41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
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 data from './routes.js';
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const trails = {
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name: "Minnesota Adventure Trails",
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details: `<a href="https://minnesotaadventuretrails.com/">https://minnesotaadventuretrails.com/</a>`,
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layers: [],
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};
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for (let [chain, url] of Object.entries(data)) {
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const colors = '0,0,0';
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const vectorLayer = new VectorLayer({
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source: new VectorSource({
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url: url,
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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(${colors},${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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trails.layers.push({
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name: chain,
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layer: vectorLayer,
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});
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}
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trails.layers.sort((a, b) => a.name > b.name ? 1 : -1); // Names are always unique
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export default trails;
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