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@emackey
Created December 8, 2014 14:34
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Dynamic position HUD for Cesium Sandcastle
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"> <!-- Use Chrome Frame in IE -->
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
<meta name="description" content="Dynamic HUD showing Longitude, Latitude, and Altitude of a selected CZML entity.">
<meta name="cesium-sandcastle-labels" content="Showcases, DataSources">
<title>Cesium Demo</title>
<script type="text/javascript" src="../Sandcastle-header.js"></script>
<script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.9/require.js"></script>
<script type="text/javascript">
require.config({
baseUrl : '../../../Source',
waitSeconds : 60
});
</script>
</head>
<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
<style>
@import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar"></div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
//
// USER INSTRUCTIONS: Left-click on any object in the CZML display
// to activate a HUD showing Lon, Lat, and Alt.
//
// Launch Cesium Viewer
var viewer = new Cesium.Viewer('cesiumContainer');
viewer.extend(Cesium.viewerEntityMixin);
// Load CZML
var czmlDataSource = new Cesium.CzmlDataSource();
viewer.dataSources.add(czmlDataSource);
czmlDataSource.loadUrl('../../SampleData/simple.czml');
// Create HUD
var hud = document.getElementById('toolbar');
hud.setAttribute('style', 'background: rgba(42,42,42,0.9); border-radius: 5px;');
var cartographic = new Cesium.Cartographic();
viewer.clock.onTick.addEventListener(function(clock) {
var entity = viewer.selectedEntity;
if (!Cesium.defined(entity)) {
hud.style.display = 'none';
} else {
hud.style.display = 'block';
var position = entity.position.getValue(clock.currentTime);
Cesium.Ellipsoid.WGS84.cartesianToCartographic(position, cartographic);
hud.innerHTML =
'Lon: ' + Cesium.Math.toDegrees(cartographic.longitude).toFixed(3) + ' deg<br/>' +
'Lat: ' + Cesium.Math.toDegrees(cartographic.latitude).toFixed(3) + ' deg<br/>' +
'Alt: ' + (cartographic.height * 0.001).toFixed(1) + ' km';
}
});
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
startup(Cesium);
} else if (typeof require === "function") {
require(["Cesium"], startup);
}
</script>
</body>
</html>
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