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35 lines
1.1 KiB
35 lines
1.1 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 EXSIDE (MXND, XN, YN, LNODES, ANGLE, N1, XNEW, YNEW)
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C***********************************************************************
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C SUBROUTINE EXSIDE = CALCULATES A POSITION AN AVERAGE LENGTH AWAY
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C FROM A SIDE NODE
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C***********************************************************************
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DIMENSION XN (MXND), YN (MXND), LNODES (7, MXND), ANGLE (MXND)
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N0 = LNODES (2, N1)
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N2 = LNODES (3, N1)
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ANG = ATAN2 (YN (N2) - YN (N1), XN (N2) - XN (N1)) +
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& (ANGLE (N1) * .5)
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DIST1 = SQRT ( (YN (N2) - YN (N1) ) **2 +
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& ( XN (N2) - XN (N1) ) **2)
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DIST2 = SQRT ( (YN (N0) - YN (N1) ) **2 +
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& ( XN (N0) - XN (N1) ) **2)
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DIST = (DIST1 + DIST2) * .5
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XNEW = (DIST * COS (ANG) ) + XN (N1)
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YNEW = (DIST * SIN (ANG) ) + YN (N1)
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RETURN
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END
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