352 lines
9.5 KiB
JavaScript
352 lines
9.5 KiB
JavaScript
import Feature from '../../../../../src/ol/Feature.js';
|
|
import ImageLayer from '../../../../../src/ol/layer/Image.js';
|
|
import Map from '../../../../../src/ol/Map.js';
|
|
import Point from '../../../../../src/ol/geom/Point.js';
|
|
import Projection from '../../../../../src/ol/proj/Projection.js';
|
|
import Static from '../../../../../src/ol/source/ImageStatic.js';
|
|
import VectorImageLayer from '../../../../../src/ol/layer/VectorImage.js';
|
|
import VectorSource from '../../../../../src/ol/source/Vector.js';
|
|
import View from '../../../../../src/ol/View.js';
|
|
import {get as getProj} from '../../../../../src/ol/proj.js';
|
|
|
|
describe('ol.renderer.canvas.ImageLayer', function () {
|
|
describe('#forEachLayerAtCoordinate', function () {
|
|
let map, target, source;
|
|
beforeEach(function (done) {
|
|
const projection = new Projection({
|
|
code: 'custom-image',
|
|
units: 'pixels',
|
|
extent: [0, 0, 200, 200],
|
|
});
|
|
target = document.createElement('div');
|
|
target.style.width = '100px';
|
|
target.style.height = '100px';
|
|
document.body.appendChild(target);
|
|
source = new Static({
|
|
url: 'spec/ol/data/dot.png',
|
|
projection: projection,
|
|
imageExtent: [0, 0, 20, 20],
|
|
});
|
|
map = new Map({
|
|
pixelRatio: 1,
|
|
target: target,
|
|
layers: [
|
|
new ImageLayer({
|
|
source: source,
|
|
}),
|
|
],
|
|
view: new View({
|
|
projection: projection,
|
|
center: [10, 10],
|
|
zoom: 2,
|
|
maxZoom: 8,
|
|
}),
|
|
});
|
|
source.on('imageloadend', function () {
|
|
done();
|
|
});
|
|
});
|
|
|
|
afterEach(function () {
|
|
map.setTarget(null);
|
|
document.body.removeChild(target);
|
|
});
|
|
|
|
it('properly detects pixels', function () {
|
|
map.renderSync();
|
|
let has = false;
|
|
function hasLayer() {
|
|
has = true;
|
|
}
|
|
map.forEachLayerAtPixel([20, 80], hasLayer);
|
|
expect(has).to.be(true);
|
|
has = false;
|
|
map.forEachLayerAtPixel([10, 90], hasLayer);
|
|
expect(has).to.be(false);
|
|
});
|
|
});
|
|
|
|
describe('#forEachLayerAtPixel Image CORS', function () {
|
|
let map,
|
|
target,
|
|
imageExtent,
|
|
projection,
|
|
sourceCross,
|
|
source,
|
|
imageLayer,
|
|
imageLayerCross;
|
|
beforeEach(function (done) {
|
|
projection = new Projection({
|
|
code: 'custom-image',
|
|
units: 'pixels',
|
|
extent: [0, 0, 200, 200],
|
|
});
|
|
target = document.createElement('div');
|
|
target.style.width = '100px';
|
|
target.style.height = '100px';
|
|
document.body.appendChild(target);
|
|
imageExtent = [0, 0, 20, 20];
|
|
source = new Static({
|
|
url: `https://openlayers.org/assets/theme/img/logo70.png`,
|
|
projection: projection,
|
|
imageExtent: imageExtent,
|
|
});
|
|
imageLayer = new ImageLayer({
|
|
source: source,
|
|
});
|
|
sourceCross = new Static({
|
|
url: `https://openlayers.org/assets/theme/img/logo70.png`,
|
|
projection: projection,
|
|
imageExtent: imageExtent,
|
|
crossOrigin: 'anonymous',
|
|
});
|
|
imageLayerCross = new ImageLayer({
|
|
source: sourceCross,
|
|
});
|
|
map = new Map({
|
|
pixelRatio: 1,
|
|
target: target,
|
|
layers: [imageLayer, imageLayerCross],
|
|
view: new View({
|
|
projection: projection,
|
|
center: [10, 10],
|
|
zoom: 1,
|
|
maxZoom: 8,
|
|
}),
|
|
});
|
|
let loadedCount = 0;
|
|
[source, sourceCross].forEach(function (source) {
|
|
source.once('imageloadend', function () {
|
|
loadedCount++;
|
|
if (loadedCount === 2) {
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
afterEach(function () {
|
|
map.setTarget(null);
|
|
document.body.removeChild(target);
|
|
});
|
|
|
|
it('should detect pixels even if there is no color because neither crossOrigin or extent is set', function () {
|
|
imageLayerCross.setVisible(false);
|
|
imageLayer.setVisible(true);
|
|
map.renderSync();
|
|
let has = false;
|
|
function hasLayer() {
|
|
has = true;
|
|
}
|
|
map.forEachLayerAtPixel([50, 50], hasLayer);
|
|
expect(has).to.be(true);
|
|
has = false;
|
|
map.forEachLayerAtPixel([10, 10], hasLayer);
|
|
expect(has).to.be(true);
|
|
});
|
|
|
|
it('should not detect pixels outside of the layer extent with crossOrigin set', function () {
|
|
imageLayerCross.setVisible(true);
|
|
imageLayer.setVisible(false);
|
|
map.renderSync();
|
|
let has = false;
|
|
function hasLayer() {
|
|
has = true;
|
|
}
|
|
map.forEachLayerAtPixel([50, 50], hasLayer);
|
|
expect(has).to.be(true);
|
|
has = false;
|
|
map.forEachLayerAtPixel([10, 10], hasLayer);
|
|
expect(has).to.be(false);
|
|
});
|
|
|
|
it('should not detect pixels outside of the layer extent with extent set', function () {
|
|
imageLayerCross.setVisible(true);
|
|
imageLayerCross.setExtent(imageExtent);
|
|
imageLayer.setVisible(false);
|
|
map.renderSync();
|
|
let has = false;
|
|
function hasLayer() {
|
|
has = true;
|
|
}
|
|
map.forEachLayerAtPixel([50, 50], hasLayer);
|
|
expect(has).to.be(true);
|
|
has = false;
|
|
map.forEachLayerAtPixel([10, 10], hasLayer);
|
|
expect(has).to.be(false);
|
|
});
|
|
});
|
|
|
|
describe('#getDataAtPixel', function () {
|
|
let map, target, source, imageLayer;
|
|
beforeEach(function (done) {
|
|
const projection = new Projection({
|
|
code: 'custom-image',
|
|
units: 'pixels',
|
|
extent: [0, 0, 200, 200],
|
|
});
|
|
target = document.createElement('div');
|
|
target.style.width = '100px';
|
|
target.style.height = '100px';
|
|
document.body.appendChild(target);
|
|
const imageExtent = [0, 0, 20, 20];
|
|
source = new Static({
|
|
url: 'spec/ol/data/dot.png',
|
|
projection: projection,
|
|
imageExtent: imageExtent,
|
|
});
|
|
imageLayer = new ImageLayer({
|
|
source: source,
|
|
extent: imageExtent,
|
|
});
|
|
map = new Map({
|
|
pixelRatio: 1,
|
|
target: target,
|
|
layers: [imageLayer],
|
|
view: new View({
|
|
projection: projection,
|
|
center: [10, 10],
|
|
zoom: 1,
|
|
maxZoom: 8,
|
|
}),
|
|
});
|
|
source.on('imageloadend', function () {
|
|
done();
|
|
});
|
|
});
|
|
|
|
afterEach(function () {
|
|
map.setTarget(null);
|
|
document.body.removeChild(target);
|
|
});
|
|
|
|
it('should not detect pixels outside of the layer extent', function () {
|
|
map.renderSync();
|
|
const pixel = [10, 10];
|
|
const frameState = map.frameState_;
|
|
const hitTolerance = 0;
|
|
const layerRenderer = imageLayer.getRenderer();
|
|
const data = layerRenderer.getDataAtPixel(
|
|
pixel,
|
|
frameState,
|
|
hitTolerance
|
|
);
|
|
expect(data).to.be(null);
|
|
});
|
|
|
|
it('should detect pixels in the layer extent', function () {
|
|
map.renderSync();
|
|
const pixel = [50, 50];
|
|
const frameState = map.frameState_;
|
|
const hitTolerance = 0;
|
|
const layerRenderer = imageLayer.getRenderer();
|
|
const data = layerRenderer.getDataAtPixel(
|
|
pixel,
|
|
frameState,
|
|
hitTolerance
|
|
);
|
|
expect(data.length > 0).to.be(true);
|
|
});
|
|
});
|
|
|
|
describe('Image rendering', function () {
|
|
let map, div, layer;
|
|
|
|
beforeEach(function (done) {
|
|
const projection = getProj('EPSG:3857');
|
|
layer = new ImageLayer({
|
|
source: new Static({
|
|
url: 'spec/ol/data/osm-0-0-0.png',
|
|
imageExtent: projection.getExtent(),
|
|
projection: projection,
|
|
}),
|
|
});
|
|
|
|
div = document.createElement('div');
|
|
div.style.width = '100px';
|
|
div.style.height = '100px';
|
|
document.body.appendChild(div);
|
|
map = new Map({
|
|
target: div,
|
|
layers: [layer],
|
|
view: new View({
|
|
center: [0, 0],
|
|
zoom: 2,
|
|
}),
|
|
});
|
|
layer.getSource().on('imageloadend', function () {
|
|
done();
|
|
});
|
|
});
|
|
|
|
afterEach(function () {
|
|
map.setTarget(null);
|
|
document.body.removeChild(div);
|
|
map.dispose();
|
|
});
|
|
|
|
it('dispatches prerender and postrender events on the image layer', function (done) {
|
|
let prerender = 0;
|
|
let postrender = 0;
|
|
layer.on('prerender', function () {
|
|
++prerender;
|
|
});
|
|
layer.on('postrender', function () {
|
|
++postrender;
|
|
});
|
|
map.on('postrender', function () {
|
|
expect(prerender).to.be(1);
|
|
expect(postrender).to.be(1);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('Vector image rendering', function () {
|
|
let map, div, layer;
|
|
|
|
beforeEach(function () {
|
|
layer = new VectorImageLayer({
|
|
source: new VectorSource({
|
|
features: [new Feature(new Point([0, 0]))],
|
|
}),
|
|
});
|
|
|
|
div = document.createElement('div');
|
|
div.style.width = '100px';
|
|
div.style.height = '100px';
|
|
document.body.appendChild(div);
|
|
map = new Map({
|
|
target: div,
|
|
layers: [layer],
|
|
view: new View({
|
|
center: [0, 0],
|
|
zoom: 2,
|
|
}),
|
|
});
|
|
});
|
|
|
|
afterEach(function () {
|
|
map.setTarget(null);
|
|
document.body.removeChild(div);
|
|
map.dispose();
|
|
});
|
|
|
|
it('dispatches prerender and postrender events on the vector layer', function (done) {
|
|
let prerender = 0;
|
|
let postrender = 0;
|
|
layer.on('prerender', function () {
|
|
++prerender;
|
|
});
|
|
layer.on('postrender', function () {
|
|
++postrender;
|
|
});
|
|
map.once('postrender', function () {
|
|
expect(prerender).to.be(1);
|
|
expect(postrender).to.be(1);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|