Repairing KO Faces

You can recover on transfer failures or limitations after importing the data contained in imported files.

Once imported, the data can be handled just as if it were created as a 3D shape representation. Sometimes, some entities are degenerated during the transfer and it is characterized by a loss of geometry. In this case, the missing geometry must be re-created.

  1. Import the file.
    • The conversion of the file is progressive: You can visualize the process through the progress bar.
    • Optionally, a message appears.
  2. Click OK to continue.
    • All the faces reported as KO are put in the Geometrical Set GeometryFailure.
    • In this Geometrical Set, for each KO face, one FaceKO.xx Geometrical Set is created in the NoShow. It contains its geometric elementsof the face.
  3. Recall FaceKO#BND_SRF1 from the NoShow and expand it if necessary.

    It contains the support surface and boundary curves corresponding to the face.

    The reason of the failure is that the inner boundary is described before the outer boundary, in contradiction with the standard.

  4. Go to Generative Shape Design.
    1. From the Transform section, click Join .
    2. Select the curves of the outer boundary.
    3. Click OK.
    A Join.1 is created under FaceKO.1.
  5. Repeat with the curves of the inner boundary.
    A Join.2 is created under FaceKO.1.
  6. Click Split .
    1. Select the surface and Join.1.
    2. Keep the inside of the surface.
    3. Click OK.
    • The surface is split by the outer boundary.
    • Split.1 is created under FaceKO.1.

  7. Repeat this step with the inner boundary.
    1. Optional: Before splitting the surface, as no associativity is needed, click to switch to Create Datum mode.
    Split.2 is created, corresponding to the repaired face.

  8. Optional: Move the result surface Split.2 to another Geometrical Set.
  9. Delete the FaceKO#BND_SRF1 Geometrical Set.

    All these elements are however present within the No Show space.

  10. Another possible cause of failure is that the splitting operation has kept the wrong side of the boundary. In that case:
    • Click Fill (in datum mode) to recreate the correct face.
    • Or Extract the surface boundary and untrim the surface, then split it.
    A Surface.xx is created.