NX Nastran DMAP Programmer's Guide - Kxcad.net

FILE Data block declaration
Declares special characteristics of a data block(s).
Format:
FILE DB1=[SAVE,APPEND,OVRWRT]/DB2=[SAVE,APPEND,
OVRWRT]/... $
Data Blocks:
DBi Names of the data blocks possessing special characteristics.
Parameters:
FILE
Data block declaration
SAVE Indicates data block is to be saved for possible looping in DMAP
program.
APPEND Same as SAVE and also allows a module to append other data blocks to
DBi on successive passes through a DMAP loop.
OVRWRT Allows a data block to be overwritten.
Remarks:
1. FILE is a nonexecutable DMAP instruction that is used only by the DMAP
compiler for information purposes. It may appear anywhere in subDMAP. It is
also a local declaration; i.e., it must be declared in all subDMAPs where the SAVE,
APPEND, or OVRWRT is needed.
2. A data block name may appear only once in all FILE statements within a
subDMAP; otherwise, the first appearance will determine all special
characteristics applied to the data block.
3. The APPEND keyword should only be applied to local scratch data blocks. In
other words, the data block should not be referenced on a TYPE DB statement. It
is also recommended that the APPEND keyword not be applied to data blocks
that appear as output on the EQUIVX module. See the “EQUIVX” on page 1022
module description for further details.
Example:
1. Data block C is created only in the first pass through the loop and must be "saved"
for subsequent passes:
FILE C=SAVE $
TYPE PARM,,CS,N,R=(1.,0.) $
TYPE PARM,,I,N,COUNT=1 $
.
.
.
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