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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
|
C*TTDRIV -- PGPLOT Tektronix terminal drivers
C+
SUBROUTINE TTDRIV (IFUNC, RBUF, NBUF, CHR, LCHR, MODE)
INTEGER IFUNC, NBUF, LCHR, MODE
REAL RBUF(*)
CHARACTER*(*) CHR
C
C PGPLOT driver for Tektronix terminals and emulators.
C
C 1993 Jan 18 - T. J. Pearson.
C 1993 Jun 24 - L. Staveley-Smith, minor alteration of
C flush-buffer for better /tek
C compatibility. Also added MODE 7 for
C Visual 603's and MODE 8 for IBM-PCs
C running as remote terminals using
C Kermit version 3 (for DOS).
C 1994 Dec 19 - TJP: better XTERM support.
C 1994 Dec 29 - TJP: and Tek4100 support (MODE 9).
C 1996 Apr 18 - TJP: prevent concurrent access.
C 1998 Mar 09 - M. Zolliker: new MODE 10 for VersaTerm-PRO for Macintosh
C
C Supported device:
C 1. Tektronix 4006/4010 storage-tube terminal; can be used with
C emulators, but the options below take advantage of features not
C present in the basic Tektronix terminal.
C 2. GraphOn Corporation 200-series terminals. These emulate a
C Tektronix-4010 with enhancements (selective erase, rectangle fill,
C switch between Tek and VT100 modes).
C 3. Digital Engineering, Inc., Retrographics modified VT100
C terminal (VT640).
C 4. IRAF GTERM Tektronix terminal emulator, with color extensions.
C 5. Xterm window on an X-window server. Emulates a Tektronix-4014,
C with extensions (switch between Tek and VT100 windows).
C 6. ZSTEM 240 and ZSTEM 4014 terminal emulators for the IBM PC and
C clones. ZSTEM supports Tektronix 4014 emulation and the 4105 color
C escape sequences. ZSTEM can be obtained from: KEA Systems Ltd.,
C 2150 West Broadway, Suite 412, Vancouver, British Columbia, Canada,
C V6K 4L9.
C 7.Visual-603 and 630 terminals. These are VT100/220 compatible
C terminals with Tektronix 4010/4014 emulation (Visual Technology
C Incorporated, 1703 Middlesex Street, Lowell, Mass 01851). The
C Visual 630 has the capability of displaying dual text and graphics.
C This feature is not used in this driver. Graphics mode is entered
C automatically when the graph is drawn but only exited when PGPAGE
C or PGEND is called. Therefore, for multiple plots interspersed
C with text I/O, use PGPAGE at the end of each plot. This will prompt
C for a carriage return before switching. If this is not done,
C intervening text will appear on the graphics screen. Graphics mode
C can be entered and exited from the setup menu, or by SHIFT-PF1.
C Graphics extensions include rectangle fill, selective erase and
C switch between Tek and VT100 modes.
C 8.IBM PC's and compatibles running MS-Kermit 3 as a terminal emulator.
C The video board is assumed to have sufficient memory to retain the
C graphics image in memory when switched to text. This will be true
C for VGA and EGA, but some early PCs might not be able to do this.
C If Kermit is using full VGA resolution (ie SET TERMINAL GRAPHICS
C VGA), there is not usually enough memory to store the full 480
C vertical lines, so the bottom few lines may disappear. Tektronix
C enhancements include selective erase, colours, rectangle fill, and
C switching between text and graphics mode. The cursor may be
C operated with the mouse. Tested with Kermit version 3.1.
C 9.Tektronix 4100 series color terminals (and emulators)
C 10.Versaterm-PRO for Macintosh (Tek 4105 emulation).
C
C Device type codes:
C 1. /TEK4010 Tektronix-4010 terminal
C 2. /GF GraphOn terminal
C 3. /RETRO Retrographics VT640 terminal
C 4. /GTERM GTERM terminal emulator
C 5. /XTERM XTERM terminal emulator
C 6. /ZSTEM ZSTEM terminal emulator
C 7. /V603 Visual V603 terminal
C 8. /KRM3 Kermit 3 on IBM-PC
C 9. /TK4100 Tektronix 4100 series terminals
C 10. /VMAC VersaTerm-PRO for Macintosh
C
C Default device name: the logged-in terminal
C /dev/tty (UNIX)
C TT: (VMS)
C
C Default view surface dimensions:
C Depends on monitor; nominally 8in (horizontal) by 6in (vertical).
C
C Resolution:
C A standard Tektronix terminal displays a screen of 1024 pixels
C (horizontal) by 780 pixels (vertical), with a nominal resolution
C of 130 pixels per inch. The actual resolution may be less.
C
C Color capability:
C /TEK4010, /XTERM: none; only color index 1 is available; selective
C erase is not possible. Requests to draw in color index 0 are
C ignored.
C /GF, /RETRO, /V603: color indices 0 (erase, black) and 1 (bright:
C usually white, green or amber) are supported. It is not
C possible to change color representation.
C /GTERM: color indices 0 to 15 are available and default to the
C standard PGPLOT colors. The color representation can be changed.
C /ZSTEM: color indices 0 to 7 are available and default to the
C indicated in the ZSTEM setup menu (which default to the standard
C PGPLOT colors). The color representation cannot be changed.
C /KRM3: color indices 0 to 7 are the standard PGPLOT colors. Indices
C 8 to 14 are also available, but are BRIGHT versions of 1 to 7,
C and thus non-standard. Color representation can't be changed.
C /TK4100: color indices 0-15.
C /VMAC: color indices 0 to 15 are available and default to the
C standard PGPLOT colors. The color representation can be changed.
C Caution: this does not work reliably, owing to bugs (?) in
C Versaterm.
C
C Input capability:
C Depending on the emulation, the graphics cursor may be a pointer,
C a small cross, or a crosshair across the entire screen. The user
C positions the cursor using thumbwheels, mouse, trackball, or the
C arrow keys on the keyboard. The user indicates that the cursor has
C been positioned by typing any printable ASCII character on the
C keyboard. Most control characters (eg, ^C) are intercepted by the
C operating system and cannot be used.
C
C File format:
C Binary byte stream. Under Unix, the output may be directed to
C a file; under VMS, this is not possible: the output device must
C be a terminal.
C
C Obtaining hardcopy:
C
C Environment variables:
C None.
C--
C Implementation Notes:
C
C Standard Tektronix codes:
C graph mode: [GS]=char(29)
C alpha mode: [US]=char(31)
C The emulators provide various extensions to basic Tektronix
C operation, using the following codes:
C [SOH]=char(1), [STX]=char(2), [ETX]=char(3),
C [DLE]=char(16), [CAN]=char(24), [ESC]=char(27)
C
C Enter Tektronix mode (from VT100 mode):
C graphon: automatic on receipt of [GS]
C gterm: [GS]
C tek: not available
C retro: automatic on receipt of [GS]
C xterm: [ESC][?38h
C zstem: [ESC][?38h
C v603: [GS]
C krm3: [ESC][?38h
C Return to VT100 mode (from Tektronix mode):
C graphon: [CAN]
C gterm: [CAN]
C tek: not available
C xterm: [ESC][ETX]
C zstem: [CAN]
C v603: [CAN][ESC][?38l
C krm3: [ESC][?38l
C Rectangle fill:
C graphon: draw the diagonal in special rectangle mode,
C entered with [ESC][STX], exit with [ESC][ETX]
C v603: bottom corner and rectangle width
C krm3: bottom corner and rectangle width
C vmac: use panel boundary commands [ESC]LP and [ESC]LE
C Color index zero (erase):
C graphon select erase: [ESC][DLE]
C graphon unselect erase: [ESC][SOH]
C retro,v603 select erase: [ESC]/1d
C retro,v603 unselect erase: [ESC]/0d
C krm3, select erase: [ESC][0;30m
C krm3, unselect erase: [ESC][0;37m
C-----------------------------------------------------------------------
INTEGER NDEVS
PARAMETER (NDEVS=10)
INTEGER CAN, ESC, GS, US
PARAMETER (CAN=24, ESC=27, GS=29, US=31)
C
CHARACTER*48 DEVICE(NDEVS)
SAVE DEVICE
CHARACTER*80 TEXT
CHARACTER*32 CTMP, CADD, CSCR(4)*4
CHARACTER*500 CBUF
SAVE CBUF
INTEGER I, J, INTEN, I0, J0, I1, J1, LADD, LTMP, ICH, IER
INTEGER XSIZE(NDEVS), YSIZE(NDEVS), MAXCI(NDEVS), I4014(NDEVS)
SAVE XSIZE, YSIZE, MAXCI, I4014
INTEGER ICHAN, LASTI, LASTJ, NPAGE, ICI, LBUF, STATE
SAVE ICHAN, LASTI, LASTJ, NPAGE, ICI, LBUF, STATE
INTEGER GROTER
INTEGER IBUF(4), ITOT
LOGICAL APPEND
SAVE APPEND
REAL XRESLN(NDEVS), YRESLN(NDEVS)
SAVE XRESLN, YRESLN
REAL HUE,SAT,LIG
LOGICAL SEFCOL
SAVE SEFCOL
C
INTEGER IRGB(3,0:15), TKRGB(3,0:15)
C
DATA DEVICE(1) /'TEK4010 (Tektronix 4010 terminal)'/
DATA DEVICE(2) /'GF (GraphOn Tek terminal emulator)'/
DATA DEVICE(3) /'RETRO (Retrographics VT640 Tek emulator)'/
DATA DEVICE(4) /'GTERM (Color gterm terminal emulator)'/
DATA DEVICE(5) /'XTERM (XTERM Tek terminal emulator)'/
DATA DEVICE(6) /'ZSTEM (ZSTEM Tek terminal emulator)'/
DATA DEVICE(7) /'V603 (Visual 603 terminal)'/
DATA DEVICE(8) /'KRM3 (Kermit 3 IBM-PC terminal emulator)'/
DATA DEVICE(9) /'TK4100 (Tektronix 4100 terminals)'/
DATA DEVICE(10) /'VMAC (VersaTerm-PRO for Mac, Tek 4105)'/
C TEK GF RET GTER XTER ZSTE V603 KRM3 TK41 VMAC
DATA XSIZE /1023,1023,1023,1023,1023,1023,1023,1023,1023,1023/
DATA YSIZE / 779, 779, 779, 779, 779, 779, 779, 779, 779, 779/
DATA MAXCI / 1, 1, 1, 15, 1, 7, 1, 14, 15, 15/
DATA XRESLN/130.,128.,128.,130.,128.,130.,115.,110.,100.,128./
DATA YRESLN/130.,130.,130.,130.,130.,130.,115.,110.,100.,128./
DATA I4014/ 0, 0, 0, 0, 1, 1, 0, 0, 1, 1/
DATA IRGB / 0, 0, 0, 255,255,255, 255, 0, 0, 0,255, 0,
1 0, 0,255, 0,255,255, 255, 0,255, 255,255, 0,
2 255,128, 0, 128,255, 0, 0,255,128, 0,128,255,
3 128, 0,255, 255, 0,128, 085,085,085, 170,170,170/
DATA TKRGB/ 0, 0, 0, 100,100,100, 100, 0, 0, 0,100, 0,
1 0, 0,100, 0,100,100, 100, 0,100, 100,100, 0,
2 100, 50, 0, 50,100, 0, 0,100, 50, 0, 50,100,
3 50, 0,100, 100, 0, 50, 33, 33, 33, 67, 67, 67/
DATA STATE/0/
C-----------------------------------------------------------------------
C
IF (MODE.LT.1 .OR. MODE.GT.NDEVS) CALL GRWARN('Error in GRTT00')
GOTO( 10, 20, 30, 40, 50, 60, 70, 80, 90,100,
1 110,120,130,140,150,160,170,180,900,900,
2 210,900,900,240), IFUNC
C -- Ignore unimplemented function
900 RETURN
C
C--- IFUNC = 1, Return device name.-------------------------------------
C
10 CONTINUE
CHR = DEVICE(MODE)
LCHR = LEN(DEVICE(MODE))
RETURN
C
C--- IFUNC = 2, Return physical min and max for plot device, and range
C of color indices.---------------------------------------
C
20 CONTINUE
RBUF(1) = 0
RBUF(2) = XSIZE(MODE)
RBUF(3) = 0
RBUF(4) = YSIZE(MODE)
RBUF(5) = 0
RBUF(6) = MAXCI(MODE)
NBUF = 6
RETURN
C
C--- IFUNC = 3, Return device resolution. ------------------------------
C
30 CONTINUE
RBUF(1) = XRESLN(MODE)
RBUF(2) = YRESLN(MODE)
RBUF(3) = 1
NBUF = 3
RETURN
C
C--- IFUNC = 4, Return misc device info. -------------------------------
C (This device is Interactive, Cursor, No dashed lines, No areafill,
C No thick lines, No markers; some varieties have rectangle fill)
C
40 CONTINUE
CHR = 'ICNNNNNNNN'
IF (MODE.EQ.2 .OR. MODE.EQ.7 .OR. MODE.EQ.8) CHR(6:6) = 'R'
IF (MODE.EQ.10) THEN
C -- VMAC: rect. fill and wait before closing graph window
CHR(6:6) = 'R'
CHR(8:8) = 'V'
ENDIF
LCHR = 10
RETURN
C
C--- IFUNC = 5, Return default file name. ------------------------------
C
50 CONTINUE
CALL GRTRML(CHR,LCHR)
RETURN
C
C--- IFUNC = 6, Return default physical size of plot. ------------------
C
60 CONTINUE
RBUF(1) = 0
RBUF(2) = XSIZE(MODE)
RBUF(3) = 0
RBUF(4) = YSIZE(MODE)
NBUF = 4
RETURN
C
C--- IFUNC = 7, Return misc defaults. ----------------------------------
C
70 CONTINUE
RBUF(1) = 2.0
NBUF = 1
RETURN
C
C--- IFUNC = 8, Select plot. -------------------------------------------
C
80 CONTINUE
C -- do nothing
RETURN
C
C--- IFUNC = 9, Open workstation. --------------------------------------
C
90 CONTINUE
C -- check for concurrent access
IF (STATE.EQ.1) THEN
CALL GRWARN('a PGPLOT Tektronix device is already open')
RBUF(1) = 0
RBUF(2) = 0
RETURN
END IF
APPEND = RBUF(3) .NE. 0.0
RBUF(1) = 0.0
NBUF = 2
ICHAN = GROTER(CHR, LCHR)
IF (ICHAN .LT. 0) THEN
TEXT = 'Cannot open output device for plot type '//
: DEVICE(MODE)
CALL GRWARN(TEXT)
RBUF(2) = 0.0
RETURN
ELSE
STATE = 1
RBUF(2) = 1.0
END IF
LASTI = -1
LASTJ = -1
ICI = 1
NPAGE = 0
LBUF = 0
IF (.NOT.APPEND) THEN
IF ( MODE.EQ.4 ) THEN
C -- load gterm default color table.
DO 91 I=0,15
CTMP(1:6) = CHAR(GS)//CHAR(ESC)//'TG14'
LTMP = 6
CALL GRTT05(I, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- red
CALL GRTT05(IRGB(1,I), CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- green
CALL GRTT05(IRGB(2,I), CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- blue
CALL GRTT05(IRGB(3,I), CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
CTMP(LTMP+1:LTMP+1) = CHAR(US)
LTMP = LTMP + 1
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
91 CONTINUE
CALL GRTT02(ICHAN, MODE, CHAR(CAN), 1, CBUF, LBUF)
ELSE IF (MODE.EQ.10) THEN
C -- VMAC: put into Tek 4105 mode
CTMP(1:5)=CHAR(ESC)//'%!1'//CHAR(GS)
CALL GRTT02(ICHAN, MODE, CTMP, 5, CBUF, LBUF)
SEFCOL = .TRUE.
C -- set default color representation
DO 92,I=0,15
CALL GRXHLS(IRGB(1,I)/255.,IRGB(2,I)/255.,IRGB(3,I)/255.
: ,HUE,LIG,SAT)
CALL GRTT06(I, NINT(HUE), NINT(LIG*100), NINT(SAT*100)
: , CTMP, LTMP)
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
92 CONTINUE
END IF
END IF
RETURN
C
C--- IFUNC=10, Close workstation. --------------------------------------
C
100 CONTINUE
IF ( MODE.EQ.6 ) THEN
C -- For zstem switch back to alpha mode at the last possible
C moment.
LTMP = 1
CALL GRWTER(ICHAN, CHAR(CAN), LTMP)
ELSE IF ( MODE.EQ.7 ) THEN
C -- For v603 switch back to alpha mode at the last possible
C moment.
CTMP(1:7) = CHAR(CAN)//CHAR(ESC)//CHAR(91)//CHAR(63)//
: CHAR(51)//CHAR(56)//CHAR(108)
LTMP=7
CALL GRWTER(ICHAN, CTMP, LTMP)
ELSE IF (MODE.EQ.10) THEN
C -- VMAC: put into VT100 Mode without window resize
CTMP(1:5)=CHAR(GS)//CHAR(ESC)//'%!7'
LTMP=5
CALL GRWTER(ICHAN, CTMP, LTMP)
END IF
CALL GRCTER(ICHAN)
STATE = 0
RETURN
C
C--- IFUNC=11, Begin picture. ------------------------------------------
C
110 CONTINUE
NPAGE = NPAGE+1
LASTI = -1
IF (.NOT.APPEND) THEN
IF (MODE.EQ.5 .OR. MODE.EQ.6 .OR. MODE. EQ.8) THEN
C -- xterm, zstem, krm3: select Tek mode, erase screen
CTMP(1:1) = CHAR(ESC)
CTMP(2:2) = CHAR(12)
CALL GRTT02(ICHAN, MODE, CTMP, 2, CBUF, LBUF)
ELSE IF (MODE.EQ.7) THEN
C -- V603: select Tek mode
CTMP(1:1) = CHAR(GS)
CTMP(2:2) = CHAR(ESC)
CTMP(3:3) = CHAR(12)
CALL GRTT02(ICHAN, MODE, CTMP, 3, CBUF, LBUF)
ELSE
C -- erase graphics screen
CTMP(1:1) = CHAR(GS)
CTMP(2:2) = CHAR(ESC)
CTMP(3:3) = CHAR(12)
CTMP(4:4) = CHAR(CAN)
CALL GRTT02(ICHAN, MODE, CTMP, 4, CBUF, LBUF)
END IF
ELSE IF (MODE.EQ.8) THEN
C -- krm3: enter graph mode without deleting screen
CTMP(1:1) = CHAR(ESC)
CTMP(2:2) = CHAR(91)
CTMP(3:3) = CHAR(63)
CTMP(4:4) = CHAR(51)
CTMP(5:5) = CHAR(56)
CTMP(6:6) = CHAR(104)
CALL GRTT02(ICHAN, MODE, CTMP, 6, CBUF, LBUF)
ELSE IF (MODE.EQ.9) THEN
C -- TK4100: put device in graphics mode, erase screen
CTMP(1:1) = CHAR(ESC)
CTMP(2:4) = '%!0'
CTMP(5:5) = CHAR(ESC)
CTMP(6:6) = CHAR(12)
CALL GRTT02(ICHAN, MODE, CTMP, 6, CBUF, LBUF)
CTMP(1:1) = CHAR(ESC)
CTMP(2:6) = 'RU1;4'
CALL GRTT02(ICHAN, MODE, CTMP, 6, CBUF, LBUF)
C -- set default color representation
DO 111 I=0,15
CTMP(1:5) = CHAR(ESC)//'TG14'
LTMP = 5
CALL GRTT05(I, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- red
CALL GRTT05(TKRGB(1,I), CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- green
CALL GRTT05(TKRGB(2,I), CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- blue
CALL GRTT05(TKRGB(3,I), CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
111 CONTINUE
C -- set color index 1
CTMP(1:1) = CHAR(ESC)
CTMP(2:4) = 'ML1'
CALL GRTT02(ICHAN, MODE, CTMP, 4, CBUF, LBUF)
END IF
RETURN
C
C--- IFUNC=12, Draw line. ----------------------------------------------
C (omitted for color 0 on devices without selective erase)
C
120 CONTINUE
IF (ICI.EQ.0 .AND. (MODE.EQ.1 .OR. MODE.EQ.5)) RETURN
IF ( I4014(MODE).EQ.0 ) THEN
I0 = NINT(RBUF(1))
J0 = NINT(RBUF(2))
I1 = NINT(RBUF(3))
J1 = NINT(RBUF(4))
ELSE
I0 = NINT(4.*RBUF(1))
J0 = NINT(4.*RBUF(2))
I1 = NINT(4.*RBUF(3))
J1 = NINT(4.*RBUF(4))
END IF
CALL GRTT01(ICHAN, MODE, I4014(MODE), LASTI, LASTJ,
: I0, J0, I1, J1, CBUF, LBUF)
RETURN
C
C--- IFUNC=13, Draw dot. -----------------------------------------------
C (omitted for color 0 on devices without selective erase)
C
130 CONTINUE
IF (ICI.EQ.0 .AND. (MODE.EQ.1 .OR. MODE.EQ.5)) RETURN
IF ( I4014(MODE).EQ.0 ) THEN
I0 = NINT(RBUF(1))
J0 = NINT(RBUF(2))
ELSE
I0 = NINT(4.*RBUF(1))
J0 = NINT(4.*RBUF(2))
END IF
CALL GRTT01(ICHAN, MODE, I4014(MODE), LASTI, LASTJ,
: I0, J0, I0, J0, CBUF, LBUF)
RETURN
C
C--- IFUNC=14, End picture. --------------------------------------------
C
140 CONTINUE
IF (MODE.EQ.7) THEN
C -- V603: enter alphanumerics and unset graphics
CTMP(1:7) = CHAR(CAN)//CHAR(ESC)//CHAR(91)//CHAR(63)//
: CHAR(51)//CHAR(56)//CHAR(108)
LTMP=7
CALL GRWTER(ICHAN, CTMP, LTMP)
ELSE IF (MODE.EQ.8) THEN
C -- krm3: enter alphanumerics and unset graphics
CTMP(1:6) = CHAR(ESC)//CHAR(91)//CHAR(63)//
: CHAR(51)//CHAR(56)//CHAR(108)
LTMP=6
CALL GRWTER(ICHAN, CTMP, LTMP)
ELSE IF (MODE.EQ.9 .OR. MODE.EQ.10) THEN
C -- TK4100, VMAC: return to text mode
CTMP(1:1) = CHAR(ESC)
CTMP(2:4) = '%!1'
LTMP=4
CALL GRWTER(ICHAN, CTMP, LTMP)
END IF
RETURN
C
C--- IFUNC=15, Select color index. -------------------------------------
C
150 CONTINUE
ICI = RBUF(1)
IF (ICI.LT.0 .OR. ICI.GT.MAXCI(MODE)) THEN
ICI = 1
RBUF(1) = ICI
END IF
LASTI = -1
IF (MODE.EQ.2) THEN
C -- GraphOn
CTMP(1:1) = CHAR(GS)
CTMP(2:2) = CHAR(ESC)
CTMP(3:3) = CHAR(1)
IF (ICI.EQ.0) CTMP(3:3) = CHAR(16)
CALL GRTT02(ICHAN, MODE, CTMP, 3, CBUF, LBUF)
ELSE IF (MODE.EQ.3 .OR. MODE.EQ.7) THEN
C -- Retrographics, V603
CTMP(1:1) = CHAR(GS)
CTMP(2:2) = CHAR(ESC)
CTMP(3:3) = CHAR(47)
CTMP(4:4) = CHAR(49-ICI)
CTMP(5:5) = CHAR(100)
CALL GRTT02(ICHAN, MODE, CTMP, 5, CBUF, LBUF)
ELSE IF ( MODE.EQ.4 .OR. MODE.EQ.6 .OR. MODE.EQ.10) THEN
C -- gterm and zstem, VMAC
CTMP(1:4) = CHAR(GS)//CHAR(ESC)//'ML'
CALL GRTT02(ICHAN, MODE, CTMP, 4, CBUF, LBUF)
CALL GRTT05(ICI, CTMP, LTMP)
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
SEFCOL=.TRUE.
ELSE IF (MODE.EQ.9) THEN
C -- TK4100
CTMP(1:3) = CHAR(ESC)//'ML'
CALL GRTT02(ICHAN, MODE, CTMP, 3, CBUF, LBUF)
CALL GRTT05(ICI, CTMP, LTMP)
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
ELSE IF( MODE.EQ.8) THEN
C -- krm3: all attributes off
CTMP(1:1) = CHAR(27)
CTMP(2:2) = CHAR(91)
CTMP(3:3) = CHAR(48)
CTMP(4:4) = CHAR(59)
C
C Load color definitions (8-14 are bold versions of 1-7, so are not the
C standard PGPLOT ones)
C
IF ( ICI.EQ.0 ) I=0
IF ( ICI.EQ.1 .OR. ICI.EQ.8) I=7
IF ( ICI.EQ.2 .OR. ICI.EQ.9) I=1
IF ( ICI.EQ.3 .OR. ICI.EQ.10) I=2
IF ( ICI.EQ.4 .OR. ICI.EQ.11) I=4
IF ( ICI.EQ.5 .OR. ICI.EQ.12) I=6
IF ( ICI.EQ.6 .OR. ICI.EQ.13) I=5
IF ( ICI.EQ.7 .OR. ICI.EQ.14) I=3
CTMP(5:5) = CHAR(51)
CTMP(6:6) = CHAR(48+I)
IF (ICI.GT.7) THEN
CTMP(7:7) = CHAR(59)
CTMP(8:8) = CHAR(49)
CTMP(9:9) = CHAR(109)
CALL GRTT02(ICHAN, MODE, CTMP, 9, CBUF, LBUF)
ELSE
CTMP(7:7) = CHAR(109)
CALL GRTT02(ICHAN, MODE, CTMP, 7, CBUF, LBUF)
END IF
END IF
RETURN
C
C--- IFUNC=16, Flush buffer. -------------------------------------------
C
160 CONTINUE
IF (MODE.EQ.1 .OR. MODE.GT.5) THEN
C -- tek4010, zstem, v603, krm3, or tk4100
CTMP(1:6) = CHAR(GS)//CHAR(55)//CHAR(127)//CHAR(32)//
: CHAR(64)//CHAR(US)
CALL GRTT02(ICHAN, MODE, CTMP, 6, CBUF, LBUF)
ELSE IF (MODE.EQ.5) THEN
C -- xterm
CTMP(1:3) = CHAR(US)//CHAR(ESC)//CHAR(3)
CALL GRTT02(ICHAN, MODE, CTMP, 3, CBUF, LBUF)
ELSE
CTMP(1:8) = CHAR(GS)//CHAR(55)//CHAR(127)//CHAR(32)//
: CHAR(64)//CHAR(3)//CHAR(CAN)//CHAR(US)
CALL GRTT02(ICHAN, MODE, CTMP, 8, CBUF, LBUF)
END IF
CALL GRWTER(ICHAN, CBUF, LBUF)
LASTI = -1
RETURN
C
C--- IFUNC=17, Read cursor. --------------------------------------------
C
170 CONTINUE
C -- flush buffer
CALL GRWTER(ICHAN, CBUF, LBUF)
LASTI = -1
IF ( MODE.EQ.5 .OR. MODE.EQ.6 ) THEN
C -- xterm and zstem make sure terminal is in Tektronix mode.
LTMP = 6
CALL GRWTER(ICHAN, CHAR(ESC)//'[?38h', LTMP)
END IF
C -- initial cursor position
I0 = NINT(RBUF(1))
J0 = NINT(RBUF(2))
C -- read cursor
CALL GRTT03(ICHAN, I0, J0, ICH, IER)
C -- on XTERM, map mouse button clicks onto A, D, X.
IF (MODE.EQ.5) THEN
IF (ICH.EQ.236) THEN
ICH = ICHAR('a')
ELSE IF (ICH.EQ.237) THEN
ICH = ICHAR('d')
ELSE IF (ICH.EQ.242) THEN
ICH = ICHAR('x')
ELSE IF (ICH.EQ.204) THEN
ICH = ICHAR('A')
ELSE IF (ICH.EQ.205) THEN
ICH = ICHAR('D')
ELSE IF (ICH.EQ.210) THEN
ICH = ICHAR('X')
END IF
END IF
C -- return result
IF (IER.EQ.0) THEN
RBUF(1) = I0
RBUF(2) = J0
CHR(1:1) = CHAR(ICH)
ELSE
CHR(1:1) = CHAR(0)
END IF
NBUF = 2
LCHR = 1
RETURN
C
C--- IFUNC=18, Erase alpha screen. -------------------------------------
C
180 CONTINUE
IF (MODE.EQ.2 .OR. MODE.EQ.3) THEN
C -- GraphOn, Retrographics: return to VT100 mode and
C issue VT100 erase-screen command
CTMP(1:8) = CHAR(GS)//CHAR(55)//CHAR(127)//CHAR(32)//
: CHAR(64)//CHAR(3)//CHAR(CAN)//CHAR(US)
CALL GRTT02(ICHAN, MODE, CTMP, 8, CBUF, LBUF)
CTMP(1:7) = CHAR(ESC)//'[2J'//CHAR(ESC)//'[H'
CALL GRTT02(ICHAN, MODE, CTMP, 7, CBUF, LBUF)
LASTI = -1
END IF
RETURN
C
C--- IFUNC=21, Set color representation. -------------------------------
C
210 CONTINUE
IF (MODE.EQ.4) THEN
C -- gterm
I = RBUF(1)
CTMP(1:6) = CHAR(GS)//CHAR(ESC)//'TG14'
LTMP = 6
CALL GRTT05(I, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- red
INTEN = RBUF(2)*255.0
CALL GRTT05(INTEN, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- green
INTEN = RBUF(3)*255.0
CALL GRTT05(INTEN, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- blue
INTEN = RBUF(4)*255.0
CALL GRTT05(INTEN, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C
CTMP(LTMP+1:LTMP+2) = CHAR(US)//CHAR(CAN)
LTMP = LTMP + 2
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
CALL GRWTER(ICHAN, CBUF, LBUF)
LASTI = -1
ELSE IF (MODE.EQ.9) THEN
C -- TK4100
I = RBUF(1)
CTMP(1:5) = CHAR(ESC)//'TG14'
LTMP = 5
CALL GRTT05(I, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- red
INTEN = RBUF(2)*100.0
CALL GRTT05(INTEN, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- green
INTEN = RBUF(3)*100.0
CALL GRTT05(INTEN, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
C -- blue
INTEN = RBUF(4)*100.0
CALL GRTT05(INTEN, CADD, LADD)
CTMP(LTMP+1:LTMP+LADD) = CADD(:LADD)
LTMP = LTMP + LADD
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
CALL GRWTER(ICHAN, CBUF, LBUF)
LASTI = -1
ELSE IF (MODE.EQ.10) THEN
C -- VersaTerm
CTMP(1:1)=CHAR(GS)
CALL GRTT02(ICHAN, MODE, CTMP, 1, CBUF, LBUF)
CALL GRXHLS(RBUF(2), RBUF(3), RBUF(4), HUE, LIG, SAT)
CALL GRTT06(NINT(RBUF(1))
: , NINT(HUE), NINT(LIG*100), NINT(SAT*100), CTMP, LTMP)
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
CALL GRWTER(ICHAN, CBUF, LBUF)
LASTI = -1
END IF
RETURN
C
C--- IFUNC=24, Rectangle fill. -----------------------------------------
C
240 CONTINUE
IF ( I4014(MODE).EQ.0 ) THEN
I0 = NINT(RBUF(1))
J0 = NINT(RBUF(2))
I1 = NINT(RBUF(3))
J1 = NINT(RBUF(4))
ELSE
I0 = NINT(4.*RBUF(1))
J0 = NINT(4.*RBUF(2))
I1 = NINT(4.*RBUF(3))
J1 = NINT(4.*RBUF(4))
END IF
IF (MODE.EQ.2) THEN
C -- GraphOn
C -- enter rectangle mode
CALL GRTT02(ICHAN, MODE, CHAR(GS)//CHAR(ESC)//CHAR(2), 3,
: CBUF, LBUF)
C -- draw rectangle
CALL GRTT01(ICHAN, MODE, I4014(MODE), LASTI, LASTJ,
: I0, J0, I1, J1, CBUF, LBUF)
C -- exit rectangle mode
CALL GRTT02(ICHAN, MODE, CHAR(ESC)//CHAR(3), 2, CBUF, LBUF)
ELSE IF (MODE.EQ.7 .OR. MODE.EQ.8) THEN
C -- v603, krm3: needs bottom left corner and rectangle
C dimensions
IBUF(1)=I0+1
IBUF(2)=J0+1
IBUF(3)=I1+1
IBUF(4)=J1+1
DO 241 I=1,4
IF (IBUF(I) .LT. 1) IBUF(I)=1
IF (IBUF(I) .GT. 1056) IBUF(I)=1056
241 CONTINUE
IBUF(3)=IBUF(3)-IBUF(1)
IBUF(4)=IBUF(4)-IBUF(2)
ITOT=0
DO 244 I=1,4
WRITE (CSCR(I)(1:4), '(I4)') IBUF(I)
IBUF(I)=1
DO 242 J=1,4
IF (CSCR(I)(J:J) .NE. ' ') THEN
GOTO 243
END IF
IBUF(I)=IBUF(I)+1
242 CONTINUE
243 CONTINUE
ITOT=ITOT+5-IBUF(I)
244 CONTINUE
CTMP(1:8+ITOT)=
: CHAR(ESC)//CHAR(47)//CSCR(1)(IBUF(1):4)//CHAR(59)//
: CSCR(2)(IBUF(2):4)//CHAR(59)//CSCR(3)(IBUF(3):4)//
: CHAR(59)//CSCR(4)(IBUF(4):4)//CHAR(59)//CHAR(49)//
: CHAR(121)
CALL GRTT02(ICHAN, MODE, CTMP, 8+ITOT, CBUF, LBUF)
ELSE IF (MODE.EQ.10) THEN
C -- VMAC: use polygon fill commands
IF (SEFCOL) THEN
C set fill color
SEFCOL=.FALSE.
CTMP(1:3) = CHAR(ESC)//'MP'
CALL GRTT02(ICHAN, MODE, CTMP, 3, CBUF, LBUF)
CALL GRTT05(-ICI, CTMP, LTMP)
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
ENDIF
C send "start polygon fill"
CTMP(1:3) = CHAR(ESC)//'LP'
LTMP=3
C make lasti,lastj different from i0,j0 in each bit
LASTI=4095-I0
LASTJ=4095-J0
C send first coordinate
CALL GRTT04(I4014(MODE), LASTI, LASTJ, I0, J0, CTMP, LTMP)
LASTI=I0
LASTJ=J0
C '0' means: boundary has the same the color as fill area
CTMP(LTMP+1:LTMP+1)='0'
LTMP=LTMP+1
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
C further edges:
CALL GRTT01(ICHAN, MODE, I4014(MODE), LASTI, LASTJ,
: I0, J1, I1, J1, CBUF, LBUF)
CALL GRTT01(ICHAN, MODE, I4014(MODE), LASTI, LASTJ,
: I1, J1, I1, J0, CBUF, LBUF)
C send "end polygon fill"
CTMP(1:3)=CHAR(ESC)//'LE'
CALL GRTT02(ICHAN, MODE, CTMP, 3, CBUF, LBUF)
END IF
RETURN
C-----------------------------------------------------------------------
END
C*GRTT01 -- PGPLOT Tektronix driver, draw line segment
C+
SUBROUTINE GRTT01(ICHAN, MODE, I4014, LASTI, LASTJ, I0, J0,
: I1, J1, CBUF, LBUF)
INTEGER ICHAN, MODE, I4014, LASTI, LASTJ, I0, J0, I1, J1, LBUF
CHARACTER CBUF*(*)
C
C This routine draws a line from (I0, J0) to (I1, J1). If LASTI>=0
C assume that the cursor is at the position is at (LASTI, LASTJ).
C For this case, a minimum length move is done from (LASTI, LASTJ) to
C the nearer point. Of course, if (LASTI, LASTJ) and the nearer point
C are the same, then no bytes of positioning data are generated and
C sent to the terminal. If LASTI<0 then a move is done with the
C coordinate fully specified. In both cases the line end point
C is specified using the fewest number of bytes allowed by the protocol.
C Upon return, LASTI,LASTJ will contain the current cursor position.
C If I4014=0 then 10 bit (4010) coordinates are generated, for I4014=1,
C full 12 bit Tektronix (4014 and higher) coordinates are generated.
C Note: The 'delete' character (127) can occur in LOY or EXTRA byte;
C it can be replaced by escape-? if desired.
C
C Arguments:
C ICHAN (in) : passed to GRTT02 if called.
C MODE (in) : passed to GRTT02 if called.
C I4014 (in) : =0 generate 4010 coords, =1 generate 4014.
C LASTI,LASTJ (in/out) : current position
C I0, J0 (in/out) : device coordinates of the starting point.
C I1, J1 (in/out) : device coordinates of the end point.
C CBUF (in/out) : buffer for instruction.
C LBUF (in/out) : Number of valid characters in CBUF.
C
C 1993-Feb-02 - Created from GRZS01 - [AFT]
C-----------------------------------------------------------------------
INTEGER GS
PARAMETER (GS = 29)
INTEGER MASKLX, MASKHX
PARAMETER (MASKLX = 64, MASKHX = 32)
INTEGER MASKLY, MASKHY
PARAMETER (MASKLY = 96, MASKHY = 32)
INTEGER MASKEX
PARAMETER (MASKEX = 96)
C
CHARACTER CTMP*12
INTEGER ID0, ID1, IFLUSH, ITMP
INTEGER IEX, ILOX, IHIX, ILOY, IHIY, LTMP
C
C If it is possible for this routine to generate enough data to fill
C the buffer, and thus cause it to be flushed to the terminal, then we
C force the write to take place now. This will ensure that terminal
C is in the correct state for the following commands.
IF ( LBUF+11.GE.LEN(CBUF) ) THEN
CALL GRWTER(ICHAN, CBUF, LBUF)
IFLUSH = 1
ELSE
IFLUSH = 0
END IF
C
LTMP = 0
IF(LASTI.LT.0) THEN
C Last position is invalid, therefore do a dark vector move with all
C coordinates specified.
LTMP=LTMP+1
CTMP(LTMP:LTMP)=CHAR(GS)
IF ( I4014.EQ.0 ) THEN
IHIY = J0/32
ILOY = MOD(J0, 32)
IHIX = I0/32
ILOX = MOD(I0, 32)
CTMP(LTMP+1:LTMP+4) =
: CHAR( MASKHY + IHIY )//
: CHAR( MASKLY + ILOY )//
: CHAR( MASKHX + IHIX )//
: CHAR( MASKLX + ILOX )
LTMP = LTMP + 4
ELSE
IHIY = J0/128
ILOY = MOD(J0/4, 32)
IHIX = I0/128
ILOX = MOD(I0/4, 32)
IEX = 4*MOD(J0, 4) + MOD(I0, 4)
CTMP(LTMP+1:LTMP+5) =
: CHAR( MASKHY + IHIY )//
: CHAR( MASKEX + IEX )//
: CHAR( MASKLY + ILOY )//
: CHAR( MASKHX + IHIX )//
: CHAR( MASKLX + ILOX )
LTMP = LTMP + 5
END IF
ELSE
C Last position is valid, move pen to nearest end point of line.
ID0=ABS(LASTI-I0)+ABS(LASTJ-J0)
ID1=ABS(LASTI-I1)+ABS(LASTJ-J1)
IF(ID1.LT.ID0) THEN
C Swap coordinates to minimize 'pen motion'. For optimized coordinates
C this can reduce the amount of I/O to the the terminal.
ITMP=I0
I0=I1
I1=ITMP
ITMP=J0
J0=J1
J1=ITMP
ITMP=ID0
ID0=ID1
ID1=ITMP
END IF
IF(ID0.NE.0 .OR. ID1.NE.0) THEN
C Position has changed, so do a move operation.
LTMP=LTMP+1
CTMP(LTMP:LTMP)=CHAR(GS)
CALL GRTT04(I4014,LASTI,LASTJ,I0,J0,CTMP,LTMP)
ELSE
IF(IFLUSH.NE.0) THEN
C The position is valid, but the buffer was flushed, so terminal may
C no longer be in graph mode. Therefore, send GS and followed by a
C zero length dark move (i.e., just resend LOX coordinate).
IF ( I4014.EQ.0 ) THEN
ILOX = MOD(I0, 32)
ELSE
ILOX = MOD(I0/4, 32)
END IF
CTMP(LTMP+1:LTMP+2)=CHAR(GS)//CHAR(MASKLX+ILOX)
LTMP=LTMP+2
END IF
END IF
END IF
C
C Terminal is now in graph mode, and the `pen' has been positioned.
C Do an optimized draw.
CALL GRTT04(I4014,I0,J0,I1,J1,CTMP,LTMP)
CALL GRTT02(ICHAN, MODE, CTMP, LTMP, CBUF, LBUF)
C
C Remember current position.
LASTI=I1
LASTJ=J1
RETURN
C
END
C*GRTT02 -- PGPLOT Tektronix driver, transfer data to buffer
C+
SUBROUTINE GRTT02 (ICHAN, MODE, CADD, LADD, CBUF, LBUF)
INTEGER ICHAN, MODE, LADD, LBUF
CHARACTER CADD*(*), CBUF*(*)
C
C Arguments:
C ICHAN (input) : channel number for output (when buffer is full).
C MODE (input) : emulation type.
C CADD (input) : text to add to buffer.
C LADD (input) : number of characters to transfer.
C CBUF (input) : output buffer.
C LBUF (in/out) : number of valid characters in CBUF.
C
C Subroutines called:
C GRWTER
C-----------------------------------------------------------------------
IF (LBUF+LADD.GE.LEN(CBUF) ) THEN
CALL GRWTER(ICHAN, CBUF, LBUF)
END IF
C
IF ( LADD.GT.0 ) THEN
IF ( LBUF.EQ.0 ) THEN
IF ( MODE.EQ.5 .OR. MODE.EQ.6 ) THEN
CBUF(1:6) = CHAR(27)//'[?38h'
LBUF = 6
END IF
END IF
CBUF(LBUF+1:LBUF+LADD) = CADD(1:LADD)
LBUF = LBUF + LADD
END IF
C-----------------------------------------------------------------------
END
C*GRTT03 -- PGPLOT Tektronix driver, cursor routine
C+
SUBROUTINE GRTT03 (ICHAN, IX, IY, IC, IER)
INTEGER ICHAN, IX, IY, IC, IER
C
C Arguments:
C ICHAN (input) : channel for output to device.
C IX, IY (in/out) : initial/final coordinates of cursor (device
C coordinates).
C IC (output) : character code.
C IER (output) : error status (0 is OK).
C
C-----------------------------------------------------------------------
CHARACTER CBUF*8, CPROM*10
INTEGER I1, I2, LBUF
C
C Position cursor (by drawing a dark vector).
C
CPROM(1:1) = CHAR(29)
CPROM(2:2) = CHAR(32+(IY/32))
CPROM(3:3) = CHAR(96+MOD(IY,32))
CPROM(4:4) = CHAR(32+(IX/32))
CPROM(5:5) = CHAR(64+MOD(IX,32))
CPROM(6:6) = CHAR(27)
CPROM(7:7) = CHAR(47)
CPROM(8:8) = CHAR(102)
CPROM(9:9) = CHAR(27)
CPROM(10:10) = CHAR(26)
C
C Do a read with prompt.
C
LBUF = 5
CALL GRPTER(ICHAN, CPROM, 10, CBUF, LBUF)
C
C Must read at least 5 characters.
C
IF( LBUF.LT.5) THEN
IER = 1
ELSE
C
C Decode coordinates.
C
IC = ICHAR( CBUF(1:1) )
I1 = MOD( ICHAR(CBUF(2:2)), 32 )
I2 = MOD( ICHAR(CBUF(3:3)), 32 )
IX = I1*32 + I2
I1 = MOD( ICHAR(CBUF(4:4)), 32 )
I2 = MOD( ICHAR(CBUF(5:5)), 32 )
IY = I1*32 + I2
IER = 0
END IF
RETURN
C-----------------------------------------------------------------------
END
C*GRTT04 -- PGPLOT Tektronix driver, encode coordinate pair, optimize
C+
SUBROUTINE GRTT04(I4014, LASTI, LASTJ, I0, J0, CTMP, LTMP)
INTEGER I4014, LASTI, LASTJ, I0, J0, LTMP
CHARACTER CTMP*(*)
C
C Assume cursor is at position LASTI, LASTJ and that the light or
C dark vector condition has been correctly set. Add up to 5 characters
C to CTMP to draw a vector to I0, J0. The minimum number of characters
C are encoded to obtain the motion.
C-----------------------------------------------------------------------
INTEGER MASKLX, MASKHX
PARAMETER (MASKLX = 64, MASKHX = 32)
INTEGER MASKLY, MASKHY
PARAMETER (MASKLY = 96, MASKHY = 32)
INTEGER MASKEX
PARAMETER (MASKEX=96)
C
INTEGER IEX, ILOX, IHIX, ILOY, IHIY
INTEGER LEX, LLOX, LHIX, LLOY, LHIY
C
IF ( I4014.EQ.0 ) THEN
LHIY = LASTJ/32
LLOY = MOD(LASTJ, 32)
LHIX = LASTI/32
LLOX = MOD(LASTI, 32)
LEX = 0
IHIY = J0/32
ILOY = MOD(J0, 32)
IHIX = I0/32
ILOX = MOD(I0, 32)
IEX = 0
ELSE
LHIY = LASTJ/128
LLOY = MOD(LASTJ/4, 32)
LHIX = LASTI/128
LLOX = MOD(LASTI/4, 32)
LEX = 4*MOD(LASTJ, 4) + MOD(LASTI, 4)
IHIY = J0/128
ILOY = MOD(J0/4, 32)
IHIX = I0/128
ILOX = MOD(I0/4, 32)
IEX = 4*MOD(J0, 4) + MOD(I0, 4)
END IF
C
IF(IHIY.NE.LHIY) THEN
LTMP=LTMP+1
CTMP(LTMP:LTMP) = CHAR(32+IHIY)
END IF
C Note, for 4010 mode, IEX=LEX (by definition)
IF(IEX.NE.LEX) THEN
LTMP=LTMP+1
CTMP(LTMP:LTMP) = CHAR(96+IEX)
END IF
IF(IEX.NE.LEX .OR. ILOY.NE.LLOY .OR. IHIX.NE.LHIX) THEN
LTMP=LTMP+1
CTMP(LTMP:LTMP) = CHAR(96+ILOY)
END IF
IF(IHIX.NE.LHIX) THEN
LTMP=LTMP+1
CTMP(LTMP:LTMP) = CHAR(32+IHIX)
END IF
LTMP=LTMP+1
CTMP(LTMP:LTMP) = CHAR(64+ILOX)
RETURN
END
C*GRTT05 -- PGPLOT Tektronix 4100 driver, encode integer
C+
SUBROUTINE GRTT05(I, C, NC)
INTEGER I
CHARACTER*(*) C
INTEGER NC
C
C Encode integer in host syntax. Input integer I; output encoded string
C C, containing NC characters (1, 2, or 3). This version encodes
C integers up to 1023, which fit in two characters.
C-----------------------------------------------------------------------
INTEGER J
C
J = IABS(I)
IF (J.LT.16) THEN
IF (I.LT.0) THEN
C(1:1) = CHAR(J+32)
ELSE
C(1:1) = CHAR(J+48)
END IF
NC = 1
ELSE
C(1:1) = CHAR(J/16+64)
IF (I.LT.0) THEN
C(2:2) = CHAR(MOD(J,16)+32)
ELSE
C(2:2) = CHAR(MOD(J,16)+48)
END IF
NC = 2
END IF
C
END
C*GRTT06 -- PGPLOT Tektronix 4100 driver, encode color definition
C+
SUBROUTINE GRTT06(IDX, I1, I2, I3, C, NC)
INTEGER ESC, GS, US
PARAMETER (ESC=27, GS=29, US=31)
INTEGER IDX, I1, I2, I3
CHARACTER*(*) C
INTEGER NC
C
C Encode color definition, Color index IDX, I1,I2,I3 are the 3 integer
C color components (definiton is device-dependent).
C output encoded string containing NC characters (max 20).
C-----------------------------------------------------------------------
INTEGER L
C
C(1:5) = CHAR(ESC)//'TG14'
NC=5
CALL GRTT05(IDX, C(NC+1:NC+3), L)
NC=NC+L
CALL GRTT05(I1, C(NC+1:NC+3), L)
NC=NC+L
CALL GRTT05(I2, C(NC+1:NC+3), L)
NC=NC+L
CALL GRTT05(I3, C(NC+1:NC+3), L)
NC=NC+L
END
|
