How to specify normal of the surface in BRepOffsetAPI_MakeFilling?

vincent skywalker's picture
vincent skywalker
Sun, 09/24/2023 - 04:30
Forums: 
Modeling

It is said that "TolAng: it is the maximum angle allowed between the normal of the surface".

But I do not know how to specify the normal of the surface. Could anyone help me out?