57 lines
2.1 KiB
HTML
57 lines
2.1 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
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<meta name="description" content="Add HTML overlay using canvas coordinates.">
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<meta name="cesium-sandcastle-labels" content="Tutorials">
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<title>Cesium Demo</title>
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<script type="text/javascript" src="../Sandcastle-header.js"></script>
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<script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.20/require.js"></script>
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<script type="text/javascript">
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require.config({
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baseUrl : '../../../Source',
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waitSeconds : 60
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});
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</script>
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</head>
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<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
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<style>
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@import url(../templates/bucket.css);
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</style>
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<div id="cesiumContainer" class="fullSize"></div>
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<div id="loadingOverlay"><h1>Loading...</h1></div>
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<img id="htmlOverlay" style="position: absolute" src="../images/Cesium_Logo_overlay.png">
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<script id="cesium_sandcastle_script">
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function startup(Cesium) {
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'use strict';
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//Sandcastle_Begin
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var viewer = new Cesium.Viewer('cesiumContainer');
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// To geographically place an HTML element on top of the Cesium canvas, we use
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// scene.cartesianToCanvasCoordinates to map a world position to canvas x and y values.
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// This example places and img element, but any element will work.
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var htmlOverlay = document.getElementById('htmlOverlay');
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var scratch = new Cesium.Cartesian2();
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viewer.scene.preRender.addEventListener(function() {
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var position = Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883);
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var canvasPosition = viewer.scene.cartesianToCanvasCoordinates(position, scratch);
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if (Cesium.defined(canvasPosition)) {
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htmlOverlay.style.top = canvasPosition.y + 'px';
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htmlOverlay.style.left = canvasPosition.x + 'px';
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}
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});
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//Sandcastle_End
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Sandcastle.finishedLoading();
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}
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if (typeof Cesium !== 'undefined') {
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startup(Cesium);
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} else if (typeof require === 'function') {
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require(['Cesium'], startup);
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}
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</script>
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</body>
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</html>
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