/usr/share/ncarg/tests/thstgr.f is in libncarg-data 6.3.0-6build1.
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C
C Define the error file, the Fortran unit number, the workstation type,
C and the workstation ID to be used in calls to GKS routines.
C
C PARAMETER (IERRF=6, LUNIT=2, IWTYPE=1, IWKID=1) ! NCGM
C PARAMETER (IERRF=6, LUNIT=2, IWTYPE=8, IWKID=1) ! X Windows
C PARAMETER (IERRF=6, LUNIT=2, IWTYPE=11, IWKID=1) ! PDF
C PARAMETER (IERRF=6, LUNIT=2, IWTYPE=20, IWKID=1) ! PostScript
C
PARAMETER (IERRF=6, LUNIT=2, IWTYPE=1, IWKID=1)
C
C OPEN GKS, OPEN WORKSTATION OF TYPE 1, ACTIVATE WORKSTATION
C
CALL GOPKS (IERRF, ISZDM)
CALL GOPWK (IWKID, LUNIT, IWTYPE)
CALL GACWK (IWKID)
C
C INVOKE DEMO DRIVER
C
CALL HSTGR(IERR,IWKID)
C
C DEACTIVATE AND CLOSE WORKSTATION, CLOSE GKS.
C
CALL GDAWK (IWKID)
CALL GCLWK (IWKID)
CALL GCLKS
C
STOP
END
C
SUBROUTINE HSTGR (IERROR,IWKID)
C
C PURPOSE To provide a demonstration of the HISTGR
C utility and to test each of the four IFLAG
C options.
C
C USAGE CALL HSTGR (IERROR,IWKID)
C
C ARGUMENTS
C
C ON OUTPUT IERROR
C An error flag
C = 0, If the test is successful,
C = 1, otherwise.
C
C I/O If the test is successful, the message
C
C HISTGR TEST SUCCESSFUL . . . SEE PLOT
C TO VERIFY PERFORMANCE
C
C is written on unit 6.
C
C In addition, three (3) labeled frames are
C produced. To determine if the test was
C successful examine these plots.
C
C PRECISION Single
C
C REQUIRED LIBRARY HISTGR
C FILES
C
C REQUIRED GKS LEVEL 0A
C
C LANGUAGE FORTRAN 77
C
C HISTORY Originally written May, 1985; revised
C August, 1987
C
C ALGORITHM THSTGR computes data and calls HISTGR
C 5 times, exercising different options.
C
C
C Array DAT1 is filled with values to be used as input for HISTGR
C
PARAMETER ( NDIM=320, NCLS=17, NWRK=374 )
C
C NWRK = NDIM + 3*(NCLS+1)
C
CHARACTER*1 IFC
CHARACTER*55 MON
REAL DAT1(NDIM,2), X, ARR7(7), WORK(NWRK)
REAL RGB(3,15), CLASS(NCLS+1)
REAL SPAC(2)
INTEGER COLORS(15)
C
C Define the RGB triples needed below.
C
DATA RGB / 0.70, 0.70, 0.70,
- 0.75, 0.00, 1.00,
- 0.30, 0.10, 1.00,
- 0.10, 0.50, 1.00,
- 0.00, 0.70, 1.00,
- 0.00, 1.00, 1.00,
- 0.00, 1.00, 0.70,
- 0.00, 1.00, 0.00,
- 0.70, 0.00, 0.70,
- 1.00, 1.00, 0.00,
- 1.00, 0.75, 0.00,
- 1.00, 0.48, 0.00,
- 1.00, 0.00, 0.48,
- 1.00, 0.00, 0.00,
- 1.00, 1.00, 1.00 /
C
DATA TX /.5/, TY/.9765/
C
C Define 15 color indices, 14 spaced throughout the color
C spectrum, and the last one being white.
C
CALL GSCR(IWKID,0,0.,0.,0.)
DO 100 I = 1,15
CALL GSCR(IWKID,I,RGB(1,I),RGB(2,I),RGB(3,I))
100 CONTINUE
C
C Call ENTSR (from PORT library) to recover from warnings
C
CALL ENTSR(IDUM, 1)
C
C Change the Plotchar special character code from a : to a @
C
IFC(1:1) = '@'
CALL PCSETC('FC',IFC)
C
C
C Frame 1: Demonstrate the default version of HISTGR, IFLAG = 0.
C
IFLAG = 0
NCLASS = 11
NPTS = 320
C
DO 105 I=1,NPTS
DO 105 J=1,2
DAT1(I,J)=0.
105 CONTINUE
DO 110 I=1,NPTS
X = REAL(I)
DAT1(I,1) = 10. * ALOG10(0.1*X+1.)
110 CONTINUE
C
C (First call HSTOPL('DEF=ON') to activate all default options.)
C
CALL HSTOPL('DE=ON')
C
C Flush PLOTIT's buffers.
C
CALL PLOTIT(0,0,0)
C
C Set text and polyline color indices to 15 (white).
C
CALL GSTXCI(15)
CALL GSPLCI(15)
C
CALL PLCHLQ (TX,TY,
+'DEMONSTRATION PLOT FOR DEFAULT VERSION OF HISTGR',16.,0.,0.)
CALL HISTGR(DAT1, NDIM, NPTS, IFLAG, CLASS, NCLASS, WORK, NWRK)
C
C Frame 2: Demonstrate the comparison of two previously determined
C histograms, IFLAG = 3.
C
IFLAG = 3
NCLASS = 6
NPTS2 = 6
DO 200 I=1,NPTS2
DAT1(I,1)=2*SIN(REAL(I))
DAT1(I,2)=2.5*COS(REAL(I)/.5)
CLASS(I)=REAL(I)
200 CONTINUE
C
C (First call HSTOPL('DEF=ON') to activate all default options.)
C
CALL HSTOPL('DE=ON')
C
C Turn on color, title, perimeter, frequency, format, character,
C label, and spacing options.
C
COLORS(1) = 8
COLORS(2) = 3
COLORS(3) = 14
COLORS(4) = 11
COLORS(5) = 6
COLORS(6) = 13
COLORS(7) = 14
COLORS(8) = 5
CALL HSTOPI('COL=ON',3,0,COLORS,8)
C
C Choose large, horizontal alphanumeric labels for class labels.
C
CALL HSTOPC('TI=ON',
+'OPTIONS CHANGED: PRM,TIT,CHA,LAB,FOR,COL,FQN and SPA',7,3)
CALL HSTOPL('PR=ON')
CALL HSTOPC('FQ=ON','MONTHLY PRECIPITATION',7,3)
CALL HSTOPC('FO=ON','(F3.0)',9,3)
MON='JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC'
CALL HSTOPC('CH=ON',MON,12,3)
CALL HSTOPC('LA=ON','COMPARE TWO DATASETS',7,3)
SPAC(1) = 2.0
SPAC(2) = -1.5
CALL HSTOPR('SP=ON',SPAC,2)
C
C The second argument must be the actual dimension size of DAT1.
C
CALL HISTGR(DAT1, NDIM, NPTS2, IFLAG, CLASS, NCLASS, WORK, NWRK)
C
C Frame 3: Put four plots on 1 frame by setting FRAME = OFF for the
C first 3 plots and FRAME = ON for the last plot.
C
C Plot 1: IFLAG = 0, automatic sorting of the input data into
C NCLASS = 17 bins.
C
IFLAG = 0
NCLASS = 17
NPTS = 320
DO 210 I=1,NPTS
X = REAL(I)
DAT1(I,1) = 10. * ALOG10(0.1*X+1.)
210 CONTINUE
C
C (First call HSTOPL('DEF=ON') to activate all default options.)
C
CALL HSTOPL('DE=ON')
C
C Turn on horizontal bars, title, median, window, color,
C and spacing options.
C
C Choose large horizontal class labels.
C
CALL HSTOPC('TI=ON',
+'OPTIONS: HOR, WIN, FRA, MED, COL, SPA, & TIT',9,3)
CALL HSTOPL('HO=ON')
CALL HSTOPL('ME=ON')
C
C Plot 1 goes into the top left quadrant of the frame.
C
C ARR7 coordinates are XMIN, XMAX, YMIN, YMAX.
C
ARR7(1) = 0.
ARR7(2) = .5
ARR7(3) = .5
ARR7(4) = 1.
CALL HSTOPR('WI=ON',ARR7,4)
C
COLORS(1) = 8
COLORS(2) = 2
COLORS(3) = 10
COLORS(4) = 4
COLORS(5) = 5
COLORS(6) = 6
COLORS(7) = 7
COLORS(8) = 8
CALL HSTOPI('COL=ON',2,0,COLORS,8)
SPAC(1) = 3.0
SPAC(2) = 0.0
CALL HSTOPR('SP=ON',SPAC,2)
C
C Turn off the frame advance.
C
CALL HSTOPL('FR=OF')
CALL HISTGR(DAT1, NDIM, NPTS, IFLAG, CLASS, NCLASS, WORK, NWRK)
C
C Plot 2: IFLAG = 2, one set of 11 histogram classes and their
C associated values are plotted.
C
IFLAG = 2
NCLASS = 11
NPTS2 = 11
DO 650 I = 1, NPTS2
CLASS(I)=REAL(2*I)
DAT1(I,1)=(REAL(2*I))**0.5
650 CONTINUE
C
C (First call HSTOPL('DEF=ON') to activate all default options.)
C
CALL HSTOPL('DE=ON')
C
C Turn on title, label, frequency, format, and window options.
C
C Choose medium sized, horizontal labels for class labels
C
CALL HSTOPC('TI=ON',
+'OPTIONS CHANGED: LAB,FQN,TIT,FOR,FRA AND WIN',11,3)
CALL HSTOPC('LA=ON','Y VALUES ASSIGNED TO X VALUES',11,3)
CALL HSTOPC('FQ=ON','SQUARE ROOT OF CLASS MID-VALUES',
&12,3)
CALL HSTOPC('FO=ON','(I3)',11,3)
C
C Plot 2 goes into the top right quadrant of the frame.
C
ARR7(1) = .5
ARR7(2) = 1.
ARR7(3) = .5
ARR7(4) = 1.
CALL HSTOPR('WIN=ON',ARR7,4)
C
C Turn off color and frame advance options.
C
CALL HSTOPI('COL=OF',2,0,COLORS,8)
CALL HSTOPL('FR=OFF')
CALL HISTGR(DAT1, NDIM, NPTS2, IFLAG, CLASS, NCLASS, WORK, NWRK)
C
C Plot 3: IFLAG = 1, input values are sorted into a defined set of
C 8 classes.
C
IFLAG = 1
NCLASS = 8
NPTS = 320
X = 0.
DO 500 I = 1,NPTS
DAT1(I,1) = SIN(X)
X = X + .02
500 CONTINUE
C
CLASS(1) = -0.6
DO 550 I = 1,NCLASS
CLASS(I+1) = CLASS(I) + 0.20
550 CONTINUE
C
C (First call HSTOPL('DEF=ON') to activate all default options.)
C
CALL HSTOPL('DE=ON')
C
C Turn on class, draw line, format, title, and label options.
C
CALL HSTOPI('CL=ON',2,30,COLORS,8)
CALL HSTOPL('DR=ON')
CALL HSTOPC('FOR=ON','(F6.2)',9,3)
CALL HSTOPC('TI=ON',
+'OPTIONS CHANGED: CLA,DRL,FOR,TIT,LAB,MID,WIN,SHA and FRA',9,3)
CALL HSTOPC('LA=ON','CLASS VALUES CHOSEN FROM -0.6 to 1.0',
&9,3)
C
C Plot 3 goes into the lower left quadrant of the frame.
C
ARR7(1) = 0.
ARR7(2) = .5
ARR7(3) = 0.
ARR7(4) = .5
CALL HSTOPR('WI=ON',ARR7,4)
C
C Turn off color, midvalues, frame advance and shading options.
C
C Write the class labels at a 30 deg angle.
C
CALL HSTOPI('CO=OF',2,30,COLORS,8)
CALL HSTOPL('MI=OFF')
CALL HSTOPL('FR=OFF')
CALL HSTOPL('SH=OFF')
CALL HISTGR(DAT1, NDIM, NPTS, IFLAG, CLASS, NCLASS, WORK, NWRK)
C
C Plot 4: IFLAG = 0, input values are sorted into 11 equally sized
C bins over the range of the input values.
C
IFLAG = 0
NCLASS = 11
NPTS = 320
X = 0.
DO 310 I = 1,NPTS
DAT1(I,1) = SIN(X)
X = X + .02
310 CONTINUE
C
C (First call HSTOPL('DEF=ON') to activate all default options.)
C
CALL HSTOPL('DE=ON')
C
C Turn on class, frequency, format, title, window, and label options.
C
C Choose medium sized vertical class value labels.
C
CALL HSTOPI('CL=ON',2,90,COLORS,8)
CALL HSTOPC('FQN=ON','NUMBER OF OCCURENCES IN EACH CLASS',9,3)
CALL HSTOPC('FOR=ON','(F6.2)',9,3)
CALL HSTOPC('TI=ON',
+'OPTIONS CHANGED: CLA,LAB,FQN,TIT,SPA,PER,FOR AND WIN',9,3)
C
C Plot 4 goes into the lower right quadrant of the frame.
C
ARR7(1) = .5
ARR7(2) = 1.
ARR7(3) = 0.
ARR7(4) = .5
CALL HSTOPR('WIN=ON',ARR7,4)
CALL HSTOPC('LAB=ON','CLASS VALUES COMPUTED WITHIN HISTGR',
&9,3)
C
C Turn off color, spacing and percent axis options.
C
CALL HSTOPI('CO=OF',2,90,COLORS,8)
CALL HSTOPR('SP=OF',SPAC,2)
CALL HSTOPL('PER=OFF')
C
CALL HISTGR(DAT1, NDIM, NPTS, IFLAG, CLASS, NCLASS, WORK, NWRK)
C
C
IERROR = 0
WRITE (6,1001)
C
RETURN
C
1001 FORMAT (' HISTGR TEST SUCCESSFUL',24X,
1 'SEE PLOT TO VERIFY PERFORMANCE')
END
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