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SUBROUTINE HPDRIV (IFUNC, RBUF, NBUF, CHR, LCHR)
INTEGER IFUNC, NBUF, LCHR
REAL RBUF(*)
CHARACTER*(*) CHR
C-----------------------------------------------------------------------
C PGPLOT driver for Hewlett Packard HP 7221 pen plotter.
C-----------------------------------------------------------------------
C Version 1.0 - 1987 May 26 - T. J. Pearson.
C Version 1.1 - 1994 Dec 01 - TJP (revised for standard Fortran-77).
C
C-----------------------------------------------------------------------
CHARACTER*(*) DEVICE, DEFNAM
PARAMETER (DEVICE='HP7221 (Hewlett-Packard HP7221 pen plotter')
PARAMETER (DEFNAM='pgplot.hpplot')
CHARACTER*10 MSG
CHARACTER*11 GRHPLI
CHARACTER*5 GRHPCP
CHARACTER*1 HPCOL(7)
INTEGER IER, I0, J0, I1, J1, LASTI, LASTJ, UNIT, N1, N2, IC
INTEGER GRHPNC
INTEGER GROPTX
DATA HPCOL /'A', 'B', 'C', 'D', 'D', 'B', 'C'/
C-----------------------------------------------------------------------
C
GOTO( 10, 20, 30, 40, 50, 60, 70, 80, 90,100,
1 110,120,130,140,150,160,170,180,190,200,
2 210,220,230), IFUNC
GOTO 900
C
C--- IFUNC = 1, Return device name.-------------------------------------
C
10 CHR = DEVICE
LCHR = LEN(DEVICE)
RETURN
C
C--- IFUNC = 2, Return physical min and max for plot device, and range
C of color indices.---------------------------------------
C
20 RBUF(1) = 0
RBUF(2) = 16000
RBUF(3) = 0
RBUF(4) = 11400
RBUF(5) = 1
RBUF(6) = 7
NBUF = 6
RETURN
C
C--- IFUNC = 3, Return device resolution. ------------------------------
C
30 RBUF(1) = 1016.0
RBUF(2) = 1016.0
RBUF(3) = 2
NBUF = 3
RETURN
C
C--- IFUNC = 4, Return misc device info. -------------------------------
C (This device is Hardcopy, No cursor, No dashed lines, No area fill,
C No thick lines)
C
40 CHR = 'HNNNNNNNNN'
LCHR = 10
RETURN
C
C--- IFUNC = 5, Return default file name. ------------------------------
C
50 CHR = DEFNAM
LCHR = LEN(DEFNAM)
RETURN
C
C--- IFUNC = 6, Return default physical size of plot. ------------------
C
60 RBUF(1) = 0
RBUF(2) = 13208
RBUF(3) = 0
RBUF(4) = 10160
NBUF = 4
RETURN
C
C--- IFUNC = 7, Return misc defaults. ----------------------------------
C
70 RBUF(1) = 10
NBUF = 1
RETURN
C
C--- IFUNC = 8, Select plot. -------------------------------------------
C
80 CONTINUE
RETURN
C
C--- IFUNC = 9, Open workstation. --------------------------------------
C
90 CONTINUE
CALL GRGLUN(UNIT)
IER = GROPTX(UNIT, CHR(1:LCHR), DEFNAM, 1)
RBUF(1) = UNIT
NBUF = 2
IF (IER.NE.0) THEN
CALL GRWARN('Cannot open file for HP7221 plot')
RBUF(2) = 0
RETURN
END IF
RBUF(2) = 1
LASTI = -1
LASTJ = -1
WRITE (UNIT, '(A)') CHAR(27)//'.(~W`o(B2H}vA}~So(B2H}p`}'
WRITE (UNIT, '(A)') CHAR(27)//'.N0;19:'
WRITE (UNIT, '(A)') CHAR(27)//'.I128;5;17:'
RETURN
C
C--- IFUNC=10, Close workstation. --------------------------------------
C
100 CONTINUE
WRITE (UNIT, '(A)') 'po(B2H}v@'//CHAR(27)//'.)}'
CLOSE (UNIT)
CALL GRFLUN(UNIT)
RETURN
C
C--- IFUNC=11, Begin picture. ------------------------------------------
C
110 CONTINUE
WRITE (UNIT,'(A)') 'po(B2H}v@'//CHAR(27)//'.)}'
WRITE (UNIT,'(A)') CHAR(12)
WRITE (UNIT,'(A)') CHAR(27)//'.(~W`o(B2H}~So(B2H}p`}'
WRITE (UNIT,'(A)') CHAR(27)//'.N0;19:'
WRITE (UNIT,'(A)') CHAR(27)//'.I128;5;17:'
RETURN
C
C--- IFUNC=12, Draw line. ----------------------------------------------
C
120 CONTINUE
I0 = NINT(RBUF(1))
J0 = NINT(RBUF(2))
I1 = NINT(RBUF(3))
J1 = NINT(RBUF(4))
121 CONTINUE
IF ( (I0.EQ.LASTI) .AND. (J0.EQ.LASTJ) ) THEN
C -- pen down
GRHPLI(1:1) = 'q'
ELSE
C -- pen up
GRHPLI(1:1) = 'p'
END IF
C -- Encode the coordinate into the command string
CALL GRHP02(I0,J0,GRHPCP,GRHPNC)
N1 = GRHPNC + 1
IF (GRHPNC .GT. 0) GRHPLI(2:N1) = GRHPCP(1:GRHPNC)
CALL GRHP02(I1,J1,GRHPCP,GRHPNC)
N2 = GRHPNC + N1
IF (GRHPNC .GT. 0) GRHPLI(N1+1:N2) = GRHPCP(1:GRHPNC)
C -- Write the command string to the plot file
WRITE (UNIT,'(A)') CHAR(5)//GRHPLI(1:N2)//'}'
LASTI = I1
LASTJ = J1
RETURN
C
C--- IFUNC=13, Draw dot. -----------------------------------------------
C
130 CONTINUE
I1 = NINT(RBUF(1))
J1 = NINT(RBUF(2))
I0 = I1
J0 = J1
GOTO 121
C
C--- IFUNC=14, End picture. --------------------------------------------
C
140 CONTINUE
RETURN
C
C--- IFUNC=15, Select color index. -------------------------------------
C
150 CONTINUE
IC = NINT(RBUF(1))
IF (IC.LT.1) IC = 1
IF (IC.GT.7) IC = 1
WRITE (UNIT,'(A)') 'v'//HPCOL(IC)//'}'
RETURN
C
C--- IFUNC=16, Flush buffer. -------------------------------------------
C (Null operation: buffering is not implemented.)
C
160 CONTINUE
RETURN
C
C--- IFUNC=17, Read cursor. --------------------------------------------
C (Not implemented: should not be called.)
C
170 GOTO 900
C
C--- IFUNC=18, Erase alpha screen. -------------------------------------
C (Null operation: there is no alpha screen.)
C
180 CONTINUE
RETURN
C
C--- IFUNC=19, Set line style. -----------------------------------------
C (Not implemented: should not be called.)
C
190 GOTO 900
C
C--- IFUNC=20, Polygon fill. -------------------------------------------
C (Not implemented: should not be called.)
C
200 GOTO 900
C
C--- IFUNC=21, Set color representation. -------------------------------
C (Not implemented)
C
210 CONTINUE
RETURN
C
C--- IFUNC=22, Set line width. -----------------------------------------
C (Not implemented: should not be called.)
C
220 GOTO 900
C
C--- IFUNC=23, Escape. -------------------------------------------------
C
230 CONTINUE
WRITE (UNIT, '(A)') CHR(:LCHR)
LASTI = -1
RETURN
C-----------------------------------------------------------------------
C Error: unimplemented function.
C
900 WRITE (MSG,'(I10)') IFUNC
CALL GRWARN('Unimplemented function in HP device driver: '//MSG)
NBUF = -1
RETURN
C-----------------------------------------------------------------------
END
SUBROUTINE GRHP02(GRHPNX,GRHPNY,GRHPCP,GRHPNC)
C-----------------------------------------------------------------------
C GRPCKG (internal routine, HP7221):
C This subroutine translates the INTEGER coordinates into the
C appropriate HP MBP format, and returns them as a single
C character*5 string.
C Reference: HP 7221B Graphics Plotter Operating and
C Programming Manual, HP Part # 07221-90014
C
C Arguments: GRHPNX : X coord of point in plotter units (<= 16383)
C GRHPNY : ditto Y
C GRHPCP : output character string with coded position
C GRHPNC : number of bytes used in GRHPNC
C
C (18-July-1983, R. S. Simon)
C-----------------------------------------------------------------------
INTEGER GRHPNX, GRHPNY, GRHPNC, N, NX1, NX2, NX3, NXR
INTEGER NY2, NY3, NY4, NY5, NYR, NP1, NP2, NP3, NP4, NP5
CHARACTER*5 GRHPCP
C
GRHPNC = 0
NP1 = 0
NP2 = 0
NP3 = 0
NP4 = 0
NP5 = 0
C
IF (GRHPNX.LT.0.OR.GRHPNY.LT.0) THEN
CALL GRWARN('GRHPNX and/or GRHPNY is <0. Point not coded.')
RETURN
END IF
C
N = MAX(GRHPNX,GRHPNY)
C
IF (N.GT.16383) THEN
CALL GRWARN('GRHPNX and/or GRHPNY too big. Point not coded.')
RETURN
ELSE IF (N .GT. 2047) THEN
GRHPNC = 5
NX1 = GRHPNX/1024
NXR = GRHPNX - 1024 * NX1
NX2 = NXR/16
NX3 = NXR - 16 * NX2
NY3 = GRHPNY/4096
NYR = GRHPNY - 4096 * NY3
NY4 = NYR/64
NY5 = NYR - 64 * NY4
NP1 = NX1 + 96
NP2 = NX2
IF (NP2.LE.31) NP2 = NP2 + 64
NP3 = NY3 + 4 * NX3
IF (NP3.LE.31) NP3 = NP3 + 64
NP4 = NY4
IF (NP4.LE.31) NP4 = NP4 + 64
NP5 = NY5
IF (NP5.LE.31) NP5 = NP5 + 64
ELSE IF (N .GT. 255) THEN
GRHPNC = 4
NX1 = GRHPNX/128
NXR = GRHPNX - 128 * NX1
NX2 = NXR/2
NX3 = NXR - 2 * NX2
NY3 = GRHPNY/64
NY4 = GRHPNY - 64 * NY3
NP1 = NX1 + 96
NP2 = NX2
IF (NP2.LE.31) NP2 = NP2 + 64
NP3 = NY3 + 32 * NX3
IF (NP3.LE.31) NP3 = NP3 + 64
NP4 = NY4
IF (NP4.LE.31) NP4 = NP4 + 64
ELSE IF (N .GT. 31) THEN
GRHPNC = 3
NX1 = GRHPNX/16
NX2 = GRHPNX - 16 * NX1
NY2 = GRHPNY/64
NY3 = GRHPNY - 64 * NY2
NP1 = NX1 + 96
NP2 = NY2 + 4 * NX2
IF (NP2.LE.31) NP2 = NP2 + 64
NP3 = NY3
IF (NP3.LE.31) NP3 = NP3 + 64
ELSE IF (N .GT. 3) THEN
GRHPNC = 2
NX1 = GRHPNX/2
NX2 = GRHPNX - 2 *NX1
NP1 = NX1 + 96
NP2 = GRHPNY + 32 * NX2
IF (NP2.LE.31) NP2 = NP2 + 64
ELSE IF (N .GE. 0) THEN
GRHPNC = 1
NP1 = GRHPNY + 96 + 4 * GRHPNX
END IF
C
GRHPCP = CHAR(NP1)//CHAR(NP2)//CHAR(NP3)//CHAR(NP4)//CHAR(NP5)
RETURN
END
|
