Creating Extremum Elements

This task shows you to create extremum elements (points, edges, or faces), that is elements at the minimum or maximum distance on a curve, a surface, or a pad, according to given directions.
Open the Extremum1.CATPart document.
Display the Points sub-toolbar by clicking and holding the arrow from the Point icon.

  1. Click Extremum .

    The Extremum Definition dialog box is displayed.

  2. Set the correct options:

    • Max: according to a given direction the highest point on the curve is created

    • Min: according to the same direction the lowest point on the curve is created

    Extremum Points on a curve

  3. Select a curve.

  4. Select the direction into which the extremum point must be identified.

  5. Click OK.

    The point (identified as Extremum.xxx) is added to the specification tree.

    Extremum on a surface

  6. Select a surface.

  7. Select the direction into which the extremum must be identified.

    If you click OK, the extremum face is created.

     
    Giving only one direction is not always enough. You need to give a second, and possibly a third direction depending on the expected result (face, edge or point) to indicate to the system in which direction you want to create the extremum element. These directions must not be identical.

  8. Select a second direction.

    If you click OK, the extremum edge is created.

  9. Select a third direction.

  10. Click OK.

    The point (identified as Extremum.xxx) is added to the specification tree.