49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
goog.require('ol.DeviceOrientation');
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goog.require('ol.Map');
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goog.require('ol.RendererHints');
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goog.require('ol.View2D');
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goog.require('ol.dom.Input');
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goog.require('ol.layer.Tile');
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goog.require('ol.source.OSM');
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var view = new ol.View2D({
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center: [0, 0],
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zoom: 2
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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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})
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],
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renderers: ol.RendererHints.createFromQueryData(),
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target: 'map',
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view: view
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});
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var deviceOrientation = new ol.DeviceOrientation();
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var track = new ol.dom.Input(document.getElementById('track'));
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track.bindTo('checked', deviceOrientation, 'tracking');
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deviceOrientation.on('propertychange', function(event) {
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// event.getKey() is the changed property name
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var key = event.getKey();
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var element = document.getElementById(key);
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if (element) {
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element.innerHTML = deviceOrientation.get(key);
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}
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});
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// tilt the map
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deviceOrientation.on(['change:beta', 'change:gamma'], function(event) {
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var center = view.getCenter();
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var resolution = view.getResolution();
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var beta = event.target.getBeta() || 0;
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var gamma = event.target.getGamma() || 0;
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center[0] -= resolution * gamma * 25;
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center[1] += resolution * beta * 25;
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view.setCenter(center);
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});
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