Partial Differential Equations Toolbox    
pdetriq

Triangle quality measure.

Synopsis

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. Details on the mesh data representation can be found in the entry on 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.

See Also
initmesh, jigglemesh, refinemesh

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.


pdetrg poiasma