Port polygon-style rendering test
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Frederic Junod
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import Feature from '../../../../src/ol/Feature.js';
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import Polygon from '../../../../src/ol/geom/Polygon.js';
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import Map from '../../../../src/ol/Map.js';
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import WebGLMap from '../../../../src/ol/WebGLMap.js';
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import View from '../../../../src/ol/View.js';
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import VectorLayer from '../../../../src/ol/layer/Vector.js';
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import WebGLVectorLayer from '../../../../src/ol/layer/Vector.js';
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import VectorSource from '../../../../src/ol/source/Vector.js';
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import Fill from '../../../../src/ol/style/Fill.js';
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import Style from '../../../../src/ol/style/Style.js';
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import Stroke from '../../../../src/ol/style/Stroke.js';
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describe('ol.rendering.style.Polygon', function() {
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let map, vectorSource;
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function createMap(renderer, opt_size) {
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const MapConstructor = renderer === 'webgl' ? WebGLMap : Map;
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const LayerConstructor = renderer === 'webgl' ? WebGLVectorLayer : VectorLayer;
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const size = opt_size || 50;
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vectorSource = new VectorSource();
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const vectorLayer = new LayerConstructor({
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source: vectorSource
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});
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map = new MapConstructor({
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pixelRatio: 1,
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target: createMapDiv(size, size),
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layers: [vectorLayer],
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view: new View({
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projection: 'EPSG:4326',
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center: [0, 0],
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resolution: 1
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})
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});
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}
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afterEach(function() {
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if (map) {
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disposeMap(map);
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map = null;
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}
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});
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describe('different types', function() {
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function createFeatures() {
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const fill = new Fill({color: 'red'});
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let feature;
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// rectangle
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feature = new Feature({
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geometry: new Polygon([
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[[-20, 10], [-20, 20], [-5, 20], [-5, 10], [-20, 10]]
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])
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});
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feature.setStyle(new Style({
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fill: fill
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}));
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vectorSource.addFeature(feature);
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// rectangle with 1 hole
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feature = new Feature({
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geometry: new Polygon([
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[[0, 10], [0, 20], [15, 20], [15, 10], [0, 10]],
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[[5, 13], [10, 13], [10, 17], [5, 17], [5, 13]]
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])
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});
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feature.setStyle(new Style({
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fill: fill
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}));
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vectorSource.addFeature(feature);
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// rectangle with 2 holes
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feature = new Feature({
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geometry: new Polygon([
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[[-20, -20], [-20, 5], [15, 5], [15, -20], [-20, -20]],
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[[-18, -18], [-12, -18], [-12, -12], [-18, -12], [-18, -18]],
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[[5, -18], [12, -18], [12, -12], [5, -12], [5, -18]]
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])
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});
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feature.setStyle(new Style({
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fill: fill
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}));
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vectorSource.addFeature(feature);
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}
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it('tests the canvas renderer', function(done) {
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createMap('canvas');
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createFeatures();
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expectResemble(map, 'rendering/ol/style/expected/polygon-types-canvas.png',
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IMAGE_TOLERANCE, done);
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});
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where('WebGL').it('tests the webgl renderer', function(done) {
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createMap('webgl');
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createFeatures();
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expectResemble(map, 'rendering/ol/style/expected/polygon-types-webgl.png',
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IMAGE_TOLERANCE, done);
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});
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});
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describe('different types with stroke', function() {
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function createFeatures() {
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const stroke = new Stroke({
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width: 10,
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color: '#000',
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lineJoin: 'round',
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lineCap: 'butt'
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});
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let feature;
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// rectangle
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feature = new Feature({
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geometry: new Polygon([
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[[-20, 10], [-20, 20], [-5, 20], [-5, 10], [-20, 10]]
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])
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});
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feature.setStyle(new Style({
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stroke: stroke
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}));
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vectorSource.addFeature(feature);
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// rectangle with 1 hole
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feature = new Feature({
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geometry: new Polygon([
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[[0, 10], [0, 20], [20, 20], [20, 10], [0, 10]],
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[[5, 13], [10, 13], [10, 17], [5, 17], [5, 13]]
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])
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});
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feature.setStyle(new Style({
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stroke: stroke
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}));
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vectorSource.addFeature(feature);
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// rectangle with 2 holes
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feature = new Feature({
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geometry: new Polygon([
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[[-20, -20], [-20, 5], [20, 5], [20, -20], [-20, -20]],
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[[-12, -3], [-12, -12], [-8, -12], [-8, -3], [-12, -3]],
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[[0, -12], [13, -12], [13, -3], [0, -3], [0, -12]]
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])
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});
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feature.setStyle(new Style({
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stroke: stroke
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}));
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vectorSource.addFeature(feature);
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}
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it('tests the canvas renderer', function(done) {
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createMap('canvas', 100);
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map.getView().setResolution(0.5);
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createFeatures();
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expectResemble(map, 'rendering/ol/style/expected/polygon-types-canvas-stroke.png',
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IMAGE_TOLERANCE, done);
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});
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where('WebGL').it('tests the webgl renderer', function(done) {
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createMap('webgl', 100);
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map.getView().setResolution(0.5);
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createFeatures();
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expectResemble(map, 'rendering/ol/style/expected/polygon-types-webgl-stroke.png',
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IMAGE_TOLERANCE, done);
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});
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});
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describe('z-index', function() {
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function createFeatures() {
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let feature;
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// rectangle with z-index 2
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feature = new Feature({
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geometry: new Polygon([
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[[-20, 10], [-20, 20], [-0, 20], [-0, 10], [-20, 10]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: '#E31E10'}),
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zIndex: 2
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}));
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vectorSource.addFeature(feature);
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// rectangle with z-index 3
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feature = new Feature({
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geometry: new Polygon([
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[[-15, 5], [-15, 15], [5, 15], [5, 5], [-15, 5]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: '#1A5E42'}),
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zIndex: 3
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}));
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vectorSource.addFeature(feature);
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// rectangle with z-index 1
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feature = new Feature({
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geometry: new Polygon([
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[[-10, 0], [-10, 10], [10, 10], [10, 0], [-10, 0]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: '#DEDE21'}),
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zIndex: 1
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}));
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vectorSource.addFeature(feature);
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}
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it('tests the canvas renderer', function(done) {
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createMap('canvas');
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createFeatures();
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expectResemble(map, 'rendering/ol/style/expected/polygon-zindex-canvas.png',
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IMAGE_TOLERANCE, done);
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});
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where('WebGL').it('tests the webgl renderer', function(done) {
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createMap('webgl');
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createFeatures();
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expectResemble(map, 'rendering/ol/style/expected/polygon-zindex-webgl.png',
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IMAGE_TOLERANCE, done);
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});
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});
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describe('different fills and strokes', function() {
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function createFeatures() {
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let feature;
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// rectangle
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feature = new Feature({
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geometry: new Polygon([
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[[-20, 10], [-20, 20], [-5, 20], [-5, 10], [-20, 10]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: '#9696EB'}),
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stroke: new Stroke({color: '#9696EB', width: 1})
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}));
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vectorSource.addFeature(feature);
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// rectangle with 1 hole
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feature = new Feature({
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geometry: new Polygon([
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[[0, 10], [0, 20], [15, 20], [15, 10], [0, 10]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: 'rgba(255, 0, 0, 0.1)'}),
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stroke: new Stroke({color: '#DE213A', width: 3})
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}));
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vectorSource.addFeature(feature);
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// rectangle with 2 holes
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feature = new Feature({
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geometry: new Polygon([
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[[-20, -20], [-20, 5], [15, 5], [15, -20], [-20, -20]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: 'rgba(18, 204, 105, 0.3)'}),
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stroke: new Stroke({color: '#032E17', width: 2})
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}));
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vectorSource.addFeature(feature);
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}
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it('tests the canvas renderer', function(done) {
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createMap('canvas');
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createFeatures();
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expectResemble(
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map, 'rendering/ol/style/expected/polygon-fill-and-strokes-canvas.png',
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IMAGE_TOLERANCE, done);
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});
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where('WebGL').it('tests the webgl renderer', function(done) {
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createMap('webgl');
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createFeatures();
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expectResemble(
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map, 'rendering/ol/style/expected/polygon-fill-and-strokes-webgl.png',
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5.76, done);
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});
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});
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describe('CanvasPattern and LinearGradient as fills and strokes', function() {
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function createRainbowGradient() {
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const canvas = document.createElement('canvas');
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const context = canvas.getContext('2d');
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const gradient = context.createLinearGradient(0, 0, 30, 0);
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gradient.addColorStop(0, 'red');
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gradient.addColorStop(1 / 6, 'orange');
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gradient.addColorStop(2 / 6, 'yellow');
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gradient.addColorStop(3 / 6, 'green');
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gradient.addColorStop(4 / 6, 'aqua');
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gradient.addColorStop(5 / 6, 'blue');
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gradient.addColorStop(1, 'purple');
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return gradient;
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}
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function createPattern() {
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const canvas = document.createElement('canvas');
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const context = canvas.getContext('2d');
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canvas.width = 11;
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canvas.height = 11;
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context.fillStyle = 'rgba(102, 0, 102, 0.5)';
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context.beginPath();
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context.arc(5, 5, 4, 0, 2 * Math.PI);
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context.fill();
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context.fillStyle = 'rgb(55, 0, 170)';
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context.beginPath();
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context.arc(5, 5, 2, 0, 2 * Math.PI);
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context.fill();
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return context.createPattern(canvas, 'repeat');
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}
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function createFeatures() {
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const feature = new Feature({
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geometry: new Polygon([
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[[-20, -20], [-20, 20], [18, 20], [-20, -20]]
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])
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});
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feature.setStyle(new Style({
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fill: new Fill({color: createPattern()}),
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stroke: new Stroke({color: createRainbowGradient(), width: 3})
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}));
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vectorSource.addFeature(feature);
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}
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it('tests the canvas renderer', function(done) {
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createMap('canvas');
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createFeatures();
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expectResemble(
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map, 'rendering/ol/style/expected/polygon-pattern-gradient-canvas.png',
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2.75, done);
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});
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});
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});
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