d3 module 4

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>EU Migration Crisis</title>
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
    <script src="https://d3js.org/topojson.v1.min.js"></script>
    <link href="https://fonts.googleapis.com/css?family=Roboto+Condensed:300normal,300italic,400normal,400italic,700normal,700italic|Roboto:400normal|Open+Sans:400normal|Oswald:400normal|Lato:400normal|Roboto+Slab:400normal|Open+Sans+Condensed:300normal|Source+Sans+Pro:400normal|Raleway:400normal|PT+Sans:400normal|Ubuntu:400normal&subset=all" rel="stylesheet" type="text/css">
    <style type="text/css">

body {
        background-color: #fff1e0;
        margin-top: 3em;
        font-family: 'Roboto Condensed', sans-serif;
        font-weight: 400;
      }

svg {
        background-color: #ecf8fe;
      }
      
      h1 {
        font-weight: 300;
        font-size: 36px;
        color: #333333;
        margin-top: 0;
        margin-bottom: 0;
        margin-left: -2px;
      }
      h6 {
        font-size: 12px;
        margin-bottom: 0.2em;
        margin-top: 6px;
        font-weight: 800;
        text-transform: uppercase;
        color: #af516c;
      }
      .contentHolder {
        background: #fff9f1;
        padding: 20px 20px 14px;
        width: 640px;
        box-sizing: border-box;
        margin: 0 auto;
        box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
        position: relative;
      }
      
      .coast {
        stroke: #a7a592;
        fill: none;
        stroke-width: 1px;
      }

.schengen-yes {
        fill: #bddacd;
      }
      .schengen-no {
        fill: #dfb3ae;
      }

.subjectCountry{
        font-weight: 700;
        font-size: 1.5em;
        fill: #706F6F;
        letter-spacing: 2px;
      }
      .place-label {
        font-size: 11px;
        text-transform: uppercase;
        text-anchor: middle;
        fill: #74736c
      }
      .subject.place-label {
        font-weight: 800;
        font-size: 14px;
        fill: #000000;
      }
      .legendLabel {
        font-size: 13px;
      }
      .border {
        stroke-linejoin: round;
        stroke-linecap: round;
      }
      .border.additional {
        stroke: #000000;
        stroke-width: 3px;
      }
      .border.partial {
        stroke: #f26522;
        stroke-width: 3px;
      }
      .border.fence {
        stroke: #ad1c21;
        stroke-width: 3px;
      }
      .disputed {
        stroke: #a7a592;
        stroke-width: 1px;
        stroke-dasharray:1, 2;
        fill: none;
      }
      .arrowsHolder{
        position: absolute;
        bottom: 28px;
        left: 12px;
        opacity: 0;
      }
      .relief {
        position: absolute;
        bottom: 25px;
        left: 20px;
        opacity: 0;
      }
      .refugees circle, .legend.refugees {
        fill: #af516c;
        fill-opacity: 0;
        stroke: #af516c;
        stroke-width: 1px;
      }
      .refugees text{
        font-weight: 400;
        text-anchor: middle;
        fill: #ffffff;
        font-size: 13px;
        letter-spacing: 1px;
        opacity: 0;
      }
      .source {
        font-size: 11px;
      }
    </style>
  </head>
  <body>

<div class="contentHolder">
    <h6>EU Migration Crisis</h6>
    <h1>How many refugees enter the EU via the Western Balkans route?</h1>
    <p>Over the summer of 2015, an increasing number of migrants and asylum seekers escaping war, take the Western Balkans route, which stretches from Greece to northern Europe</p>
    <div class="arrowsHolder"><img src="https://image.webservices.ft.com/v1/images/raw/ftcms:39099228-9130-11e5-bd82-c1fb87bef7af?source=test" alt=""></div>
    
    <div class="mapHolder"></div>
    <div class="source">Source: UNHCR; Acaps</div>
  </div>
    <script type="text/javascript">

//Width and height
      var w = 600;
      var h = 689;

//Define map projection
      var projection = d3.geo.mercator()
                   .center([17.5, 47.4 ])
                   .translate([ w/2, h/2 ])
                   .scale([ w * 2.0]);

//Define path generator
      var path = d3.geo.path()
               .projection(projection);

//Create SVG
      var svg = d3.select('.mapHolder')
            .append('svg')
            .attr('width', w)
            .attr('height', h)
            .attr('opacity', 0)

var numFormat = d3.format(',')

//Load in GeoJSON data
      d3.json('eumigration.json', function(migration) {
        
        // //Bind data and create one path per GeoJSON feature
        var countryFills = svg.append('g');
        var relief = svg.append('g');
        var coast = svg.append('g');
        var boundaryLines = svg.append('g');
        var disputed = svg.append('g');
        var refugees = svg.append('g');
        var countryNames = svg.append('g');
        var legend = svg.append('g');

countryFills.selectAll('path')
           .data(topojson.feature(migration, migration.objects.countries).features)
           .enter()
           .append('path')
           .attr({
            'd': path,
            'id': function(d) { return d['SOV_A3']; },
            'class': 'country',
            // 'opacity': 0.6,
            'fill': function(d) { 
              if(d.properties.schengen === 'yes') { 
                return '#bddacd'
              } else if (d.properties.schengen === 'no'){ 
                return '#dfb3ae'; 
              } else {
                return '#f8f7f4';
              }
            },
           });

boundaryLines.selectAll('path')
           .data(topojson.feature(migration, migration.objects.boundaries).features)
           .enter()
           .append('path')
           .attr({
            'd': path,
            'id': function(d) { return d['SOV_A3']; },
            'class': function(d) { return 'boundary ' + d.properties.type; },
            // 'fill-opacity': 0.4,
            'fill': 'none',
            'stroke-width': function(d) { 
              if(d.properties.type === 'additional' || d.properties.type === 'fence' || d.properties.type === 'partial') { 
                return 3;
              } else {
                return 1;
              }
              },
            'stroke': '#a7a592',
            'stroke-linejoin': 'round',
            'stroke-linecap': 'round',
            'stroke-width': '1px'
           })
           .transition().delay(5000).duration(1000).attr('stroke',

function(d) { 
                  if(d.properties.type === 'additional') { 
                    return '#000000'
                  } else if (d.properties.type === 'fence'){ 
                    return '#ad1c21'; 
                  } else if (d.properties.type === 'partial'){ 
                    return '#f26522'; 
                  } else {
                    return '#a7a592';
                  }
                }
            ).attr('stroke-width', 
                function(d) { 
                  if(d.properties.type === 'additional') { 
                    return 3
                  } else if (d.properties.type === 'fence'){ 
                    return 3; 
                  } else if (d.properties.type === 'partial'){ 
                    return 3; 
                  } else {
                    return 1;
                  }
                }
            );

d3.selectAll('.additional').transition().delay(8000).duration(500).style('opacity', 0.3);
        d3.selectAll('.partial').transition().delay(8000).duration(500).style('opacity', 0.3);
        d3.selectAll('.fence').transition().delay(8000).duration(500).style('opacity', 0.3);

countryNames.selectAll('.place-label')
            .data(topojson.feature(migration, migration.objects.clabels).features)
            .enter().append('text')
            .attr('class', 
              function(d) { 
                if(d.properties.feature === 'yes') {
                  return 'subject place-label';
                } else {
                  return  'place-label';
                }
              })
            .attr('transform', function(d) { return 'translate(' + projection(d.geometry.coordinates) + ')'; })
            .text(function(d) { return d.properties.name; });

disputed.selectAll('path')
           .data(topojson.feature(migration, migration.objects.disputed).features)
           .enter()
           .append('path')
           .attr({
            'd': path,
            'class': 'disputed'
            })
        
        coast.selectAll('path')
           .data(topojson.feature(migration, migration.objects.ocean).features)
           .enter()
           .append('path')
           .attr({
            'd': path,
            'class': 'coast'
            })

// add circle groups for refugee numbers
        var refugeeData = refugees.selectAll('g')
               .data(topojson.feature(migration, migration.objects.refugees).features)
               .enter()
               .append('g')
               .attr({
                'class': 'refugees'
                })
               .attr('transform', function(d) { return 'translate(' + projection(d.geometry.coordinates) + ')'; });

//add circles
        refugeeData.append('circle')
          // .attr('r', function(d) { return Math.sqrt(d.properties.refugees) / Math.PI / 8; })
          .attr('r', 0)
          .transition().delay(function(d, i) { return (i * 50) + 9000 ; }).duration(500).attr('r', function(d) { return Math.sqrt(d.properties.refugees) / Math.PI / 5; }).style('fill-opacity', 0.7);

//add data values
        refugeeData.append('text')
          .text(function(d) { return numFormat(d.properties.refugees); })
          .attr('dy', 6)
          .transition().delay(function(d, i) { return (i * 50) + 9000 ; }).duration(500).style('opacity', 1);;

legend.attr('transform', 'translate(' + (w - 200) + ',' + 10 + ')')
        
        legend.append('rect')
              .attr({
                'width': 190,
                'height': 150,
                'fill': '#ffffff',
                'opacity': 0
              })
              .transition().delay(1000).duration(500).attr('opacity', 1);

var borders = legend.append('g');

borders
          .attr('transform', 'translate(' + 10 + ',' + 50 + ')')
          .attr('opacity', 0)

borders.append('line')
          .attr({
            'x1': 0,
            'x2': 30,
            'y1': 5,
            'y2': 5,
            'class': 'border additional'
            })

borders.append('line')
          .attr({
            'x1': 0,
            'x2': 30,
            'y1': 25,
            'y2': 25,
            'class': 'border fence'
            })
        
        borders.append('line')
          .attr({
            'x1': 0,
            'x2': 30,
            'y1': 45,
            'y2': 45,
            'class': 'border partial'
            })

borders.append('text')
          .attr('class', 'legendLabel')
          .attr('transform', 'translate(' + 35 + ',' + 10 + ')')
          .text('Additional border controls')

borders.append('text')
          .attr('class', 'legendLabel')
          .attr('transform', 'translate(' + 35 + ',' + 30 + ')')
          .text('Fences')
        
        borders.append('text')
          .attr('class', 'legendLabel')
          .attr('transform', 'translate(' + 35 + ',' + 50 + ')')
          .text('Partial fences planned')
        
        borders
          .transition().delay(5000).duration(1000).attr('opacity', 1);
        
        legend.append('rect')
              .attr('transform', 'translate(' + 10 + ',' + 10 + ')')
              .attr({
                'width': 30,
                'height': 10,
                'class': 'legend schengen-yes',
                'opacity': 0
              })
              .transition().delay(1000).duration(800).attr('opacity', 1);

legend.append('rect')
              .attr('transform', 'translate(' + 10 + ',' + 30 + ')')
              .attr({
                'width': 30,
                'height': 10,
                'class': 'legend schengen-no',
                'opacity': 0
              })
              .transition().delay(1000).duration(800).attr('opacity', 1);

legend.append('circle')
              .attr('transform', 'translate(' + 25 + ',' + 125 + ')')
              .attr({
                'r': 15,
                'class': 'legend refugees',
                'opacity': 0
              })
              .transition().delay(9000).duration(800).attr('opacity', 1).style('fill-opacity', 0.7);

legend.append('text')
              .attr('transform', 'translate(' + 45 + ',' + 20 + ')')
              .attr('class', 'legendLabel')
              .attr('opacity', 0)
              .text('Schengen countries')
              .transition().delay(1000).duration(800).attr('opacity', 1);

legend.append('text')
              .attr('transform', 'translate(' + 45 + ',' + 40 + ')')
              .attr('class', 'legendLabel')
              .attr('opacity', 0)
              .text('Non-Schengen countries')
              .transition().delay(1000).duration(800).attr('opacity', 1);

var legendRefugeeLabel = legend.append('text')
              .attr('transform', 'translate(' + 45 + ',' + 122 + ')')
              .attr('class', 'legendLabel')
              .attr('opacity', 0);
              
        legendRefugeeLabel.append('tspan')
          .text('Estimated arrivals');

legendRefugeeLabel.append('tspan')
          .text('since Sept 1 2015')
          .attr('x', 0)
          .attr('y', 15);

// <image xlink:href="firefox.jpg" x="0" y="0" height="50px" width="50px"/>

relief.append('image')
          .attr({
            'xlink:href': 'https://image.webservices.ft.com/v1/images/raw/ftcms:ccbe9dec-9135-11e5-bd82-c1fb87bef7af?source=test',
            'width': 600,
            'height': 690
          })

/* transitions*/
        svg.transition().delay(200).duration(800).attr('opacity', 1);
        // d3.select('.arrowsHolder').transition().delay(3000).duration(800).attr('opacity', 1);
        d3.select('.arrowsHolder').transition().delay(3000).duration(800).style('opacity', 1);
        d3.select('.arrowsHolder').transition().delay(7000).duration(800).style('opacity', 0.3);
        legendRefugeeLabel.transition().delay(9000).duration(800).attr('opacity', 1);

});

</script>
  
  </body>
</html>

Modified http://d3js.org/topojson.v1.min.js to a secure url

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js

https://d3js.org/topojson.v1.min.js