53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
goog.require('ol.Map');
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goog.require('ol.View2D');
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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.WMTS');
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goog.require('ol.tilegrid.WMTS');
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var projection = ol.proj.get('EPSG:900913');
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var projectionExtent = projection.getExtent();
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var size = ol.extent.getWidth(projectionExtent) / 256;
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var resolutions = new Array(18);
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var matrixIds = new Array(18);
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for (var z = 0; z < 18; ++z) {
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// generate resolutions and matrixIds arrays for this WMTS
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resolutions[z] = size / Math.pow(2, z);
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matrixIds[z] = z;
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}
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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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opacity: 0.7
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}),
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new ol.layer.Tile({
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opacity: 0.7,
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source: new ol.source.WMTS({
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url: 'http://demo-apollo.geospatial.intergraph.com/erdas-iws/ogc/wmts/',
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layer: 'sampleiws_images_geodetic_worldgeodemo.ecw',
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matrixSet: 'ogc:1.0:googlemapscompatible',
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format: 'image/jpeg',
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projection: projection,
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tileGrid: new ol.tilegrid.WMTS({
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origin: ol.extent.getTopLeft(projectionExtent),
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resolutions: resolutions,
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matrixIds: matrixIds
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}),
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extent: [-20037508.34, -20037508.34, 20037508.34, 20037508.34],
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style: 'default'
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})
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})
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],
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target: 'map',
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view: new ol.View2D({
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center: [0, 0],
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zoom: 0,
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maxResolution: resolutions[1]
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})
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});
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