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104 lines
3.3 KiB
104 lines
3.3 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 PICK2D (PROMPT, CURSOR, MIDDEF, IFLD, INTYP, RFIELD,
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& XRES, YRES, *)
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C=======================================================================
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C --*** PICK2D *** (MESH) Pick a window point
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C -- Written by Amy Gilkey - revised 02/05/88
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C --
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C --PICK2D picks a user-selected window point. For cursor input, PICK2D
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C --puts a cursor on the screen, waits until the user positions the cursor,
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C --then translates the position into a 2D point. For character input,
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C --PICK2D gets an X,Y pair from the free-format fields (defaults are
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C --not allowed).
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C --
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C --Parameters:
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C -- PROMPT - IN - the point requested
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C -- CURSOR - IN - true iff cursor input
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C -- MIDDEF - IN - true if the middle of the displayed mesh is to be the
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C -- starting position, else use the last selected position
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C -- (cursor input only)
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C -- IFLD - IN/OUT - the free-format field index (character input only)
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C -- INTYP - IN - the free-format field types (character input only)
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C -- RFIELD - IN - the free-format real fields (character input only)
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C -- XRES, YRES - OUT - the returned point
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C -- * - return statement if error picking point
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C --
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C --Common Variables:
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C -- Sets DXLAST, DYLAST of /PICK/
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C -- Uses /PICK/
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PARAMETER (KLFT=1, KRGT=2, KBOT=3, KTOP=4, KNEA=5, KFAR=6)
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COMMON /PICK/ INITP, PKDEF,
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& PKMESH(KTOP), PKRMAT(3,3), PKRCEN(3),
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& DMESH(KTOP), DVRAT, DXMID, DYMID, DXLAST, DYLAST
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LOGICAL INITP, PKDEF
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CHARACTER*(*) PROMPT
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LOGICAL CURSOR
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LOGICAL MIDDEF
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INTEGER INTYP(*)
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REAL RFIELD(*)
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CHARACTER*80 XPRMPT
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CHARACTER CH
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IF (CURSOR) THEN
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IF (.NOT. INITP) THEN
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CALL PRTERR ('CMDERR', 'No mesh is displayed')
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GOTO 100
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END IF
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C --Put up the cursor at the default location and wait for the user
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C --to select a point
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IF (PROMPT .NE. ' ') THEN
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XPRMPT = 'Pick ' // PROMPT // '...'
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ELSE
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XPRMPT = ' '
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END IF
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IF (MIDDEF) THEN
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DXRES = DXMID
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DYRES = DYMID
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ELSE
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DXRES = DXLAST
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DYRES = DYLAST
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END IF
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CALL GRIKEY (XPRMPT, DXRES, DYRES, CH, *100)
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C --Save the selected position
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DXLAST = DXRES
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DYLAST = DYRES
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C --Translate the point from device coordinates into mesh coordinates
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XRES = PKMESH(KLFT) + (DXRES - DMESH(KLFT)) * DVRAT
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YRES = PKMESH(KBOT) + (DYRES - DMESH(KBOT)) * DVRAT
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ELSE
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C --Get the X,Y pair from the free-format fields, no defaults
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XPRMPT = PROMPT // ' X, Y'
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CALL FFNEED (IFLD, INTYP, 'R', 2,
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& XPRMPT(:LENSTR(XPRMPT)), *100)
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CALL FFREAL (IFLD, INTYP, RFIELD,
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& 'X', 0.0, XRES, *100)
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CALL FFREAL (IFLD, INTYP, RFIELD,
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& 'Y', 0.0, YRES, *100)
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END IF
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RETURN
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100 CONTINUE
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RETURN 1
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END
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