Animations of camera around focal point
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
Right now, the only way to animate the camera is to set its position at various keyframes. The problem is that the most common camera animations are rotations around objects. The problem is, the linear interpolation of the position around the object is hard to set up and yields a very poor animation.
In addition to setting a position in a keyframe, it should also be possible to specify changes in the Azimuth and Elevation which will cause incremental rotations about the focal point (much like the respective methods in vtkCamera).