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66 lines
1.9 KiB
66 lines
1.9 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 GRIKEY (PROMPT, DX, DY, KEY, *)
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C=======================================================================
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C --*** GRIKEY *** (GRPLIB) Position cursor and wait for a key (PLT)
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C -- Written by Amy Gilkey - revised 04/28/88
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C --
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C --GRIKEY positions a cursor and waits until a key is pressed.
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C --A message may be output before the cursor is positioned. The
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C --cursor position and the key are returned.
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C --
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C --The first time this routine is called, a warning message is output.
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C --
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C --Parameters:
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C -- PROMPT - IN - prompt for key if non-blank
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C -- DX, DY - IN/OUT - the device coordinates of cursor
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C -- KEY - OUT - returned key pressed; upper-case
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C -- * - the alternate return if cancel requested or cursor input error
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C --Routines Called:
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C -- PLTCRS - (PLTLIB) Select cursor position
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C -- PLTFLU - (PLTLIB) Flush buffer
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C -- LENSTR - (STRLIB) Find string length
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CHARACTER*(*) PROMPT
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REAL DX, DY
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CHARACTER KEY
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LOGICAL FIRST
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SAVE FIRST
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DATA FIRST / .TRUE. /
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CALL PLTFLU
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IF (FIRST) THEN
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WRITE (*, 10000)
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FIRST = .FALSE.
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END IF
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IF (PROMPT .NE. ' ') THEN
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WRITE (*, '(1X, A)') PROMPT(:LENSTR(PROMPT))
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END IF
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CALL PLTCRS (DX, DY, KEY)
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IF ((DX .LT. 0.0) .OR. (DX .GT. 1.0)
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& .OR. (DY .LT. 0.0) .OR. (DY .GT. 1.0)) THEN
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WRITE (*, 10010)
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RETURN 1
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END IF
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CALL EXUPCS (KEY)
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RETURN
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10000 FORMAT (/,
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& 15X,'*** Press SPACE or a letter to pick a point ***', /)
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10010 FORMAT (/,
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& ' *** ERROR on cursor input ***', /)
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END
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