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Merge pull request #12194 from jfayot/feat_tracking_reference_frame
Added Entity.trackingReferenceFrame
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| <!doctype html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="utf-8" /> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> | ||
| <meta | ||
| name="viewport" | ||
| content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" | ||
| /> | ||
| <meta | ||
| name="description" | ||
| content="Apply different tracking reference frames to tracked entities." | ||
| /> | ||
| <meta name="cesium-sandcastle-labels" content="Beginner, Showcases" /> | ||
| <title>Cesium Demo</title> | ||
| <script type="text/javascript" src="../Sandcastle-header.js"></script> | ||
| <script | ||
| type="text/javascript" | ||
| src="../../../Build/CesiumUnminified/Cesium.js" | ||
| nomodule | ||
| ></script> | ||
| <script type="module" src="../load-cesium-es6.js"></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"> | ||
| window.startup = async function (Cesium) { | ||
| "use strict"; | ||
| //Sandcastle_Begin | ||
| // This example illustrates the possible tracking reference frames | ||
| // apllied to two different entities: a near surface slow moving | ||
| // object and a satellite | ||
| const viewer = new Cesium.Viewer("cesiumContainer", { | ||
| terrain: Cesium.Terrain.fromWorldTerrain(), | ||
| shouldAnimate: true, | ||
| }); | ||
|
|
||
| const startTime = Cesium.JulianDate.fromIso8601("2012-03-15T10:00:00Z"); | ||
|
|
||
| const satelliteStopTime = Cesium.JulianDate.fromIso8601("2012-03-16T10:00:00Z"); | ||
|
|
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| const droneStopTime = Cesium.JulianDate.fromIso8601("2012-03-15T10:00:30Z"); | ||
|
|
||
| const dataSource = await viewer.dataSources.add( | ||
| Cesium.CzmlDataSource.load("../../SampleData/tracking.czml"), | ||
| ); | ||
|
|
||
| const satellite = dataSource.entities.getById("Satellite/ISS"); | ||
| const drone = dataSource.entities.getById("CesiumDrone"); | ||
|
|
||
| satellite.viewFrom = new Cesium.Cartesian3(-300, 20, 100); | ||
| drone.viewFrom = new Cesium.Cartesian3(-50, 0, 5); | ||
|
|
||
| Sandcastle.addDefaultToolbarButton("Satellites", function () { | ||
| viewer.clock.stopTime = satelliteStopTime; | ||
| viewer.clock.currentTime = startTime; | ||
| viewer.clock.multiplier = 30; | ||
| viewer.timeline.zoomTo(startTime, satelliteStopTime); | ||
| viewer.trackedEntity = satellite; | ||
| }); | ||
|
|
||
| Sandcastle.addToolbarButton("Drone", function () { | ||
| viewer.clock.stopTime = droneStopTime; | ||
| viewer.clock.currentTime = startTime; | ||
| viewer.clock.multiplier = 1; | ||
| viewer.timeline.zoomTo(startTime, droneStopTime); | ||
| viewer.trackedEntity = drone; | ||
| }); | ||
|
|
||
| Sandcastle.addToolbarMenu([ | ||
| { | ||
| text: "Tracking reference frame: Auto-detect", | ||
| onselect: function () { | ||
| satellite.trackingReferenceFrame = Cesium.TrackingReferenceFrame.AUTODETECT; | ||
| drone.trackingReferenceFrame = Cesium.TrackingReferenceFrame.AUTODETECT; | ||
| }, | ||
| }, | ||
| { | ||
| text: "Tracking reference frame: Inertial", | ||
| onselect: function () { | ||
| satellite.trackingReferenceFrame = Cesium.TrackingReferenceFrame.INERTIAL; | ||
| drone.trackingReferenceFrame = Cesium.TrackingReferenceFrame.INERTIAL; | ||
| }, | ||
| }, | ||
| { | ||
| text: "Tracking reference frame: Velocity", | ||
| onselect: function () { | ||
| satellite.trackingReferenceFrame = Cesium.TrackingReferenceFrame.VELOCITY; | ||
| drone.trackingReferenceFrame = Cesium.TrackingReferenceFrame.VELOCITY; | ||
| }, | ||
| }, | ||
| ]); | ||
| //Sandcastle_End | ||
| }; | ||
| if (typeof Cesium !== "undefined") { | ||
| window.startupCalled = true; | ||
| window.startup(Cesium).catch((error) => { | ||
| "use strict"; | ||
| console.error(error); | ||
| }); | ||
| Sandcastle.finishedLoading(); | ||
| } | ||
| </script> | ||
| </body> | ||
| </html> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| /** | ||
| * Constants for identifying well-known tracking reference frames. | ||
| * | ||
| * @enum {number} | ||
| */ | ||
| const TrackingReferenceFrame = { | ||
| /** | ||
| * Auto-detect algorithm. The reference frame used to track the Entity will | ||
| * be automatically selected based on its trajectory: near-surface slow moving | ||
| * objects will be tracked in the entity's local east-north-up reference | ||
| * frame, while faster objects like satellites will use VVLH (Vehicle Velocity, | ||
| * Local Horizontal). | ||
| * | ||
| * @type {number} | ||
| * @constant | ||
| */ | ||
| AUTODETECT: 0, | ||
|
|
||
| /** | ||
| * The entity's inertial reference frame. If entity has no defined orientation | ||
| * property, a {@link VelocityOrientationProperty} is used instead, thus | ||
| * falling back to <code>TrackingReferenceFrame.VELOCITY</code>. | ||
| * When selected, the auto-detect algorithm is overridden. | ||
| * | ||
| * @type {number} | ||
| * @constant | ||
| */ | ||
| INERTIAL: 1, | ||
|
|
||
| /** | ||
| * The entity's inertial reference frame with orientation fixed to its | ||
| * {@link VelocityOrientationProperty}, ignoring its own orientation. | ||
| * When selected, the auto-detect algorithm is overridden. | ||
| * | ||
| * @type {number} | ||
| * @constant | ||
| */ | ||
| VELOCITY: 2, | ||
| }; | ||
| export default Object.freeze(TrackingReferenceFrame); |
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