ad62739a6e
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
62 lines
1.2 KiB
JavaScript
62 lines
1.2 KiB
JavaScript
import Feature from '../src/ol/Feature.js';
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import Map from '../src/ol/Map.js';
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import View from '../src/ol/View.js';
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import LineString from '../src/ol/geom/LineString.js';
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import VectorLayer from '../src/ol/layer/Vector.js';
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import VectorSource from '../src/ol/source/Vector.js';
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import Stroke from '../src/ol/style/Stroke.js';
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import Style from '../src/ol/style/Style.js';
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const count = 10000;
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const features = new Array(count);
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let startPoint = [0, 0];
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let endPoint;
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let delta, deltaX, deltaY;
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let signX = 1;
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let signY = -1;
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// Create a square spiral.
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let i;
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for (i = 0; i < count; ++i) {
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delta = (i + 1) * 2500;
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if (i % 2 === 0) {
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signY *= -1;
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} else {
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signX *= -1;
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}
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deltaX = delta * signX;
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deltaY = delta * signY;
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endPoint = [startPoint[0] + deltaX, startPoint[1] + deltaY];
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features[i] = new Feature({
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'geometry': new LineString([startPoint, endPoint])
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});
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startPoint = endPoint;
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}
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const vector = new VectorLayer({
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source: new VectorSource({
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features: features,
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wrapX: false
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}),
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style: new Style({
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stroke: new Stroke({
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color: '#666666',
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width: 1
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})
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})
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});
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const view = new View({
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center: [0, 0],
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zoom: 0
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});
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const map = new Map({
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layers: [vector],
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target: 'map',
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view: view
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});
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