GGU-STABILITY: "Round off" menu item

With Delauney triangulation a triangular mesh is created which envelopes all nodes. In this way triangular elements can occur which, in the boundary areas, can be very acutely angled. Using this menu item you can remove such triangles from the mesh.

The radius ratio describes the relationship between exterior radius and interior radius of a triangle. For an equilateral triangle this ratio equals 2.0 (optimum). Before you arrive at the dialog box above, the maximum and the average radius ratio of the mesh appear. In the example above, all exterior triangles with a radius ratio larger than 21 will be removed.

In order to avoid interpolation holes in the triangle system only triangles at the boundaries are deleted.