[vtkusers] Stretching and shrinking 2D images

[Tanya S]

Hi Julien,
I also had the same problem when I use vtkActor2D and vtkImageMapper.
Then I change the pipeline using vtkImageMapToWindowLevelColors and vtkImageActor, and it works fine.
 
Hope this helps.
 
.Tanya.

julien.barneoud at kodak.com wrote:

Hi all, 

I am trying to stretch or shrink an image to fit the window size. 
- When sizing its parent window, I also size the render window to make it have the same size as its parent. 
- I am using a vtkImageMapper and a vtkActor2D to display the image into the render window. I have enabled RenderToRectangle functionnality into the vtkImageMapper , and set correct Position (0.0 0.0) and Position2 (1.0 1.0) of the vtkActor2D. 

When I resize the window, making it larger than the raw image dimension, the image is well stretched, but if I reduce the size of the window to something smaller than the raw image size, the image is not shrunk to fit the window size: it is displayed with a 1.0 zoom factor (and so, only a part of the image is visible). 

Is there any possibility to shrink a 2D image using vtkImageMapper and vtkActor2D, or should I use another set of classes ? 

Thanks in advance for your help. 

Regards, 

Julien BARNEOUD_______________________________________________
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