CGAL 5.3 - 2D Conforming Triangulations and Meshes
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#include <CGAL/Delaunay_mesh_criteria_2.h>
The class Delaunay_mesh_criteria_2
is a model for the MeshingCriteria_2
concept.
The shape criterion on triangles is given by a bound B such that for good triangles \frac{r}{l} \le B where l is the shortest edge length and r is the circumradius of the triangle. By default, B=\sqrt{2}, which is the best bound one can use with the guarantee that the refinement algorithm will terminate. The upper bound B is related to a lower bound \alpha_{min} on the minimum angle in the triangle:
\sin{ \alpha_{min} } = \frac{1}{2 B}
so B=\sqrt{2} corresponds to \alpha_{min} \ge 20.7 degrees.
CDT | must be a 2D constrained Delaunay triangulation. |
Creation | |
Delaunay_mesh_criteria_2 () | |
Default constructor with bound B=\sqrt{2}. | |
Delaunay_mesh_criteria_2 (double b=0.125) | |
Construct a traits class with bound B=\sqrt{\frac{1}{4 b}}. | |