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78 lines
2.0 KiB
78 lines
2.0 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 FLMNMX (MXND, MLN, MAXPRM, LINKPR, KPERIM, LNODES,
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& XN, YN, NLOOP, NODE, XMIN, XMAX, YMIN, YMAX, ERR)
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C***********************************************************************
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C SUBROUTINE FLMNMX = SET MIN AND MAX FOR CURRENT FILL BOUNDARY
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C***********************************************************************
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DIMENSION LNODES (MLN, MXND), XN (MXND), YN (MXND)
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DIMENSION LINKPR (3, MAXPRM)
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LOGICAL ERR
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KOUNT = 0
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INOW = NODE
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XMIN = XN (NODE)
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XMAX = XN (NODE)
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YMIN = YN (NODE)
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YMAX = YN (NODE)
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100 CONTINUE
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INOW = LNODES (3, INOW)
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IF (INOW .NE. NODE) THEN
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XMIN = MIN (XMIN, XN (INOW))
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YMIN = MIN (YMIN, YN (INOW))
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XMAX = MAX (XMAX, XN (INOW))
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YMAX = MAX (YMAX, YN (INOW))
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KOUNT = KOUNT + 1
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IF (KOUNT .GT. NLOOP) THEN
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CALL MESSAGE('PROBLEMS IN FLMNMX WITH LOOP NOT CLOSING')
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ERR = .TRUE.
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GOTO 130
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ENDIF
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GOTO 100
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ENDIF
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C LOOP THROUGH ALL THE REMAINING PERIMETERS CHECKING FOR CROSSINGS
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IPERIM = KPERIM
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110 CONTINUE
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IPERIM = LINKPR (2, IPERIM)
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IF ((IPERIM .EQ. 0) .OR. (IPERIM .EQ. KPERIM)) GOTO 130
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KMAX = LINKPR (3, IPERIM)
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INOW = LINKPR (1, IPERIM)
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KOUNT = 0
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120 CONTINUE
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XMIN = MIN (XMIN, XN (INOW))
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YMIN = MIN (YMIN, YN (INOW))
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XMAX = MAX (XMAX, XN (INOW))
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YMAX = MAX (YMAX, YN (INOW))
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KOUNT = KOUNT + 1
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INOW = LNODES (3, INOW)
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IF (INOW .EQ. LINKPR (1, IPERIM)) GOTO 110
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IF (KOUNT. GT. KMAX + 1) THEN
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CALL MESSAGE('PROBLEMS IN FLMNMX WITH LOOP NOT CLOSING')
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ERR = .TRUE.
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GOTO 130
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ENDIF
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GOTO 120
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130 CONTINUE
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RETURN
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END
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