C Copyright(C) 1999-2020 National Technology & Engineering Solutions C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with C NTESS, the U.S. Government retains certain rights in this software. C C See packages/seacas/LICENSE for details C======================================================================= SUBROUTINE FIXELB (IELBST, LENF, IF2EL, IF2EL2, IE2ELB, NEWELB) C======================================================================= C --*** FIXELB *** (MESH) Turn on/off element blocks (3D) C -- Written by Amy Gilkey - revised 03/10/88 C -- C --FIXELB adjusts the face array to reflect the new ON element blocks. C --Faces in OFF element blocks are moved to the LENF(NELBLK+4) set. C -- C --Parameters: C -- IELBST - IN - the element block status (>=0 if ON) C -- LENF - IN - the cumulative face counts by element block (3D only) C -- IF2EL - IN - the element number of each face C -- IF2EL2 - IN - the secondary element number of each face C -- IE2ELB - IN - the element block for each element C -- NEWELB - OUT - size = LENF(NELBLK+1) C -- C --Common Variables: C -- Uses NELBLK of /DBNUMS/ include 'dbnums.blk' COMMON /D3NUMS/ IS3DIM, NNPSUR, NUMNPF, LLNSET LOGICAL IS3DIM INTEGER IELBST(NELBLK) INTEGER LENF(0:NELBLK+4) INTEGER IF2EL(*), IF2EL2(*) INTEGER IE2ELB(NUMEL) INTEGER NEWELB(*) C --Check each face by its defining elements, and move face if necessary DO 110 IELB = 1, NELBLK+4 DO 100 IFAC = LENF(IELB-1)+1, LENF(IELB) C --Determine the number of elements with ON element blocks NON = 0 IF (IELBST(IE2ELB(IF2EL(IFAC))) .GE. 0) NON = NON + 1 IEL = IF2EL2(IFAC) IF (IEL .GT. 0) THEN IF (IELBST(IE2ELB(IEL)) .GE. 0) NON = NON + 1 END IF IF (NON .EQ. 0) THEN C --If none ON, change to an OFF face NEWELB(IFAC) = NELBLK+4 ELSE IF (NON .EQ. 1) THEN C --If one face ON, change to a surface face IF (IELBST(IE2ELB(IF2EL(IFAC))) .GE. 0) THEN NEWELB(IFAC) = IE2ELB(IF2EL(IFAC)) ELSE C --Swap nodes to simulate surface being defined by facing element NEWELB(IFAC) = - IE2ELB(IF2EL2(IFAC)) END IF ELSE C --If both element blocks ON, change to an interior face NEWELB(IFAC) = NELBLK+1 END IF 100 CONTINUE 110 CONTINUE RETURN END