| 1 | goog.require('ol.Map');
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| 2 | goog.require('ol.View');
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| 3 | goog.require('ol.control');
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| 4 | goog.require('ol.layer.Tile');
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| 5 | goog.require('ol.source.OSM');
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| 6 |
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| 7 |
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| 8 | var map = new ol.Map({
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| 9 | layers: [
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| 10 | new ol.layer.Tile({
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| 11 | source: new ol.source.OSM()
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| 12 | })
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| 13 | ],
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| 14 | target: 'map',
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| 15 | controls: ol.control.defaults({
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| 16 | attributionOptions: {
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| 17 | collapsible: false
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| 18 | }
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| 19 | }),
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| 20 | view: new ol.View({
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| 21 | center: [0, 0],
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| 22 | zoom: 2
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| 23 | })
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| 24 | });
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| 25 |
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| 26 | document.getElementById('zoom-out').onclick = function() {
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| 27 | var view = map.getView();
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| 28 | var zoom = view.getZoom();
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| 29 | view.setZoom(zoom - 1);
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| 30 | };
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| 31 |
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| 32 | document.getElementById('zoom-in').onclick = function() {
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| 33 | var view = map.getView();
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| 34 | var zoom = view.getZoom();
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| 35 | view.setZoom(zoom + 1);
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| 36 | };
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