# Extend curves and surfaces

## Extend curves

Lengthen a curve by its natural extension to a boundary or point.

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.

## Extend surfaces

Lengthen a surface by a value.

Extend surface edges to meet and trims the surfaces to each other.

## See also

Edit curves

Edit surfaces

Rhinoceros 6 © 2010-2019 Robert McNeel & Associates. 12-Apr-2019