Code_Aster
®
Version
7.4
Titrate:
Procedure
PRE_IDEAS
Date:
31/01/05
Author (S):
O. NICOLAS
Key
:
U7.01.01-H
Page
:
1/4
Instruction manual
U7.0- booklet: Data exchanges
HT-66/05/004/A
Organization (S):
EDF-R & D/AMA
Instruction manual
U7.0- booklet: Data exchanges
Document: U7.01.01
Procedure
PRE_IDEAS
1 Goal
To convert a file of mesh of “universal” format IDEAS with the format Aster. It can then be read by
Aster via control LIRE_MAILLAGE.
Versions I-DEAS
TM
treated are versions 4, 5 and 6 as well as versions 1., 2., 3., 4., 5., 6., 7.,
8., 9. and 10. of Master Series.
Code_Aster
®
Version
7.4
Titrate:
Procedure
PRE_IDEAS
Date:
31/01/05
Author (S):
O. NICOLAS
Key
:
U7.01.01-H
Page
:
3/4
Instruction manual
U7.0- booklet: Data exchanges
HT-66/05/004/A
3 Operands
3.1 Operand
UNITE_IDEAS
UNITE_IDEAS
=
Logical number of unit of file known as “universal” IDEAS. The default value is 19.
3.2 Operand
UNITE_MAILLAGE
UNITE_MAILLAGE
=
Logical number of unit of the file of mesh Aster. The default value is 20.
3.3 Operand
CREA_GROUP_COUL
CREA_GROUP_COUL
=/“YES”,
/
“NOT”
,
[DEFECT]
The user can ask for the creation of groups of meshs gathering all the meshs of
even color while indicating CREA_GROUP_COUL = “YES” in control PRE_IDEAS. These
groups are named COUL_n or N is the number of the color in IDEAS.
In order not to unnecessarily increase the number of groups of meshs and consequently the size
file of mesh, it is decided automatically not to create the groups of meshs of one
even color: CREA_GROUP_COUL = “NOT” [DEFECT].
Note:
1)
order
PRE_IDEAS treats only Cartesian frames of reference.
2)
order
PRE_IDEAS manages one Cartesian frame of reference.
3) During the conversion of universal file IDEAS, control PRE_IDEAS checks if
the user defined several frames of reference. If it is the case, a message
of alarm the user informs some, to ask him to check that all the systems of
co-ordinates are identical.
4 Use
On the level of the environment of astk use, file known as “universal” IDEAS must be of type
.msup
.
The document [U3.03.01] described the principles of conversion of under files (dated sets) of the file
IDEAS in subfiles Aster and rules of development of the names of nodes, meshs, groups
nodes and groups of meshs produced, as well as the direction of connectivity of the meshs.
If, in the environment of use, one associated file IDEAS the logical unit 19 (value by
defect for the type .msup), one creates the concept Aster mesh as follows:
PRE_IDEAS ()
mall = LIRE_MAILLAGE ()