27 lines
802 B
JavaScript
27 lines
802 B
JavaScript
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import VectorLayer from 'ol/layer/Vector';
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import {Vector as VectorSource} from 'ol/source.js';
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import GeoJSON from 'ol/format/GeoJSON.js';
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import {Style, Stroke} from 'ol/style.js';
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import amtrakURL from '/data/amtrak-data.geojson?url'; // TODO: remove `?url`?
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const amtrak_colors = '0,83,126'; // from their website's cookie banner, and other places
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const vectorLayer = new VectorLayer({
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source: new VectorSource({
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url: amtrakURL,
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format: new GeoJSON,
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}),
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style: function(feature, resolution){
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return new Style({
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stroke: new Stroke({
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color: `rgba(${amtrak_colors},${Math.min(1, Math.pow(resolution/10, 1/4))})`,
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width: 10/Math.pow(resolution, 1/4),
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})
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});
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},
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});
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export default vectorLayer;
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