Direction-Changing Components

Model Reference Manual

The DIRECTION command orients the Component along the constrained centreline and points the specified p-point in a new direction. Unlike the ORI command, if that new direction requires a change in the ANGLE of a variable-angle Component (e.g. a BEND), this will automatically be adjusted. The ability of a Component to adjust in this way is controlled by the Catalogue.


Examples:
DIR E	Rotate the Component about its origin such that (in forwards mode) its Arrive point is in the opposite direction to the previous Component’s leave point, and its leave point is East. If this requires a change of angle and the Component has a variable ANGLE attribute, then this will be altered to suit (see Figure 8:8.: Changing the direction of variable-angle Components).
DIR AND P3 IS U45E	As above, but P3 (rather than PL) is pointed to the new direction (see Figure 8:8.: Changing the direction of variable-angle Components).

Note:

If the new direction cannot be adopted by a fixed-angle Component, the item will be pointed in the closest direction to that specified.

Command Syntax:

>-- DIRection --+-- AND <marke> IS --.
                |                    |
                ‘--------------------+-- <bdir> -->

Querying:

                      .-------------------<----------------.
                     /                                     |
>-- Query <marke> --*-- DIRection --.                      |
                    |               |                      |
                    ‘---------------+-- WRT --.            |
                                    |         |            |
                                    |-- IN ---+--  <gid> --’
                                    |
                                    ‘-->

Figure 8:8.

Changing the direction of variable-angle Components