| 1 | goog.require('ol.Map');
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| 2 | goog.require('ol.View');
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| 3 | goog.require('ol.extent');
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| 4 | goog.require('ol.layer.Image');
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| 5 | goog.require('ol.layer.Tile');
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| 6 | goog.require('ol.proj');
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| 7 | goog.require('ol.source.ImageStatic');
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| 8 | goog.require('ol.source.OSM');
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| 9 |
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| 10 |
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| 11 | proj4.defs('EPSG:27700', '+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 ' +
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| 12 | '+x_0=400000 +y_0=-100000 +ellps=airy ' +
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| 13 | '+towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 ' +
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| 14 | '+units=m +no_defs');
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| 15 | var imageExtent = [0, 0, 700000, 1300000];
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| 16 |
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| 17 | var map = new ol.Map({
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| 18 | layers: [
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| 19 | new ol.layer.Tile({
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| 20 | source: new ol.source.OSM()
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| 21 | }),
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| 22 | new ol.layer.Image({
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| 23 | source: new ol.source.ImageStatic({
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| 24 | url: 'https://upload.wikimedia.org/wikipedia/commons/thumb/1/18/' +
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| 25 | 'British_National_Grid.svg/2000px-British_National_Grid.svg.png',
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| 26 | crossOrigin: '',
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| 27 | projection: 'EPSG:27700',
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| 28 | imageExtent: imageExtent
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| 29 | })
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| 30 | })
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| 31 | ],
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| 32 | target: 'map',
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| 33 | view: new ol.View({
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| 34 | center: ol.proj.transform(
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| 35 | ol.extent.getCenter(imageExtent), 'EPSG:27700', 'EPSG:3857'),
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| 36 | zoom: 4
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| 37 | })
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| 38 | });
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