mirror of https://github.com/CesiumGS/cesium.git
218 lines
7.5 KiB
HTML
218 lines
7.5 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="Construct new data points within the range of a discrete set of known data points."
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/>
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<meta name="cesium-sandcastle-labels" content="Showcases" />
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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 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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<div id="toolbar">
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<div id="interpolationMenu"></div>
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</div>
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<script id="cesium_sandcastle_script">
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window.startup = async function (Cesium) {
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"use strict";
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//Sandcastle_Begin
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const viewer = new Cesium.Viewer("cesiumContainer", {
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infoBox: false, //Disable InfoBox widget
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selectionIndicator: false, //Disable selection indicator
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shouldAnimate: true, // Enable animations
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terrain: Cesium.Terrain.fromWorldTerrain(),
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});
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//Enable lighting based on the sun position
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viewer.scene.globe.enableLighting = true;
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//Enable depth testing so things behind the terrain disappear.
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viewer.scene.globe.depthTestAgainstTerrain = true;
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//Set the random number seed for consistent results.
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Cesium.Math.setRandomNumberSeed(3);
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//Set bounds of our simulation time
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const start = Cesium.JulianDate.fromDate(new Date(2015, 2, 25, 16));
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const stop = Cesium.JulianDate.addSeconds(start, 360, new Cesium.JulianDate());
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//Make sure viewer is at the desired time.
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viewer.clock.startTime = start.clone();
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viewer.clock.stopTime = stop.clone();
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viewer.clock.currentTime = start.clone();
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viewer.clock.clockRange = Cesium.ClockRange.LOOP_STOP; //Loop at the end
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viewer.clock.multiplier = 10;
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//Set timeline to simulation bounds
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viewer.timeline.zoomTo(start, stop);
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//Generate a random circular pattern with varying heights.
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function computeCirclularFlight(lon, lat, radius) {
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const property = new Cesium.SampledPositionProperty();
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for (let i = 0; i <= 360; i += 45) {
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const radians = Cesium.Math.toRadians(i);
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const time = Cesium.JulianDate.addSeconds(start, i, new Cesium.JulianDate());
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const position = Cesium.Cartesian3.fromDegrees(
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lon + radius * 1.5 * Math.cos(radians),
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lat + radius * Math.sin(radians),
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Cesium.Math.nextRandomNumber() * 500 + 1750,
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);
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property.addSample(time, position);
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//Also create a point for each sample we generate.
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viewer.entities.add({
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position: position,
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point: {
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pixelSize: 8,
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color: Cesium.Color.TRANSPARENT,
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outlineColor: Cesium.Color.YELLOW,
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outlineWidth: 3,
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},
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});
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}
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return property;
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}
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//Compute the entity position property.
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const position = computeCirclularFlight(-112.110693, 36.0994841, 0.03);
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//Actually create the entity
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const entity = viewer.entities.add({
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//Set the entity availability to the same interval as the simulation time.
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availability: new Cesium.TimeIntervalCollection([
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new Cesium.TimeInterval({
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start: start,
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stop: stop,
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}),
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]),
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//Use our computed positions
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position: position,
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//Automatically compute orientation based on position movement.
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orientation: new Cesium.VelocityOrientationProperty(position),
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//Load the Cesium plane model to represent the entity
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model: {
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uri: "../../SampleData/models/CesiumAir/Cesium_Air.glb",
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minimumPixelSize: 64,
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},
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//Show the path as a pink line sampled in 1 second increments.
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path: {
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resolution: 1,
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material: new Cesium.PolylineGlowMaterialProperty({
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glowPower: 0.1,
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color: Cesium.Color.YELLOW,
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}),
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width: 10,
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},
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});
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//Add button to view the path from the top down
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Sandcastle.addDefaultToolbarButton("View Top Down", function () {
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viewer.trackedEntity = undefined;
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viewer.zoomTo(
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viewer.entities,
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new Cesium.HeadingPitchRange(0, Cesium.Math.toRadians(-90)),
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);
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});
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//Add button to view the path from the side
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Sandcastle.addToolbarButton("View Side", function () {
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viewer.trackedEntity = undefined;
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viewer.zoomTo(
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viewer.entities,
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new Cesium.HeadingPitchRange(
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Cesium.Math.toRadians(-90),
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Cesium.Math.toRadians(-15),
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7500,
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),
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);
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});
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//Add button to track the entity as it moves
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Sandcastle.addToolbarButton("View Aircraft", function () {
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viewer.trackedEntity = entity;
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});
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Sandcastle.addToolbarMenu([
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{
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text: "Tracking reference frame: East-North-Up",
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onselect: function () {
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entity.trackingReferenceFrame = Cesium.TrackingReferenceFrame.ENU;
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},
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},
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{
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text: "Tracking reference frame: Inertial",
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onselect: function () {
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entity.trackingReferenceFrame = Cesium.TrackingReferenceFrame.INERTIAL;
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},
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},
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]);
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//Add a combo box for selecting each interpolation mode.
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Sandcastle.addToolbarMenu(
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[
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{
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text: "Interpolation: Linear Approximation",
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onselect: function () {
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entity.position.setInterpolationOptions({
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interpolationDegree: 1,
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interpolationAlgorithm: Cesium.LinearApproximation,
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});
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},
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},
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{
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text: "Interpolation: Lagrange Polynomial Approximation",
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onselect: function () {
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entity.position.setInterpolationOptions({
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interpolationDegree: 5,
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interpolationAlgorithm: Cesium.LagrangePolynomialApproximation,
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});
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},
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},
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{
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text: "Interpolation: Hermite Polynomial Approximation",
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onselect: function () {
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entity.position.setInterpolationOptions({
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interpolationDegree: 2,
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interpolationAlgorithm: Cesium.HermitePolynomialApproximation,
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});
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},
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},
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],
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"interpolationMenu",
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);
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//Sandcastle_End
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};
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if (typeof Cesium !== "undefined") {
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window.startupCalled = true;
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window.startup(Cesium).catch((error) => {
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"use strict";
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console.error(error);
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});
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Sandcastle.finishedLoading();
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}
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</script>
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</body>
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</html>
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