Cloned SEACAS for EXODUS library with extra build files for internal package management.
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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 INVCON(INVLN,MAXLN,INVCN,ICONA)
C
C************************************************************************
C
C Subroutine INVC0N computes the inverse connectivity (elements connected
C to a node).
C
c Called by MAPVAR
C
C Calls ERROR
C
C************************************************************************
C
C INVLN INT The number of elements connected to a node (1:numnda)
C MAXLN INT The maximum number of elements connected to any node
C INVCN INT The inverse connectivity (1:maxln,1:numnda)
C ICONA INT The connectivity array (1:nelnda,1:numela)
C
C************************************************************************
C
C
include 'amesh.blk'
include 'ebbyeb.blk'
C
DIMENSION INVLN(*),INVCN(MAXLN,*),ICONA(nelnda,*)
C
C************************************************************************
C
DO I = 1, NODESA
INVLN(I) = 0
DO J = 1, MAXLN
INVCN(J,I) = 0
end do
end do
C
NNODES = NELNDA
IF (ITYPE .EQ. 6) NNODES = 4
DO J = 1, NUMEBA
DO I = 1, NNODES
node = icona(i,j)
IF (invln(node) .eq. 0 .or.
* INVCN(INVLN(node),node) .NE. J) THEN
INVLN(node) = INVLN(node) + 1
IF (INVLN(node) .GT. MAXLN)
& CALL ERROR('INVCON',' ',
& 'TOO MANY ELEMENTS CONNECTED TO NODE',
& node,'INVCN ARRAY DIMENSIONED FOR NO MORE THAN',
& MAXLN,'RESET IN SUBROUTINE RDA2',' ',1)
INVCN(INVLN(node),node) = J
END IF
end do
end do
RETURN
END