+----------------------------------+
|CALL IGPID (LEVEL,NAME,PID,CHOPT) |
+----------------------------------+
Action: This routine allows to define primitives identifiers in the HIGZ
pictures. With this routine it is posible to define a tree structure
inside HIGZ pictures.
Parameter Description:
- LEVEL
- Level number
- NAME
- Primitives names
- PID
- Primitives identifier
- CHOPT
- Character options
- ' '
- the level becomes LEVEL
- 'U'
- one level Up
- 'D'
- one level Down
In the HIGZ pictures, all the primitives stored sequentially after a
primitive identifier are stamped with the PID defined by
this primitive identifier. The level number allows to define a tree
structure in the HIGZ picture.
Some errors are prevented when using IGPID. One of these errors is
illustrated in the following: if level 5 (for example) is requested when
the current level number is 1, then levels 2, 3 and 4 are not defined and
routine IGPID returns an error message.