134 lines
3.3 KiB
JavaScript
134 lines
3.3 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, Text} 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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import {fromLonLat} from '../src/ol/proj.js';
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import {getVectorContext} from '../src/ol/render.js';
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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 iconFeature = new Feature({
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geometry: new Point(fromLonLat([0, -10])),
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name: 'Fish.1',
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});
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const feature1 = new Feature({
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geometry: new Point(fromLonLat([0, -10])),
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name: 'Fish.1 Island',
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});
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const feature2 = new Feature({
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geometry: new Point(fromLonLat([-30, 10])),
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name: 'Fish.2 Island',
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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, 0.9],
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src: 'data/fish.png',
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crossOrigin: '',
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scale: [0, 0],
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rotation: Math.PI / 4,
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}),
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text: new Text({
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text: 'FISH\nTEXT',
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scale: [0, 0],
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rotation: Math.PI / 4,
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textAlign: 'center',
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textBaseline: 'top',
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}),
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});
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let i = 0;
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let j = 45;
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iconFeature.setStyle(function () {
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const x = Math.sin((i * Math.PI) / 180) * 3;
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const y = Math.sin((j * Math.PI) / 180) * 4;
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iconStyle.getImage().setScale([x, y]);
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iconStyle.getText().setScale([x, y]);
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return iconStyle;
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});
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rasterLayer.on('postrender', function (event) {
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const vectorContext = getVectorContext(event);
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const x = Math.cos((i * Math.PI) / 180) * 3;
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const y = Math.cos((j * Math.PI) / 180) * 4;
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iconStyle.getImage().setScale([x, y]);
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iconStyle.getText().setScale([x, y]);
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vectorContext.drawFeature(feature2, iconStyle);
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});
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const vectorSource = new VectorSource({
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features: [iconFeature, feature1, feature2],
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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 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: fromLonLat([-15, 0]),
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zoom: 3,
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}),
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});
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setInterval(function () {
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i = (i + 4) % 360;
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j = (j + 5) % 360;
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vectorSource.changed();
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}, 1000);
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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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offset: [0, -50],
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});
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map.addOverlay(popup);
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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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$(element).popover('dispose');
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if (feature) {
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const coordinates = feature.getGeometry().getCoordinates();
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popup.setPosition(coordinates);
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$(element).popover({
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placement: 'top',
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html: true,
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animation: false,
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content: feature.get('name'),
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});
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$(element).popover('show');
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}
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});
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// change mouse cursor when over marker
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map.on('pointermove', function (e) {
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if (e.dragging) {
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$(element).popover('dispose');
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return;
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}
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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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