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Add ol.Sphere#interpolate

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Tom Payne
2014-03-18 15:12:59 +01:00
parent 088a748d70
commit 0b5f0d0c8e
2 changed files with 56 additions and 0 deletions
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test/spec/ol/sphere/sphere.test.js
+20
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@@ -227,6 +227,26 @@ describe('ol.Sphere', function() {
});
describe('interpolate', function() {
it('results match at the start, midpoint, and end', function() {
var e, i;
for (i = 0; i < expected.length; ++i) {
e = expected[i];
var c1 = sphere.interpolate(e.c1, e.c2, 0);
expect(c1[0]).to.roughlyEqual(e.c1[0], 1e-9);
expect(c1[1]).to.roughlyEqual(e.c1[1], 1e-9);
var midpoint = sphere.interpolate(e.c1, e.c2, 0.5);
expect(midpoint[0]).to.roughlyEqual(e.midpoint[0], 1e-9);
expect(midpoint[1]).to.roughlyEqual(e.midpoint[1], 1e-9);
var c2 = sphere.interpolate(e.c1, e.c2, 1);
expect(c2[0]).to.roughlyEqual(e.c2[0], 1e-9);
expect(c2[1]).to.roughlyEqual(e.c2[1], 1e-9);
}
});
});
describe('midpoint', function() {
it('results match Chris Veness\'s reference implementation', function() {