[vtk-developers] Bug with pcoords[2] in vtkQuad::EvaluatePosition()

[Will Schroeder]

On Thu, May 28, 2015 at 3:40 AM, Mathieu Westphal <
mathieu.westphal at kitware.com> wrote:

> Do we set it to 0 ? do you know why vtkTriangle compute it this way when
> this is a 2D cell? (vtkTriangle.cxx:142)


I believe this (1-r-s) his follows from the isoparametric coordinates for
triangular elements. Check any standard finite element reference.



-- 
William J. Schroeder, PhD
Kitware, Inc.
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