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39 lines
1.2 KiB
39 lines
1.2 KiB
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 TNODES (IFACE, LINKE, NODEF)
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C=======================================================================
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C --*** TNODES *** (MESH) Get nodes for tet element's face
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C --
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C --TNODES returns the nodes for a given face of a tetrahedral element.
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C --The 3-tuple sequence defining the face is counter-clockwise looking
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C --into the element.
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C --
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C --Parameters:
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C -- IFACE - IN - the face number
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C -- LINKE - IN - the tetrahedral element connectivity
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C -- NODEF - OUT - the nodes in the extracted face
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INTEGER LINKE(6), NODEF(4)
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INTEGER KFACE(3,4)
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SAVE KFACE
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C --KFACE(*,i) - the indices of the 3 nodes in face i
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DATA KFACE /
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$ 1, 2, 4,
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$ 2, 3, 4,
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& 1, 4, 3,
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$ 1, 3, 2 /
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DO 100 K = 1, 3
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NODEF(K) = LINKE(KFACE(K,IFACE))
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100 CONTINUE
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NODEF(4) = LINKE(KFACE(1,IFACE))
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RETURN
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END
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