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95 lines
2.6 KiB
95 lines
2.6 KiB
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 GETNXN (NPNODE, NPELEM, MAXKXN, NNXK, KXN, NXK, NUID,
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& NODE, NLIST, NUMN, ALL, ERR)
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C***********************************************************************
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C SUBROUTINE GETNXN = GETS THE LIST OF NODES CONNECTED TO NODE
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C***********************************************************************
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C NOTE:
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C NODES FOR WHICH NUID (NODE) IS NEGATIVE WILL NOT BE INCLUDED.
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C IF ALL=.FALSE., ONLY DIRECTLY CONNECTED NODES WILL BE LISTED.
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C IF ALL=.TRUE., INDIRECTLY CONNECTED NODES WILL ALSO BE LISTED.
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C***********************************************************************
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DIMENSION NLIST (20), KLIST (20), M (3)
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DIMENSION KXN (NNXK, MAXKXN), NUID (NPNODE)
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DIMENSION NXK (NNXK, NPELEM)
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LOGICAL ALL, ERR
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ERR = .FALSE.
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CALL GETKXN (NPNODE, MAXKXN, NNXK, KXN, NUID, NODE, KLIST, NUMK,
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& ERR)
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IF (ERR) RETURN
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IF (ALL) THEN
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NDO = 3
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ELSE
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NDO = 2
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ENDIF
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NUM = 0
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NOD = NODE
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DO 130 IK = 1, NUMK
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K = KLIST (IK)
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IF (NXK (1, K) .EQ. NOD) THEN
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M (1) = 4
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M (2) = 2
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M (3) = 3
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ELSEIF (NXK (2, K) .EQ. NOD) THEN
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M (1) = 1
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M (2) = 3
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M (3) = 4
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ELSEIF (NXK (3, K) .EQ. NOD) THEN
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M (1) = 2
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M (2) = 4
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M (3) = 1
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ELSEIF (NXK (4, K) .EQ. NOD) THEN
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M (1) = 3
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M (2) = 1
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M (3) = 2
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ELSE
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CALL MESSAGE('IMPOSSIBLE SITUATION IN GETNXN, LOOP 50')
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ERR = .TRUE.
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RETURN
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ENDIF
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NLK = NUM
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DO 120 IDO = 1, NDO
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MIDO = M (IDO)
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N = NXK (MIDO, K)
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IF ( (N .GT. 0) .AND. (NUID (N) .GT. 0)) THEN
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IF (NLK .LE. 0) THEN
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NUM = NUM + 1
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NLIST (NUM) = N
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ELSE
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DO 100 I = 1, NLK
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IF (NLIST (I) .EQ. N)GOTO 110
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100 CONTINUE
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NUM = NUM + 1
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NLIST (NUM) = N
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ENDIF
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ENDIF
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110 CONTINUE
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120 CONTINUE
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130 CONTINUE
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NUMN = NUM
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IF (NUMN .GT. 20) THEN
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WRITE (*, 10000)NODE, NUID (NODE)
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ERR = .TRUE.
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ENDIF
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RETURN
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10000 FORMAT (' TOO MANY NODES CONNECTED TO NODE', I5,
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& ', NUID = ', I10)
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END
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