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105 lines
2.8 KiB
105 lines
2.8 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 GETPLP (NPNODE, NPELEM, MAXKXN, NNXK, MXLIST, KXN,
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& NXK, NUID, IP1, LINE, IP2, LIST, NLIST, NNN, LASTN, NOROOM,
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& ERR)
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C***********************************************************************
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C SUBROUTINE GETPLP = PRODUCES THE LIST OF NODES FROM POINT IP1
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C THROUGH LINE TO POINT IP2
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C***********************************************************************
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C NOTE:
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C THIS LIST WILL BE (LIST (I), I=1,NLIST) AND THESE WILL BE INDICES
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C INTO THE NODE TABLE
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C***********************************************************************
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DIMENSION NXNLST (20)
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DIMENSION KXN (NNXK, MAXKXN), NXK (NNXK, NPELEM), NUID (NPNODE)
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DIMENSION LIST (MXLIST)
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LOGICAL ERR, ALL, NOROOM
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ERR = .FALSE.
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NOROOM = .FALSE.
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C FIND FIRST POINT
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IF (NLIST .EQ. 0) THEN
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N = INDX (NNN, NUID, IP1)
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IF (N .LE. 0) THEN
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WRITE ( * , 10000)IP1
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ERR = .TRUE.
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RETURN
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ENDIF
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NLIST = NLIST + 1
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IF (NLIST .GT. MXLIST) THEN
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NOROOM = .TRUE.
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RETURN
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ENDIF
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LIST (NLIST) = N
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ELSE
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NLIST = 0
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N = LASTN
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ENDIF
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C FOLLOW THE LINE
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IF (LINE .LE. 0) RETURN
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NPREV = 0
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100 CONTINUE
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ALL = .FALSE.
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CALL GETNXN (NPNODE, NPELEM, MAXKXN, NNXK, KXN, NXK, NUID, N,
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& NXNLST, NUMN, ALL, ERR)
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IF (ERR) RETURN
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DO 110 I = 1, NUMN
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NEW = NXNLST (I)
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IF ( (NEW .NE. NPREV) .AND. (NUID (NEW) .GE. 1000000000)) THEN
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L = (NUID (NEW) - 1000000000) / 100000
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IF (L .EQ. LINE) THEN
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NLIST = NLIST + 1
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IF (NLIST .GT. MXLIST) THEN
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NOROOM = .TRUE.
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RETURN
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ENDIF
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LIST (NLIST) = NEW
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NPREV = N
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N = NEW
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GOTO 100
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ENDIF
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ENDIF
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110 CONTINUE
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C LINE FINISHED - FIND IP2
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IF (IP2 .LE. 0) RETURN
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DO 120 I = 1, NUMN
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NEW = NXNLST (I)
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IF (NUID (NEW) .EQ. IP2) THEN
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NLIST = NLIST + 1
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IF (NLIST .GT. MXLIST) THEN
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NOROOM = .TRUE.
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RETURN
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ENDIF
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LIST (NLIST) = NEW
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LASTN = NEW
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RETURN
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ENDIF
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120 CONTINUE
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C LINE DID NOT MATCH UP RIGHT
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WRITE ( * , 10010)IP1, LINE, IP2
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ERR = .TRUE.
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RETURN
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10000 FORMAT (' POINT', I5, ' IS NOT IN THE MESH')
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10010 FORMAT (' P-L-P SEQUENCE OF', I5, ' -', I5, ' -', I5,
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& 'IS AN ILLEGAL SEQUENCE')
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END
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