The object to measure from. It must be a geometric object that belongs to a link. If type is an angle measurement, it must be a linear edge or line. If type is a minimum distance measurement, it can be either a solid body, sheet body, curve, or marker.
The object to measure to. It must be on a different link than object_1. If this is an angle measurement, object_2 must be a linear edge or line. If this is a distance measurement, it can be any geometric object.
enum definition.