Fix albers tests and inversion of North pole.

d3.js

@@ -3352,7 +3352,7 @@ d3 = function() {
     }
     forward.invert = function(x, y) {
       var ρ0_y = ρ0 - y;
-      return [ Math.atan2(x, ρ0_y) / n, Math.asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
+      return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
     };
     return forward;
   }

src/geo/conic-equal-area.js

@@ -21,7 +21,7 @@ function d3_geo_conicEqualArea(φ0, φ1) {
     var ρ0_y = ρ0 - y;
     return [
       Math.atan2(x, ρ0_y) / n,
-      Math.asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n))
+      d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n))
     ];
   };
 

test/geo/albers-test.js

@@ -13,24 +13,26 @@ suite.addBatch({
       "has the parallels 29.5°, 45.5°": function(p) {
         assert.inDelta(p.parallels(), [29.5, 45.5], 1e-6);
       },
-      "has the rotation 98°, 0°": function(p) {
-        assert.inDelta(p.rotate(), [98, 0, 0], 1e-6);
+      "has the rotation 96°, 0°": function(p) {
+        assert.inDelta(p.rotate(), [96, 0, 0], 1e-6);
       },
-      "has the center 0°, 38°": function(p) {
-        assert.inDelta(p.center(), [0, 38], 1e-6);
+      "has the center -0.6°, 38.7°": function(p) {
+        assert.inDelta(p.center(), [-.6, 38.7], 1e-6);
       },
-      "has the scale 1000": function(p) {
-        assert.inDelta(p.scale(), 1000, 1e-6);
+      "has the scale 1070": function(p) {
+        assert.inDelta(p.scale(), 1070, 1e-6);
       }
     }, {
-      "Washington, DC":    [[-120.50000000,   47.50000000], [ 215.47899724,   51.97649392]],
-      "San Francisco, CA": [[-122.42000000,   37.78000000], [ 150.07267740,  211.25782936]]
+      "Washington, DC":    [[-120.50000000,   47.50000000], [ 181.00023857,   45.12748866]],
+      "San Francisco, CA": [[-122.42000000,   37.78000000], [ 107.44485839,  214.04820561]],
+      "the North Pole":    [[   0.00000000,   90.00000000], [1062.11670525, -761.71949818]]
     }),
     "translated to 0,0 and at scale 1": projectionTestSuite({
       topic: function(projection) { return projection().translate([0, 0]).scale(1); }
     }, {
-      "Washington, DC":    [[-120.50000000,   47.50000000], [  -0.26452100,   -0.19802351]],
-      "San Francisco, CA": [[-122.42000000,   37.78000000], [  -0.32992732,   -0.03874217]]
+      "Washington, DC":    [[-120.50000000,   47.50000000], [  -0.27943903,   -0.19146964]],
+      "San Francisco, CA": [[-122.42000000,   37.78000000], [  -0.34818238,   -0.03359981]],
+      "the North Pole":    [[   0.00000000,   90.00000000], [   0.54403430,   -0.94553224]]
     })
   }
 });

test/geo/conic-equal-area-test.js

@@ -30,7 +30,7 @@ suite.addBatch({
       "Tierra del Fuego":  [[ -35.62300462,  -60.29317484], [  -0.81309535,    0.63745721]],
       "Tokyo":             [[  33.38709832,   79.49539834], [   0.22216975,   -1.44766929]],
       "the South Pole":    [[   0.00000000,  -85.00000000], [   0.00000000,    0.84251256]],
-      "the North Pole":    [[   0.00000000,   85.00000000], [   0.00000000,   -1.45376849]]
+      "the North Pole":    [[   0.00000000,   90.00000000], [   0.00000000,   -1.46410162]]
     })
   }
 });