105 lines
2.5 KiB
JavaScript
105 lines
2.5 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 Layer from '../src/ol/layer/Layer';
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import {toLonLat} from '../src/ol/proj';
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import {Stroke, Style} from '../src/ol/style.js';
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import VectorLayer from '../src/ol/layer/Vector.js';
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import VectorSource from '../src/ol/source/Vector.js';
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import GeoJSON from '../src/ol/format/GeoJSON.js';
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const style = new Style({
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stroke: new Stroke({
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color: '#319FD3',
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width: 2
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})
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});
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const vectorLayer = new VectorLayer({
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source: new VectorSource({
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url: 'data/geojson/countries.geojson',
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format: new GeoJSON()
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}),
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style: style
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});
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const map = new Map({
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target: 'map',
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view: new View({
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center: [-10997148, 4569099],
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zoom: 4,
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minZoom: 1,
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extent: [-Infinity, -20048966.10, Infinity, 20048966.10],
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smoothExtentConstraint: false,
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smoothResolutionConstraint: false
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})
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});
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// init Mapbox object
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const view = map.getView();
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const center = toLonLat(view.getCenter(), view.getProjection());
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const key = 'ER67WIiPdCQvhgsUjoWK';
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const mbMap = new mapboxgl.Map({
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style: 'https://maps.tilehosting.com/styles/bright/style.json?key=' + key,
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attributionControl: false,
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boxZoom: false,
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center: center,
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container: map.getTargetElement(),
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doubleClickZoom: false,
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dragPan: false,
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dragRotate: false,
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interactive: false,
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keyboard: false,
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pitchWithRotate: false,
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scrollZoom: false,
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touchZoomRotate: false,
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zoom: view.getZoom() - 1
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});
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// init OL layers
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const mbLayer = new Layer({
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render: function(frameState) {
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const canvas = mbMap.getCanvas();
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const view = map.getView();
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const visible = mbLayer.getVisible();
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canvas.style.display = visible ? 'block' : 'none';
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const opacity = mbLayer.getOpacity();
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canvas.style.opacity = opacity;
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// adjust view parameters in mapbox
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const rotation = frameState.viewState.rotation;
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if (rotation) {
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mbMap.rotateTo(-rotation * 180 / Math.PI, {
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animate: false
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});
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}
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const center = toLonLat(view.getCenter(), view.getProjection());
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const zoom = view.getZoom() - 1;
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mbMap.jumpTo({
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center: center,
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zoom: zoom,
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animate: false
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});
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// cancel the scheduled update & trigger synchronous redraw
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// see https://github.com/mapbox/mapbox-gl-js/issues/7893#issue-408992184
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// NOTE: THIS MIGHT BREAK WHEN UPDATING MAPBOX
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if (mbMap._frame) {
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mbMap._frame.cancel();
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mbMap._frame = null;
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}
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mbMap._render();
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return canvas;
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}
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});
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map.addLayer(mbLayer);
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map.addLayer(vectorLayer);
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