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GlobeLayerKeyframe Class (ArcObjects .NET 10.8 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > ArcObjects namespaces > GlobeCore > ESRI.ArcGIS.GlobeCore > Classes > G > GlobeLayerKeyframe Class
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GlobeLayerKeyframeClass Class

The keyframe for globe layer animation.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux


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.


GlobeCameraKeyframe coclass is used for creating Globe Layer animations.  This coclass manages the properties and methods that are applicable to a globe layer keyframe.  There are 2 globe layer properties - Visibility and Transparency, that can be used in a globe layer animation through its IKeyframe interface.


The following code shows how to create a Globe Layer animation to make a layer transparent by adding GlobeLayerKeyframes  to an animation track. Note: To use the code below, you have to reference ESRI's Animation library.

private void GlobeLayerKeyframes_Transparency(ESRI.ArcGIS.GlobeCore.IGlobe globe, ESRI.ArcGIS.Carto.ILayer layer)
 ESRI.ArcGIS.GlobeCore.IGlobeDisplay globeDisplay = globe.GlobeDisplay;
 ESRI.ArcGIS.Analyst3D.IScene scene = globeDisplay.Scene;
 // Get a handle to the animation extension
 ESRI.ArcGIS.Analyst3D.IBasicScene2 basicScene2 = (ESRI.ArcGIS.Analyst3D.IBasicScene2)scene; // Explicit Cast
 ESRI.ArcGIS.Animation.IAnimationExtension animationExtension = basicScene2.AnimationExtension;

 // create an animation track
 ESRI.ArcGIS.Animation.IAGAnimationTrack animationTrack = new AnimationTrackClass();
 ESRI.ArcGIS.Animation.IAGAnimationTrackKeyframes animationTrackKeyframes = (ESRI.ArcGIS.Animation.IAGAnimationTrackKeyframes)animationTrack; //Explicit cast
 // set the type before adding keyframes
 ESRI.ArcGIS.Animation.IAGAnimationType animationType = new AnimationTypeGlobeLayerClass();
 animationTrack.AnimationType = animationType;
 // create four keyframes and add them to the track
 ESRI.ArcGIS.Animation.IAGKeyframe keyframe;
 int nKeyframes = 4;
 int numKeyframe;

 for (numKeyframe = 0; numKeyframe <= nKeyframes - 1; numKeyframe++)
  keyframe = new GlobeLayerKeyframeClass();
  animationTrackKeyframes.InsertKeyframe(keyframe, -1);
  keyframe.TimeStamp = 1.0 * numKeyframe / (nKeyframes - 1); // set transparency values
  keyframe.set_PropertyValue(0, true); // set visibility
  keyframe.set_PropertyValue(1, 100 * numKeyframe / (nKeyframes - 1));   // set transparency

 // set active properties in the track
 ILongArray longArrayCls = new LongArrayClass();
 longArrayCls.Add (0);
 longArrayCls.Add (1);
 animationTrackKeyframes.ActiveProperties = longArrayCls;

 // attach the track to the first layer in TOC
 animationTrack.AttachObject (layer);
 // animation loop
 ESRI.ArcGIS.Animation.IAGAnimationContainer AGAnimationContainer = animationExtension.AnimationTracks.AnimationObjectContainer;

 double time;
 double iteration;
 for (iteration = 0; iteration < 500; iteration++)
  time = iteration / 500;
  // interpolate by using track
  animationTrack.InterpolateObjectProperties(AGAnimationContainer, time);