[vtkusers] Convert VTK 3D world coordinates to 3D DICOMcoordinate

[ericphd]

Thanks for the replies all...by looking at these data

For instance; 
Given the following info: 
0020,0032  Image Position (Patient): -88.985817\-139.832184\-17.698400 

0020,0037  Image Orientation (Patient): 
0.998675\0.045472\-0.024109\-0.045473\0.998965\0.000763 

0028,0030  Pixel Spacing: 0.468749\0.468756 

And the VTK world coordinates generated are (x, y, z) 
-2.23475 6.95207 17.536 
0.190571 5.62917 17.536 

1. Why the VTK world generated for the z value is +17 ish and  for the image
position the z value is -17 ish? I would assume the z value should be -17
ish similar tu the z value in Image Position Patient.

2. How do i know that the coordinates generated are in 3D plane or not?

3. And if they are not in 3D plane can I still do the conversion? How?

Thanks a lot...i really appreaciate it.
Eric



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