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Simplify vector tile projection handling

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This commit is contained in:
ahocevar
2019-03-10 09:34:40 +01:00
parent 7002053678
commit b2722542fe
10 changed files with 148 additions and 181 deletions
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30
test/spec/ol/format/mvt.test.js
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@@ -1,5 +1,4 @@
import Feature from '../../../../src/ol/Feature.js';
import {getWidth} from '../../../../src/ol/extent.js';
import MVT from '../../../../src/ol/format/MVT.js';
import Point from '../../../../src/ol/geom/Point.js';
import Polygon from '../../../../src/ol/geom/Polygon.js';
@@ -22,15 +21,20 @@ where('ArrayBuffer.isView').describe('ol.format.MVT', function() {
describe('#readFeatures', function() {
const options = {
featureProjection: 'EPSG:3857',
extent: [1824704.739223726, 6141868.096770482, 1827150.7241288517, 6144314.081675608]
};
it('uses ol.render.Feature as feature class by default', function() {
const format = new MVT({layers: ['water']});
const features = format.readFeatures(data);
const features = format.readFeatures(data, options);
expect(features[0]).to.be.a(RenderFeature);
});
it('parses only specified layers', function() {
const format = new MVT({layers: ['water']});
const features = format.readFeatures(data);
const features = format.readFeatures(data, options);
expect(features.length).to.be(10);
});
@@ -64,29 +68,27 @@ where('ArrayBuffer.isView').describe('ol.format.MVT', function() {
featureClass: Feature,
layers: ['building']
});
let features = format.readFeatures(data);
let features = format.readFeatures(data, options);
expect(features[0].getId()).to.be(2);
// ol.render.Feature
format = new MVT({
layers: ['building']
});
features = format.readFeatures(data);
features = format.readFeatures(data, options);
expect(features[0].getId()).to.be(2);
});
it('sets the extent of the last readFeatures call', function() {
const format = new MVT();
format.readFeatures(data);
const extent = format.getLastExtent();
expect(getWidth(extent)).to.be(4096);
});
});
});
describe('ol.format.MVT', function() {
const options = {
featureProjection: 'EPSG:3857',
extent: [1824704.739223726, 6141868.096770482, 1827150.7241288517, 6144314.081675608]
};
describe('#createFeature_', function() {
it('accepts a geometryName', function() {
const format = new MVT({
@@ -176,7 +178,9 @@ describe('ol.format.MVT', function() {
ends.push(10, 20);
createdEnds = ends;
};
const feature = format.createFeature_({}, rawFeature);
format.dataProjection.setExtent([0, 0, 4096, 4096]);
format.dataProjection.setWorldExtent(options.extent);
const feature = format.createFeature_({}, rawFeature, format.adaptOptions(options));
expect(feature).to.be.a(RenderFeature);
expect(feature.getType()).to.be('Polygon');
expect(feature.getFlatCoordinates()).to.equal(createdFlatCoordinates);