67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
import Map from '../src/ol/Map.js';
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import View from '../src/ol/View.js';
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import KML from '../src/ol/format/KML.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
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import XYZ from '../src/ol/source/XYZ.js';
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import VectorSource from '../src/ol/source/Vector.js';
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const key = 'get_your_own_D6rA4zTHduk6KOKTXzGB';
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const attributions = '<a href="https://www.maptiler.com/copyright/" target="_blank">© MapTiler</a> ' +
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'<a href="https://www.openstreetmap.org/copyright" target="_blank">© OpenStreetMap contributors</a>';
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const raster = new TileLayer({
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source: new XYZ({
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attributions: attributions,
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url: 'https://api.maptiler.com/tiles/satellite/{z}/{x}/{y}.jpg?key=' + key,
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maxZoom: 20
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})
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});
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const vector = new VectorLayer({
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source: new VectorSource({
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url: 'data/kml/2012-02-10.kml',
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format: new KML()
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})
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});
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const map = new Map({
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layers: [raster, vector],
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target: document.getElementById('map'),
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view: new View({
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center: [876970.8463461736, 5859807.853963373],
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projection: 'EPSG:3857',
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zoom: 10
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})
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});
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const displayFeatureInfo = function(pixel) {
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const features = [];
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map.forEachFeatureAtPixel(pixel, function(feature) {
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features.push(feature);
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});
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if (features.length > 0) {
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const info = [];
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let i, ii;
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for (i = 0, ii = features.length; i < ii; ++i) {
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info.push(features[i].get('name'));
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}
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document.getElementById('info').innerHTML = info.join(', ') || '(unknown)';
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map.getTarget().style.cursor = 'pointer';
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} else {
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document.getElementById('info').innerHTML = ' ';
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map.getTarget().style.cursor = '';
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}
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};
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map.on('pointermove', function(evt) {
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if (evt.dragging) {
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return;
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}
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const pixel = map.getEventPixel(evt.originalEvent);
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displayFeatureInfo(pixel);
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});
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map.on('click', function(evt) {
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displayFeatureInfo(evt.pixel);
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});
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