Files
openlayers/test/spec/ol/layer/heatmap.test.js
Tim Schaub 054af09032 Make code prettier
This updates ESLint and our shared eslint-config-openlayers to use Prettier.  Most formatting changes were automatically applied with this:

    npm run lint -- --fix

A few manual changes were required:

 * In `examples/offscreen-canvas.js`, the `//eslint-disable-line` comment needed to be moved to the appropriate line to disable the error about the `'worker-loader!./offscreen-canvas.worker.js'` import.
 * In `examples/webpack/exapmle-builder.js`, spaces could not be added after a couple `function`s for some reason.  While editing this, I reworked `ExampleBuilder` to be a class.
 * In `src/ol/format/WMSGetFeatureInfo.js`, the `// @ts-ignore` comment needed to be moved down one line so it applied to the `parsersNS` argument.
2020-04-06 12:54:09 -06:00

83 lines
2.2 KiB
JavaScript

import Feature from '../../../../src/ol/Feature.js';
import HeatmapLayer from '../../../../src/ol/layer/Heatmap.js';
import Map from '../../../../src/ol/Map.js';
import Point from '../../../../src/ol/geom/Point.js';
import VectorSource from '../../../../src/ol/source/Vector.js';
import View from '../../../../src/ol/View.js';
describe('ol.layer.Heatmap', function () {
describe('constructor', function () {
it('can be constructed without arguments', function () {
const instance = new HeatmapLayer();
expect(instance).to.be.an(HeatmapLayer);
});
});
describe('hit detection', function () {
it('hit detects two distinct features', function (done) {
const target = document.createElement('div');
target.style.width = '300px';
target.style.height = '300px';
document.body.appendChild(target);
const feature = new Feature({
geometry: new Point([0, 0]),
id: 1,
weight: 10,
});
const feature2 = new Feature({
geometry: new Point([14, 14]),
id: 2,
weight: 10,
});
const source = new VectorSource({
features: [feature, feature2],
});
const layer = new HeatmapLayer({
source: source,
blur: 10,
radius: 10,
});
const map = new Map({
layers: [layer],
view: new View({
center: [0, 0],
resolution: 0.1,
}),
target: target,
});
map.render();
function hitTest(coordinate) {
const features = map.getFeaturesAtPixel(
map.getPixelFromCoordinate(coordinate)
);
return features.length ? features[0] : null;
}
const renderer = layer.getRenderer();
renderer.worker_.addEventListener('message', function (event) {
if (!renderer.hitRenderInstructions_) {
return;
}
map.renderSync();
let res;
res = hitTest([0, 0]);
expect(res).to.be(feature);
res = hitTest([20, 0]);
expect(res).to.be(null);
res = hitTest([14, 14]);
expect(res).to.be(feature2);
res = hitTest([0, 14]);
expect(res).to.be(null);
document.body.removeChild(target);
done();
});
});
});
});