44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
goog.require('ol.Map');
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goog.require('ol.View');
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goog.require('ol.extent');
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goog.require('ol.layer.Tile');
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goog.require('ol.proj');
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goog.require('ol.source.OSM');
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goog.require('ol.source.TileWMS');
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goog.require('ol.tilegrid.TileGrid');
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var projExtent = ol.proj.get('EPSG:3857').getExtent();
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var startResolution = ol.extent.getWidth(projExtent) / 256;
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var resolutions = new Array(22);
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for (var i = 0, ii = resolutions.length; i < ii; ++i) {
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resolutions[i] = startResolution / Math.pow(2, i);
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}
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var tileGrid = new ol.tilegrid.TileGrid({
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extent: [-13884991, 2870341, -7455066, 6338219],
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resolutions: resolutions,
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tileSize: [512, 256]
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});
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var 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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new ol.layer.Tile({
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source: new ol.source.TileWMS({
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url: 'https://ahocevar.com/geoserver/wms',
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params: {'LAYERS': 'topp:states', 'TILED': true},
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serverType: 'geoserver',
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tileGrid: tileGrid
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})
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})
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];
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var map = new ol.Map({
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layers: layers,
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target: 'map',
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view: new ol.View({
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center: [-10997148, 4569099],
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zoom: 4
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})
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});
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