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Commit 81aa5170 authored by Christophe Geuzaine's avatar Christophe Geuzaine
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$Id: FAQ,v 1.61 2005-05-13 05:09:08 geuzaine Exp $ $Id: FAQ,v 1.62 2005-06-04 03:28:31 geuzaine Exp $
This is the Gmsh FAQ This is the Gmsh FAQ
...@@ -283,6 +283,17 @@ fields. There is also one additional clipping plane available for ...@@ -283,6 +283,17 @@ fields. There is also one additional clipping plane available for
"cutting" only the mesh (by keeping entire elements), in "cutting" only the mesh (by keeping entire elements), in
'Tools->Options->Mesh->Cut Plane'. 'Tools->Options->Mesh->Cut Plane'.
* 5.14 What is the signification of rho, eta and gamma metrics in
Tools->Statistics?
They measure the quality of the tetrahedra in a mesh:
rho ~ min_edge_length / max_edge_length
eta ~ volume^(2/3) / sum_edge_length2
gamma ~ volume / sum_face_area / max_edge_length
For the exact definitions, look at Mesh/Simplex.cpp.
******************************************************************** ********************************************************************
Section 6: Solver module Section 6: Solver module
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