I was wondering if it is possible to annotate 2D entities like faces, edges or vertices with OCC? One option would be to use STEP AP203 Ed2 FT&D or GD&A style annotations.
What I would like to do is to manually add annotations as unique labels to certain entities of a 3D part and to use these annotations at a later point to adress the specific entities e.g. for automated modeling operations. So, the user should be able to annotate a part and based on these annotations my system (using OCC) can then perform further steps without user interaction. I hope I made myself clear.
As far as I see it OCC does not support Step GD&A annotations. Am I right? If so, does anyone have an idea how such annotations could be done?