Curve From Objects >
The DupBorder command creates curves from the boundaries of the selected objects.
When a group of mesh faces is selected, outer boundary curves will be created.
When a group of polysurface faces is selected, boundary curves will be created for each face.
Place the results on the current layer.
Place the results on the same layer as the input curve.
Create curves from other objects
Rhinoceros 6 © 2010-2019 Robert McNeel & Associates. 21-Aug-2019