Lengthen a curve.
Lengthen a curve on a surface to the surface edges.
Extend and trim curves to meet at their endpoints.
Continue to draw the selected curve using control points.
Continue to draw the selected curve interpolating through picked points.
Lengthen a surface by a value.
Extend surface edges to meet and trims the surfaces to each other.
Rhino for Mac © 2010-2017 Robert McNeel & Associates. 24-Oct-2017