-
Notifications
You must be signed in to change notification settings - Fork 22.9k
/
azimuthal-equidistant-test.js
63 lines (59 loc) · 2.14 KB
/
azimuthal-equidistant-test.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
require("../env");
var vows = require("vows"),
assert = require("assert");
var suite = vows.describe("d3.geo.azimuthalEquidistant");
suite.addBatch({
"azimuthalEquidistant": {
topic: function() {
return d3.geo.azimuthalEquidistant().translate([0, 0]).scale(100);
},
"origin": function(projection) {
var coords = projection([0, 0]);
assert.inDelta(coords[0], 0, 1e-6);
assert.inDelta(coords[1], 0, 1e-6);
var lonlat = projection.invert(coords);
assert.inDelta(lonlat[0], 0, 1e-6);
assert.inDelta(lonlat[1], 0, 1e-6);
},
"Arctic": function(projection) {
var coords = projection([0, 85]);
assert.inDelta(coords[0], 0, 1e-6);
assert.inDelta(coords[1], -148.352986, 1e-6);
var lonlat = projection.invert(coords);
assert.inDelta(lonlat[0], 0, 1e-6);
assert.inDelta(lonlat[1], 85, 1e-6);
},
"Antarctic": function(projection) {
var coords = projection([0, -90]);
assert.inDelta(coords[0], 0, 1e-6);
assert.inDelta(coords[1], 157.079632, 1e-6);
var lonlat = projection.invert(coords);
assert.inDelta(lonlat[0], 0, 1e-6);
assert.inDelta(lonlat[1], -90, 1e-6);
},
"Hawaii": function(projection) {
var coords = projection([-180, 0]);
assert.inDelta(coords[0], -314.159265, 1e-6);
assert.inDelta(coords[1], 0, 1e-6);
var lonlat = projection.invert(coords);
assert.inDelta(lonlat[0], -180, 1e-6);
assert.inDelta(lonlat[1], 0, 1e-6);
},
"Phillipines": function(projection) {
var coords = projection([180, 0]);
assert.inDelta(coords[0], 314.159265, 1e-6);
assert.inDelta(coords[1], 0, 1e-6);
var lonlat = projection.invert(coords);
assert.inDelta(lonlat[0], 180, 1e-6);
assert.inDelta(lonlat[1], 0, 1e-6);
},
"Inversion works for non-zero translation": function() {
var projection = d3.geo.azimuthalEquidistant().translate([123, 99]).scale(100),
coords = projection([0, 85]),
lonlat = projection.invert(coords);
assert.inDelta(lonlat[0], 0, 1e-6);
assert.inDelta(lonlat[1], 85, 1e-6);
}
}
});
suite.export(module);