The ExtendSrf command moves a surface edge to lengthen a surface.
If the surface edges is trimmed, a preview of the extension displays.
Steps
Select a trimmed or untrimmed surface edge. If an untrimmed edge or an isocurve trimmed edge is picked, the extending path displays from the picking point.
Specify a distance.
Command-line options
Type
Smooth: Extends the surface smoothly curving from the edge.
Line: Extends the surface in a straight line from the edge.
SetBasePoint: Specify a location that serves as the first point when picking two points that set the extension distance.
Merge
Yes: The extension will be merged with the original surface.
No: The extension will be created as a separate surface.
For more information, please refer to the Rhino documentation.
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