Annotation elements which (can) require a 3D position include labels (GLAB, SLAB); View Notes (VNOT), drafting primitives whose drafting point references (PTRF or PTFA) use a PPPT (drafting point with design data); Angular Dimension elements (ADIM) and two types of dimension points: DPPT and DPBA. Dimension points of type DPBA do not require p-line data since they are concerned with the limits of a Design element.