The keyframe for globe camera animation.
Product Availability
Supported Platforms
Interfaces
| Interfaces | Description |
|---|---|
| IAGKeyframe (esriAnimation) | Provides access to keyframes of animated objects. |
| IClone (esriSystem) | Provides access to members that control cloning of objects. |
| IKeyframe (esri3DAnalyst) | Provides access to keyframe of animated objects. |
Remarks
GlobeCameraKeyframe coclass is used for creating Globe Camera animations. This coclass manages the properties and methods that are applicable to a Globe Camera keyframe. There are 9 globe camera properties - Orientation, Target Lat., Target Lon., Target Alt., Observer Lat., Observer Lon., Observer Alt., View Angle and Roll Offset, that can be used in a globe camera animation through its IKeyframe interface.
Creates an animation, which rotates the globe by using the IAGKeyframe::Apply method. Note: To use the code below, you have to reference ESRI's Animation library.
private void InterpolateGlobeCameraKeyframes(ESRI.ArcGIS.GlobeCore.IGlobe globe)
{
// get Globe Camera in the globe display
ESRI.ArcGIS.GlobeCore.IGlobeDisplay globeDisplay = globe.GlobeDisplay;
ESRI.ArcGIS.Analyst3D.ISceneViewer sceneViewer = globeDisplay.ActiveViewer;
ESRI.ArcGIS.Analyst3D.ICamera camera = sceneViewer.Camera;
ESRI.ArcGIS.GlobeCore.IGlobeCamera globeCamera = (ESRI.ArcGIS.GlobeCore.IGlobeCamera)camera; // Explicit Cast
// create keyframe
ESRI.ArcGIS.Animation.IAGKeyframe AGKeyframeCls = new ESRI.ArcGIS.GlobeCore.GlobeCameraKeyframeClass();
// set active properties
ESRI.ArcGIS.esriSystem.ILongArray longArrayCls = new ESRI.ArcGIS.esriSystem.LongArrayClass();
longArrayCls.Add(4); // Observer Lat.
longArrayCls.Add(5); // Observer Lon.
longArrayCls.Add(6); // Observer Alt.
AGKeyframeCls.ActiveProperties = longArrayCls;
ESRI.ArcGIS.Animation.IAGAnimationType AGAnimationTypeCls = new ESRI.ArcGIS.GlobeCore.AnimationTypeGlobeCameraClass();
ESRI.ArcGIS.Animation.IAGAnimationTrack AGAnimationTrackCls = new ESRI.ArcGIS.Animation.AGAnimationTrackClass();
AGAnimationTrackCls.AnimationType = AGAnimationTypeCls;
ESRI.ArcGIS.Animation.IAGAnimationContainer AGAnimationContainer = (IAGAnimationContainer)globe; // Explicit Cast
// animation loop
double longitude;
for (longitude = 0; longitude <= 360; longitude++)
{
AGKeyframeCls.set_PropertyValue(4, 0.0); // set latitude
AGKeyframeCls.set_PropertyValue(5, longitude); // set longitude
AGKeyframeCls.set_PropertyValue(6, 20000.0); // set altitude
AGKeyframeCls.Apply(AGAnimationTrackCls, AGAnimationContainer, globeCamera); // apply it
globeDisplay.RefreshViewers();
}
}