Invitations Links Map by curran

index.html

<!DOCTYPE html>
<meta charset="utf-8">
<style>

.graticule {
  fill: none;
  stroke: #777;
  stroke-width: .5px;
  stroke-opacity: .5;
}

.land {
  fill: #222;
}

.boundary {
  fill: none;
  stroke: #fff;
  stroke-width: .5px;
}

</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>

var width = 960,
    height = 480,
    userColor = "orange",
    userSize = 4,
    linkColor = "orange";

var projection = d3.geo.equirectangular()
    .scale(153)
    .translate([width / 2, height / 2])
    .precision(.1);

var path = d3.geo.path()
    .projection(projection);

var graticule = d3.geo.graticule();

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

svg.append("path")
    .datum(graticule)
    .attr("class", "graticule")
    .attr("d", path);

d3.json("https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/world-50m.json", function(error, world) {
  if (error) throw error;

  svg.insert("path", ".graticule")
      .datum(topojson.feature(world, world.objects.land))
      .attr("class", "land")
      .attr("d", path);

  svg.insert("path", ".graticule")
      .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
      .attr("class", "boundary")
      .attr("d", path);

  d3.csv("invitation_chain.csv", type, function (data){
    
    svg.selectAll("circle").data(data).enter().append("circle")
      .attr("r", userSize)
      .attr("fill", userColor)
      .attr("cx", function (d){ return d.projected[0]; })
      .attr("cy", function (d){ return d.projected[1]; });
    
    var links = generateLinks(data);
    
    svg.selectAll("line").data(links).enter().append("line")
      .attr("r", 4)
      .attr("stroke", linkColor)
      .attr("stroke-width", "1px")
      .attr("x1", function (d){ return d.projected[0]; })
      .attr("y1", function (d){ return d.projected[1]; })
      .attr("x2", function (d){ return d.projected_invited_by[0]; })
      .attr("y2", function (d){ return d.projected_invited_by[1]; });
  });
});
function type(d){
  
  // This should actually be [d.longitude, d.latitude]
  // It looks like these are reversed in the data.
  d.projected = projection([d.latitude, d.longitude]);
  return d;
}

function generateLinks(data){
  locationsByUser = {};
  data.forEach(function (d){
    locationsByUser[d.user_name] = d.projected;
  });
  
  return data.filter(function (d){
    return d.invited_by_user_name;
  }).map(function (d){
    d.projected_invited_by = locationsByUser[d.invited_by_user_name];
    //console.log(d.projected_invited_by);
    return d;
  });
}
  
d3.select(self.frameElement).style("height", height + "px");

</script>

invitation_chain.csv

person_name,city,longitude,latitude,user_name,invited_by_user_name,date_joined
Chini,Lima,-12.111062,-77.031591,Chini,,1448760609
Manin,Selaya,43.217365,-3.807661,Manin,Chini,1448820431
Sonia,Madrid,40.416775,-3.703790,Sonia,Manin,1448906609
Alisa,Berlin,52.501939,13.419998,Alisa,Sonia,1449383312
Maria,Esles,43.282646,-3.805119,Maria,Alisa,1449529704
Lippe,Esles,43.282646,-3.805119,Lippe,Maria,1449712220
Farid,Prague,50.075538,14.437800,Farid,Lippe,1449748992
Hordur,Reykjavik,64.126521,-21.817439,Hordur,Farid,1449868421
Nona,Athens,37.944072,23.726570,Nona,Hordur,1449886264
Kathleen,Bern,46.947974,7.447447,Kathleen,Nona,1450260248
Flo,Munich,48.201196,11.614568,Flo,Kathleen,1450267096
Inaki,Santander,43.462306,-3.809980,Inaki,Flo,1450306735
Melissa,Kapaa,22.088139,-159.337982,Melissa,Inaki,1450437055
Charlie,Boo de Guarnizo,43.412077,-3.843160,Charlie,Melissa,1450675859
Xavi,Tarragona,41.118883,1.244491,Xavi,Charlie,1450852289
Shannon,Bothell,47.762320,-122.205403,Shannon,Xavi,1450916416
Canan,Brussels,50.850340,4.351710,Canan,Shannon,1450992330
Elisa,Berlin,52.487600,13.438030,Elisa,Canan,1451287788
Barbara,Recife,-8.057838,-34.882897,Barbara,Elisa,1451903727
Franca,Munich,48.135125,11.581981,Franca,Barbara,1451979271
Scott,Lausanne,46.519653,6.632273,Scott,Franca,1452037361
Benji,Dublin,53.349805,-6.260310,Benji,Scott,1452052412
Baba,Garching,48.252050,11.659620,Baba,Benji,1452111282
Janet,London,51.507351,-0.127758,Janet,Baba,1452119239
Kelsey,Los Angeles,34.052234,-118.243685,Kelsey,Janet,1452157676
Megan,Seattle,47.606209,-122.332071,Megan,Kelsey,1452232529
Viktoria,Lugansk,48.574041,39.307815,Viktoria,Megan,1452445134
Matthias,Berlin,52.483810,13.440940,Matthias,Viktoria,1453061872
Eric,Nice,43.710173,7.261953,Eric,Matthias,1453194221
Soern,Oslo,59.913869,10.752245,Soern,Eric,1453257390
Angela,Mytilene,39.106738,26.557275,Angela,Soern,1453332443
Nassos,Kiel,54.347260,10.134514,Nassos,Angela,1453365451
Katya,Moscow,55.755826,37.617300,Katya,Nassos,1453851367
Xenia,Kiev,50.450100,30.523400,Xenia,Katya,1454006641
Patricia,Bucharest,44.426767,26.102538,Patricia,Xenia,1454008636
Katie,Sydney,-33.867487,151.206990,Katie,Patricia,1454123563
Fio,Lima,-12.046374,-77.042793,Fio,Katie,1454199445
Wolle,Cologne,50.937531,6.960279,Wolle,Fio,1454263756
Guille,Barcelona,41.385064,2.173403,Guille,Wolle,1454267750
Lorenzo,Turin,45.070312,7.686856,Lorenzo,Guille,1454398699
Tom,Washington D.C,38.907192,-77.036871,Tom,Lorenzo,1454505741
Sully,Istanbul,41.008238,28.978359,Sully,Tom,1454663315
Rafo,Lima,-12.143727,-77.019023,Rafo,Sully,1454720278
Ruth,Madrid,40.416775,-3.703790,Ruth,Rafo,1454829329
Stephanie,Honolulu,21.313149,-158.008999,Stephanie,Ruth,1454962518
Grisha,Moscow,55.755826,37.617300,Grisha,Stephanie,1455176916
Bill,Elko,40.832421,-115.763123,Bill,Grisha,1455258388
Ethna,Berlin,52.520007,13.404954,Ethna,Bill,1455312885
Christos,Brighton,50.822530,-0.137163,Christos,Ethna,1455841414
Maureen,Kiel,54.337072,10.135699,Maureen,Christos,1455922500