465 lines
12 KiB
JavaScript
465 lines
12 KiB
JavaScript
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goog.require('ol.Feature');
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goog.require('ol.Map');
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goog.require('ol.View');
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goog.require('ol.format.GeoJSON');
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goog.require('ol.geom.Circle');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.Polygon');
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goog.require('ol.layer.Vector');
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goog.require('ol.source.Vector');
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goog.require('ol.style.Fill');
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goog.require('ol.style.Stroke');
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goog.require('ol.style.Style');
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describe('ol.rendering.layer.Vector', function() {
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var center = [1825927.7316762917, 6143091.089223046];
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var map;
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function createMap(renderer) {
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map = new ol.Map({
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pixelRatio: 1,
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target: createMapDiv(80, 80),
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renderer: renderer,
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view: new ol.View({
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center: center,
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zoom: 13
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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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}
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map = null;
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});
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var source;
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function addCircle(r) {
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source.addFeature(new ol.Feature(new ol.geom.Circle(center, r)));
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}
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function addPolygon(r) {
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source.addFeature(new ol.Feature(new ol.geom.Polygon([
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[
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[center[0] - r, center[1] - r],
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[center[0] + r, center[1] - r],
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[center[0] + r, center[1] + r],
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[center[0] - r, center[1] + r],
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[center[0] - r, center[1] - r]
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]
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])));
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}
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function addLineString(r) {
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source.addFeature(new ol.Feature(new ol.geom.LineString([
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[center[0] - r, center[1] - r],
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[center[0] + r, center[1] - r],
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[center[0] + r, center[1] + r],
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[center[0] - r, center[1] + r],
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[center[0] - r, center[1] - r]
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])));
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}
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describe('vector layer', function() {
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beforeEach(function() {
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source = new ol.source.Vector();
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});
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it('renders opacity correctly with the canvas renderer', function(done) {
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createMap('canvas');
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var smallLine = new ol.Feature(new ol.geom.LineString([
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[center[0], center[1] - 1],
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[center[0], center[1] + 1]
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]));
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smallLine.setStyle(new ol.style.Style({
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zIndex: -99,
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stroke: new ol.style.Stroke({width: 75, color: 'red'})
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}));
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source.addFeature(smallLine);
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addPolygon(100);
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addCircle(200);
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addPolygon(250);
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addCircle(500);
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addPolygon(600);
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addPolygon(720);
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map.addLayer(new ol.layer.Vector({
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source: source
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}));
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map.once('postrender', function() {
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expectResemble(map, 'rendering/ol/layer/expected/vector-canvas.png',
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17, done);
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});
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});
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it('renders transparent layers correctly with the canvas renderer', function(done) {
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createMap('canvas');
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var smallLine = new ol.Feature(new ol.geom.LineString([
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[center[0], center[1] - 1],
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[center[0], center[1] + 1]
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]));
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smallLine.setStyle([
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new ol.style.Style({
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stroke: new ol.style.Stroke({width: 75, color: 'red'})
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}),
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new ol.style.Style({
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stroke: new ol.style.Stroke({width: 45, color: 'white'})
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})
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]);
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source.addFeature(smallLine);
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var smallLine2 = new ol.Feature(new ol.geom.LineString([
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[center[0], center[1] - 1000],
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[center[0], center[1] + 1000]
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]));
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smallLine2.setStyle([
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new ol.style.Style({
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stroke: new ol.style.Stroke({width: 35, color: 'blue'})
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}),
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new ol.style.Style({
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stroke: new ol.style.Stroke({width: 15, color: 'green'})
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})
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]);
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source.addFeature(smallLine2);
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map.addLayer(new ol.layer.Vector({
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source: source,
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opacity: 0.5
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}));
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map.once('postrender', function() {
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expectResemble(map, 'rendering/ol/layer/expected/vector-canvas-transparent.png',
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7, done);
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});
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});
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it('renders rotation correctly with the canvas renderer', function(done) {
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createMap('canvas');
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map.getView().setRotation(Math.PI + Math.PI / 4);
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addPolygon(300);
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addCircle(500);
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map.addLayer(new ol.layer.Vector({
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source: source,
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style: new ol.style.Style({
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stroke: new ol.style.Stroke({
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width: 2,
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color: 'black'
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})
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})
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}));
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map.once('postrender', function() {
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expectResemble(map, 'rendering/ol/layer/expected/vector-canvas-rotated.png',
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1.7, done);
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});
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});
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it('renders fill/stroke batches correctly with the canvas renderer', function(done) {
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createMap('canvas');
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source = new ol.source.Vector({
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overlaps: false
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});
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addPolygon(100);
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addCircle(200);
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addPolygon(250);
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addCircle(500);
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addPolygon(600);
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addPolygon(720);
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map.addLayer(new ol.layer.Vector({
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source: source,
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style: new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: '#3399CC',
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width: 1.25
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})
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})
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}));
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map.once('postrender', function() {
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expectResemble(map, 'rendering/ol/layer/expected/vector-canvas-opaque.png',
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24.34, done);
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});
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});
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it('renders stroke batches correctly with the canvas renderer', function(done) {
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createMap('canvas');
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source = new ol.source.Vector({
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overlaps: false
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});
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addLineString(100);
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addLineString(250);
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addLineString(600);
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addLineString(720);
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map.addLayer(new ol.layer.Vector({
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source: source,
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style: new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: '#3399CC',
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width: 1.25
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})
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})
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}));
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map.once('postrender', function() {
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expectResemble(map, 'rendering/ol/layer/expected/vector-canvas-stroke.png',
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7, done);
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});
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});
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it('interrupts fill/stroke batches correctly with the canvas renderer', function(done) {
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createMap('canvas');
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var color;
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function createSource(overlaps) {
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color = '#3399CC';
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source = new ol.source.Vector({
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overlaps: overlaps
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});
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addPolygon(720);
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addPolygon(600);
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addCircle(500);
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addPolygon(250);
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addCircle(200);
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addPolygon(100);
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return source;
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}
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function alternateColor() {
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if (color == '#3399CC') {
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color = '#CC9933';
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} else {
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color = '#3399CC';
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}
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return color;
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}
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var layer = new ol.layer.Vector({
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source: createSource(true),
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style: function(feature) {
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alternateColor();
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return new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: alternateColor(),
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width: 1.25
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}),
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fill: new ol.style.Fill({
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color: alternateColor()
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})
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});
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}
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});
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map.addLayer(layer);
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map.once('postrender', function() {
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var canvas = map.getRenderer().canvas_;
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// take a snapshot of this `overlaps: true` image
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var referenceImage = canvas.toDataURL('image/png');
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// now render the same with `overlaps: false`
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layer.setSource(createSource(false));
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// result should be the same as with `overlaps: true`
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map.once('postrender', function(e) {
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expectResemble(map, referenceImage, 1e-9, done);
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});
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});
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});
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it('interrupts stroke batches correctly with the canvas renderer', function(done) {
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createMap('canvas');
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var color;
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function createSource(overlaps) {
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color = '#3399CC';
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source = new ol.source.Vector({
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overlaps: overlaps
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});
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addLineString(720);
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addLineString(600);
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addLineString(250);
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addLineString(100);
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return source;
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}
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function alternateColor() {
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if (color == '#3399CC') {
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color = '#CC9933';
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} else {
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color = '#3399CC';
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}
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return color;
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}
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var layer = new ol.layer.Vector({
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source: createSource(true),
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style: function(feature) {
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alternateColor();
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return new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: alternateColor(),
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width: 1.25
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}),
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fill: new ol.style.Fill({
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color: alternateColor()
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})
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});
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}
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});
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map.addLayer(layer);
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map.once('postrender', function() {
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var canvas = map.getRenderer().canvas_;
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// take a snapshot of this `overlaps: true` image
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var referenceImage = canvas.toDataURL('image/png');
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// now render the same with `overlaps: false`
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layer.setSource(createSource(false));
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// result should be exactly the same as with `overlaps: true`
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map.once('postrender', function() {
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expectResemble(map, referenceImage, 1e-9, done);
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});
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});
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});
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});
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describe('polygon rendering', function() {
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var map2;
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beforeEach(function() {
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map2 = new ol.Map({
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pixelRatio: 1,
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target: createMapDiv(128, 128),
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view: new ol.View({
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center: [0, 0],
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zoom: 0
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})
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});
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});
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afterEach(function() {
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disposeMap(map2);
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map2 = null;
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});
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it('renders a feature that spans the world', function(done) {
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var json = {
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type: 'Feature',
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geometry: {
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type: 'Polygon',
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coordinates: [
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[
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[-180, -90], [180, -90], [180, 90], [-180, 90], [-180, -90]
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],
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[
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[0, 60], [-17.6336, 24.2705], [-57.0634, 18.5410], [-28.5317, -9.2705], [-35.2671, -48.5410], [0, -30], [35.2671, -48.5410], [28.5317, -9.2705], [57.0634, 18.5410], [17.6336, 24.2705], [0, 60]
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]
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]
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},
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properties: {}
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};
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var format = new ol.format.GeoJSON({featureProjection: 'EPSG:3857'});
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var feature = format.readFeature(json);
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var layer = new ol.layer.Vector({
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source: new ol.source.Vector({
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features: [feature]
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}),
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style: new ol.style.Style({
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fill: new ol.style.Fill({
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color: 'blue'
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})
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})
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});
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map2.addLayer(layer);
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map2.once('postrender', function() {
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expectResemble(map2, 'rendering/ol/layer/expected/inverted-star.png', 1, done);
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});
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});
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});
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describe('Polygon simplification', function() {
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var layer, map3;
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beforeEach(function() {
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var src = new ol.source.Vector({
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features: [
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new ol.Feature(new ol.geom.Polygon([[
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[-22, 58],
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[-22, 78],
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[-9, 78],
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[-9, 58],
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[-22, 58]
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]])),
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new ol.Feature(new ol.geom.Polygon([[
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[-9, 58],
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[-9, 78],
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[4, 78],
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[4, 58],
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[-9, 58]
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]]))
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]
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});
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layer = new ol.layer.Vector({
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renderBuffer: 0,
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source: src
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});
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var view = new ol.View({
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center: [-9.5, 78],
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zoom: 2,
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projection: 'EPSG:4326'
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});
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map3 = new ol.Map({
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pixelRatio: 1,
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layers: [layer],
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target: createMapDiv(100, 100),
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view: view
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});
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});
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afterEach(function() {
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disposeMap(map3);
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map3 = null;
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});
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it('renders partially out-of-view polygons with a fill and stroke', function(done) {
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layer.setStyle(new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: [0, 0, 0, 1],
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width: 2
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}),
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fill: new ol.style.Fill({
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color: [255, 0, 0, 1]
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})
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}));
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map3.once('postrender', function() {
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expectResemble(map3, 'rendering/ol/layer/expected/vector-canvas-simplified.png',
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IMAGE_TOLERANCE, done);
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});
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});
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it('renders partially out-of-view polygons with a fill', function(done) {
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layer.setStyle(new ol.style.Style({
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fill: new ol.style.Fill({
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color: [0, 0, 0, 1]
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})
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}));
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map3.once('postrender', function() {
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expectResemble(map3, 'rendering/ol/layer/expected/vector-canvas-simplified-fill.png',
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IMAGE_TOLERANCE, done);
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});
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});
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it('renders partially out-of-view polygons with a stroke', function(done) {
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layer.setStyle(new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: [0, 0, 0, 1],
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width: 2
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})
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}));
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map3.once('postrender', function() {
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expectResemble(map3, 'rendering/ol/layer/expected/vector-canvas-simplified-stroke.png',
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IMAGE_TOLERANCE, done);
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});
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});
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});
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});
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