97 lines
2.4 KiB
JavaScript
97 lines
2.4 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 GPX from '../src/ol/format/GPX.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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import {Circle as CircleStyle, Fill, Stroke, Style} from '../src/ol/style.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 style = {
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'Point': new Style({
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image: new CircleStyle({
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fill: new Fill({
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color: 'rgba(255,255,0,0.4)'
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}),
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radius: 5,
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stroke: new Stroke({
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color: '#ff0',
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width: 1
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})
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})
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}),
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'LineString': new Style({
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stroke: new Stroke({
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color: '#f00',
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width: 3
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})
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}),
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'MultiLineString': new Style({
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stroke: new Stroke({
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color: '#0f0',
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width: 3
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})
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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/gpx/fells_loop.gpx',
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format: new GPX()
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}),
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style: function(feature) {
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return style[feature.getGeometry().getType()];
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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: [-7916041.528716288, 5228379.045749711],
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zoom: 12
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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('desc'));
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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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