95 lines
2.2 KiB
JavaScript
95 lines
2.2 KiB
JavaScript
import Feature from '../src/ol/Feature.js';
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import Map from '../src/ol/Map.js';
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import Overlay from '../src/ol/Overlay.js';
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import Point from '../src/ol/geom/Point.js';
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import TileJSON from '../src/ol/source/TileJSON.js';
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import VectorSource from '../src/ol/source/Vector.js';
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import View from '../src/ol/View.js';
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import {Icon, Style} from '../src/ol/style.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
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const iconFeature = new Feature({
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geometry: new Point([0, 0]),
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name: 'Null Island',
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population: 4000,
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rainfall: 500,
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});
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const iconStyle = new Style({
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image: new Icon({
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anchor: [0.5, 46],
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anchorXUnits: 'fraction',
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anchorYUnits: 'pixels',
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src: 'data/icon.png',
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}),
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});
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iconFeature.setStyle(iconStyle);
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const vectorSource = new VectorSource({
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features: [iconFeature],
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});
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const vectorLayer = new VectorLayer({
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source: vectorSource,
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});
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const rasterLayer = new TileLayer({
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source: new TileJSON({
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url: 'https://a.tiles.mapbox.com/v3/aj.1x1-degrees.json?secure=1',
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crossOrigin: '',
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}),
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});
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const map = new Map({
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layers: [rasterLayer, vectorLayer],
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target: document.getElementById('map'),
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view: new View({
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center: [0, 0],
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zoom: 3,
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}),
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});
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const element = document.getElementById('popup');
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const popup = new Overlay({
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element: element,
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positioning: 'bottom-center',
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stopEvent: false,
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});
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map.addOverlay(popup);
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let popover;
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function disposePopover() {
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if (popover) {
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popover.dispose();
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popover = undefined;
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}
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}
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// display popup on click
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map.on('click', function (evt) {
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const feature = map.forEachFeatureAtPixel(evt.pixel, function (feature) {
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return feature;
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});
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disposePopover();
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if (!feature) {
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return;
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}
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popup.setPosition(evt.coordinate);
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popover = new bootstrap.Popover(element, {
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placement: 'top',
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html: true,
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content: feature.get('name'),
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});
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popover.show();
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});
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// change mouse cursor when over marker
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map.on('pointermove', function (e) {
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const pixel = map.getEventPixel(e.originalEvent);
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const hit = map.hasFeatureAtPixel(pixel);
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map.getTarget().style.cursor = hit ? 'pointer' : '';
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});
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// Close the popup when the map is moved
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map.on('movestart', disposePopover);
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