/usr/share/ncarg/tests/tthree.f is in libncarg-data 6.3.0-6build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | PROGRAM TTHREE
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 THREE(IERR)
C
C DEACTIVATE AND CLOSE WORKSTATION, CLOSE GKS.
C
CALL GDAWK (IWKID)
CALL GCLWK (IWKID)
CALL GCLKS
C
STOP
END
C
SUBROUTINE THREE (IERROR)
C
C PURPOSE To provide a simple demonstration of THREED.
C
C USAGE CALL THREE (IERROR)
C
C ARGUMENTS
C
C ON OUTPUT IERROR
C An integer variable
C = 0, if the test was successful,
C = 1, the test was not successful.
C
C I/O If the test is successful, the message
C
C THREED TEST EXECUTED--SEE PLOT TO CERTIFY
C
C is printed on unit 6. In addition, 1
C frame is produced on the machine graphics
C device. In order to determine if the test
C was successful, it is necessary to examine
C the plot.
C
C PRECISION Single
C
C LANGUAGE FORTRAN 77
C
C REQUIRED ROUTINES THREED
C
C REQUIRED GKS LEVEL 0A
C
C ALGORITHM Routine TTHREE calls SET3 to establish a
C mapping between the plotter addresses and
C the user's volume, and to indicate the
C coordinates of the eye position from which
C the lines to be drawn are viewed. Next,
C the volume perimeters and associated tick
C marks are drawn by calls to PERIM3. The
C selected latitude and longitude lines of
C a sphere are then drawn.
C
C HISTORY THREED was originally written in November
C 1976 and converted to FORTRAN 77 and GKS
C in July 1984.
C
REAL EYE(3),X(31),Y(31),Z(31)
C
C Specify the arguments to be used by routine SET3 on a plot
C grid in the address range of 0. to 1. In each coordinate direction,
C the values RXA, RXB, RYA, and RYB define the portion of the address
C space to be used in making the plot. UC, UD, VC, VD, WC, and WD
C define a volume in user coordinates which is to be mapped onto the
C portion of the viewing surface as specified by RXA, RXB, RYA, and RYB.
C
DATA RXA/0.097656/, RXB/0.90236/, RYA/0.097656/, RYB/0.90236/
DATA UC/-1./, UD/1./, VC/-1./, VD/1./, WC/-1./, WD/1./
DATA EYE(1),EYE(2),EYE(3)/10.,6.,3./
DATA TX/0.4374/, TY/0.9570/
DATA PI/3.1415926535898/
C
C Select normalization transformation 0.
C
CALL GSELNT (0)
C
C Call SET3 to establish a mapping between the plotter addresses
C and the user's volume, and to indicate the coordinates of the
C eye position from which the lines to be drawn are viewed.
C
CALL SET3(RXA,RXB,RYA,RYB,UC,UD,VC,VD,WC,WD,EYE)
C
C Call PERIM3 to draw perimeter lines and tick marks.
C
CALL PERIM3(2,5,1,10,1,-1.)
CALL PERIM3(4,2,1,1,2,-1.)
CALL PERIM3(2,10,4,5,3,-1.)
C
C Define and draw latitudinal lines on the sphere of radius one
C having its center at (0.,0.,0.)
C
DO 10 J=1,18
THETA = REAL(J)*PI/9.
CT = COS(THETA)
ST = SIN(THETA)
DO 20 K=1,31
PHI = REAL(K-16)*PI/30.
Z(K) = SIN(PHI)
CP = COS(PHI)
X(K) = CT*CP
Y(K) = ST*CP
20 CONTINUE
CALL CURVE3(X,Y,Z,31)
10 CONTINUE
C
C Define and draw longitudinal lines on the sphere of radius one
C having its center at (0.,0.,0.)
C
DO 30 K=1,5
PHI = REAL(K-3)*PI/6.
SP = SIN(PHI)
CP = COS(PHI)
DO 40 J=1,31
TUETA = REAL(J-1)*PI/15.
X(J) = COS(TUETA)*CP
Y(J) = SIN(TUETA)*CP
Z(J) = SP
40 CONTINUE
CALL CURVE3(X,Y,Z,31)
30 CONTINUE
C
C Add a plot title.
C
CALL PLCHLQ(TX,TY,'DEMONSTRATION PLOT FOR ROUTINE THREED',
+ 16.,0.,0.)
C
C Advance the frame.
C
CALL FRAME
C
IERROR = 0
WRITE(6,1001)
RETURN
C
1001 FORMAT (' THREED TEST EXECUTED--SEE PLOT TO CERTIFY')
END
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