Spatial Map

The ADD ... WITHIN variation of the ADD command uses the Marine spatial map. The spatial map is a simplified geometric representation of the design model. For example:

ADD /ZONE99 WITHIN E5000 N5000 U5000 TO W1000 S1000 U0

REMOVE WITHIN E2500 N1000 U500 TO E0 N0 U0

The first example would create a list of ADD entries, one for each significant element that is in /ZONE99 and which overlaps the specified volume. The second example would generate a list of REMOVE entries, one for each significant element in the current MDB that overlaps the specified volume.

Note: If the spatial map is not up-to-date the list of elements generated may not be correct. The ADD ... WITHIN method may produce very long Id Lists. These are liable to become out-of-date as elements are added to, and removed from, the Design databases. Better results may be yielded by setting the IDLI’s LIMI attribute (see Command Summary section at the end of this section) to define the required volume and only ADD the relevant SITEs and ZONEs to the Id List.