Bug in sliceOrder?

[Eric Wies]

Ana Cugat wrote:
> 
> I'm using the sliceOrder.tcl source that we can find in the
> ~vtk/graphics/examplesTcl/frog directory to get always the same orientation.
> 
> Isnt' there a bug in the is (inferior to superior) transform?
> the transform is at follows:
> 
> 1  0  0  0
> 0  0 -1  0
> 0 -1  0  0
> 0  0  0  1
> 
> so it flips the image.. shouldn't it be?
> 
> 1  0  0  0
> 0  0 -1  0
> 0  1  0  0
> 0  0  0  1
> 
> Thanks,
> 
> Ana
> 
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> 
>

Hello, i've got the same problem, Matrix must be inverted before using.
Does anyone use vtkMatrix4x4 and vtkTransform::SetMatrix ?

If i invert Matrix the picture is corect, else the translation and
rotations are oposite, i don't know if i made a mistake but if i
understand the using of matrix, the coordinate are compute by
premultiply (Matrix * Point). So what's wrong ?

Thanks for answers
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