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37 lines
1.6 KiB
37 lines
1.6 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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SUBROUTINE ELCENT (ELCEN, IX, COORD, NDIM, NUMEL, NELNOD, NUMNP)
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DIMENSION ELCEN(NUMEL, *), IX(NELNOD, *), COORD(NUMNP, *)
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IF (NDIM .EQ. 2) THEN
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DO 10 I=1, NUMEL
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ELCEN(I,1) = (COORD(IX(1,I),1) + COORD(IX(2,I),1) +
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* COORD(IX(3,I),1) + COORD(IX(4,I),1))/4.0
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ELCEN(I,2) = (COORD(IX(1,I),2) + COORD(IX(2,I),2) +
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* COORD(IX(3,I),2) + COORD(IX(4,I),2))/4.0
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10 CONTINUE
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ELSE
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DO 20 I=1, NUMEL
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ELCEN(I,1) = (COORD(IX(1,I),1) + COORD(IX(2,I),1) +
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* COORD(IX(3,I),1) + COORD(IX(4,I),1) +
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* COORD(IX(5,I),1) + COORD(IX(6,I),1) +
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* COORD(IX(7,I),1) + COORD(IX(8,I),1))/8.0
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ELCEN(I,2) = (COORD(IX(1,I),2) + COORD(IX(2,I),2) +
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* COORD(IX(3,I),2) + COORD(IX(4,I),2) +
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* COORD(IX(5,I),2) + COORD(IX(6,I),2) +
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* COORD(IX(7,I),2) + COORD(IX(8,I),2))/8.0
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ELCEN(I,3) = (COORD(IX(1,I),3) + COORD(IX(2,I),3) +
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* COORD(IX(3,I),3) + COORD(IX(4,I),3) +
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* COORD(IX(5,I),3) + COORD(IX(6,I),3) +
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* COORD(IX(7,I),3) + COORD(IX(8,I),3))/8.0
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20 CONTINUE
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END IF
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RETURN
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END
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