summaryrefslogtreecommitdiff
path: root/macros/generic/lecturer/doc/LecturerDemo-VisualDoc.tex
blob: fffc626df7805830f583556c012813b7596516b9 (plain)
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
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
% This is The Visual Doc for the Lecturer package.
% The EXHAUSTIVE documentation is lecturer-doc.pdf.
%
% You can recompile if you want, but you need LuaTeX 0.6
% + piTeX (available on CTAN, put it on top of plain TeX)
% + non-free fonts. So you'd better just copy and paste here
% and there.
% 
% Author: Paul Isambert.
% Date: July 2010.

\input pitex
\input lecturer


%
% That's piTeX, nothing to do with
% Lecturer, except the syntax (how strange).
%
\setparameter font:
  command = \mainfont
  name    = ChaparralPro-
  size    = 10pt
  roman   = Regular
  bold    = Bold
  italic  = Italic

\setparameter font:
  command = \titlefont
  name    = ChaparralPro-
  size    = 1.5cm
  roman   = Regular
  bold    = Bold
  italic  = Italic

\setparameter font:
  command = \codefont
  name    = LTYPE
  size    = 8pt
  type    = ttf
  roman   = {}
  bold    = B
  italic  = O

\setparameter font:
  command = \centaur
  type    = ttf
  name    = Centaur
  roman   = {}

\setcatcodes{_=12}
%
% End of piTeX stuff.
%










\setparameter job:
  title          = "{\it Lecturer:} a Visual Doc"
  pdftitle       = "Lecturer's Visual Doc (alternate title set with pdftitle in the job parameter)"
  author         = "Paul Isambert"
  background     = lightgrey
  menutext       = "Value to the job's submenutext attribute"
  fullscreen     = true
  autofullscreen = true

\newcolor{lightgrey}{grey}{.9}
\newcolor{attribute}{rgb}{.9 0 0}
\newcolor{value}{rgb}{0 .7 0}
\newcolor{instruction}{grey}{.5}
\def\Parameter#1{\bold{#1}}
\def\Attribute#1{\usecolor{attribute}{#1}}
\def\Value#1{\usecolor{value}{#1}}
\def\Instruction#1{\usecolor{instruction}{\ital{#1}}}
\def\com#1{\usecolor{attribute}{\string#1}\antigobblespace}

\setarea{controlbar}
  width      = 3cm
  top        = 1cm
  left       = .3cm
  font       = \mainfont
  foreground = value
  background = lightgrey

\newsymbol\menu[.3cm]{%
  pen .05, color attribute,
  circle ur 1, circle rd .9, circle dl .8, circle lu .7,
  circle ur .6, circle rd .5, circle dl .4, circle lu .3,
  circle ur .2, circle rd .1,
  }


\setparameter slide:
  height     = 16cm
  width      = 19cm
  left       = 3.5cm
  right      = 1cm
  top        = 1cm
  bottom     = 1.5cm
  hpos       = ff
  vpos       = top
  font       = \mainfont
  everyslide = \everyslide

\def\everyslide{%
  \position{controlbar}[0cm,11.5cm]{%
    \firstslide{\codefont\com\firstslide}
    \prevslide{\codefont\com\prevslide}
    \prevstep{\codefont\com\prevstep}
    \nextstep[flash]{\codefont\com\nexstep[flash]}
    \nextslide[push]{\codefont\com\nextslide[push]}
    \lastslide[none]{\codefont\com\lastslide[none]}
    \kern.2cm
    \showbookmarks\menu
    }
  }










%
%
% TITLE SLIDE
%
%

\setarea{title}
  hshift  = 4cm
  hshift* = 1cm
  vshift  = 3cm
  baselineskip = 2cm
  visible = false
  font    = \titlefont
  hpos    = rr

\setarea{showtitle showauthor showdate}
  visible    = step
  height     = 2cm
  frame      = "width=-.3cm, corner=bevel, color=lightgrey"

\setarea{showtitle}
  top     = -2cm
  right   = 2.5cm
  hshift  = 4cm
  hshift* = 1cm
  vshift  = 2cm

\setarea{showauthor}
  hshift  = 6cm
  hshift* = 3cm
  left    = -4cm
  hsize   = 3.7cm
  vshift  = 4cm
  hpos    = rf
  
\setarea{showdate}
  top     = 2cm
  hshift  = 7cm
  hshift* = 4cm
  vshift  = 6cm

\setarea{showall}
  visible    = step 
  height     = \pdfpageheight
  hshift     = 3cm
  left       = 8cm
  hpos       = rf
  background = lightgrey

\newcolor{tblack}{grey}[.9]{0}
\setarea{warning}
  hshift* vshift* = 1cm
  right           = 3cm
  frame           = "width=1cm, corner=round"
  foreground      = white
  background      = tblack
  hpos            = ff
  vpos            = center
  visible         = step
  parskip         = \baselineskip
  




\slide[The Job]

\createbookmark{1.1}{%
  This bookmark has been created just
  to show the menutext attribute above;
  it is also probably the longest bookmark
  ever created. It was done with the createbookmark
  command, of course.
  }

\position{title}{\Title\par\Author\par\Date}

\step[off=all]
  \position{showtitle}
  {That's the title, set in the \Attribute{title} attribute
   of the \Parameter{job} parameter and stored in \com\Title.
   (Since it includes an italic command, an alternative one
   has been declared in \Attribute{pdftitle}, so it appears
   correctly. Look in the document's properties.)}

\step[off=all]
\position{showauthor}
  {That's \Attribute{author}, again in
  the \Parameter{job} parameter, and then in \com\Author;
  \Attribute{pdfauthor} can be used to define
  an alternative version.}

\step[off=all]
\position{showdate}
  {That's the \Attribute{date} attribute, still in \Parameter{job},
   and stored as \com\Date.
   In this document, it hasn't been specified, so it's
   automatically created with the format shown here.}

\step[all]
\position{showall}[,12cm]
  {That's your PDF reader's background, whose color
  you set with \Attribute{background} in the \Parameter{job} parameter
  (how surprising).}

\step
\position{showall}[-10cm,9cm]
  {And these are navigation commands, which take an argument
   and create a clickable hbox with it. Below is
   a symbol drawn with \com\newsymbol, which displays
   the bookmark pop-up menu when clicked because it's
   the argument to \com\showbookmarks\ (note the value
   of \Attribute{submenutext} from the \Parameter{job} parameter).
   This material is positioned here on every slide thanks
   to the \Attribute{everyslide} attribute of the \Parameter{slide} parameter,
   using \com\position.}

\step
\position{warning}{%
  {\titlefont warning}
  
  \kern\baselineskip
  This visual documentation isn't exhaustive, and doesn't
  show all there is to know in \ital{Lecturer}. It's for
  instance a bit light on navigation, because navigation
  commands aren't the more visual things on earth. The
  reference remains \tcode{lecturer-doc.pdf}.
  
  It says nothing either on what a good presentation is,
  which I don't know, except you probably spend more time
  drawing beautiful proportions between elements than
  devising special effects. Unlike this doc. There are
  more succesful example presentations distributed with \ital{Lecturer}.

  Anyway, since we're at it, this super-area has a transparent
  background defined with \com\newcolor, its \Attribute{hshift*}
  and \Attribute{vshift*} are \Value{1cm}, (thus setting \Attribute{hshift}
  and \Attribute{vshift} automatically to the same values), \Attribute{right} is
  \Value{1cm} (hence \Attribute{left} too), \Attribute{parskip}
  is \string\baselineskip, its \Attribute{hpos}
  is \Value{ff} and \Attribute{vpos} is \Value{center}.
  The \Attribute{frame} has a width of \Value{1cm},
  with \Value{round} \Attribute{corner}s. Finally the value to 
  \Attribute{visible} is \Value{step}, that's why the area shows up
  only right now, with its content.
  
  Barring personal macros for verbatim text and font selection,
  all you see here has been done with \ital{Lecturer}. Even the arrows on
  \goto{dimensions}{the slide about dimensions} are areas without
  width, with symbols as heads. (In the previous sentence, the
  phrase \goto{dimensions}{\ital{the slide about dimensions}} sends to the said slide
  when clicked, because it is the argument of a \com\goto command
  referring to the value of the \Attribute{anchor} attribute of
  this slide.)
  
  The fonts used in this documentation are Chaparral, Lucida Typewriter,
  and Centaur for the example text on \goto{dimensions}{the slide about dimensions},
  which Centaur is out of sync with the text displayed but I couldn't resist.
  }
  

\endslide




\let\Doexample\doexample
\let\doexample\doexamplenogroup
\let\exampleskip\relax

 
\def\Mystep[#1]{%
  \mystep[#1]
  {\oldcodefont
    \string\mystep
    \reverse\iffemptystring{#1}
      {{\setcatcodes{\\\~=12}[\usecolor{attribute}{\scantextokens{#1}}]}}
      }%
  \verb
  }




\slide[Self-describing Step, font=\codefont, vpos = center]

\Example
\setstep\mystep
  vskip      = \baselineskip
  everyvstep = $\bullet$~
  font       = \rm

\newimage{universe}[,1cm]{universe.jpg}
\Example/
\let\oldcodefont\codefont
\let\codefont\mainfont
\setcatcodes{|=0,<=1,>=2}

\kern2\baselineskip

\Mystep[] "This step is normal." \Mystep[] "This one too. And horizontal. |gotoA<hyperjump><|oldcodefont\gotoA{hyperjump}{Here.}>"

\Mystep[A] "Let's jump!"
\Mystep[font=\it] "Phew."

\Mystep[visible=true, left=1cm] "I'm already on the screen."

\Mystep[lovely, color=rgb .5 0 .5, on=A, off=B] "Lovely!"

\Mystep[B] "Get off with your color!
<|oldcodefont|showorhide<toggle=lovely><\showorhide{|usecolor<attribute><toggle=lovely>}{Color or not?}>>"

\Mystep[] "<|oldcodefont\createbookmark[bold,1 0 0]{1.1}{Bookmark created on slide \slidetitle}>"
\createbookmark[bold,1 0 0]{1.1}{Bookmark created on slide \slidetitle}

\Mystep[] "And the universe appeared: <|oldcodefont\useimage{|useimage<universe>}>."

\Mystep[] "The universe ain't what it used to be. |gotoB<hyperjump><|oldcodefont\gotoB{hyperjump}{There.}>"

\endslide


\let\codefont\oldcodefont












\def\valuebox#1#2#3#4{\hbox{\showorhide{on = #3, off = #4}{#1}\kern1em\bold{#2}}}
\def\Valuebox#1#2#3#4{\hbox{\bold{#1}\kern1em\showorhide{on = #3, off = #4}{#2}}}


\slide[Areas in Steps, vpos=top, top=.5cm, bottom=8cm, scale=true]

\step[scaled,visible=true]
\position{controlbar}[,]{%
  \hbox{\Attribute{scale}}
  \Valuebox{true}{false}{unscaled}{scaled}
  }

\Example
\showgrid[11cm,8cm]{.5cm}
\showgrid[11cm,8cm]{1cm}[red]

\setarea{one two three}
  visible      = step
  width height = 8cm
  right bottom = 1cm
  topskip      = 0cm
  foreground   = white

\setarea{one two}
  hshift* = 0cm

\setarea{three}
  hshift* vshift = 8cm
  background     = blue
  hpos           = rf

\setarea{one}
  background = red
  vpos       = bottom

\setarea{two}
  background = "cmyk  1 0 1 0"
  vshift     = 8cm 

\step\position{one}{ONE}
\step\position{two}{TWO}
\step\position{three}{THREE}
\Example/

\setarea{unscaled}
  hshift       = 3.5cm
  width height = 8cm
  vshift       = 0cm
  top          = .5cm
  baselineskip = 12pt
  topskip      = 12pt
  vpos         = top
  visible      = step 

\step[unscaled, on=]
\position{unscaled}{{\typesetexample}}
\position{controlbar}[,]{%
  \hbox{\Attribute{scale}}
  \valuebox{true}{false}{scaled}{unscaled}
  }
\step
\position{two}{\tcode{\string\position$\{$two$\}\{$this$\}$}}
\step
\position{two}{\tcode{\string\position$\{$two$\}\{$and this$\}$}}
\step
\position{two}[1cm,5cm]{\tcode{\string\position$\{$two$\}$[1cm,5cm]$\{$and that$\}$}}
\endslide






\hidegrids




\setparameter slide:
  top   = 3cm
  left  = 7cm
  right = 4cm
  vpos  = top
  vsize  = "19\baselineskip"

% An empty value for "on" makes the step not 
% a step at all, but it can be switched on and off.
\setparameter step: on = ""\par

\setarea{text bordermiter borderbevel borderround}
  hshift  = "\pdfhorigin-1cm"
  hshift* = 3cm
  vshift  = 2cm
  vshift* = 4cm
  background = "grey .8"
  visible = step

\setarea{bordermiter borderbevel borderround}
  frame = "width = 1cm, color = grey .9"

\setarea{bordermiter} frame_corner = miter\par
\setarea{borderbevel} frame_corner = bevel\par
\setarea{borderround} frame_corner = round\par

\setarea{authorff authorfr authorrf authorrr}
  vshift* = 1cm
  height  = 2cm
  hshift* = 5cm
  width   = 4cm
  font    = \centaur
  visible = step
  parindent = 0pt

\setarea{authorff} hpos = ff\par
\setarea{authorrf} hpos = rf\par
\setarea{authorrr} hpos = rr\par

\newsymbol\ltriangle[.1cm, padding=0pt]{% The color must be specified, otherwise
  color black, 1 .5, + 0 -1, fill       % the aera's foerground will be used.
  }
\newsymbol\rtriangle[.1cm, padding=0pt]{%
  color black, move 1 0, + -1 .5, + 0 -1, fill
  }
\newsymbol\ttriangle[.1cm, padding=0pt]{%
  color black, move -.5 0, +  1 0, + -.5 1, fill
  }  
\newsymbol\btriangle[.1cm, padding=0pt]{%
  color black, .5 1, + -1 0, fill
  }

\hfuzz=1cm
\def\Hline{%
  \ifnext*{\gobbleoneand{\hLine{\baselineskip}}}{\hLine{-.15cm}}%
  }
\def\hLine#1#2 #3,#4,#5,#6{%
  \setarea{hline#2}
    hshift  = "\pdfhorigin+#3"
    width   = "#4"
    vshift  = "#5"
    height  = 0pt
    topskip = 0pt
    frame   = "width = .15pt, color = black"
    hpos    = ff
    font    = \mainfont
    parindent = 0pt
    foreground = attribute
    visible = step
  \par\position{hline#2}{\quitvmode\ltriangle\hfill\rtriangle}%
  \position{hline#2}[0pt,#1]{\hfill#6\hfill\kern0pt}%
  }

\def\Vline{%
  \ifnext*{\gobbleoneand{\vLine{rf}}}{\vLine{fr}}%
  }
\def\vLine#1#2 #3,#4,#5,#6{%
  \setarea{vline#2}
    vshift  = "#3"
    height  = "#4"
    hshift  = "\pdfhorigin+#5"
    width   = 0pt
    hsize   = 3cm
    topskip = .1cm
    frame   = "width = .15pt, color = black"
    vpos    = center
    font    = \mainfont
    hpos    = #1
    baselineskip = 0pt
    parindent = 0pt
    foreground = attribute
    visible = step
  \par
  \position{vline#2}{\ttriangle\vfill}%
  \position{vline#2}[\iffstring{#1}{rf}{-3cm-}.3em,.1cm]{#6}%
  \position{vline#2}{\vfill\btriangle}%
  }





\slide[Main Dimensions, anchor=dimensions]


\Hline*X1 0cm, \hsize, 11.3cm,                       {hsize}
\Vline X1 3cm, 19\baselineskip, \hsize+.3cm,         {vsize}
\Hline X2 0cm,  1cm,  2.7cm,                         {parindent} 
\Vline*X2 3cm, \baselineskip, -.3cm,                 {topskip}
\Vline*X3 3cm+5\baselineskip, \baselineskip, -.3cm,  {baselineskip}
\Vline X4 3cm+11\baselineskip, \baselineskip, 5.5cm, {parskip}

\step[slidedim, visible=true]
\Hline S1 -4cm, 16cm, \pdfpageheight-.5cm,           {width}
\Vline*S1 0cm, \pdfpageheight, \hsize+3.5cm,         {height}
\Hline S2 -4cm, 4cm, 10cm,                           {left}
\Vline S2 0cm, \pdfvorigin, 7cm,                     {top}
\Hline S3 8cm, 4cm,  5cm,                            {right}
\Vline*S3 11cm, 5cm,  1cm,                           {bottom}

\position{controlbar}[0cm,2.5cm]{%
  \showorhide{ on = areadim bordermiter, off = slidedim}{\Instruction{Show area}}}


\step[maincontrol, visible=true]
\position{controlbar}[1.2cm,3cm]{%
  \hbox{\Attribute{vpos}}
  \showorhide{on = top topcontrol, off = maincontrol center bottom centercontrol bottomcontrol}{top}
  \showorhide{on = center centercontrol, off = maincontrol top bottom topcontrol bottomcontrol}{center}
  \showorhide{on = bottom bottomcontrol, off = maincontrol top center topcontrol centercontrol}{bottom}
  \showorhide{on = top bottom center maincontrol, off = topcontrol centercontrol bottomcontrol}{\Instruction{reset}}
  }

\step[topcontrol]
\position{controlbar}[1.2cm,3cm]{%
  \hbox{\Attribute{vpos}}
  \showorhide{on = top topcontrol, off = maincontrol center bottom centercontrol bottomcontrol}{\bold{top}}
  \showorhide{on = center centercontrol, off = maincontrol top bottom topcontrol bottomcontrol}{center}
  \showorhide{on = bottom bottomcontrol, off = maincontrol top center topcontrol centercontrol}{bottom}
  \showorhide{on = top bottom center maincontrol, off = topcontrol centercontrol bottomcontrol}{\Instruction{reset}}
  }

\step[centercontrol]
\position{controlbar}[1.2cm,3cm]{%
  \hbox{\Attribute{vpos}}
  \showorhide{on = top topcontrol, off = maincontrol center bottom centercontrol bottomcontrol}{top}
  \showorhide{on = center centercontrol, off = maincontrol top bottom topcontrol bottomcontrol}{\bold{center}}
  \showorhide{on = bottom bottomcontrol, off = maincontrol top center topcontrol centercontrol}{bottom}
  \showorhide{on = top bottom center maincontrol, off = topcontrol centercontrol bottomcontrol}{\Instruction{reset}}
  }

\step[bottomcontrol]
\position{controlbar}[1.2cm,3cm]{%
  \hbox{\Attribute{vpos}}
  \showorhide{on = top topcontrol, off = maincontrol center bottom centercontrol bottomcontrol}{top}
  \showorhide{on = center centercontrol, off = maincontrol top bottom topcontrol bottomcontrol}{center}
  \showorhide{on = bottom bottomcontrol, off = maincontrol top center topcontrol centercontrol}{\bold{bottom}}
  \showorhide{on = top bottom center maincontrol, off = topcontrol centercontrol bottomcontrol}{\Instruction{reset}}
  }

\step[areadim]
\position{text}{}
\position{controlbar}[0cm,2.5cm]{%
  \showorhide{ on = slidedim, off = areadim bordermiter borderbevel borderround}{\Instruction{Show slide}}}
\Hline*A0 -4cm, 3cm, 8cm,                           {hshift}
\Vline*A0 0cm, 2cm, 2cm,                            {vshift}
\Hline*A0a 9cm, 3cm, 10cm,                          {\kern4em hshift*}
\Vline*A0a 12cm, 4cm, 2cm,                          {vshift*}
\Hline*A1 -1cm, \hsize+2cm, \pdfpageheight-1.5cm,   {width}
\Vline A1 2cm, 10cm, \hsize+2.5cm,                  {height}
\Hline A2 -1cm, 1cm, 10cm,                          {left}
\Vline A2 2cm, 1cm, 7cm,                            {top}
\Hline A3 8cm, 1cm,  5cm,                           {\kern1em right}
\Vline*A3 11cm, 1cm,  1cm,                          {bottom}
\Hline*A4 -2cm, 1cm, 12cm,                          {frame_width}

\step[bordermiter]
\position{controlbar}[0cm,6cm]{%
  \hbox{\Attribute{frame_corner}}
  \showorhide{on = bordermiter, off = borderbevel borderround}{\bold{miter}}
  \showorhide{on = borderbevel, off = bordermiter borderround}{bevel}
  \showorhide{on = borderround, off = bordermiter borderbevel}{round}
  }
\position{bordermiter}{}


\step[borderbevel]
\position{controlbar}[0cm,6cm]{%
  \hbox{\Attribute{frame_corner}}
  \showorhide{on = bordermiter, off = borderbevel borderround}{miter}
  \showorhide{on = borderbevel, off = bordermiter borderround}{\bold{bevel}}
  \showorhide{on = borderround, off = bordermiter borderbevel}{round}
  }
\position{borderbevel}{}

\step[borderround]
\position{controlbar}[0cm,6cm]{%
  \hbox{\Attribute{frame_corner}}
  \showorhide{on = bordermiter, off = borderbevel borderround}{miter}
  \showorhide{on = borderbevel, off = bordermiter borderround}{bevel}
  \showorhide{on = borderround, off = bordermiter borderbevel}{\bold{round}}
  }
\position{borderround}{}


\step[ff, visible=true]
\position{controlbar}[0cm,3cm]{%
  \hbox{\Attribute{hpos}}
  \showorhide{on = ff, off = fr rf rr}{\bold{ff}}
  \showorhide{on = fr, off = ff rf rr}{fr}
  \showorhide{on = rf, off = ff fr rr}{rf}
  \showorhide{on = rr, off = ff fr rf}{rr}
  }
\position{authorff}{Savinien Cyrano de Bergerac, Etats et Empires de la Lune, c.1650}
\step[fr]
\position{controlbar}[0cm,3cm]{%
  \hbox{\Attribute{hpos}}
  \showorhide{on = ff, off = fr rf rr}{ff}
  \showorhide{on = fr, off = ff rf rr}{\bold{fr}}
  \showorhide{on = rf, off = ff fr rr}{rf}
  \showorhide{on = rr, off = ff fr rf}{rr}
  }
\position{authorfr}{Savinien Cyrano de Bergerac, Etats et Empires de la Lune, c.1650}
\step[rf]
\position{controlbar}[0cm,3cm]{%
  \hbox{\Attribute{hpos}}
  \showorhide{on = ff, off = fr rf rr}{ff}
  \showorhide{on = fr, off = ff rf rr}{fr}
  \showorhide{on = rf, off = ff fr rr}{\bold{rf}}
  \showorhide{on = rr, off = ff fr rf}{rr}
  }
\position{authorrf}{Savinien Cyrano de Bergerac, Etats et Empires de la Lune, c.1650}
\step[rr]
\position{controlbar}[0cm,3cm]{%
  \hbox{\Attribute{hpos}}
  \showorhide{on = ff, off = fr rf rr}{ff}
  \showorhide{on = fr, off = ff rf rr}{fr}
  \showorhide{on = rf, off = ff fr rr}{rf}
  \showorhide{on = rr, off = ff fr rf}{\bold{rr}}
  }
\position{authorrr}{Savinien Cyrano de Bergerac, Etats et Empires de la Lune, c.1650}

\parfillskip=0pt
\step[top, visible=true,font=\centaur]
\quitvmode\kern1cm La lune était en son plein, le ciel était découvert, et neuf heures
du soir étaient sonnées lorsque nous revenions d'une maison proche de Paris,
quatre de mes amis et moi. Les diverses pensées que nous donna la vue
de cette boule de safran nous défrayèrent sur le chemin. Les yeux noyés
dans ce grand astre, tantôt l'un le prenait pour une lucarne du ciel
par où l'on en\-%
%
\step[center, visible=true,font=\centaur]
trevoyait la gloire des bienheureux ; tantôt l'autre protestait
que c'était la platine où Diane dresse les rabats d'Apollon ;
tantôt un autre s'écriait que ce pourrait bien être le soleil lui-même,
qui s'étant au soir dépouillé de ses rayons regardait par un trou
ce qu'on faisait au monde quand il n'y était plus.\hfil\kern0pt

\kern\baselineskip
\step[bottom, visible=true,font=\centaur]
«~Et moi, dis-je, qui souhaite mêler mes enthousiasmes aux vôtres,
je crois sans m'amuser aux imaginations pointues dont vous chatouillez
le temps pour le faire marcher plus vite, que la lune est un monde comme celui-ci,
à qui le nôtre sert de lune.~»
La compagnie me régala d'un grand éclat de rire.
«~Ainsi peut-être, leur dis-je, se moque-t-on maintenant dans la lune,
de quelque autre, qui soutient que ce globe-ci est un monde.~»
Mais j'eus beau leur alléguer 
%que Pythagore, Epicure,
%Démocrite et, de notre âge, Copernic et Kepler, avaient

\endslide







\setarea{code result}
  topskip = 1cm
  everyposition = "\vskip4pt"

\setarea{code}
  hshift = 3cm
  width  = 11cm

\setarea{result}
  hshift* = 0cm
  width   = 6cm


\def\processexample{%
  \position{code}\typesetexample
  \doexample
  \position{result}{\quitvmode\lastsymbol}
  }

\slide[Symbols]
\def\lastsymbol{\square}
\Example
\newsymbol\square[1cm, padding=.15cm]{%
  pen .3,
  1 0, + 0 1, + -1 0, close, stroke,
  color red, move 1.5 0, + 1 0, + 0 1, + -1 0, fill,
  color green, move 3 0, + 1 0, + 0 1, + -1 0, paint,
  }
\Example/

\position{result}{\kern.5cm}

\def\lastsymbol{\triangle}
\Example
\newsymbol\triangle[1cm]{%
  color rgb .8 0 0,  1 .5, + -1 .5, fill,
  }
\Example/

\position{result}{\kern.1cm}

\def\lastsymbol{\spirale}
\Example
\newsymbol\spirale[.1mm]{%
  circle ur 100, circle rd 95, color red, stroke,
  circle dl  90, circle lu 85, color black, stroke,
  circle ur  80, circle rd 75, color red, stroke,
  circle dl  70, circle lu 65, color black
% stroke automatically added if there remains a path.
  }
\Example/

\position{result}{\kern.3cm}

\def\lastsymbol{\diamond}
\Example
\newsymbol\diamond[.5mm]{%
  color red, move 5 0, + 5 7, + 5 -7, + -5 -7, fill
  }
\Example/

\position{result}{\kern.5cm}

\def\lastsymbol{\trystero}
\Example
\newsymbol\trystero[.5cm]{%
  pen .1, move 2 2,
  circle ld 1, circle dr 1, circle ru 1, circle ul 1, stroke,
  move -.75 2, + 4.5 0, stroke,
  + 1.2 1.2, + -0 -2.4, close,
  move + 0 2, + .4 .4, + 0 -2.4, + -.4 .4,
  }
\Example/
\endslide















\setarea{
  fullshade1 fullshade2 fullshade3 fullshade4 fullshade5 fullshade6 fullshade7 fullshade8
  fullshade9 fullshade10 fullshade11 fullshade12 fullshade13 fullshade14 fullshade15 fullshade16
  mask}
  hshift  = 3cm
  visible = step

\setarea{mask}
  background = white
 

\setarea{
  shade1 shade2 shade3 shade4 shade5 shade6 shade7 shade8
  shade9 shade10 shade11 shade12 shade13 shade14 shade15 shade16
  border}
  hshift  = 4cm
  hshift* = 2cm
  vshift  = 1cm
  vshift* = 11cm
  visible = step
  
\setarea{
  shade1b shade2b shade3b shade4b shade5b shade6b shade7b shade8b
  shade9b shade10b shade11b shade12b shade13b shade14b shade15b shade16b
  borderb}
  hshift  = 14cm
  hshift* = 2cm
  vshift  = 6cm
  vshift* = 2cm
  visible = step

\setarea{border borderb}
  frame_width = .1pt
  frame_color = white


\newshade{shade1}
  fixed  = true
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight

\setarea{shade1 shade1b fullshade1 fullshade2 fullshade9 fullshade10} background = shade1\par

\newshade{shade2}
  fixed = false
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight

\setarea{shade2 shade2b} background = shade2\par

\newshade{shade3}
  fixed  = true
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight
  angle  = -45

\setarea{shade3 shade3b fullshade3 fullshade4 fullshade11 fullshade12} background = shade3\par

\newshade{shade4}
  fixed  = false
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight
  angle  = -45

\setarea{shade4 shade4b} background = shade4\par

\newshade{shade5}
  fixed  = true
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight
  speed  = 2

\setarea{shade5 shade5b fullshade5 fullshade6 fullshade13 fullshade14} background = shade5\par

\newshade{shade6}
  fixed = false
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight
  speed  = 2
  
\setarea{shade6 shade6b} background = shade6\par

\newshade{shade7}
  fixed  = true
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight
  angle  = -45
  speed  = 2
  
\setarea{shade7 shade7b fullshade7 fullshade8 fullshade15 fullshade16} background = shade7\par

\newshade{shade8}
  fixed = false
  width  = "\pdfpagewidth-3cm"
  height = \pdfpageheight
  angle = -45
  speed  = 2
  
\setarea{shade8 shade8b} background = shade8\par

\newshade{shade9}
  fixed  = true

\setarea{shade9 shade9b} background = shade9\par

\newshade{shade10}
  fixed = false

\setarea{shade10 shade10b} background = shade10\par

\newshade{shade11}
  fixed  = true
  angle  = -45

\setarea{shade11 shade11b} background = shade11\par

\newshade{shade12}
  fixed = false
  angle = -45

\setarea{shade12 shade12b} background = shade12\par

\newshade{shade13}
  fixed  = true
  speed  = 2

\setarea{shade13 shade13b} background = shade13\par

\newshade{shade14}
  fixed = false
  speed  = 2
  
\setarea{shade14 shade14b} background = shade14\par

\newshade{shade15}
  fixed  = true
  angle  = -45
  speed  = 2
  
\setarea{shade15 shade15b} background = shade15\par

\newshade{shade16}
  fixed = false
  angle = -45
  speed  = 2
  
\setarea{shade16 shade16b} background = shade16\par



\setarea{comment}
  hshift  = 4cm
  width   = 4cm
  vshift  = 10cm
  vshift* = 2cm
  font    = \mainfont
  foreground = attribute

\def\comment{\position{comment}[0pt,0pt]}







\slide[Shades]

\position{border}{} \position{borderb}{}

\step[mask, visible=true]
\position{mask}{}
\position{controlbar}[0cm,4cm]{\showorhide{toggle = mask nomask}{\Instruction{Show slide's shade}}}

\step[nomask]
\position{controlbar}[0cm,4cm]{\showorhide{toggle = mask nomask}{\Instruction{Hide slide's shade}}}





\step[shade1, visible=true]
\position{shade1}{} \position{shade1b}{} \position{fullshade1}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade2}{shade1}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade3}{shade1}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade5}{shade1}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade9}{shade1}
  }
\comment{The areas are open windows on the underlying shade,
which goes from black at the top of the slide to white at
the bottom.}

\step[shade2]
\position{shade2}{} \position{shade2b}{} \position{fullshade2}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade1}{shade2}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade4}{shade2}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade6}{shade2}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade10}{shade2}
  }
\comment{The shade goes from black at the top of each
areas to white somewhere at the bottom of its height;
the areas show the same shade at different position; the
area above is almost totally black because it displays the
shade's upper part, and the shade takes its time to reach
its bottom.}

\step[shade3]
\position{shade3}{} \position{shade3b}{} \position{fullshade3}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade4}{shade3}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade1}{shade3}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade7}{shade3}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade11}{shade3}
  }
\comment{The shade goes from black at the top right
corner to white at the bottom left one; the areas display
the parts they cover.}

\step[shade4]
\position{shade4}{} \position{shade4b}{} \position{fullshade4}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade3}{shade4}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade2}{shade4}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade8}{shade4}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade12}{shade4}
  }
\comment{The shade makes an angle of 45 degrees from
its top right corner and goes to white at its bottom left one;
it is positioned at the top right corner of the areas, which
are thus almost entirely black.}

\step[shade5]
\position{shade5}{} \position{shade5b}{} \position{fullshade5}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade6}{shade5}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade7}{shade5}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade1}{shade5}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade13}{shade5}
  }
\comment{The shade goes twice faster. It reaches white at its middle;
since it is fixed, the area on the right has nothing much to show.}

\step[shade6]
\position{shade6}{} \position{shade6b}{} \position{fullshade6}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade5}{shade6}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade8}{shade6}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade2}{shade6}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade14}{shade6}
  }
\comment{The shade goes twice faster from its top to its
bottom, reaching white at half its height; the areas display
its upper part corner only.}

\step[shade7]
\position{shade7}{} \position{shade7b}{} \position{fullshade7}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade8}{shade7}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade5}{shade7}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade3}{shade7}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade15}{shade7}
  }
\comment{The shade runs at 45 degrees from its upper right
corner and reaches white on its diagonal, because it goes
twice faster than normal; this diagonal visibly crosses the
areas, which seem really connected.}


\step[shade8]
\position{shade8}{} \position{shade8b}{} \position{fullshade8}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade7}{shade8}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade6}{shade8}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade4}{shade8}
  \hbox{\Attribute{height \& width}}
  \Valuebox{true}{false}{shade16}{shade8}
  }
\comment{The shade makes a vanishing triangle
from its upper right corner, which is the part
both areas display.}











\step[shade9]
\position{shade9}{} \position{shade9b}{} \position{fullshade9}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade10}{shade9}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade11}{shade9}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade13}{shade9}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade1}{shade9}
  }
\comment{The area is fixed at the top of the slide,
but since it has no dimensions it takes those of
the areas in which it is painted; hence the area
on the right shows its own bottom.}


\step[shade10]
\position{shade10}{} \position{shade10b}{} \position{fullshade10}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade9}{shade10}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade12}{shade10}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade14}{shade10}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade2}{shade10}
  }
\comment{The shade adapts to the areas' shapes, and goes
  from black at their tops to white at their bottom.}


\step[shade11]
\position{shade11}{} \position{shade11b}{} \position{fullshade11}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade12}{shade11}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade9}{shade11}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade15}{shade11}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade3}{shade11}
  }
\comment{The shade is a replica of the areas it paints in the
top right corner of the shade, hence the varying angles;
the result is quite unpredictable.}

\step[shade12]
\position{shade12}{} \position{shade12b}{} \position{fullshade12}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade11}{shade12}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade10}{shade12}
  \hbox{\Attribute{speed}}
  \Valuebox{1}{2}{shade16}{shade12}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade4}{shade12}
  }
\comment{The shade goes from each area's top right corner
to its bottom left one; in an ideal world where all rectangles
are square, it is slanted by and angle of 45 degrees.}

\step[shade13]
\position{shade13}{} \position{shade13b}{} \position{fullshade13}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade14}{shade13}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade15}{shade13}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade9}{shade13}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade5}{shade13}
  }
\comment{The shade runs a distance the height of the areas
it paints, but is still fixed at the top of the slide; because
of its speed, the area on the right is totally blanck.}

\step[shade14]
\position{shade14}{} \position{shade14b}{} \position{fullshade14}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade13}{shade14}
  \hbox{\Attribute{angle}}
  \valuebox{-45}{90}{shade16}{shade14}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade10}{shade14}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade6}{shade14}
  }
\comment{The shade fills the areas down to their
middle, because it goes twice faster than normal. The areas
look like scaling of each other.}

\step[shade15]
\position{shade15}{} \position{shade15b}{} \position{fullshade15}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \Valuebox{true}{false}{shade16}{shade15}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade13}{shade15}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade11}{shade15}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade7}{shade15}
  }
\comment{The area on the right can't catch
itself, it goes too fast; speed, angle and length
vary according to the area painted, but not the
position; thus the result is totally unpredictable.}

\step[shade16]
\position{shade16}{} \position{shade16b}{} \position{fullshade16}{}
\position{controlbar}[0cm,0cm]{%
  \hbox{\Attribute{fixed}}
  \valuebox{true}{false}{shade15}{shade16}
  \hbox{\Attribute{angle}}
  \Valuebox{-45}{90}{shade14}{shade16}
  \hbox{\Attribute{speed}}
  \valuebox{1}{2}{shade12}{shade16}
  \hbox{\Attribute{height \& width}}
  \valuebox{true}{false}{shade8}{shade16}
  }
\comment{The areas show their diagonals;
the variation in angles is quite blatant, because
the shade adapts to their dissimilar shapes and
increase the differences with speed.}



\endslide







\setarea{split blinds box wipe dissolve glitter fly push cover uncover fade}
  hshift     = 3cm
  foreground = white
  visible    = step
  hpos       = rr
  vpos       = center
  

\setarea{split box dissolve fly cover fade}
  background = attribute

\setarea{blinds wipe glitter push uncover}
  background = value
  
\setparameter step:
  on = here

\setparameter slide:
  top    = 0cm
  bottom = 0cm
  left   = 3cm
  right  = 0cm
  hpos   = rr
  vpos   = center


\slide[Default transitions]

\step[visible=true, off=next]
Let's \ital{split}!

\step[next, transition=split]
\position{split}{Let's \ital{blinds}}

\step[transition=blinds]
\position{blinds}{Let's \ital{box}}

\step[transition=box]
\position{box}{Let's \ital{wipe}}

\step[transition=wipe]
\position{wipe}{Let's \ital{dissolve}}

\step[transition=dissolve]
\position{dissolve}{Let's \ital{glitter}}

\step[transition=glitter]
\position{glitter}{Let's \ital{fly}}

\step[transition=fly]
\position{fly}{Let's \ital{push}}

\step[transition=push]
\position{push}{Let's \ital{cover}}

\step[transition=cover]
\position{cover}{Let's \ital{uncover}}

\step[transition=uncover]
\position{uncover}{Let's \ital{fade}}
\endslide






\slide[right=0cm, font=\titlefont, transition=fade, background=lightgrey, everyslide=, bookmark=false]
THE END
\endslide



\bye