geo projections: part 2

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

/*body {
  stroke: #7D9EFF;
  margin: 0;
}*/

.stroke {
  fill: none;
  stroke: #DC9E3F;
  stroke-width: 3px;

}

.fill {
  fill: #59A985 ;
}

.graticule {
  fill: none;
  stroke: #F5DD7B;
  stroke-width: 0.5px;
  stroke-opacity: 0.5;
}

.land {
  fill:#FBB448 ;
}

.boundary {
  fill: none;
  stroke: #A91D1D;
  stroke-width: 0.5px;
}

</style>
<svg width="960" height="600"></svg>
<script src="//d3js.org/d3.v4.min.js"></script>
<script src="//d3js.org/d3-geo-projection.v1.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>

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

// var projection =  d3.geoModifiedStereographicLee()
//     .translate([width / 2, height/ 2]);
//
// var projection = d3.geoInterrupt(d3.geoSinusoidalRaw,
//       [[ // northern hemisphere
//         [[-180,   0], [-110,  90], [ -40,   0]],
//         [[ -40,   0], [   0,  90], [  40,   0]],
//         [[  40,   0], [ 110,  90], [ 180,   0]]
//       ], [ // southern hemisphere
//         [[-180,   0], [-110, -90], [ -40,   0]],
//         [[ -40,   0], [   0, -90], [  40,   0]],
//         [[  40,   0], [ 110, -90], [ 180,   0]]
//       ]])
//     .rotate([-20, 0])
//     .scale(152.63)
//     .translate([width / 2, height / 2])
//     .precision(0.1);

var projection = d3.geoAiry()

var graticule = d3.geoGraticule();

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

var defs = svg.append("defs");

defs.append("path")
    .datum({type: "Sphere"})
    .attr("id", "sphere")
    .attr("d", path);

defs.append("clipPath")
    .attr("id", "clip")
  .append("use")
    .attr("xlink:href", "#sphere");

svg.append("use")
    .attr("class", "stroke")
    .attr("xlink:href", "#sphere");

svg.append("use")
    .attr("class", "fill")
    .attr("xlink:href", "#sphere");

svg.append("path")
    .datum(graticule)
    .attr("class", "graticule")
    .attr("clip-path", "url(#clip)")
    .attr("d", path);

d3.json("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("clip-path", "url(#clip)")
      .attr("d", path);

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

</script>

https://d3js.org/d3.v4.min.js

https://d3js.org/d3-geo-projection.v1.min.js

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