If you want to keep a copy of this class around by holding onto it in a variable after a command completes, call EnsurePrivateCopy to make sure that this class is not tied to the document. You can call this function as many times as you want.

Namespace: Rhino.Geometry.Collections
Assembly: RhinoCommon (in RhinoCommon.dll) Version: Rhino 6.0

C#

public void EnsurePrivateCopy()

VB

Public Sub EnsurePrivateCopy

Supported in: 6.0.16224.21491, 5D58w

NurbsSurfacePointList Class
Rhino.Geometry.Collections Namespace