triangle 2D mesh. This checkbox is not present in Netgen 3D parameters
because currently building a tetrahedral mesh with quadrangle faces is
not possible.
+- <b>Set size by Surface Curvature</b> - if this box is checked in, then
+prevents creation of meshes of desired coarseness else mesher defines
+density of 1D and 2D mesh depending on curvature of faces and edges.
+- <b>Fuse consignment Edges and Vertices</b> - prevents to merging of
+nodes of edges which are coincident geometrically but are different topologically.
- <b>Optimize</b> - if this box is checked in, the algorithm will try to
create regular (possessing even sides) elements.
