CALYPSO only recognizes the geometries to which the PMI is attached. These are mainly relevant for displayin in the CAD window of CALYPSO. Mostly these elements are not measurable (e.g. edges are not measured conventionally, but are created by cutting two planes).
If no planar geometries (cylinders, cones, surfaces) are linked, CALYPSO creates the inspection characteristic without measuring elements or only the 2D elements (circle, line) as measuring elements.