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104 lines
3.2 KiB
104 lines
3.2 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 FNDSEL (NODVAR, NNENUM, NENUM,
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& LENF, NLNKF, LINKF, IF2EL, IX2NP,
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& NPSURF, NSEL, NPSEL)
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C=======================================================================
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C --*** FNDSEL *** (MESH) Find selected nodes/elements
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C -- Written by Amy Gilkey - revised 03/31/88
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C --
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C --FNDSEL constructs a logical array of the selected nodes and elements
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C --that are on the surface of a 3D mesh.
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C --
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C --Parameters:
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C -- NODVAR - IN - true if nodal versus element plot
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C -- NNENUM - IN - the number of selected nodes/elements
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C -- NENUM - IN - the selected nodes/elements
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C -- LENF - IN - the cumulative face counts by element block (if element)
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C -- NLNKF - IN - the number of nodes per face (if element)
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C -- LINKF - IN - the connectivity for all faces (if element)
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C -- IF2EL - IN - the element number of each face (if element)
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C -- IX2NP - IN - the node number for each mesh index (if nodal)
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C -- NPSURF - IN - the node numbers of the surface nodes (if nodal)
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C -- NSEL - OUT - the number of selected nodes
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C -- NPSEL - OUT - the node numbers of the selected nodes
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C --
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C --Common Variables:
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C -- Uses NDIM of /DBNUMS/
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C -- Uses NNPSUR, NUMNPF of /D3NUMS/
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include 'dbnums.blk'
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COMMON /D3NUMS/ IS3DIM, NNPSUR, NUMNPF, LLNSET
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LOGICAL IS3DIM
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LOGICAL NODVAR
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INTEGER NENUM(NNENUM)
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INTEGER LENF(0:NELBLK)
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INTEGER NLNKF(NELBLK)
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INTEGER LINKF(*)
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INTEGER IF2EL(*)
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INTEGER IX2NP(NUMNPF)
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INTEGER NPSURF(*)
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INTEGER NPSEL(*)
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INTEGER IFACES(10)
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IF (NODVAR) THEN
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IF (.NOT. IS3DIM) THEN
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CALL INIINT (NUMNPF, 0, NPSEL)
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DO 100 NNP = 1, NNENUM
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INP = NENUM(NNP)
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IF (INP .GT. 0) NPSEL(INP) = 1
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100 CONTINUE
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ELSE
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CALL INIINT (NUMNPF, -1, NPSEL)
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DO 110 IX = 1, NNPSUR
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INP = NPSURF(IX)
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NPSEL(INP) = 0
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110 CONTINUE
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DO 120 NNP = 1, NNENUM
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INP = NENUM(NNP)
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IF (INP .GT. 0) THEN
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IF (NPSEL(INP) .EQ. 0) NPSEL(INP) = 1
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END IF
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120 CONTINUE
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END IF
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ELSE
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CALL INIINT (NUMNPF, 0, NPSEL)
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DO 150 NEL = 1, NNENUM
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IEL = NENUM(NEL)
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CALL FNDE2F (IEL, LENF, IF2EL, NFARY, IFACES, IELB)
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DO 140 N = 1, NFARY
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IFAC = IFACES(N)
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IELB = 0
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IXL0 = IDBLNK (IELB, IFAC, LENF, NLNKF) - 1
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DO 130 K = 1, NLNKF(IELB)
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INP = LINKF(IXL0+K)
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NPSEL(INP) = 1
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130 CONTINUE
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140 CONTINUE
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150 CONTINUE
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END IF
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C --Make up the list of selected nodes
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NSEL = 0
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DO 160 INP = 1, NUMNPF
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IF (NPSEL(INP) .GT. 0) THEN
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NSEL = NSEL + 1
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NPSEL(NSEL) = INP
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END IF
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160 CONTINUE
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RETURN
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END
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