====== Animation Group Object ======

An Animation Group Object allows the users to change the objects visibility within a tree node in the 3D object manager with a time interval (in millisecond).

==== Creating an Animation Group ====

  - Right click on a tree node
  - Select New Object
  - Select Animation
  - Select Group Animation

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==== Group Animation's interface ====

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  * __Name____:__  the animation group name text box, the default name is “New Group Animation”
  * __Interval ____(ms):__  the animation interval spin-edit controls the animation speed (in millisecond)
  * __Show Objects’s Name in 3D Windows____:__  check box that allows the current visible object of the animation group appear in the bottom left corner of the 3D window \\
  * Player:
      * __Progress bar:__  showing the current progression of the animation
      * __Play____:__  starting the animation
      * __Pause____:__  pause the animation
      * __Reset____:__  restart the animation from the beginning
      * __Repeat____:__  if the checkbox is checked, the animation will automatically restart when it reaches the end
**TIPS : **

  * The visibility order will be reset when the animation form is closed
  * You can drag objects in the tree list to manage the order of the animation
  * The animation object can be reused by dragging it into another tree node of the object manager