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67 lines
2.1 KiB
67 lines
2.1 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 LNCHK (PRTOK, OKAY)
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C=======================================================================
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C --*** LNCHK *** (PATHLN) Check that PATHLINE is a valid program to run
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C -- Written by Amy Gilkey - revised 05/25/88
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C --
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C --LNCHK checks that PATHLINE is a valid program. This is true if
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C --a mesh is defined (nodes, elements, connectivity, etc.) and
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C --there are history, global or nodal variables in the database.
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C --
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C --If the program is valid, a welcome message is printed.
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C --
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C --Parameters:
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C -- PRTOK - IN - if true, print error messages and welcome messages,
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C -- if false, check but do not print anything
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C -- OKAY - OUT - true iff the program is valid
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C --
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C --Common Variables:
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C -- Uses NDIM, NUMNP, NUMEL of /DBNUMS/
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include 'dbnums.blk'
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LOGICAL PRTOK
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LOGICAL OKAY
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C --Check header information from database
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IF ((NUMNP .LE. 0) .OR. (NUMEL .LE. 0) .OR. (NDIM .LE. 0)) THEN
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IF (PRTOK) CALL PRTERR ('CMDERR',
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& 'No mesh is defined')
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GOTO 100
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END IF
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IF ((NDIM .NE. 2) .AND. (NDIM .NE. 3)) THEN
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IF (PRTOK) CALL PRTERR ('CMDERR',
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& 'Only a 2D or 3D mesh may be plotted')
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GOTO 100
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END IF
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IF ((NVARHI + NVARGL + NVARNP) .LE. 0) THEN
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IF (PRTOK) CALL PRTERR ('CMDERR',
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& 'No non-element variables are defined')
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GOTO 100
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END IF
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IF ((NSTEPS .LE. 0) .OR.
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& ((NSTEPW .LE. 0) .AND. (NVARHI .LE. 0))) THEN
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IF (PRTOK) CALL PRTERR ('CMDERR',
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& 'No time steps with variables are defined')
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GOTO 100
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END IF
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C --Write greeting message
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IF (PRTOK) WRITE (*, 10000)
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OKAY = .TRUE.
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RETURN
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100 CONTINUE
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OKAY = .FALSE.
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RETURN
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10000 FORMAT (' PATHLINE - a mesh pathline program')
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END
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