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<link rel="stylesheet" href="./css/ol.css" type="text/css">
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<title>Device Orientation</title>
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<a class="nav-link dropdown-toggle" href="#" id="codedropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Code</a>
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<button id="latest-dismiss" type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
This example uses OpenLayers v<span>6.12.0</span>. The <a id="latest-link" href="#" class="alert-link">latest</a> is v<span id="latest-version"></span>.
</div>
<div class="row-fluid">
<a href="#" id="codepen-button" class="btn btn-link float-right">
<i class="fa fa-codepen fa-lg"></i> Edit
</a>
<div class="span12">
<h4 id="title">Device Orientation</h4>
<p class="tags">
<span class="badge-group">
<a
href="./index.html?q=device" class="badge badge-info">device</a
><a
class="badge badge-info tag-modal-toggle text-white"
data-toggle="modal"
data-target="#tag-example-list"
data-title="device"
data-content="
&lt;a class=&quot;list-group-item list-group-item-action active&quot; href=&quot;./device-orientation.html&quot;&gt;Device Orientation&lt;/a&gt;"
tabindex="0"
>1</a>
</span>
<span class="badge-group">
<a
href="./index.html?q=orientation" class="badge badge-info">orientation</a
><a
class="badge badge-info tag-modal-toggle text-white"
data-toggle="modal"
data-target="#tag-example-list"
data-title="orientation"
data-content="
&lt;a class=&quot;list-group-item list-group-item-action active&quot; href=&quot;./device-orientation.html&quot;&gt;Device Orientation&lt;/a&gt;
&lt;a class=&quot;list-group-item list-group-item-action&quot; href=&quot;./geolocation-orientation.html&quot;&gt;Geolocation Tracking with Orientation&lt;/a&gt;"
tabindex="0"
>2</a>
</span>
<span class="badge-group">
<a
href="./index.html?q=gyronorm" class="badge badge-info">gyronorm</a
><a
class="badge badge-info tag-modal-toggle text-white"
data-toggle="modal"
data-target="#tag-example-list"
data-title="gyronorm"
data-content="
&lt;a class=&quot;list-group-item list-group-item-action active&quot; href=&quot;./device-orientation.html&quot;&gt;Device Orientation&lt;/a&gt;"
tabindex="0"
>1</a>
</span>
</p>
<div class="modal modal-tag-example" id="tag-example-list" tabindex="-1" role="dialog" aria-labelledby="tag-example-title" aria-hidden="true">
<div class="modal-dialog modal-dialog-scrollable" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="tag-example-title"></h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">&times;</span>
</button>
</div>
<div class="modal-body">
<div class="list-group"></div>
</div>
</div>
</div>
</div>
<div id="map" class="map"></div>
<p>
<div>α : <code id="alpha"></code></div>
<div>β : <code id="beta"></code></div>
<div>γ : <code id="gamma"></code></div>
</p>
</div>
<form method="POST" id="codepen-form" target="_blank" action="https://codesandbox.io/api/v1/sandboxes/define">
<input id="codesandbox-params" type="hidden" name="parameters">
</form>
</div>
<div class="row-fluid">
<div class="span12">
<p id="shortdesc">Listen to DeviceOrientation events.</p>
<div id="docs"><p>This example shows how to track changes in device orientation. <a href="https://github.com/dorukeker/gyronorm.js">gyronorm.js</a> library is used to access and normalize the events from the browser.</p>
</div>
</div>
</div>
<div class="row-fluid">
<h5 class="source-heading">main.js</h5>
<pre><code id="example-js-source" class="language-js">import 'ol/ol.css';
import Map from &#x27;ol/Map&#x27;;
import OSM from &#x27;ol/source/OSM&#x27;;
import TileLayer from &#x27;ol/layer/Tile&#x27;;
import View from &#x27;ol/View&#x27;;
import {toRadians} from &#x27;ol/math&#x27;;
const view &#x3D; new View({
center: [0, 0],
zoom: 2,
});
const map &#x3D; new Map({
layers: [
new TileLayer({
source: new OSM(),
}),
],
target: &#x27;map&#x27;,
view: view,
});
function el(id) {
return document.getElementById(id);
}
const gn &#x3D; new GyroNorm();
gn.init().then(function () {
gn.start(function (event) {
const center &#x3D; view.getCenter();
const resolution &#x3D; view.getResolution();
const alpha &#x3D; toRadians(event.do.alpha);
const beta &#x3D; toRadians(event.do.beta);
const gamma &#x3D; toRadians(event.do.gamma);
el(&#x27;alpha&#x27;).innerText &#x3D; alpha + &#x27; [rad]&#x27;;
el(&#x27;beta&#x27;).innerText &#x3D; beta + &#x27; [rad]&#x27;;
el(&#x27;gamma&#x27;).innerText &#x3D; gamma + &#x27; [rad]&#x27;;
center[0] -&#x3D; resolution * gamma * 25;
center[1] +&#x3D; resolution * beta * 25;
view.setCenter(center);
});
});
</code></pre>
</div>
<div class="row-fluid">
<h5 class="source-heading">index.html</h5>
<pre><code id="example-html-source" class="language-markup">&lt;!DOCTYPE html&gt;
&lt;html lang="en"&gt;
&lt;head&gt;
&lt;meta charset="UTF-8"&gt;
&lt;title&gt;Device Orientation&lt;/title&gt;
&lt;!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer --&gt;
&lt;script src="https://unpkg.com/elm-pep"&gt;&lt;/script&gt;
&lt;!-- The lines below are only needed for old environments like Internet Explorer and Android 4.x --&gt;
&lt;script src="https://cdn.polyfill.io/v3/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,TextDecoder"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/3.18.3/minified.js"&gt;&lt;/script&gt;
&lt;script src&#x3D;&quot;https://unpkg.com/gyronorm@2.0.6/dist/gyronorm.complete.min.js&quot;&gt;&lt;/script&gt;
&lt;style&gt;
.map {
width: 100%;
height:400px;
}
&lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;div id&#x3D;&quot;map&quot; class&#x3D;&quot;map&quot;&gt;&lt;/div&gt;
&lt;p&gt;
&lt;div&gt;α : &lt;code id&#x3D;&quot;alpha&quot;&gt;&lt;/code&gt;&lt;/div&gt;
&lt;div&gt;β : &lt;code id&#x3D;&quot;beta&quot;&gt;&lt;/code&gt;&lt;/div&gt;
&lt;div&gt;γ : &lt;code id&#x3D;&quot;gamma&quot;&gt;&lt;/code&gt;&lt;/div&gt;
&lt;/p&gt;
&lt;script src="main.js"&gt;&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;</code></pre>
</div>
<div class="row-fluid">
<h5 class="source-heading">package.json</h5>
<pre><code id="example-pkg-source" class="language-json">{
&quot;name&quot;: &quot;device-orientation&quot;,
&quot;dependencies&quot;: {
&quot;ol&quot;: &quot;6.12.0&quot;
},
&quot;devDependencies&quot;: {
&quot;parcel&quot;: &quot;^2.0.0&quot;
},
&quot;scripts&quot;: {
&quot;start&quot;: &quot;parcel index.html&quot;,
&quot;build&quot;: &quot;parcel build --public-url . index.html&quot;
}
}</code></pre>
</div>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.bundle.min.js"></script>
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<script src="./resources/common.js"></script>
<script src="common.js"></script>
<script src="device-orientation.js"></script>
<script>
$('#tag-example-list').on('show.bs.modal', function (event) {
const button = $(event.relatedTarget); // Button that triggered the modal
const title = button.data('title');
const content = button.data('content');
const modal = $(this)
modal.find('.modal-title').text(title);
modal.find('.modal-body').html(content);
});
var packageUrl = 'https://raw.githubusercontent.com/openlayers/openlayers.github.io/build/package.json';
fetch(packageUrl).then(function(response) {
return response.json();
}).then(function(json) {
var latestVersion = json.version;
document.getElementById('latest-version').innerHTML = latestVersion;
var url = window.location.href;
var branchSearch = url.match(/\/([^\/]*)\/examples\//);
var cookieText = 'dismissed=-' + latestVersion + '-';
var dismissed = document.cookie.indexOf(cookieText) != -1;
if (branchSearch && !dismissed && /^v[0-9\.]*$/.test(branchSearch[1]) && '6.12.0' != latestVersion) {
var link = url.replace(branchSearch[0], '/latest/examples/');
fetch(link, {method: 'head'}).then(function(response) {
var a = document.getElementById('latest-link');
a.href = response.status == 200 ? link : '../../latest/examples/';
});
var latestCheck = document.getElementById('latest-check');
latestCheck.style.display = '';
document.getElementById('latest-dismiss').onclick = function() {
latestCheck.style.display = 'none';
document.cookie = cookieText;
}
}
});
</script>
</body>
</html>