Untrimming surfaces and filling holes

Untrim Surface untrims a previously trimmed surface region to restore the entire surface.

Note: The model must contain a trimmed surface.

To untrim a surface:

1. Select Construct tab > Surfaces panel > From 1 Surface > Untrim to display the Untrim a Trimmed Surface dialog.

   All trimming loops are displayed.

2. Select Create new surface(s) to create a new surface or Modify existing surface(s) to trim the selected surface.
3. Optionally enter a name in the Surface name field. This field is available only if Create new surface(s) is selected.
4. Select a surface from the Surface list, or click the Pick surface button and select it in the graphics window.
5. To remove all trimming loops, select Untrim all.
6. To remove a single loop:
   1. Select Untrim selected loop.
   2. Click the Pick curve on surface button and select the loop in the graphics window.
7. To remove a single edge:
   1. Select Untrim edge(s).
   2. Click the Pick edges to untrim button and select the edge in the graphics window.
   3. The dialog is minimized.
   4. Select the trim curve(s) in the graphics window.
   5. Double-click the minimized dialog to display it.
8. Click Preview to display a preview of the surface in the graphics window.
9. Click OK.