COMP_CosOpenEdge

specify how the boundary continues at an open edge

Default: COMP_CosOpenEdge = -0.3 If a boundary ends in an open edge (triangle edge with no topological connectivity to another, adjacent triangle), then with COMP_CosOpenEdge a virtual continuation direction of the boundary is given. The condition is cos(OpenEdge) = t*n, where t is the virtual continuation tangent, and n is the boundary normal of the present boundary element. A given point x, which projects onto the open edge, is considered to be inside if (x-x_proj)*n/norm(x-x_proj) > COMP_CosOpenEdge otherwise it is outside.