Surface Edit > Trim > Untrim

Recovers the trimmed part of a surface.

Untrim Options

Untrim Stages

Last – Undo the last trim operation on the surface.

All – Undo all trims on the surface.

Delete Curves on Surface

Note:

The Delete Curves on Surface options are available only with Autodesk Alias 2019.2 or later.

Use in Trim - Delete curves that were used in a reverted trim operation (trim edges).Not used in Trim - Delete curves that were not used in a trim operation (free curves-on-surface).Delete CoS with history - When Used in Trim or Not used in Trim are selected, this option controls the deletion of curves that are constructors for other commands.