mbostock · October 21, 2018 21:39
diff --git a/.block b/.block
 license: gpl-3.0
 redirect: https://beta.observablehq.com/@mbostock/d3-conic-conformal
diff --git a/README.md b/README.md
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <meta charset="utf-8">
 <svg width="960" height="500"></svg>
 <script src="https://d3js.org/d3.v4.min.js"></script>
 <script src="https://d3js.org/topojson.v2.min.js"></script>
 <script>

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

 var projection = d3.geoConicConformal();

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

 svg.append("path")
    .attr("id", "graticule")
    .attr("fill", "none")
    .attr("stroke", "#777")
    .attr("stroke-width", 0.5)
    .attr("stroke-opacity", 0.5)
    .attr("d", path(d3.geoGraticule10()));

 svg.append("path")
    .attr("fill", "none")
    .attr("stroke", "#000")
    .attr("d", path({type: "Sphere"}));

 d3.json("https://d3js.org/world-50m.v1.json", function(error, world) {
  if (error) throw error;

  svg.insert("path", "#graticule")
      .datum(topojson.feature(world, world.objects.land))
      .attr("fill", "#222")
      .attr("d", path);

  svg.insert("path", "#graticule")
      .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
      .attr("fill", "none")
      .attr("stroke", "#fff")
      .attr("stroke-width", 0.5)
      .attr("d", path);
 });

 </script>
diff --git a/preview.jpg b/preview.jpg
diff --git a/thumbnail.png b/thumbnail.png
	license: gpl-3.0
	redirect: https://beta.observablehq.com/@mbostock/d3-conic-conformal
	<!DOCTYPE html>
	<meta charset="utf-8">
	<svg width="960" height="500"></svg>
	<script src="https://d3js.org/d3.v4.min.js"></script>
	<script src="https://d3js.org/topojson.v2.min.js"></script>
	<script>

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

	var projection = d3.geoConicConformal();

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

	svg.append("path")
	.attr("id", "graticule")
	.attr("fill", "none")
	.attr("stroke", "#777")
	.attr("stroke-width", 0.5)
	.attr("stroke-opacity", 0.5)
	.attr("d", path(d3.geoGraticule10()));

	svg.append("path")
	.attr("fill", "none")
	.attr("stroke", "#000")
	.attr("d", path({type: "Sphere"}));

	d3.json("https://d3js.org/world-50m.v1.json", function(error, world) {
	if (error) throw error;

	svg.insert("path", "#graticule")
	.datum(topojson.feature(world, world.objects.land))
	.attr("fill", "#222")
	.attr("d", path);

	svg.insert("path", "#graticule")
	.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
	.attr("fill", "none")
	.attr("stroke", "#fff")
	.attr("stroke-width", 0.5)
	.attr("d", path);
	});

	</script>