https://dev.opencascade.org/doc/occt-6.9.0/refman/html/_p_topo_d_s___t_edge1_8hxx.html
PTopoDS_TEdge1.hxx File Reference - Open CASCADE Technology Documentation
PTopoDS_TEdge1.hxx File Reference - documentation, user manuals, examples, Open CASCADE Technology
open cascade technologyhxxfilereferencedocumentation