The ExtractSrf command separates or duplicates polysurface, Extrusion, or SubD faces.
Input
Polysurface face
Extrusion face
SubD face
Steps
Select the faces on a polysurface, an Extrusion, or a SubD.
The extracted faces will be removed from the group containing the source object.
To remove a surface from the selection, press Ctrl(CMD) while clicking.
Command-line options
Copy
The RememberCopyOptions command determines whether the selected option is used as the default.
OutputLayer
Current
Places the results on the current layer.
Input
Places the results on the source object's layer.
SubDAddCorners
Creases the SubD corner vertices on the boundaries created by the extraction.
For more information, please refer to the Rhino documentation.
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