mesh quality measure?
 

hi
I want to kown how compute EquiSize Skew in gambit? Have you kown it?
i find Qevs=(Seq-S)/Seq in gambit user guide.
S is the area(2D) or volume(3D) of the mesh element,and Seq is the maximum area (2D) or volume (3D) of an equilateral cell with indetical circumscribing radius.
I do not understand Seq. how can i get it for random tetrahedral?
for example t0(0,0,0) t1(1,0,0) t2(0.5,0.7,0) t3(0.5,0.1,0.3)
Seq=?