diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/test/geo/azimuthal-test.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/geo/azimuthal-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,261 @@
+require("../env");
+require("../../d3");
+require("../../d3.geo");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.geo.azimuthal");
+
+suite.addBatch({
+  "azimuthal.stereographic": {
+    topic: function() {
+      return d3.geo.azimuthal().mode("stereographic").translate([0, 0]).scale(100);
+    },
+    "origin": function(azimuthal) {
+      var coords = azimuthal([0, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Arctic": function(azimuthal) {
+      var coords = azimuthal([0, 85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], -91.633117, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "Antarctic": function(azimuthal) {
+      var coords = azimuthal([0, -85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 91.633117, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], -85, 1e-6);
+    },
+    "Hawaii": function(azimuthal) {
+      var coords = azimuthal([-180, 0]);
+      assert.equal(coords[0], -Infinity);
+      assert.isTrue(isNaN(coords[1]));
+    },
+    "Phillipines": function(azimuthal) {
+      var coords = azimuthal([180, 0]);
+      assert.equal(coords[0], Infinity);
+      assert.isTrue(isNaN(coords[1]));
+    },
+    "Inversion works for non-zero translation": function() {
+      var azimuthal = d3.geo.azimuthal().mode("stereographic").translate([123, 99]).scale(100),
+          coords = azimuthal([0, 85]),
+          lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    }
+  },
+  "azimuthal.orthographic": {
+    topic: function() {
+      return d3.geo.azimuthal().mode("orthographic").translate([0, 0]).scale(100);
+    },
+    "origin": function(azimuthal) {
+      var coords = azimuthal([0, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Arctic": function(azimuthal) {
+      var coords = azimuthal([0, 85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], -99.619469, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "Antarctic": function(azimuthal) {
+      var coords = azimuthal([0, -85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 99.619469, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], -85, 1e-6);
+    },
+    "Hawaii": function(azimuthal) {
+      var coords = azimuthal([-180, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Phillipines": function(azimuthal) {
+      var coords = azimuthal([180, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Inversion works for non-zero translation": function() {
+      var azimuthal = d3.geo.azimuthal().mode("orthographic").translate([123, 99]).scale(100),
+          coords = azimuthal([0, 85]),
+          lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    }
+  },
+  "azimuthal.gnomonic": {
+    topic: function() {
+      return d3.geo.azimuthal().mode("gnomonic").translate([0, 0]).scale(100);
+    },
+    "origin": function(azimuthal) {
+      var coords = azimuthal([0, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Arctic": function(azimuthal) {
+      var coords = azimuthal([0, 85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], -1143.005230, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "Antarctic": function(azimuthal) {
+      var coords = azimuthal([0, -85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 1143.005230, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], -85, 1e-6);
+    },
+    "Hawaii": function(azimuthal) {
+      var coords = azimuthal([-180, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Phillipines": function(azimuthal) {
+      var coords = azimuthal([180, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Inversion works for non-zero translation": function() {
+      var azimuthal = d3.geo.azimuthal().mode("stereographic").translate([123, 99]).scale(100),
+          coords = azimuthal([0, 85]),
+          lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    }
+  },
+  "azimuthal.equidistant": {
+    topic: function() {
+      return d3.geo.azimuthal().mode("equidistant").translate([0, 0]).scale(100);
+    },
+    "origin": function(azimuthal) {
+      var coords = azimuthal([0, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Arctic": function(azimuthal) {
+      var coords = azimuthal([0, 85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], -148.352986, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "Antarctic": function(azimuthal) {
+      var coords = azimuthal([0, -90]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 157.079632, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], -90, 1e-6);
+    },
+    "Hawaii": function(azimuthal) {
+      var coords = azimuthal([-180, 0]);
+      assert.inDelta(coords[0], -314.159265, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], -180, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Phillipines": function(azimuthal) {
+      var coords = azimuthal([180, 0]);
+      assert.inDelta(coords[0], 314.159265, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 180, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Inversion works for non-zero translation": function() {
+      var azimuthal = d3.geo.azimuthal().mode("stereographic").translate([123, 99]).scale(100),
+          coords = azimuthal([0, 85]),
+          lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    }
+  },
+  "azimuthal.equalarea": {
+    topic: function() {
+      return d3.geo.azimuthal().mode("equalarea").translate([0, 0]).scale(100);
+    },
+    "origin": function(azimuthal) {
+      var coords = azimuthal([0, 0]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 0, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Arctic": function(azimuthal) {
+      var coords = azimuthal([0, 85]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], -135.118041, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "Antarctic": function(azimuthal) {
+      var coords = azimuthal([0, -90]);
+      assert.inDelta(coords[0], 0, 1e-6);
+      assert.inDelta(coords[1], 141.421356, 1e-6);
+      var lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 180, 1e-6);
+      assert.inDelta(lonlat[1], -90, 1e-6);
+    },
+    "Hawaii": function(azimuthal) {
+      var coords = azimuthal([-180, 0]);
+      assert.equal(coords[0], -Infinity);
+      assert.isTrue(isNaN(coords[1]));
+    },
+    "Phillipines": function(azimuthal) {
+      var coords = azimuthal([180, 0]);
+      assert.equal(coords[0], Infinity);
+      assert.isTrue(isNaN(coords[1]));
+    },
+    "Inversion works for non-zero translation": function() {
+      var azimuthal = d3.geo.azimuthal().mode("stereographic").translate([123, 99]).scale(100),
+          coords = azimuthal([0, 85]),
+          lonlat = azimuthal.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    }
+  }
+});
+
+suite.export(module);