My digitizer plugin is using CDigitizerPlugin()::SendRay() to deliver digitizer position and orientation data into Rhino.
We have tested this with the Point, Multipoint, Polyline, Line Segment drawing tools in Rhino 4 and 5.
I assume that none of these tools makes use of the orientation data included in the ON_3dRay object that is sent in the SendRay() method.
What tools do use this data?
Suzanne at Polhemus.