
                    .call(xAxis);       
                
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3] - 25) + ", 2)")
                    .call(yAxis);
                                
                var gy = svg.append("g")
                         .attr("class", "x axis")
                         .attr("transform", "translate(" + padding[3] + "," + (h-padding[3] *3.39) + ")")
                         .call(t_xAxis);
        
                gy.selectAll("g").filter(function(d) { 
                        return d; 
                    })
                    .classed("minor", true);
        
                gy.selectAll("text")
                    .attr("x", 4)
                    .attr("dy",-4)
                                
                                                                                            
            });
​
​
        </script>
​
    </body>
</html>
    