Required member functions for the PTQMask_3 concept. This policy concept of geometric computations is used in CGAL::Subdivision_method_3::PTQ<Polyhedron_3, Mask>.

 
computes the edgepoint pt based on the neighborhood of the edge e.  

 
computes the vertexpoint pt based on the neighborhood of the vertex v.  

 
computes the edgepoint ept and the vertexpoint vpt based on the neighborhood of the border edge e. 
CGAL::Loop_mask_3<Polyhedron_3>