Click here to Skip to main content
15,435,745 members
Please Sign up or sign in to vote.
1.00/5 (1 vote)
See more:
I am working on a London map visualization in d3 but I am unable to draw the graph correctly. I do not understand what mistake was in this code. Kindly Help me 


What I have tried:

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <style>
            *
            {
                font-family: "Helvetica Neue";
        
            }
            p
            {
                font-size: 0.85em;
            }
             .subunits
            {
                fill: #eeeeee;
                stroke: #333;
                stroke-width: 0.2;

            }

           
        </style>
    </head>
    <body>
        <div id="map"></div>
        <script src ="http://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script>

        <script src="http://d3js.org/topojson.v1.min.js"></script>

        <script src="p.js"></script>
    </body>
</html>




//p.js

(function() {
    var margin = { top: 0, left: 0, right: 0, bottom: 0},
        height = 400 - margin.top - margin.bottom,
        width = 800 - margin.left - margin.right;

    var svg = d3.select("#map")
             .append("svg")
             .attr("height",height + margin.top + margin.bottom)
             .attr("width", width + margin.left + margin.right)
             .append("g")
             .attr("transform","translate(" + margin.left + "," + margin.top + ")");


  

    d3.queue()
    .defer(d3.json,"london_boroughs.geojson")
    .await(ready)

 

    var projection= d3.geoAlbers()
    .center([10.5, 55.2])
    .rotate([8, 0])
    .parallels([0, 15])
    .scale(3300)
    .translate([width / 2, height / 2]);

    var path = d3.geoPath()
        .projection(projection)

    
    function ready(error,data,london_stations)
    {
       
        console.log(data.features)

        svg.selectAll(".subunits")
        .data(data.features)
        .enter().append("path")
        .attr("class","subunits")
        .attr("d",path)
        


    }
    
})();
Posted

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)



CodeProject, 20 Bay Street, 11th Floor Toronto, Ontario, Canada M5J 2N8 +1 (416) 849-8900