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Avoid unnecessary transform in MVT format

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When using ol.render.Feature there was a mandatory geometry transform.

With this change it is now easy to read features directly in the native tile projection.
Since there is no needed transform, there is no need either to define an extent and a world extent, for that use-case.
This commit is contained in:
Guillaume Beraudo
2020-09-09 11:02:10 +02:00
parent 3d5f375d52
commit 39fc6d7816
3 changed files with 36 additions and 27 deletions
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9
test/spec/ol/format/mvt.test.js
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@@ -65,6 +65,15 @@ where('ArrayBuffer.isView').describe('ol.format.MVT', function () {
expect(geometry.getCoordinates()[1][0]).to.eql([4160, 3489]);
});
it('avoids unnecessary reprojections of the ol.render.Feature', function () {
const format = new MVT({
layers: ['poi_label'],
});
const geometry = format.readFeatures(data)[0].getGeometry();
expect(geometry.getType()).to.be('Point');
expect(geometry.getFlatCoordinates()).to.eql([-1210, 2681]);
});
it('parses id property', function () {
// ol.Feature
let format = new MVT({