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Make proj4 transforms behave like built-in transforms

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This commit is contained in:
Andreas Hocevar
2020-06-26 00:16:52 +02:00
parent 4758b533d0
commit bef4d8a494
4 changed files with 100 additions and 15 deletions
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19
test/spec/ol/proj.test.js
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@@ -560,6 +560,25 @@ describe('ol.proj', function () {
});
expect(getProjection('EPSG:4326')).to.equal(epsg4326);
});
it('uses safe transform functions', function () {
register(proj4);
const wgs84 = getProjection('WGS84');
const epsg4326 = getProjection('EPSG:4326');
wgs84.setExtent(epsg4326.getExtent());
wgs84.setGlobal(true);
const google = getProjection('GOOGLE');
const epsg3857 = getProjection('EPSG:3857');
google.setExtent(epsg3857.getExtent());
google.setGlobal(true);
const coord = [-190, 90];
const transformed = transform(coord, wgs84, google);
expect(transformed).to.eql(transform(coord, epsg4326, epsg3857));
const got = transform(transformed, google, wgs84);
const expected = transform(transformed, epsg3857, epsg4326);
expect(got[0]).to.roughlyEqual(expected[0], 1e-9);
expect(got[1]).to.roughlyEqual(expected[1], 1e-9);
});
});
describe('ol.proj.getTransformFromProjections()', function () {