86 lines
2.7 KiB
JavaScript
86 lines
2.7 KiB
JavaScript
goog.provide('ol.test.format.MVT');
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goog.require('ol.Feature');
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goog.require('ol.ext.pbf');
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goog.require('ol.ext.vectortile');
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goog.require('ol.format.MVT');
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goog.require('ol.render.Feature');
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where('ArrayBuffer').describe('ol.format.MVT', function() {
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var data;
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beforeEach(function(done) {
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var xhr = new XMLHttpRequest();
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xhr.open('GET', 'spec/ol/data/14-8938-5680.vector.pbf');
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xhr.responseType = 'arraybuffer';
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xhr.onload = function() {
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data = xhr.response;
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done();
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};
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xhr.send();
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});
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describe('#readFeatures', function() {
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it('uses ol.render.Feature as feature class by default', function() {
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var format = new ol.format.MVT({layers: ['water']});
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var features = format.readFeatures(data);
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expect(features[0]).to.be.a(ol.render.Feature);
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});
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it('parses only specified layers', function() {
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var format = new ol.format.MVT({layers: ['water']});
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var features = format.readFeatures(data);
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expect(features.length).to.be(10);
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});
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it('parses geometries correctly', function() {
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var format = new ol.format.MVT({
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featureClass: ol.Feature,
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layers: ['poi_label']
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});
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var pbf = new ol.ext.pbf(data);
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var tile = new ol.ext.vectortile.VectorTile(pbf);
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var geometry, rawGeometry;
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rawGeometry = tile.layers['poi_label'].feature(0).loadGeometry();
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geometry = format.readFeatures(data)[0]
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.getGeometry();
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expect(geometry.getType()).to.be('Point');
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expect(geometry.getCoordinates())
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.to.eql([rawGeometry[0][0].x, rawGeometry[0][0].y]);
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rawGeometry = tile.layers['water'].feature(0).loadGeometry();
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format.setLayers(['water']);
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geometry = format.readFeatures(data)[0]
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.getGeometry();
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expect(geometry.getType()).to.be('Polygon');
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expect(rawGeometry[0].length)
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.to.equal(geometry.getCoordinates()[0].length);
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expect(geometry.getCoordinates()[0][0])
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.to.eql([rawGeometry[0][0].x, rawGeometry[0][0].y]);
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rawGeometry = tile.layers['barrier_line'].feature(0).loadGeometry();
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format.setLayers(['barrier_line']);
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geometry = format.readFeatures(data)[0]
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.getGeometry();
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expect(geometry.getType()).to.be('MultiLineString');
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expect(rawGeometry[1].length)
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.to.equal(geometry.getCoordinates()[1].length);
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expect(geometry.getCoordinates()[1][0])
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.to.eql([rawGeometry[1][0].x, rawGeometry[1][0].y]);
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});
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it('parses id property', function() {
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var format = new ol.format.MVT({
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featureClass: ol.Feature,
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layers: ['building']
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});
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var features = format.readFeatures(data);
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expect(features[0].getId()).to.be(2);
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});
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});
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});
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