Arbortext IsoDraw > User's Reference > Menus > Objects Menu > Edit Animation > Special Features in 3D Animation > General
  
General
When you import, paste or place 3D data you can create 3D animations in 3D mode.
When you have created an animation in 3D mode, it takes with it all 3D information when it is projected into a 2D illustration.
* 
Drawings for which you have created an animation in 3D mode can only be projected into a 2D illustration using the keep 3D data option (see Working in 3D Mode).
As this type of projection allows you to switch back to 3D mode at any time, the animation can be edited further.
You cannot create animations for a 3D drawing when in 2D mode.