[vtkusers] vtkQuadraticTetra

[Mathieu Malaterre]

alan . wrote:
> Hi,
>  
> 1)
> I'm confused with how they have described the ordering of the nodes in 
> the vtkQuadraticTetra:
> It says:
> " The ordering of the ten points defining the cell is point ids 
> (0-3,4-9) where ids 0-3 are the four tetra vertices; and point ids 4-9 
> are the midedge nodes between (0,1), (1,2), (2,3), (3,0), (0,3), (1,3), 
> and (2,3). "
>  
> First of all, there are onlly 6 edges in a tetra - so why are there 7 
> midedge nodes? And what does it mean to have midedge nodes at both (3,0) 
> and (0,3), and they have (2,3) twice as well ??

This is already fixed in current CVS:

http://vtk.org/cgi-bin/cvsweb.cgi/VTK/Common/vtkQuadraticTetra.h.diff?r1=1.9&r2=1.10&cvsroot=VTK

Anyway, thanks for report
mathieu