49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
import _ol_Map_ from '../src/ol/Map.js';
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import _ol_View_ from '../src/ol/View.js';
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import {defaults as defaultControls} from '../src/ol/control.js';
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import * as _ol_extent_ from '../src/ol/extent.js';
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import _ol_layer_Tile_ from '../src/ol/layer/Tile.js';
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import {toLonLat} from '../src/ol/proj.js';
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import _ol_source_OSM_ from '../src/ol/source/OSM.js';
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var map = new _ol_Map_({
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layers: [
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new _ol_layer_Tile_({
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source: new _ol_source_OSM_()
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})
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],
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target: 'map',
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controls: defaultControls({
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attributionOptions: {
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collapsible: false
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}
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}),
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view: new _ol_View_({
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center: [0, 0],
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zoom: 2
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})
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});
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function display(id, value) {
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document.getElementById(id).value = value.toFixed(2);
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}
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function wrapLon(value) {
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var worlds = Math.floor((value + 180) / 360);
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return value - (worlds * 360);
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}
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function onMoveEnd(evt) {
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var map = evt.map;
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var extent = map.getView().calculateExtent(map.getSize());
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var bottomLeft = toLonLat(_ol_extent_.getBottomLeft(extent));
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var topRight = toLonLat(_ol_extent_.getTopRight(extent));
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display('left', wrapLon(bottomLeft[0]));
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display('bottom', bottomLeft[1]);
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display('right', wrapLon(topRight[0]));
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display('top', topRight[1]);
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}
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map.on('moveend', onMoveEnd);
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