73 lines
1.8 KiB
JavaScript
73 lines
1.8 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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const source = new VectorSource({
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url: 'data/geojson/switzerland.geojson',
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format: new GeoJSON(),
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});
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const vectorLayer = new VectorLayer({
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source: source,
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style: {
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'fill-color': 'rgba(255, 255, 255, 0.6)',
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'stroke-width': 1,
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'stroke-color': '#319FD3',
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'circle-radius': 5,
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'circle-fill-color': 'rgba(255, 255, 255, 0.6)',
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'circle-stroke-width': 1,
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'circle-stroke-color': '#319FD3',
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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: 1,
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});
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const map = new Map({
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layers: [
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new TileLayer({
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source: new OSM(),
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}),
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vectorLayer,
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],
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target: 'map',
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view: view,
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});
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const zoomtoswitzerland = document.getElementById('zoomtoswitzerland');
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zoomtoswitzerland.addEventListener(
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'click',
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function () {
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const feature = source.getFeatures()[0];
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const polygon = feature.getGeometry();
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view.fit(polygon, {padding: [170, 50, 30, 150]});
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},
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false
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);
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const zoomtolausanne = document.getElementById('zoomtolausanne');
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zoomtolausanne.addEventListener(
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'click',
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function () {
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const feature = source.getFeatures()[1];
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const point = feature.getGeometry();
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view.fit(point, {padding: [170, 50, 30, 150], minResolution: 50});
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},
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false
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);
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const centerlausanne = document.getElementById('centerlausanne');
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centerlausanne.addEventListener(
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'click',
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function () {
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const feature = source.getFeatures()[1];
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const point = feature.getGeometry();
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const size = map.getSize();
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view.centerOn(point.getCoordinates(), size, [570, 500]);
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},
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false
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);
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