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

Will Schroeder will.schroeder at kitware.com
Thu May 28 05:53:39 EDT 2015

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.
28 Corporate Drive
Clifton Park, NY 12065
will.schroeder at kitware.com
(518) 881-4902
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