Design Element Orientation

Model Reference Manual

Equipment and Primitives : Orientation and Connection : Design Element Orientation

Every Design element has its own co ordinate system which consists of a right-handed set of East (X), North (Y) and Up (Z) axes. The precise orientation of an element must be given as two statements fixing the direction of two axes, e.g. ORI Y IS NORTH AND Z IS UP. When rotating symmetrical items, such as cylinders, it may be sufficient to give one axis direction only (allowing MODEL to choose the other), e.g. ORI P1 IS N45E. Regardless of the command given, orientation always occurs about the Current Element origin.


Examples:
ORI Y IS N AND Z IS UP	The Current Element is rotated about its origin so that its Y axis is pointing North (in owner coordinates) and its Z axis is pointing up (see Figure 7:8.: Design element orientation (1)).
ORI P1 IS E	The Current Element is rotated so that its P1 p-point is pointing East in owner coordinates (see Figure 7:9.: Design element orientation (2)).

Command Syntax:

>- ORIentate -+- <bdir> IS <bdir> -.
              |                    |
              ‘--------------------+- AND <bdir> IS <bdir> -.
                                   |                        |
                                   ‘------------------------+-->

Querying:

>-- Query ORIentation --+-- WRT --.
                        |         |
                        |-- IN ---+-- <gid> -->
                        |
                        ‘-->

Figure 7:8.

Design element orientation (1)

Figure 7:9.

Design element orientation (2)