[vtkusers] Re: drawing lines on curve surface

[Tao-Pak Chris Tsui]

I am not sure if I understand what you mean by
inverted y-axis.. but this raised another question for
me..  the skull object I have appeared to be the
mirror object of the actual skull.. what's left is on
the right and vice versa....  

and the skull is upside down on the after I rendered
it.. is that because of the odering of the CT data I
have or it's caused by something else?

how could I tell if its showing the mirror image or
not?

Thanks




 
> Message: 1
> Date: Fri, 24 Nov 2000 15:25:36 +0100
> To: Fabrice Vincent
> <fabrice.vincent at creatis.insa-lyon.fr>
> From: Sebastien BARRE <seb-ml-vtk at barre.nom.fr>
> Subject: Re: [vtkusers] drawing lines on curve
> surface
> Cc: VTK List <vtkusers at public.kitware.com>
> 
> At 24/11/2000 15:03, Fabrice Vincent wrote:
> 
> 
> >The strange behaviour of your picker may come from
> the way the variables x 
> >and y are defined, because I think the coordinate
> system of a tcl widget 
> >and a vtk window are different.
> 
> Yes I know, the coordinates I were using were
> already converted, they were 
> relative to the viewport (0,0) at lower left.
> 
> 
> >proc SelectPoint { widget  x y } {
> ># get the height of the tcl widget
> >set WindowY [lindex [$widget configure -height] 4]
> 
> I would have immediately noticed it, because the Y
> axes would have been 
> inverted :)
> 
> Thanks anyway
> 
> 


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