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Orientations

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  • Last UpdatedAug 17, 2023
  • 1 minute read

The basic ways of defining an orientation are:

  • Orientation attribute plus optional WRT. For example:

    ORI OF /BOX1 WRT /*

  • Cartesian orientation. For example:

    dir IS dir AND dir IS dir

  • For example to set an orientation of an element to that of a section, rotated by 90 degrees use:

    (E IS U WRT /SCTN1 AND N IS E WRT /SCTN1)

  • The AXES keyword, which will allow you to use P-points to specify orientations.

  • The syntax is:

                  ----<---------.
                 /              |
    >-- AXES --*--- PArrive ---|
               |               |
               |--- PLeave ----|
               |               |
               |--- PTail -----|
               |               |
               |--- HHead -----|
               |               |
               |--- HTail -----|
               |               |
               ‘--- PPOINT n --+-- OF - <gid> ---->

  • An example is:

    ( AXES PLEAVE IS AXES PLEAVE OF PREV AND AXES P3 IS UP )

  • This will orient a branch component, such as a valve, so that it is aligned with the previous component and its P3 is up.

    See also Compare Positions.