openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
86 lines (72 loc) • 2.78 kB
JavaScript
goog.provide('ol.test.format.MVT');
goog.require('ol.Feature');
goog.require('ol.ext.pbf');
goog.require('ol.ext.vectortile');
goog.require('ol.format.MVT');
goog.require('ol.render.Feature');
where('ArrayBuffer.isView').describe('ol.format.MVT', function() {
var data;
beforeEach(function(done) {
var xhr = new XMLHttpRequest();
xhr.open('GET', 'spec/ol/data/14-8938-5680.vector.pbf');
xhr.responseType = 'arraybuffer';
xhr.onload = function() {
data = xhr.response;
done();
};
xhr.send();
});
describe('#readFeatures', function() {
it('uses ol.render.Feature as feature class by default', function() {
var format = new ol.format.MVT({layers: ['water']});
var features = format.readFeatures(data);
expect(features[0]).to.be.a(ol.render.Feature);
});
it('parses only specified layers', function() {
var format = new ol.format.MVT({layers: ['water']});
var features = format.readFeatures(data);
expect(features.length).to.be(10);
});
it('parses geometries correctly', function() {
var format = new ol.format.MVT({
featureClass: ol.Feature,
layers: ['poi_label']
});
var pbf = new ol.ext.pbf(data);
var tile = new ol.ext.vectortile.VectorTile(pbf);
var geometry, rawGeometry;
rawGeometry = tile.layers['poi_label'].feature(0).loadGeometry();
geometry = format.readFeatures(data)[0]
.getGeometry();
expect(geometry.getType()).to.be('Point');
expect(geometry.getCoordinates())
.to.eql([rawGeometry[0][0].x, rawGeometry[0][0].y]);
rawGeometry = tile.layers['water'].feature(0).loadGeometry();
format.setLayers(['water']);
geometry = format.readFeatures(data)[0]
.getGeometry();
expect(geometry.getType()).to.be('Polygon');
expect(rawGeometry[0].length)
.to.equal(geometry.getCoordinates()[0].length);
expect(geometry.getCoordinates()[0][0])
.to.eql([rawGeometry[0][0].x, rawGeometry[0][0].y]);
rawGeometry = tile.layers['barrier_line'].feature(0).loadGeometry();
format.setLayers(['barrier_line']);
geometry = format.readFeatures(data)[0]
.getGeometry();
expect(geometry.getType()).to.be('MultiLineString');
expect(rawGeometry[1].length)
.to.equal(geometry.getCoordinates()[1].length);
expect(geometry.getCoordinates()[1][0])
.to.eql([rawGeometry[1][0].x, rawGeometry[1][0].y]);
});
it('parses id property', function() {
var format = new ol.format.MVT({
featureClass: ol.Feature,
layers: ['building']
});
var features = format.readFeatures(data);
expect(features[0].getId()).to.be(2);
});
});
});