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44 lines
1.5 KiB
44 lines
1.5 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 GETDST( NODE1, NODE2, XN, YN, ZN, DIST)
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C=======================================================================
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C --*** GETDST *** (MESH) GETS DISTANCE BETWEEN TWO NODES
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C -- Written by RAY J. Meyers 21 June, 1990
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C --
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C -- calculates the distance between two nodes
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C -- (written because of referencing problem using a(xn) directly )
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C --
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C --Parameters:
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C --
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C -- NODE1 - IN - THE INDEX OF FIRST NODE
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C -- NODE2 - IN - THE INDEX OF FIRST NODE
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C -- XN - IN - THE ROTATED, DEFORMED X COORDINATES
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C -- YN - IN - THE ROTATED, DEFORMED Y COORDINATES
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C -- ZN - IN - THE ROTATED, DEFORMED Z COORDINATES
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C -- DIST - OUT - THE DISTANCE BETWEEN NODE1 AND NODE2
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C=======================================================================
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REAL XN(*), YN(*), ZN(*)
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COMMON /D3NUMS/ IS3DIM, NNPSUR, NUMNPF, LLNSET
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LOGICAL IS3DIM
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XDIST = XN(NODE2) - XN(NODE1)
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YDIST = YN(NODE2) - YN(NODE1)
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IF(IS3DIM) THEN
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ZDIST = ZN(NODE2) - ZN(NODE1)
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ELSE
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ZDIST = 0
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END IF
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DIST = SQRT( XDIST*XDIST + YDIST*YDIST + ZDIST*ZDIST)
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RETURN
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END
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