Create a flat surface inside a curve

The Planar action creates a flat, trimmed NURBS surface inside a curve.

1. Select a closed, planar curve, or multiple curves that form a closed, planar region.

   You can select multiple curves that form an enclose region by overlapping. They do not need to be connected end-to-end.

   
2. Choose Surfaces > Planar.
   

Notes

• You can use the Keep Outside attribute to create a trimmed surface with a hole cut of the enclosed region instead of a trimmed surface inside the enclosed region.
• You can edit the input curves to change the shape of the surface, but the surface must remain planar.
• Although a planar surface can include cut-out areas and holes, all curves must be co-planar even if they appear to create separate parts of the surface.

Related topics

• Skin a surface across profile curves
• Create a surface within bounding curves