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Let transform function transform all dimensions it is capable of

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This commit is contained in:
Andreas Hocevar
2022-05-02 22:25:11 +02:00
parent 626baaafa2
commit 6ace5e7530
3 changed files with 98 additions and 13 deletions
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63
test/node/ol/proj.test.js
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@@ -7,6 +7,7 @@ import {HALF_SIZE} from '../../../src/ol/proj/epsg3857.js';
import {
METERS_PER_UNIT,
addCommon,
addCoordinateTransforms,
clearAllProjections,
clearUserProjection,
disableCoordinateWarning,
@@ -776,6 +777,26 @@ describe('ol/proj.js', function () {
expect(got[2]).to.be(3);
});
it('transforms a 3d coordinate with 2-dimension transform', function () {
const latlon = new Projection({
code: 'latlon',
});
addCoordinateTransforms(
'EPSG:4326',
latlon,
function (coordinate) {
return coordinate.slice(0, 2).reverse();
},
function (coordinate) {
return coordinate.slice(0, 2).reverse();
}
);
const got = transform([-10, -20, 3], 'EPSG:4326', latlon);
expect(got).to.have.length(3);
expect(got).to.eql([-20, -10, 3]);
});
it('transforms a 4d coordinate', function () {
const got = transform([-10, -20, 3, 4], 'EPSG:4326', 'EPSG:3857');
expect(got).to.have.length(4);
@@ -805,6 +826,47 @@ describe('ol/proj.js', function () {
addCommon();
});
it('works with 3d points and proj4 defs for 3d transforms', function () {
proj4.defs(
'geocent',
'+proj=geocent +datum=WGS84 +ellps=WGS84 +units=m +no_defs'
);
register(proj4);
const got = transform(
[5584000, 2844000, 3448000],
'geocent',
'EPSG:4326'
);
expect(got).to.have.length(3);
expect(got[0]).to.roughlyEqual(26.990304649234826, 1e-9);
expect(got[1]).to.roughlyEqual(28.965718227798618, 1e-9);
expect(got[2]).to.roughlyEqual(779337.8584198505, 1e-9);
delete proj4.defs.geocent;
clearAllProjections();
addCommon();
});
it('works with 3d points and proj4 defs for 3d transforms with clamped extent', function () {
proj4.defs(
'geocent',
'+proj=geocent +datum=WGS84 +ellps=WGS84 +units=m +no_defs'
);
register(proj4);
const got = transform([-7.56234, 38.96618, 0], 'EPSG:4326', 'geocent');
expect(got).to.have.length(3);
expect(got[0]).to.roughlyEqual(4922499, 1);
expect(got[1]).to.roughlyEqual(-653508, 1);
expect(got[2]).to.roughlyEqual(3989398, 1);
delete proj4.defs.geocent;
clearAllProjections();
addCommon();
});
it('does not flip axis order', function () {
proj4.defs('enu', '+proj=longlat');
proj4.defs('neu', '+proj=longlat +axis=neu');
@@ -812,7 +874,6 @@ describe('ol/proj.js', function () {
const got = transform([1, 2], 'neu', 'enu');
expect(got).to.eql([1, 2]);
delete proj4.defs.enu;
delete proj4.defs.neu;
clearAllProjections();