# Flatten curves and surfaces

Flatten a portion of a curve.

Flatten surfaces for pattern-making and flat-fabrication of curved surfaces.

## Flatten curves

Flatten the curve segment between picked points.

## Flatten surfaces

Project surface edges onto the construction plane to create planar curves.

Flatten a surface without restriction to single-directional curvature.

Flatten a non-developable (curved in two directions) 3-D mesh or NURBS surface into a flat 2-D pattern.

Return curves and surfaces to the original squished 3-D shape.

Flatten (develop) a surface or polysurface with curvature in one direction to a planar surface.

## See also

Edit curves

Edit surfaces

Rhinoceros 6 © 2010-2020 Robert McNeel & Associates. 21-Feb-2020