Labelled graticules (d3v4) [UNLISTED]

forked from vigorousnorth's block: Labelled graticules

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

<style>

.graticule {
  fill: none;
  stroke: #000;
}

.graticule.outline {
  stroke-width: 2px;
}

.label {
  font: 300 9px "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-anchor: end;
}

</style>
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/d3-geo-projection.v1.min.js"></script>
<script>

var width = 960,
    height = 480;

var projection = d3.geoWinkel3()
    .scale(145)
    .translate([width / 2, height / 2])
    .precision(.1);

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

var graticule = d3.geoGraticule();

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

svg.selectAll("path")
	.data(graticule.lines())
	.enter().append("path")
		.attr("class", "graticule line")
		.attr("id", function(d) {
      var c = d.coordinates;
			if (c[0][0] == c[1][0]) {
				return (c[0][0] < 0) ? -c[0][0] + "W" : +c[0][0] + "E";
			}
			else if (c[0][1] == c[1][1]) {
				return (c[0][1] < 0) ? -c[0][1] + "S" : c[0][1] + "N";
			}
			})
		.attr("d", path);

svg.selectAll('text')
.data(graticule.lines())
	.enter().append("text")
	.text(function(d) {
      var c = d.coordinates;
			if ((c[0][0] == c[1][0]) && (c[0][0] % 30 == 0)) {return (c[0][0]);}
			else if (c[0][1] == c[1][1]) {return (c[0][1]);}
		})
	.attr("class","label")
	.attr("style", function(d) {
      var c = d.coordinates;
      return (c[0][1] == c[1][1]) ? "text-anchor: end" : "text-anchor: middle";
   })
	.attr("dx", function(d) {
      var c = d.coordinates;
      return (c[0][1] == c[1][1]) ? -10 : 0;
  })
	.attr("dy", function(d) {
      var c = d.coordinates;
      return (c[0][1] == c[1][1]) ? 4 : 10;
  })
	.attr('transform', function(d) {
    var c = d.coordinates;
		return ('translate(' + projection(c[0]) + ')')
	});

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

</script>

Modified http://d3js.org/d3.v4.min.js to a secure url

Modified http://d3js.org/d3-geo-projection.v1.min.js to a secure url

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

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