[vtkusers] Position of contour

[mehrwald at ira.uka.de]

Hi all,

I use a contour filter to get the contour of the object my camera  
sees. I am wondering where the contour is placed then because it is  
not where the object is.
My camera looks like this:

vtkOpenGLCamera (000000000FD5BC30)
Debug: Off
Modified Time: 3680
Reference Count: 3
Registered Events: (none)
ClippingRange: (2599.78, 2830.14)
DirectionOfProjection: (-0.0537539, 0.998219, 0.0258868)
Distance: 1
EyeAngle: 2
FocalDisk: 1
FocalPoint: (662.086, -2596.26, -15.2492)
ViewShear: (0, 0, 1)
ParallelProjection: Off
ParallelScale: 1
Position: (662.14, -2597.26, -15.2751)
Stereo: Off
Left Eye: 1
2012-03-23 14:12:07 Cout: Thickness: 230.356
ViewAngle: 102
UseHorizontalViewAngle: 0
UserTransform: (none)
(none)
ViewPlaneNormal: (0.0537539, -0.998219, -0.0258868)
ViewUp: (-0.956019, -0.0589325, 0.287323)
WindowCenter: (0, 0)
HeadTracked: 0

Then I use the window to image filter and on the output of that the  
contour filter. Here are the center points of my object and the  
resulting center point of the contour:

center data: 64.1 30.85 81.8
center contour: 2778.6 1826.64 -2734.9

Why is the contour so far away from the object? This is actually not a  
big deal because I can translate it back but unfortunately the  
orientation is lost as well.
Can anyone please tell my how to get the countour back over my  
original object with the correct orienation?

Thanks,
Markus