API references to Plane & CPlane interchangeable?

Just getting into some cplane scripts (creation and sectioning) in python/rhinocommon and am getting confused. It seems that Plane and CPlane terminology is interchangeable. Is this correct or have I missed something fundamental?

Hi @Ncik,

Have a look at these links:

https://developer.rhino3d.com/api/RhinoCommon/html/T_Rhino_DocObjects_ConstructionPlane.htm

https://developer.rhino3d.com/api/RhinoCommon/html/T_Rhino_Geometry_Plane.htm

– Dale

Thanks @dale.