Expert user tool that replaces the 3d surface geometry use by the face.

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

C#

public bool ChangeSurface(
	int surfaceIndex
)

VB

Public Function ChangeSurface ( 
	surfaceIndex As Integer
) As Boolean

surfaceIndex

Type: System.Int32
brep surface index of new surface.

Type: Boolean
true if successful.

If the face had a surface and new surface has a different shape, then you probably want to call something like RebuildEdges() to move the 3d edge curves so they will lie on the new surface. This doesn't delete the old surface; call Brep.CullUnusedSurfaces() or Brep.Compact() to remove unused surfaces.

Supported in: 6.0.16224.21491, 5D58w

BrepFace Class
Rhino.Geometry Namespace