Planar Quadrangle Quality Measures: Is There Really A Choice ?
Pebay, Philippe P.
Proceedings, 11th International Meshing Roundtable, Springer-Verlag, September 15-18 2002
11th International Meshing Roundtable
Ithaca, New York, USA.
September 15-18 2002
Sandia National Laboratories, Livermore, CA
In this article some new results are presented about planar quadrangle quality measures. On the one hand, a
modification of the triangle quality measure based on the Frobenius norm is proposed, in order to comply with the
case where the reference element is no longer equilateral, but a right isosceles triangle. Provided this modification,
a natural use of the Frobenius norm for quadrangular elements is proposed. On the other hand, generalizations of
two triangle quality measures, based on edge to inradius ratios, to planar quadrangles are proposed and justified,
and their limitations, depending on user's expectations, are exhibited, justifying the use of a more complex quality
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