Block Format Keyword Generates a group of trusses by listing the first and last truss IDs in the range with a user-defined increment value.


Generate a list of entities that starts with first_ID and includes entities every Incr after first_ID until last_ID.
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
first_ID last_ID Incr              


Field Contents SI Unit Example
grtrus_ID Truss group identifier

(Integer, maximum 10 digits)

unit_ID Unit Identifier

(Integer, maximum 10 digits)

grtrus_title Truss group title

(Character, maximum 100 characters)

first_ID First truss element identifier in the list.


last_ID Last truss element identifier in the list.


Incr Increment value of the list generation from first_ID to last_ID.

Default = 1 (Integer)



  1. The group includes first_ID, first_ID+Incr, first_ID+2*Incr, first_ID+3*Incr, … continuing through last_ID.
  2. Multiple first_ID, last_ID, and Incr lines can be defined in one block.