Restoring a Surface or Curve

A surface or curve which has been trimmed using the Break or Split commands can be restored to its original shape using the Untrim command.

The limits can be restored when a curve or a surface has been split using the following commands:


  • Break Surface or Break Curve (FreeStyle workbench)
  • Split (Generative Shape Design and Wireframe & Surface workbenches).

Important:


  • When the surface has been trimmed several times, it is the initial surface which is restored. To partially untrim the surface, you need to use the Undo command immediately after the trim.
  • When the surface to be restored is closed (in the case of a cylinder) or infinite (in the case of an extrude), the limits of the untrim feature will be the bounding boxes of the initial surface. Therefore, the initial surface and the untrim surface may be identical.
  • You can individually select a vertex or a boundary from the restored surface or curve.
  • Multi-selection is available and allows you to create several untrim features in one step. All untrim features will appear in the specification tree.

Before you begin: Open an existing 3D shape which has previously been trimmed.

  1. Click Untrim Surface or Curve

    The Untrim dialog box appears.

  2. Select the surface which you want to restore.

    The Untrim dialog box is updated accordingly.

  3. Click OK in the dialog box.

    A progression bar is displayed, while the surface is restored.

    The initial surface is automatically restored.



    The progression bar disappears once the operation is complete.

The restored surface or curve is identified as Surface Untrim.xxx or Curve Untrim.xxx.

Example of a local untrim on a face

You can perform a local untrim on faces. Three modes of selection are available:


  • Selection of the face: the initial surface is restored:

  • Selection of an inner loop: only this loop is restored:

  • Selection of the outer loop: only this loop is restored: