054af09032
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.
54 lines
1.6 KiB
JavaScript
54 lines
1.6 KiB
JavaScript
import GeoJSON from '../src/ol/format/GeoJSON.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 {OSM, Vector as VectorSource} from '../src/ol/source.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
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import {fromLonLat} from '../src/ol/proj.js';
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const source = new VectorSource();
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fetch('data/geojson/roads-seoul.geojson')
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.then(function (response) {
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return response.json();
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})
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.then(function (json) {
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const format = new GeoJSON();
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const features = format.readFeatures(json);
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const street = features[0];
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// convert to a turf.js feature
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const turfLine = format.writeFeatureObject(street);
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// show a marker every 200 meters
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const distance = 0.2;
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// get the line length in kilometers
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const length = turf.lineDistance(turfLine, 'kilometers');
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for (let i = 1; i <= length / distance; i++) {
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const turfPoint = turf.along(turfLine, i * distance, 'kilometers');
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// convert the generated point to a OpenLayers feature
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const marker = format.readFeature(turfPoint);
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marker.getGeometry().transform('EPSG:4326', 'EPSG:3857');
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source.addFeature(marker);
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}
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street.getGeometry().transform('EPSG:4326', 'EPSG:3857');
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source.addFeature(street);
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});
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const vectorLayer = new VectorLayer({
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source: source,
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});
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const rasterLayer = new TileLayer({
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source: new OSM(),
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});
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const map = new Map({
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layers: [rasterLayer, vectorLayer],
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target: document.getElementById('map'),
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view: new View({
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center: fromLonLat([126.980366, 37.52654]),
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zoom: 15,
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}),
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});
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