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110 lines
4.0 KiB
110 lines
4.0 KiB
2 years ago
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C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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SUBROUTINE BFNODE (NLIST, NNXK, NPNODE, NPELEM, MAXKXN, NNUID,
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& NODE, NEWNOD, LIST, KXN, NXK, NUID, JLOC, LINE1, ERR)
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C***********************************************************************
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C SUBROUTINE BFNODE = FINDS ANY NODES IN A PORTION OF THE NODAL FLAG
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C LIST WHICH IS ATTACHED TO THE GIVEN NODE.
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C***********************************************************************
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C SUBROUTINE CALLED BY:
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C ADDWT = ADDS THE WEIGHTING FACTORS TO ANY NODES WITH
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C FLAGS CONTAINING WEIGHTS
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C***********************************************************************
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DIMENSION JLIST (20), NUID (NNUID)
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DIMENSION LIST (NLIST), NXK (NNXK, NPELEM), KXN (NNXK, MAXKXN)
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LOGICAL ERR, FOUND, ALL, CLOSED, NOTIFY
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ERR = .TRUE.
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FOUND = .FALSE.
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CLOSED = .FALSE.
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NOTIFY = .TRUE.
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NEWNOD = 0
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JLOC = 0
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ALL = .FALSE.
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CALL GETNXN (NPNODE, NPELEM, MAXKXN, NNXK, KXN, NXK, NUID, NODE,
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& JLIST, IFOUND, ALL, ERR)
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IF (ERR) THEN
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WRITE ( * , 10000)NODE
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RETURN
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ENDIF
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C SEE IF ANY OF THE FOUND NODES ARE IN THE FLAGGED NODE LIST
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C ONLY 1 SHOULD BE (REPEATS OF THE SAME NODE ARE OK FOR SIDEBC)
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NEWNOD = 0
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NODOLD = 0
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DO 110 I = 1, IFOUND
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DO 100 J = 1, NLIST
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IF (LIST (J) .EQ. JLIST (I)) THEN
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IF ( (FOUND) .AND. (LIST (J) .NE. NEWNOD)) THEN
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IF ( (CLOSED) .AND. (NODOLD .NE. LIST (J))) THEN
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WRITE ( * , 10010)NODE
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RETURN
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ELSEIF (.NOT.CLOSED) THEN
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C ASSUME IN A CLOSED LOOP THAT THE FIRST LINE IN THE SIDEBC DEFINITION
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C (LINE1) INDICATES THE APPROPRIATE DIRECTION
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LINET1 = (NUID (LIST (J)) - 1000000000) / 100000
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LINET2 = (NUID (NEWNOD) - 1000000000) / 100000
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IF ( (LINET1 .EQ. LINET2) .AND.
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& (LINET1 .EQ. LINE1)) THEN
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CLOSED = .TRUE.
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IF (NOTIFY) WRITE (*, 10020)NODE, NEWNOD, LINE1
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CALL MESSAGE('NOTE - NEITHER 2ND NODE IS ON '//
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& 'FIRST LINE')
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ELSEIF (LINE1 .EQ. LINET1) THEN
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NODOLD = NEWNOD
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NEWNOD = LIST (J)
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JLOC = J
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CLOSED = .TRUE.
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IF (NOTIFY) WRITE (*, 10020)NODE, NEWNOD, LINE1
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NOTIFY = .FALSE.
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ELSEIF (LINE1 .EQ. LINET2) THEN
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NODOLD = LIST (J)
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CLOSED = .TRUE.
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IF (NOTIFY) WRITE (*, 10020)NODE, NEWNOD, LINE1
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NOTIFY = .FALSE.
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ELSE
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WRITE ( * , 10030)NODE
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RETURN
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ENDIF
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ENDIF
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ELSE
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FOUND = .TRUE.
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NEWNOD = LIST (J)
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JLOC = J
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ENDIF
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ENDIF
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100 CONTINUE
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110 CONTINUE
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ERR = .FALSE.
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RETURN
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10000 FORMAT (' ERROR GETTING NODES ATTACHED TO NODE:', I5)
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10010 FORMAT (' ERROR - THREE NODES HAVE BEEN FOUND FOR SEQUENCE FROM',
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& ' NODE:', I5)
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10020 FORMAT (' WARNING - CLOSED LOOP FOUND AT BEGINNING POINT OF',
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& ' WEIGHTING', /,
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& ' BEGINNING POINT CORRESPONDS TO NODE:', I5, /,
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& ' NODE:', I5, ' ON LINE:', I5,
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& ' USED AS SECOND WEIGHTING NODE')
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10030 FORMAT (' ERROR - FOR CLOSED LOOP FOUND AT BEGINNING POINT OF',
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& ' WEIGHTING, ', /,
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& 'POSSIBLE SECOND NODES DO NOT LIE ON THE FIRST LINE:', I5, /,
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& 'ATTACHED TO THE SIDEBC - DIRECTION IS THUS UNDETERMINABLE.')
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END
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