VDGL, NV1, NV2, NINC
Lists keypoints of a volume that lie on a parametric degeneracy.
NV1, NV2, NINCList keypoints that lie on a parametric degeneracy on volumes
from NV1 to NV2 (defaults
to NV1) in steps of NINC (defaults
to 1).  If NV1 = ALL (default), NV2 and NINC will
be ignored and keypoints on all selected volumes [VSEL]
will be listed.  If NV1 = P, graphical picking
is enabled and all remaining command fields are ignored (valid only in the
GUI).  You may also substitute a component name for NV1 (ignore NV2 and NINC).
See the Modeling and Meshing Guide for details about parametric degeneracies.
This command is valid in any processor.