New in Rhino 8

The SnapToSubDObject command constrains mouse picking on the selected SubD object.

To constrain mouse picking on a SubD

  1. Run SnapToSubDObject.
  2. Select a SubD object.
  3. Enter the Offset amount as needed.
  4. Draw a Control Point Curve on the SubD object.
    Every control point of the curve is on the SubD object.

To clear existing constraint

  1. Run SnapToSubDObject when no SubD object is in selection.
  2. Press Enter directly.