44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
import Graticule from '../src/ol/layer/Graticule.js';
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import Map from '../src/ol/Map.js';
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import View from '../src/ol/View.js';
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import GeoJSON from '../src/ol/format/GeoJSON.js';
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import VectorLayer from '../src/ol/layer/Vector.js';
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import Projection from '../src/ol/proj/Projection.js';
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import VectorSource from '../src/ol/source/Vector.js';
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import {register} from '../src/ol/proj/proj4.js';
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import proj4 from 'proj4';
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proj4.defs('ESRI:53009', '+proj=moll +lon_0=0 +x_0=0 +y_0=0 +a=6371000 ' +
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'+b=6371000 +units=m +no_defs');
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register(proj4);
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// Configure the Sphere Mollweide projection object with an extent,
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// and a world extent. These are required for the Graticule.
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const sphereMollweideProjection = new Projection({
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code: 'ESRI:53009',
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extent: [-9009954.605703328, -9009954.605703328,
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9009954.605703328, 9009954.605703328],
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worldExtent: [-179, -89.99, 179, 89.99]
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});
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const map = new Map({
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keyboardEventTarget: document,
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layers: [
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new VectorLayer({
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source: new VectorSource({
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url: 'data/geojson/countries-110m.geojson',
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format: new GeoJSON()
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})
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}),
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new Graticule()
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],
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target: 'map',
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view: new View({
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center: [0, 0],
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projection: sphereMollweideProjection,
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resolutions: [65536, 32768, 16384, 8192, 4096, 2048],
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zoom: 0
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})
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});
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