163 lines
5.7 KiB
HTML
163 lines
5.7 KiB
HTML
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<!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="Configure viewer to add a button enabling look at a mobile device with cardboard.">
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<meta name="cesium-sandcastle-labels" content="Beginner, 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 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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<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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var viewer = new Cesium.Viewer('cesiumContainer', {
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vrButton: true,
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terrainProvider: Cesium.createWorldTerrain()
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});
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// Click the VR button in the bottom right of the screen to switch to VR mode.
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viewer.scene.globe.enableLighting = true;
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viewer.scene.globe.depthTestAgainstTerrain = true;
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// Follow the path of a plane. See the interpolation Sandcastle example.
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Cesium.Math.setRandomNumberSeed(3);
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var start = Cesium.JulianDate.fromDate(new Date(2015, 2, 25, 16));
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var stop = Cesium.JulianDate.addSeconds(start, 360, new Cesium.JulianDate());
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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;
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viewer.clock.multiplier = 1.0;
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viewer.clock.shouldAnimate = true;
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function computeCirclularFlight(lon, lat, radius) {
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var property = new Cesium.SampledPositionProperty();
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var startAngle = Cesium.Math.nextRandomNumber() * 360.0;
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var endAngle = startAngle + 360.0;
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var increment = (Cesium.Math.nextRandomNumber() * 2.0 - 1.0) * 10.0 + 45.0;
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for (var i = startAngle; i < endAngle; i += increment) {
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var radians = Cesium.Math.toRadians(i);
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var timeIncrement = i - startAngle;
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var time = Cesium.JulianDate.addSeconds(start, timeIncrement, new Cesium.JulianDate());
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var position = Cesium.Cartesian3.fromDegrees(lon + (radius * 1.5 * Math.cos(radians)), lat + (radius * Math.sin(radians)), Cesium.Math.nextRandomNumber() * 500 + 1800);
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property.addSample(time, position);
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}
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return property;
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}
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var longitude = -112.110693;
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var latitude = 36.0994841;
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var radius = 0.03;
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var modelURI = '../../SampleData/models/CesiumBalloon/CesiumBalloon.glb';
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var entity = viewer.entities.add({
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availability : new Cesium.TimeIntervalCollection([new Cesium.TimeInterval({
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start : start,
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stop : stop
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})]),
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position : computeCirclularFlight(longitude, latitude, radius),
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model : {
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uri : modelURI,
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minimumPixelSize : 64
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}
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});
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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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// Set initial camera position and orientation to be when in the model's reference frame.
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var camera = viewer.camera;
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camera.position = new Cesium.Cartesian3(0.25, 0.0, 0.0);
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camera.direction = new Cesium.Cartesian3(1.0, 0.0, 0.0);
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camera.up = new Cesium.Cartesian3(0.0, 0.0, 1.0);
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camera.right = new Cesium.Cartesian3(0.0, -1.0, 0.0);
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viewer.scene.postUpdate.addEventListener(function(scene, time) {
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var position = entity.position.getValue(time);
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if (!Cesium.defined(position)) {
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return;
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}
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var transform;
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if (!Cesium.defined(entity.orientation)) {
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transform = Cesium.Transforms.eastNorthUpToFixedFrame(position);
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} else {
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var orientation = entity.orientation.getValue(time);
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if (!Cesium.defined(orientation)) {
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return;
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}
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transform = Cesium.Matrix4.fromRotationTranslation(Cesium.Matrix3.fromQuaternion(orientation), position);
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}
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// Save camera state
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var offset = Cesium.Cartesian3.clone(camera.position);
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var direction = Cesium.Cartesian3.clone(camera.direction);
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var up = Cesium.Cartesian3.clone(camera.up);
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// Set camera to be in model's reference frame.
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camera.lookAtTransform(transform);
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// Reset the camera state to the saved state so it appears fixed in the model's frame.
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Cesium.Cartesian3.clone(offset, camera.position);
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Cesium.Cartesian3.clone(direction, camera.direction);
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Cesium.Cartesian3.clone(up, camera.up);
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Cesium.Cartesian3.cross(direction, up, camera.right);
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});
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// Add a few more balloons flying with the one the viewer is in.
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var numBalloons = 12;
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for (var i = 0; i < numBalloons; ++i) {
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var balloonRadius = (Cesium.Math.nextRandomNumber() * 2.0 - 1.0) * 0.01 + radius;
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var balloon = viewer.entities.add({
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availability : new Cesium.TimeIntervalCollection([new Cesium.TimeInterval({
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start : start,
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stop : stop
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})]),
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position : computeCirclularFlight(longitude, latitude, balloonRadius),
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model : {
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uri : modelURI,
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minimumPixelSize : 64
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}
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});
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balloon.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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//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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