Possible optimization AIS_InteractiveContext.SetLocation
I tried to change the transform of the underling Graphic3d_CStructure
However changing the rendering transform over the InteractiveContext has some unnecessary overhead.
Best option would be to use a cheap value class (gp_Trsf) in the call, but:
AIS_InteractiveContext.SetLocation uses a TopLoc_Location object as parameter but internally only uses its gp_Trsf.
The TopLoc_Location is expensive to construct.
Bypassing to AIS_Shape.SetLocalTransformation(gp_Trsf) omits update of selection transforms.
Allow SetLocation with parameter gp_Trsf. TopLoc_Location implicit casts
The Prs3d_Presentation forwards to the Graphic3d_CStructure (functions Transform(), Move(), etc) by using a Handle(Geom_Transformation) and calling new inside.
This seems unnecessary as the usage of the Handle is only local and all the data is copied, so nothing gets shared.
Replace Handle(Geom_Transformation) with gp_Trsf
This would save several unnecessary memory allocations.