Partial Differential Equation Toolbox™

pdetriq - Triangle quality measure

Syntax

q=pdetriq(p,t)

Description

q=pdetriq(p,t) returns a triangle quality measure given mesh data.

The triangular mesh is given by the mesh data p, e, and t. For details on the mesh data representation, see initmesh.

The triangle quality is given by the formula

where a is the area and h₁, h₂, and h₃ the side lengths of the triangle.

If q > 0.6 the triangle is of acceptable quality. q = 1 when h₁ = h₂ = h₃.

Reference

Bank, Randolph E., PLTMG: A Software Package for Solving Elliptic Partial Differential Equations, User's Guide 6.0, Society for Industrial and Applied Mathematics, Philadelphia, PA, 1990.

See Also

pdetrg

poiasma