D3 Examples - Tuas South Chimney

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
  <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.12.0/mapbox-gl.js'></script>
  <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.12.0/mapbox-gl.css' rel='stylesheet' />
​
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0;}
    #map { position:absolute; width: 100%; height: 100%;}
    svg { position: absolute; width: 100%; height: 100%;}
  </style>
</head>
​
<body>
  <div id="map"></div>
  <script>
  
    mapboxgl.accessToken = 'pk.eyJ1IjoibWNoZXciLCJhIjoiY2l3bzg3dGI4MDAwMjJvbXFqejRja2RyYiJ9.Dy_lwSaE1c8RcBaPZDfydw'
    var map = new mapboxgl.Map({
      style: 'mapbox://styles/mchew/ciwq91sth00162qqrfbmj8mw7',
      center: [103.64, 1.28],
      zoom: 13.5,
      pitch: 45,
      bearing:0,
      container: 'map'
    })
    map.addControl(new mapboxgl.Navigation());
​
    var container = map.getCanvasContainer()
    var svg = d3.select(container).append("svg")
function project(d) {
    return map.project(getLL(d));
    }
    function getLL(d) {
    return new mapboxgl.LngLat(+d.lon, +d.lat)
    }
  
    d3.csv("Chimney.csv", 
      function(err, data) {
      var dots = svg.selectAll("circle.dot")
        .data(data)
      
      dots.enter().append("circle").classed("dot", true)
      .attr("r", 1)
       .style({
        fill: "#0084cc",
        "fill-opacity": 0.6,
        stroke: "#004d60",
        "stroke-width": 1
      })
      .transition().duration(1000)
      .attr("r", 5)
      
      function render() {
        dots
        .attr({
          cx: function(d) { 
            var x = project(d).x;
            return x
          },
          cy: function(d) { 
            var y = project(d).y;
            return y
          },
        })
      }
            map.on("viewreset", function() {
        render()
      })
      map.on("move", function() {
        render()
      })
      render()
        })    
  </script>
</body>
    