BBTR: an unstructured triangular mesh generator
Andrea Maria Antigone Barbera, Stefano Berrone · PORTO Publications Open Repository TOrino (Politecnico di Torino) · 2008
In this paper we give a detailed description of the use of a Matlab R © triangular mesh generator called BBTR. This code offers many features for an implementation of a finite element code. Particular attention has been paid to the generality of the polygonal domains that the triangulator can deal with. General non convex polygonal domains, as well as domains with holes, internal constrained segments and sharp angles of the boundary, can be successfully processed by BBTR. Moreover, suitable algorithms have been implemented to ensure a good quality of the mesh, controlling the angles of the elements. Suitable data structures produced by the mesh generator allow to set general boundary conditions. The code BBTR results to be a quite general and efficient triangular mesh generator.