maps.chandlerswift.com/layers/survey-markers/index.js

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2024-03-15 00:09:23 -05:00
import VectorLayer from 'ol/layer/Vector';
import {Vector as VectorSource} from 'ol/source.js';
import GeoJSON from 'ol/format/GeoJSON.js';
import {Style} from 'ol/style.js';
import Icon from 'ol/style/Icon.js';
import pin from './pin.svg?url';
import states from './states.js';
let survey_markers = {
name: "National Geodetic Survey Markers",
details: `These are extremely large, and loading too many at once may crash your browser.<br><a href="#" onclick="this.closest('details').querySelectorAll('ul li input').forEach(e => e.checked || e.click()); return false;">Enable All (will <i>definitely</i> crash your browser)</a>`,
layers: [],
};
for (let [state, url] of Object.entries(states)) {
const vectorLayer = new VectorLayer({
source: new VectorSource({
url: url,
format: new GeoJSON,
}),
style: new Style({
image: new Icon({
anchor: [0.5, 1],
src: pin,
}),
}),
});
survey_markers.layers.push({
name: state,
layer: vectorLayer,
});
}
survey_markers.layers.sort((a, b) => a.name > b.name ? 1 : -1); // Names are always unique
export default survey_markers;