[vtkusers] vtkFollower/vtkVectorText and SetScale Problem...

[Jeff Lee]

Andrea Gavana wrote:

>Selon Jeff Lee <jeff at cdnorthamerica.com>:
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>>Hi Andrea,
>>Try vtkTextActor.  You can make it use scaled text (as a fraction of 
>>viewport height) and position it in world coordinates(it will follow 
>>that world coordinate, and always face the camera).  Have a look at the 
>>vtk examples for vtkTextActor linked from the man pages.
>>-Jeff
>>    
>>
>
>Hello Jeff,
>
>      Thanks for your interest on my question. I've taken a look to the 
>examples provided for vtkTextActor (for Python, I only have TestText.py), but 
>it seems to me that it can be used only to place text in a 2D world... and I 
>have a 3D structured grid filled with scalars and many other Actors in my VTK 
>window. Am I wrong? Can I use it also in a 3D world with 3D coordinates to 
>positioning it?
>  
>
yep, xactor.GetPositionCoordinate().SetCoordinateSystemToWorld() will do 
the trick.  Then xactor.GetPositionCoordinate().SetValue(0.0, 0.0, 0.0) 
will set the text position at 0,0,0.
-J

>Sorry for the probably silly question...
>
>Andrea.
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