[vtkusers] Manipulte a vtkActor through its vtkMatrix4x4

[Amy Henderson]

Hi Peter,

After you called SetUserMatrix on the actor, did you call Render on the 
vtkRenderWindow?  A Render() call would need to happen for the results of 
changing to matrix to be seen.

- Amy

At 01:01 PM 2/3/2004 +0100, Boettcher, Dr. Peter wrote:
>Hi,
>
>I would like to manipulate a 3D-object (vtkActor) using vtkMatrix4x4. 
>Unfortunately once the actor has been drawn, changing the matrix 
>(actor->SetUserMatrix) results in no change. This works only once before 
>the actor has been added to the vtkRenderer. Up to now I remove the actor, 
>delete it and construct a new one with the modified user-matrix each time 
>I like to manipulate it.
>
>Regards, Peter.
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