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86 lines
2.7 KiB
HTML
86 lines
2.7 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
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name="viewport"
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content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
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/>
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<meta
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name="description"
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content="NASA-generated imagery of the earth at night hosted on Cesium ion. Also known as Black Marble and Night Lights."
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/>
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<meta name="cesium-sandcastle-labels" content="ion Assets" />
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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
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type="text/javascript"
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src="../../../Build/CesiumUnminified/Cesium.js"
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nomodule
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></script>
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<script type="module" src="../load-cesium-es6.js"></script>
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</head>
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<body
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class="sandcastle-loading"
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data-sandcastle-bucket="bucket-requirejs.html"
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>
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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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<div id="toolbar"></div>
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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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// The Earth at Night, also known as Black Marble 2017 and Night Lights
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var viewer = new Cesium.Viewer("cesiumContainer", {
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imageryProvider: new Cesium.IonImageryProvider({ assetId: 3812 }),
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});
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// The rest of the code is for dynamic lighting
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var dynamicLighting = false;
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viewer.clock.multiplier = 4000;
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var imageryLayers = viewer.imageryLayers;
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var nightLayer = imageryLayers.get(0);
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var dayLayer = imageryLayers.addImageryProvider(
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new Cesium.IonImageryProvider({
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assetId: 3845,
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})
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);
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imageryLayers.lowerToBottom(dayLayer);
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function updateLighting(dynamicLighting) {
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dayLayer.show = dynamicLighting;
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viewer.scene.globe.enableLighting = dynamicLighting;
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viewer.clock.shouldAnimate = dynamicLighting;
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// If dynamic lighting is enabled, make the night imagery invisible
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// on the lit side of the globe.
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nightLayer.dayAlpha = dynamicLighting ? 0.0 : 1.0;
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}
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updateLighting(dynamicLighting);
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Sandcastle.addToggleButton(
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"Dynamic lighting",
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dynamicLighting,
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function (checked) {
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updateLighting(checked);
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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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window.startupCalled = true;
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startup(Cesium);
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}
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</script>
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</body>
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</html>
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