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Hi Peter,<br><br>
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.<br><br>
- Amy<br><br>
At 01:01 PM 2/3/2004 +0100, Boettcher, Dr. Peter wrote:<br>
<blockquote type=cite class=cite cite><font face="arial" size=2>Hi,</font><br>
<br>
<font face="arial" size=2>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.</font><br>
<br>
<font face="arial" size=2>Regards, Peter.</font></blockquote></html>