NX Nastran DMAP Programmer's Guide - Kxcad.net

1159
MATMOD
Matrix modification
Parameters:
UBIT Input-integer-default=0. Obsolete method for set selection. For a more
user-friendly method use SETSTRi. In order to select specific sets for UBIT,
add the corresponding decimal equivalent numbers from the table below.
For example, sets R, O, and M, UBIT=8+4+1=13. For supersets, add the
decimal equivalent numbers of the mutually exclusive sets which are
contained in the superset. For example, set S combines the SB and SG set
and therefore UBIT=1024+512=1536. The presence of any grid point degree
of freedom in the associated sets causes all degrees of freedom associated
with that grid point to be given a value of 1.0 in the output vector.
Set
Name
Decimal
Equivalent
Number
Q 4194304
BE 2097152
C 1048576
K 262144
SA 131072
E 2048
SB 1024
SG 512
R 8
O 4
BF 2
M 1