https://dev.opencascade.org/doc/occt-7.0.0/refman/html/class_b_rep_offset_a_p_i___thru_sections.html
BRepOffsetAPI_ThruSections Class Reference - Open CASCADE Technology Documentation
BRepOffsetAPI_ThruSections Class Reference - documentation, user manuals, examples, Open CASCADE Technology
open cascade technologyclass referencedocumentation