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141 lines
4.1 KiB
141 lines
4.1 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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C=======================================================================
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SUBROUTINE DBMIR1 (IELB, NUMELB, NUMLNK, LINK, NAME, NDIM, NONQUD)
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C=======================================================================
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C --*** DBMIR1 *** (GJOIN) Fixup element connectivity for reflections
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C -- Written by Greg Sjaardema - revised 02/10/89
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C -- Modified from DBOEB1 Written by Amy Gilkey
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C --
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C --Parameters:
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C -- IELB - IN - the element block number
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C -- NUMELB - IN - the number of elements in the block
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C -- NUMLNK - IN - the number of nodes per element
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C -- LINK - IN/OUT - the element connectivity for this block
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C -- NAME - IN - the element type for this block
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C -- NDIM - IN - the spatial dimension (1,2,3)
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C --
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include 'exodusII.inc'
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INTEGER NUMELB, NUMLNK
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INTEGER LINK(NUMLNK,*)
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CHARACTER*(MXSTLN) NAME
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LOGICAL NONQUD
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CHARACTER*132 STRING
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IF (NUMELB .GT. 0) THEN
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C...8-node Hexes
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IF ((NUMLNK .EQ. 8) .AND. (NDIM .EQ. 3) .AND.
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* NAME(:3) .EQ. 'HEX') THEN
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DO 10 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(4,NE)
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LINK(4,NE) = ILTMP
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ILTMP = LINK (6,NE)
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LINK(6,NE) = LINK(8,NE)
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LINK(8,NE) = ILTMP
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10 CONTINUE
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C...20-node Hexes
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ELSE IF ((NUMLNK .EQ. 20) .AND. (NDIM .EQ. 3) .AND.
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* NAME(:3) .EQ. 'HEX') THEN
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DO 15 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(4,NE)
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LINK(4,NE) = ILTMP
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ILTMP = LINK (6,NE)
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LINK(6,NE) = LINK(8,NE)
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LINK(8,NE) = ILTMP
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ILTMP = LINK ( 9,NE)
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LINK( 9,NE) = LINK(12,NE)
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LINK(12,NE) = ILTMP
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ILTMP = LINK (10,NE)
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LINK(10,NE) = LINK(11,NE)
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LINK(11,NE) = ILTMP
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ILTMP = LINK (14,NE)
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LINK(14,NE) = LINK(16,NE)
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LINK(16,NE) = ILTMP
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ILTMP = LINK (17,NE)
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LINK(17,NE) = LINK(20,NE)
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LINK(20,NE) = ILTMP
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ILTMP = LINK (18,NE)
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LINK(18,NE) = LINK(19,NE)
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LINK(19,NE) = ILTMP
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15 CONTINUE
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C...Quads/Shells
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ELSE IF ((NUMLNK .EQ. 4) .AND.
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* (NAME(:4) .EQ. 'QUAD' .OR. NAME(:5) .EQ. 'SHELL')) THEN
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if (name(:5) .eq. 'SHELL') NONQUD = .TRUE.
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DO 20 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(4,NE)
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LINK(4,NE) = ILTMP
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20 CONTINUE
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C...four-node tets...
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ELSE IF ((NUMLNK .EQ. 4) .AND.
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* (NAME(:3) .EQ. 'TET')) THEN
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NONQUD = .TRUE.
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DO 25 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(3,NE)
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LINK(3,NE) = ILTMP
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25 CONTINUE
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C...Bars
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ELSE IF (NUMLNK .EQ. 2) THEN
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NONQUD = .TRUE.
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DO 30 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(1,NE)
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LINK(1,NE) = ILTMP
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30 CONTINUE
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C...Triangles
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ELSE IF (NUMLNK .EQ. 3) THEN
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NONQUD = .TRUE.
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DO 40 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(3,NE)
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LINK(3,NE) = ILTMP
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40 CONTINUE
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C...6-node Triangles
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ELSE IF (NUMLNK .EQ. 6) THEN
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NONQUD = .TRUE.
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DO 50 NE = 1, NUMELB
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ILTMP = LINK (2,NE)
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LINK(2,NE) = LINK(3,NE)
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LINK(3,NE) = ILTMP
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ILTMP = LINK (4,NE)
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LINK(4,NE) = LINK(6,NE)
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LINK(6,NE) = ILTMP
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50 CONTINUE
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ELSE
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NONQUD = .TRUE.
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WRITE (STRING, 100) IELB, NUMLNK, NAME
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100 FORMAT('Element block ',I5,' contains ',I2,'-node ',A,
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* ' elements which are not supported for mirroring by gjoin2')
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CALL SQZSTR (STRING, LSTR)
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CALL PRTERR ('PROGRAM', STRING(:LSTR))
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END IF
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END IF
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RETURN
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END
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