KFILL, NP1, NP2, NFILL, NSTRT, NINC, SPACE
Generates keypoints between two keypoints.
NP1, NP2Beginning and ending keypoints for fill-in.  NP1 defaults
to next to last keypoint specified, NP2 defaults
to last keypoint specified.  If NP1 = P, graphical
picking is enabled and all remaining command fields are ignored (valid only
in the GUI).
NFILLFill NFILL keypoints between NP1 and NP2 (defaults
to |NP2-NP1|-1).  NFILL must
be positive.
NSTRTKeypoint number assigned to first filled-in keypoint (defaults
to NP1 + NINC).
NINCAdd this increment to each of the remaining filled-in keypoint
numbers (may be positive or negative).  Defaults to (NP2-NP1)/(NFILL + 1), i.e., linear interpolation.
SPACESpacing ratio. Ratio of last division size to first division size. If > 1.0, divisions increase. If < 1.0, divisions decrease. Ratio defaults to 1.0 (uniform spacing).
Generates keypoints (in the active coordinate system) between two existing keypoints. The two keypoints may have been defined in any coordinate system. However, solid modeling in a toroidal coordinate system is not recommended. Any number of keypoints may be filled in and any keypoint numbering sequence may be assigned.