Shapes and local coordinate system

I want to build, for example, a circle on a face of a box. Is it possible to build the center of this circle relative to a/the local coordinate system of the box? Should I define a local coordinate system (gp_Ax3?) ? Should I (and how should) use TopLoc_Location, TopLoc_Datum3D, ... ?

Best regards


Andrea's picture

Hallo everybody,
I want to do the same thing, but I don't know how.
Maybe someone can help me.
Thank you in advance.