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authorJeffrey H. Kingston <jeff@it.usyd.edu.au>2010-09-14 19:29:19 +0000
committerJeffrey H. Kingston <jeff@it.usyd.edu.au>2010-09-14 19:29:19 +0000
commit2c0ebbabd66ba21d3224bf58678bf62998b94c2c (patch)
tree7fac598cb4c5edc69abe255b986f2cba419df0b0 /doc/slides
parent71bdb35d52747e6d7d9f55df4524d57c2966be94 (diff)
downloadlout-2c0ebbabd66ba21d3224bf58678bf62998b94c2c.tar.gz
Remove PostScript files.
git-svn-id: http://svn.savannah.nongnu.org/svn/lout/trunk@3 9365b830-b601-4143-9ba8-b4a8e2c3339c
Diffstat (limited to 'doc/slides')
-rw-r--r--doc/slides/outfile.ps4470
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diff --git a/doc/slides/outfile.ps b/doc/slides/outfile.ps
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-% 22 December 1992 %
-% %
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-{ dup dup
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-% Version 2.0 (includes CIRCUM label) January 1992 %
-% %
-% To assist in avoiding name clashes, the names of all symbols %
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-% with user-defined labels and some labels used by users. %
-% %
-% <point> is two numbers, a point. %
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- 0 setgray 4 pt 4 pt moveto
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- ( Command: ) show
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-% must be defined outside lfigdict since used in lfigpromotelabels
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-{ 2 copy length exch length add string
- dup 0 4 index putinterval
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- 3 1 roll pop pop
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-% <string> lfigdebugprint -
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-% /lfigdebugprint
-% { print
-% (; operand stack:\n) print
-% count copy
-% count 2 idiv
-% { ==
-% (\n) print
-% } repeat
-% (\n) print
-% } def
-
-/lfigdict 120 dict def
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-
-% error messages
-/dictfull (dictfull error: too many labels?) def
-/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def
-/execstackoverflow (execstackoverflow error: figure nested too deeply?) def
-/limitcheck (limitcheck error: figure nested too deeply or too large?) def
-/syntaxerror (syntaxerror error: syntax error in text of figure?) def
-/typecheck (typecheck error: syntax error in text of figure?) def
-/undefined (undefined error: unknown or misspelt label?) def
-/VMError (VMError error: run out of memory?) def
-
-% push pi onto stack: - lfigpi <num>
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-
-% arc directions
-/clockwise false def
-/anticlockwise true def
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-% maximum of two numbers: <num> <num> lfigmax <num>
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-% minimum of two numbers: <num> <num> lfigmin <num>
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-% add two points: <point> <point> lfigpadd <point>
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-% subtract first point from second: <point> <point> lfigpsub <point>
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-% max two points: <point> <point> lfigpmax <point>
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-% min two points: <point> <point> lfigpmin <point>
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-% scalar multiplication: <point> <num> lfigpmul <point>
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-% point at angle and distance: <point> <length> <angle> lfigatangle <point>
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-% angle from one point to another: <point> <point> lfigangle <angle>
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-% distance between two points: <point> <point> lfigdistance <length>
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-% difference in x coords: <point> <point> lfigxdistance <length>
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-%difference in y coords: <point> <point> lfigydistance <length>
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-% stroke a solid line: <length> <dashlength> lfigsolid -
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-{ pop pop [] 0 setdash stroke
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-% stroke a lfigdashed line: <length> <dashlength> lfigdashed -
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-{ 2 copy div 2 le 1 index 0 le or
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-% stroke a lfigcdashed line: <length> <dashlength> lfigcdashed -
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-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt lfigmax [ exch dup ] dup 0 get 2 div setdash }
- { dup [ 4 2 roll exch 2 copy exch div
- 2 div ceiling div 1 index sub
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-% stroke a dotted line: <length> <dashlength> lfigdotted -
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-{ 2 copy le 1 index 0 le or
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-% stroke a noline line: <length> <dashlength> lfignoline -
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-{ pop pop
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-
-% painting (i.e. filling): - lfigwhite - (etc.)
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-/lfiglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def
-/lfigdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def
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-
-% line caps (and joins, not currently used)
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-
-% shape and labels of the @Box symbol
-/lfigbox
-{
- 0 0 /SW lfigpointdef
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- 0 ysize /NW lfigpointdef
- SE 0.5 lfigpmul /S lfigpointdef
- NW 0.5 lfigpmul /W lfigpointdef
- W SE lfigpadd /E lfigpointdef
- S NW lfigpadd /N lfigpointdef
- NE 0.5 lfigpmul /CTR lfigpointdef
- [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef
- SW SE NE NW SW
-} def
-
-% shape and labels of the @CurveBox symbol
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-{
-
- xsize 0.5 mul ysize 0.5 mul /CTR lfigpointdef
- xsize 0.5 mul 0 /S lfigpointdef
- xsize ysize 0.5 mul /E lfigpointdef
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- 0 ysize 0.5 mul /W lfigpointdef
-
- xmark 0.293 mul xmark 0.293 mul /SW lfigpointdef
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- xmark 0.293 mul ysize xmark 0.293 mul sub /NW lfigpointdef
-
- [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef
-
- xmark 0
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- [ xsize xmark sub xmark ]
- xsize xmark
- xsize ysize xmark sub
- [ xsize xmark sub ysize xmark sub ]
- xsize xmark sub ysize
- xmark ysize
- [ xmark ysize xmark sub ]
- 0 ysize xmark sub
- 0 xmark
- [ xmark xmark ]
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-
-% shadow of the @ShadowBox symbol
-% its shape and labels are done, somewhat inaccurately, with lfigbox
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-{ xmark 2 mul 0 moveto xsize 0 lineto
- xsize ysize xmark 2 mul sub lineto
- xsize xmark sub ysize xmark 2 mul sub lineto
- xsize xmark sub xmark lineto
- xmark 2 mul xmark lineto closepath fill
-} def
-
-% shape and labels of the @Square symbol
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-{
- xsize ysize 0.5 lfigpmul /CTR lfigpointdef
- CTR xsize xsize ysize ysize lfigpmax 0.5 lfigpmul lfigpadd /NE lfigpointdef
- CTR 0 0 CTR NE lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef
- CTR 0 0 CTR NE lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef
- CTR 0 0 CTR NE lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef
- SW 0.5 lfigpmul SE 0.5 lfigpmul lfigpadd /S lfigpointdef
- NW 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /N lfigpointdef
- SW 0.5 lfigpmul NW 0.5 lfigpmul lfigpadd /W lfigpointdef
- SE 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /E lfigpointdef
- [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef
- SW SE NE NW SW
-} def
-
-% shape and labels of the @Diamond symbol
-/lfigdiamond
-{
- xsize 0 0.5 lfigpmul /S lfigpointdef
- 0 ysize 0.5 lfigpmul /W lfigpointdef
- S W lfigpadd /CTR lfigpointdef
- CTR W lfigpadd /N lfigpointdef
- CTR S lfigpadd /E lfigpointdef
- [ xsize ysize 0.5 lfigpmul /lfigdiamondcircum cvx ] lfigcircumdef
- S E N W S
-} def
-
-% shape and labels of the @Ellipse symbol
-/lfigellipse
-{
- xsize 0 0.5 lfigpmul /S lfigpointdef
- 0 ysize 0.5 lfigpmul /W lfigpointdef
- S W lfigpadd /CTR lfigpointdef
- CTR W lfigpadd /N lfigpointdef
- CTR S lfigpadd /E lfigpointdef
- CTR xsize 0 0.3536 lfigpmul lfigpadd 0 ysize 0.3536 lfigpmul lfigpadd /NE lfigpointdef
- 0 ysize 0.3536 lfigpmul CTR xsize 0 0.3536 lfigpmul lfigpadd lfigpsub /SE lfigpointdef
- xsize 0 0.3536 lfigpmul CTR lfigpsub 0 ysize 0.3536 lfigpmul lfigpadd /NW lfigpointdef
- 0 ysize 0.3536 lfigpmul xsize 0 0.3536 lfigpmul CTR lfigpsub lfigpsub /SW lfigpointdef
- [ xsize ysize 0.5 lfigpmul /lfigellipsecircum cvx ] lfigcircumdef
- S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S
-} def
-
-% shape and labels of the @Circle symbol
-/lfigcircle
-{
- xsize ysize 0.5 lfigpmul /CTR lfigpointdef
- CTR xsize 0 ysize 0 lfigpmax 0.5 lfigpmul lfigpadd /E lfigpointdef
- CTR 0 0 CTR E lfigdistance 45 lfigatangle lfigpadd /NE lfigpointdef
- CTR 0 0 CTR E lfigdistance 90 lfigatangle lfigpadd /N lfigpointdef
- CTR 0 0 CTR E lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef
- CTR 0 0 CTR E lfigdistance 180 lfigatangle lfigpadd /W lfigpointdef
- CTR 0 0 CTR E lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef
- CTR 0 0 CTR E lfigdistance 270 lfigatangle lfigpadd /S lfigpointdef
- CTR 0 0 CTR E lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef
- [ S E lfigpsub /lfigellipsecircum cvx ] lfigcircumdef
- S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S
-} def
-
-% shape and labels of the @HLine and @HArrow symbols
-/lfighline
-{
- 0 ymark lfigprevious /FROM lfigpointdef
- xsize ymark lfigprevious /TO lfigpointdef
-} def
-
-% shape and labels of the @VLine and @VArrow symbols
-/lfigvline
-{
- xmark ysize lfigprevious /FROM lfigpointdef
- xmark 0 lfigprevious /TO lfigpointdef
-} def
-
-% points of a polygon around base with given no of sides, vert init angle:
-% <sides> <angle> figpolygon <point> ... <point>
-/lfigpolygon
-{ xsize ysize 0.5 lfigpmul /CTR lfigpointdef
- 90 sub CTR 2 copy lfigmax 5 3 roll
- [ 4 copy pop /lfigpolycircum cvx ] lfigcircumdef
- exch dup 360 exch div exch
- 1 1 3 2 roll
- { 4 string cvs (P) exch lfigconcat cvn
- 6 copy pop pop lfigatangle 2 copy 10 2 roll
- 3 2 roll lfigpointdef
- dup 3 1 roll add exch
- } for
- pop lfigatangle
-} def
-
-% next array element: <array> <index> lfiggetnext <array> <index> <any> true
-% or <array> <index> false
-/lfiggetnext
-{ 2 copy exch length ge
- { false }
- { 2 copy get exch 1 add exch true } ifelse
-} def
-
-% check whether thing is number: <any> lfigisnumbertype <any> <bool>
-/lfigisnumbertype
-{ dup type dup
- /integertype eq exch /realtype eq or
-} def
-
-% check whether thing is an array: <any> lfigisarraytype <any> <bool>
-/lfigisarraytype { dup type /arraytype eq } def
-
-% get next item: <array> <index> lfiggetnextitem <array> <index> 0
-% or <array> <index> <array> 1
-% or <array> <index> <point> 2
-/lfiggetnextitem
-{ lfiggetnext
- { lfigisarraytype
- { 1
- }
- { lfigisnumbertype
- { 3 1 roll
- lfiggetnext
- { lfigisnumbertype
- { 4 3 roll exch 2
- }
- { pop 3 2 roll pop 0
- } ifelse
- }
- { 3 2 roll pop 0
- } ifelse
- }
- { pop 0
- } ifelse
- } ifelse
- }
- { 0
- } ifelse
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-
-% set arc path: bool x1 y1 x2 y2 x0 y0 lfigsetarc <angle> <angle> <dist>
-% the path goes from x1 y1 to x2 y2 about centre x0 y0,
-% anticlockwise if bool is true else clockwise.
-% The orientations of backwards pointing and forwards pointing
-% arrowheads are returned in the two angles, and
-% the length of the arc is returned in <dist>.
-/lfigsetarc
-{
- 20 dict begin
- matrix currentmatrix 8 1 roll
- 2 copy translate 2 copy 8 2 roll
- 4 2 roll lfigpsub 6 2 roll lfigpsub
- dup /y1 exch def dup mul /y1s exch def
- dup /x1 exch def dup mul /x1s exch def
- dup /y2 exch def dup mul /y2s exch def
- dup /x2 exch def dup mul /x2s exch def
-
- y1s y2s eq
- { -1
- }
- { y1s x2s mul y2s x1s mul sub y1s y2s sub div
- } ifelse
- /da exch def
-
- x1s x2s eq
- { -1
- }
- { x1s y2s mul x2s y1s mul sub x1s x2s sub div
- } ifelse
- /db exch def
-
- da 0 gt db 0 gt and
- { /LMax da sqrt db sqrt lfigmax def
- /scalex da sqrt LMax div def
- /scaley db sqrt LMax div def
- scalex scaley scale
- 0 0 LMax
- 0 0 x1 scalex mul y1 scaley mul lfigangle
- 0 0 x2 scalex mul y2 scaley mul lfigangle
- 2 copy eq { 360 add } if
- 2 copy 8 2 roll
- 5 index { arc } { arcn } ifelse
- 2 index 1 index
- { 90 sub } { 90 add } ifelse
- dup sin scaley mul exch cos scalex mul atan
- 2 index 2 index
- { 90 add } { 90 sub } ifelse
- dup sin scaley mul exch cos scalex mul atan
- 5 2 roll % res1 res2 ang1 ang2 anticlockwise
- { exch sub } { sub } ifelse
- dup 0 le { 360 add } if lfigpi mul LMax mul 180 div
- }
- { 0 0 x1 y1 lfigdistance 0 0 x2 y2 lfigdistance eq
- 0 0 x1 y1 lfigdistance 0 gt and
- { 0 0
- 0 0 x1 y1 lfigdistance
- 0 0 x1 y1 lfigangle
- 0 0 x2 y2 lfigangle
- 2 copy eq { 360 add } if
- 2 copy 8 2 roll
- 5 index { arc } { arcn } ifelse
- 2 index 1 index
- { 90 sub } { 90 add } ifelse
- 2 index 2 index
- { 90 add } { 90 sub } ifelse
- 5 2 roll % res1 res2 ang1 ang2 clockwise
- { exch sub } { sub } ifelse
- dup 0 le { 360 add } if lfigpi mul 0 0 x1 y1 lfigdistance mul 180 div
- }
- { x2 y2 lineto pop
- x2 y2 x1 y1 lfigangle
- x1 y1 x2 y2 lfigangle
- x1 y1 x2 y2 lfigdistance
- } ifelse
- } ifelse
- 4 -1 roll setmatrix
- end
-} def
-
-% lfigsetcurve: set up a Bezier curve from x0 y0 to x3 y3
-% and return arrowhead angles and length of curve (actually 0)
-% x0 y0 x1 y1 x2 y2 x3 y3 lfigsetcurve <angle> <angle> <length>
-/lfigsetcurve
-{ 8 copy curveto pop pop
- lfigangle
- 5 1 roll
- 4 2 roll lfigangle
- exch
- 0
-} def
-
-% lfigpaintpath: paint a path of the given shape
-% /paint [ shape ] lfigpaintpath -
-/lfigpaintpath
-{
- 10 dict begin
- 0 newpath
- /prevseen false def
- /curveseen false def
- { lfiggetnextitem
- dup 0 eq { pop exit }
- { 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /curveseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr
- lfigsetcurve pop pop pop
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- lfigsetarc pop pop pop
- } ifelse
- }
- { xcurr ycurr lineto
- } ifelse
- }
- { xcurr ycurr moveto
- } ifelse
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop pop pop cvx exec
- end
-} def
-
-% stroke a path of the given shape in the given linestyle and dash length.
-% Return the origin and angle of the backward and forward arrow heads.
-% dashlength /linestyle [shape] lfigdopath [<point> <angle>] [<point> <angle>]
-/lfigdopath
-{
- 10 dict begin
- 0
- /prevseen false def
- /curveseen false def
- /backarrow [] def
- /fwdarrow [] def
- {
- lfiggetnextitem
- dup 0 eq { pop exit }
- {
- 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /prevseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { newpath xprev yprev moveto
- curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr lfigsetcurve
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- lfigsetarc
- } ifelse
- }
- { xcurr ycurr lineto
- xcurr ycurr xprev yprev lfigangle dup 180 sub
- xprev yprev xcurr ycurr lfigdistance
- } ifelse
- 6 index 6 index cvx exec
- [ xprev yprev 5 -1 roll ]
- backarrow length 0 eq
- { /backarrow exch def }
- { pop } ifelse
- [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def
- } if
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop
- pop pop pop pop
- backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse
- fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse
- end
-} def
-
-% lfigdoarrow: draw an arrow head of given form
-% dashlength /lstyle /pstyle hfrac height width [ <point> <angle> ] lfigdoarrow -
-/lfigdoarrow
-{ matrix currentmatrix 8 1 roll
- dup 0 get 1 index 1 get translate
- 2 get rotate
- [ 2 index neg 2 index 0 0
- 3 index 3 index neg
- 1 index 10 index mul 0
- 7 index 7 index ]
- 4 1 roll pop pop pop
- dup 3 1 roll
- gsave lfigpaintpath grestore lfigdopath pop pop
- setmatrix
-} def
-
-% arrow head styles
-/lfigopen 0.0 def
-/lfighalfopen 0.5 def
-/lfigclosed 1.0 def
-
-% stroke no arrows, forward, back, and both
-/lfignoarrow { pop pop pop pop pop pop pop pop } def
-/lfigforward { 7 -1 roll lfigdoarrow pop } def
-/lfigback { 8 -2 roll pop lfigdoarrow } def
-/lfigboth { 8 -1 roll 7 copy lfigdoarrow pop 7 -1 roll lfigdoarrow } def
-
-% lfigprevious: return previous point on path
-/lfigprevious
-{ lfigisnumbertype
- { 2 copy }
- { lfigisarraytype
- { 2 index 2 index }
- { 0 0 }
- ifelse
- } ifelse
-} def
-
-% label a point in 2nd top dictionary: <point> /name lfigpointdef -
-/lfigpointdef
-{
- % (Entering lfigpointdef) lfigdebugprint
- [ 4 2 roll transform
- /itransform cvx ] cvx
- currentdict end
- 3 1 roll
- % currentdict length currentdict maxlength lt
- % { def }
- % { exec moveto (too many labels) show stop }
- % ifelse
- def
- begin
- % (Leaving lfigpointdef) lfigdebugprint
-} def
-
-% promote labels from second top to third top dictionary
-% <string> lfigpromotelabels -
-/lfigpromotelabels
-{
- % (Entering lfigpromotelabels) lfigdebugprint
- currentdict end exch currentdict end
- { exch 20 string cvs 2 index
- (@) lfigconcat exch lfigconcat cvn exch def
- } forall pop begin
- % (Leaving lfigpromotelabels) lfigdebugprint
-} def
-
-% show labels (except CIRCUM): - lfigshowlabels -
-/lfigshowlabels
-{
- % (Entering lfigshowlabels) lfigdebugprint
- currentdict end
- currentdict
- { 1 index 20 string cvs (CIRCUM) search % if CIRCUM in key
- { pop pop pop pop pop }
- { pop cvx exec 2 copy
- newpath 1.5 pt 0 360 arc
- 0 setgray fill
- /Times-Roman findfont 8 pt scalefont setfont
- moveto 0.2 cm 0.1 cm rmoveto 20 string cvs show
- }
- ifelse
- } forall
- begin
- % (Leaving lfigshowlabels) lfigdebugprint
-} def
-
-% fix an angle to 0 <= res < 360: <angle> lfigfixangle <angle>
-/lfigfixangle
-{
- % (Entering lfigfixangle) lfigdebugprint
- { dup 0 ge { exit } if
- 360 add
- } loop
- { dup 360 lt { exit } if
- 360 sub
- } loop
- % (Leaving lfigfixangle) lfigdebugprint
-} def
-
-% find point on circumference of box: alpha a b lfigboxcircum x y
-/lfigboxcircum
-{
- % (Entering lfigboxcircum) lfigdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
- 0 0 a b lfigangle /theta exch def
-
- % if alpha <= theta, return (a, a*tan(alpha))
- alpha theta le
- { a a alpha sin mul alpha cos div }
- {
- % else if alpha <= 180 - theta, return (b*cot(alpha), b)
- alpha 180 theta sub le
- { b alpha cos mul alpha sin div b }
- {
- % else if alpha <= 180 + theta, return (-a, -a*tan(alpha))
- alpha 180 theta add le
- { a neg a neg alpha sin mul alpha cos div }
- {
- % else if alpha <= 360 - theta, return (-b*cot(alpha), -b)
- alpha 360 theta sub le
- { b neg alpha cos mul alpha sin div b neg }
- {
- % else 360 - theta <= alpha, return (a, a*tan(alpha))
- a a alpha sin mul alpha cos div
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving lfigboxcircum) lfigdebugprint
-} def
-
-% find quadratic roots (assume a != 0): a b c lfigqroots x1 x2 2
-% or x2 1
-% or 0
-/lfigqroots
-{
- 4 dict begin
- /c exch def
- /b exch def
- /a exch def
- /disc b b mul 4 a c mul mul sub def
- disc 0 lt
- { 0
- }
- { disc 0 eq
- { b neg 2 a mul div
- 1
- }
- { b neg disc sqrt add 2 a mul div
- b neg disc sqrt sub 2 a mul div
- 2
- }
- ifelse
- }
- ifelse
- end
-} def
-
-% work our which quadrant: <angle> lfigquadrant <0-3>
-/lfigquadrant
-{ dup 90 lt
- { pop 0
- }
- { dup 180 lt
- { pop 1
- }
- { 270 lt
- { 2
- }
- { 3
- } ifelse
- } ifelse
- } ifelse
-} def
-
-% find curvebox circum, assuming upper right quadrant: alpha a b xmk lfigcb x y
-/lfigcb
-{
- 6 dict begin
- /xmk exch def
- /b exch def
- /a exch def
- /alpha exch def
- /theta1 0 0 a b xmk sub lfigangle def
- /theta2 0 0 a xmk sub b lfigangle def
- alpha theta1 le
- { % if alpha <= theta1, return (a, a*tan(alpha))
- a a alpha sin mul alpha cos div
- }
- { alpha theta2 ge
- { % else if alpha > theta2, return (b*cot(alpha), b)
- b alpha cos mul alpha sin div b
- }
- {
- % else, return the intersection of line and circle
- a xmk sub b xmk sub xmk 0 0 alpha lfigcircleintersect
- dup 0 eq
- { % should never happen, just return any reasonable point
- pop
- a b 0.5 lfigpmul
- }
- { 1 eq
- { % should never happen, just return the point on top of stack
- }
- { % the usual case, two points on stack, return the larger
- lfigpmax
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- end
-} def
-
-% find point on circumference of curvebox: alpha a b xmk lfigcurveboxcircum x y
-/lfigcurveboxcircum
-{
- % (Entering lfigcurveboxcircum) lfigdebugprint
- 5 dict begin
- /xmk exch def
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
-
- % work out which quadrant we are in, and reflect accordingly
- /quad alpha lfigquadrant def
- quad 0 eq
- { alpha a b xmk lfigcb
- }
- { quad 1 eq
- { 180 alpha sub a b xmk lfigcb exch neg exch
- }
- { quad 2 eq
- { alpha 180 sub a b xmk lfigcb neg exch neg exch
- }
- { 360 alpha sub a b xmk lfigcb neg
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving lfigcurveboxcircum) lfigdebugprint
-} def
-
-% find point on circumference of diamond: alpha a b lfigdiamondcircum x y
-/lfigdiamondcircum
-{
- % (Entering lfigdiamondcircum) lfigdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
- b alpha cos abs mul a alpha sin abs mul add /denom exch def
- a b mul alpha cos mul denom div
- a b mul alpha sin mul denom div
- end
- % (Leaving lfigdiamondcircum) lfigdebugprint
-} def
-
-% find point on circumference of ellipse: alpha a b lfigellipsecircum x y
-/lfigellipsecircum
-{
- % (Entering lfigellipsecircum) lfigdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
- b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def
- a b mul alpha cos mul denom div
- a b mul alpha sin mul denom div
- end
- % (Leaving lfigellipsecircum) lfigdebugprint
-} def
-
-% find point of intersection of two lines each defined by two points
-% x1 y1 x2 y2 x3 y3 x4 y4 lfiglineintersect x y
-/lfiglineintersect
-{
- % (Entering lfiglineintersect) lfigdebugprint
- 13 dict begin
- /y4 exch def
- /x4 exch def
- /y3 exch def
- /x3 exch def
- /y2 exch def
- /x2 exch def
- /y1 exch def
- /x1 exch def
- x2 x1 sub /x21 exch def
- x4 x3 sub /x43 exch def
- y2 y1 sub /y21 exch def
- y4 y3 sub /y43 exch def
- y21 x43 mul y43 x21 mul sub /det exch def
-
- % calculate x
- y21 x43 mul x1 mul
- y43 x21 mul x3 mul sub
- y3 y1 sub x21 mul x43 mul add
- det div
-
- % calculate y
- x21 y43 mul y1 mul
- x43 y21 mul y3 mul sub
- x3 x1 sub y21 mul y43 mul add
- det neg div
-
- end
- % (Leaving lfiglineintersect) lfigdebugprint
-} def
-
-% find point on circumference of polygon
-% alpha radius num theta lfigpolycircum x y
-/lfigpolycircum
-{
- % (Entering lfigpolycircum) lfigdebugprint
- 13 dict begin
- /theta exch def
- /num exch def
- /radius exch def
- /alpha exch def
-
- % calculate delta, the angle from theta to alpha
- alpha theta sub lfigfixangle
-
- % calculate the angle which is the multiple of 360/num closest to delta
- 360 num div div truncate 360 num div mul theta add /anglea exch def
-
- % calculate the next multiple of 360/num after anglea
- anglea 360 num div add /angleb exch def
-
- % intersect the line through these two points with the alpha line
- anglea cos anglea sin angleb cos angleb sin
- 0 0 alpha cos 2 mul alpha sin 2 mul
- lfiglineintersect radius lfigpmul
-
- end
- % (Leaving lfigpolycircum) lfigdebugprint
-} def
-
-% find point of intersection of a point and a circle
-% x0 y0 r x1 y1 theta lfigcircleintersect xa ya xb yb 2
-% or xb yb 1
-% or 0
-/lfigcircleintersect
-{
- % (Entering lfigcircleintersect) lfigdebugprint
- 15 dict begin
- /theta exch def
- /y1 exch def
- /x1 exch def
- /r exch def
- /y0 exch def
- /x0 exch def
-
- % if sin(theta) = 0 then line is horizontal and y must be y1
- theta sin abs 0.00001 lt
- {
- /a 1 def
- /b -2 x0 mul def
- /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def
- a b c lfigqroots dup
- 0 eq
- { pop
- 0
- }
- { 1 eq
- { y1 1
- }
- { y1 exch y1 2
- } ifelse
- } ifelse
- }
- {
- /ct theta cos theta sin div def
- /a ct ct mul 1 add def
- /b ct x1 x0 sub mul y1 add y0 sub 2 mul def
- /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def
- a b c lfigqroots dup
- 0 eq
- { pop
- 0
- }
- { 1 eq
- { y1 add /yb exch def
- yb y1 sub ct mul x1 add /xb exch def
- xb yb 1
- }
- { y1 add /ya exch def
- ya y1 sub ct mul x1 add /xa exch def
- y1 add /yb exch def
- yb y1 sub ct mul x1 add /xb exch def
- xa ya xb yb 2
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving lfigcircleintersect) lfigdebugprint
-} def
-
-% add CIRCUM operator with this body: <array> lfigcircumdef -
-/lfigcircumdef
-{ % (Entering lfigcircumdef) lfigdebugprint
- /CIRCUM exch cvx
- currentdict end
- 3 1 roll
- % currentdict length currentdict maxlength lt
- % { def }
- % { exec moveto (too many labels) show stop }
- % ifelse
- def
- begin
- % (Leaving lfigcircumdef) lfigdebugprint
-} def
-
-end
-%%EndResource
-
-%%BeginResource: procset LoutGraphPrependGraphic
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/graphf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% PostScript @SysPrependGraphic file for @Graph (Version 1.0) %
-% %
-% Version 1.0 by Jeffrey H. Kingston, December 1993. %
-% %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
- /handleerror
- {
- { /Times-Roman findfont 8 pt scalefont setfont
- 0 setgray 4 pt 4 pt moveto
- $error /errorname get
- dup lgraphdict exch known
- { lgraphdict exch get }
- { 30 string cvs } ifelse
- show
- ( Command: ) show
- $error /command get 30 string cvs show
- } stopped {} if
- showpage stop
- } def
-end
-
-/lgraphdict 200 dict def
-lgraphdict begin
-
-% error messages
-/dictfull (dictfull error) def
-/dictstackoverflow (dictstackoverflow error) def
-/execstackoverflow (execstackoverflow error: expression too complex?) def
-/limitcheck (limitcheck error: graph too complex or too large?) def
-/syntaxerror (syntaxerror error: syntax error in text of graph?) def
-/typecheck (typecheck error: syntax error in text of graph?) def
-/undefined (undefined error: unknown or misspelt symbol?) def
-/rangecheck (rangecheck error: undefined expression (e.g. divide by zero)?) def
-/VMError (VMError error: run out of memory?) def
-
-% random number between x and y inclusive: x y dorand num
-/dorand { 1 index sub 1 add rand exch mod add } def
-
-% log to given base: base num dolog num
-/dolog { ln exch ln div } def
-
-% maximum of two numbers: <num> <num> max <num>
-/max { 2 copy gt { pop } { exch pop } ifelse } def
-
-% add two points: <point> <point> padd <point>
-/padd { exch 3 1 roll add 3 1 roll add exch } def
-
-% subtract first point from second: <point> <point> psub <point>
-/psub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% distance between two points: <point> <point> distance <length>
-/distance { psub dup mul exch dup mul add sqrt } def
-
-% point at angle and distance: <point> <length> <angle> atangle <point>
-/atangle { 2 copy cos mul 3 1 roll sin mul padd } def
-
-% angle from one point to another: <point> <point> angle <angle>
-/angle { psub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-
-% set up for line
-% - linesetup <length> <dashlength>
-/linesetup
-{ newpath
- xcurr ycurr trpoint xprev yprev trpoint
- 4 copy moveto lineto distance dashlength
-} def
-
-% set up for icon-avoiding line
-% - ilinesetup <length> <dashlength>
-/ilinesetup
-{ newpath
- xprev yprev trpoint xcurr ycurr trpoint 4 copy
- 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle
- 6 2 roll 4 2 roll
- 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle
- 4 copy moveto lineto distance dashlength
-} def
-
-
-% stroke a solid line: <length> <dashlength> solid -
-/solid
-{ pop pop [] 0 setdash linewidth setlinewidth stroke
-} def
-
-% stroke a dashed line: <length> <dashlength> dashed -
-/dashed
-{ 2 copy 2 mul le 1 index 0 le or
- { exch pop 1 pt max [ exch dup ] 0 setdash }
- { dup [ exch 4 2 roll 2 copy div
- 1 sub 2 div ceiling dup 4 1 roll
- 1 add mul sub exch div ] 0 setdash
- } ifelse linewidth setlinewidth stroke
-} def
-
-% stroke a cdashed line: <length> <dashlength> cdashed -
-/cdashed
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt max [ exch dup ] dup 0 get 2 div setdash }
- { dup [ 4 2 roll exch 2 copy exch div
- 2 div ceiling div 1 index sub
- ] exch 2 div setdash
- } ifelse linewidth setlinewidth stroke
-} def
-
-% stroke a dotted line: <length> <dashlength> dotted -
-/dotted
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt max [ exch 0 exch ] 0 setdash }
- { 1 index exch div ceiling div 0.99999 mul
- [ 0 3 2 roll ] 0 setdash
- } ifelse gsave 1 setlinecap linewidth setlinewidth stroke grestore newpath
-} def
-
-% stroke a noline line: <length> <dashlength> noline -
-/noline
-{ pop pop
-} def
-
-% stroke a y histogram: - yhisto -
-/yhisto
-{ xprev yleft trpoint yextra sub moveto
- xprev yprev trpoint lineto
- xcurr yprev trpoint lineto
- xcurr yleft trpoint yextra sub lineto
- linewidth setlinewidth stroke
-} def
-
-% stroke an x histogram: - xhisto -
-/xhisto
-{ xleft yprev trpoint exch xextra sub exch moveto
- xcurr yprev trpoint lineto
- xcurr ycurr trpoint lineto
- xleft ycurr trpoint exch xextra sub exch lineto
- linewidth setlinewidth stroke
-} def
-
-% stroke a surface y histogram: - surfaceyhisto -
-/surfaceyhisto
-{ firstpair
- { xprev yleft trpoint yextra sub moveto
- xprev yprev trpoint lineto
- }
- { xprev yprev trpoint moveto
- } ifelse
- xcurr yprev trpoint lineto
- lastpair
- { xcurr yleft trpoint yextra sub lineto
- }
- { xcurr ycurr trpoint lineto
- } ifelse
- linewidth setlinewidth stroke
-} def
-
-% stroke a surface x histogram: - surfacexhisto -
-/surfacexhisto
-{ firstpair
- { xleft yprev trpoint exch xextra sub exch moveto
- }
- { xprev yprev trpoint moveto
- } ifelse
- xcurr yprev trpoint lineto
- xcurr ycurr trpoint lineto
- lastpair
- { xleft ycurr trpoint exch xextra sub exch lineto
- } if
- linewidth setlinewidth stroke
-} def
-
-% stroke a filled y histogram: - filledyhisto -
-/filledyhisto
-{
- linewidth setlinewidth
- xprev yleft trpoint exch currentlinewidth 2 div add exch yextra sub moveto
- xprev yprev trpoint exch currentlinewidth 2 div add exch lineto
- xcurr yprev trpoint exch currentlinewidth 2 div sub exch lineto
- xcurr yleft trpoint exch currentlinewidth 2 div sub exch yextra sub lineto
- closepath fill
-} def
-
-% stroke a filled x histogram: - filledxhisto -
-/filledxhisto
-{
- linewidth setlinewidth
- xleft yprev trpoint currentlinewidth 2 div add exch xextra sub exch moveto
- xcurr yprev trpoint currentlinewidth 2 div add lineto
- xcurr ycurr trpoint currentlinewidth 2 div sub lineto
- xleft ycurr trpoint currentlinewidth 2 div sub exch xextra sub exch lineto
- closepath fill
-} def
-
-
-% cross: show a small cross
-/cross
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg symbolsize neg rmoveto
- symbolsize 2 mul symbolsize 2 mul rlineto
- 0 symbolsize -2 mul rmoveto
- symbolsize -2 mul symbolsize 2 mul rlineto
- [] 0 setdash stroke
-} def
-
-% plus: show a small plus
-/plus
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg 0 rmoveto
- symbolsize 2 mul 0 rlineto
- symbolsize neg symbolsize neg rmoveto
- 0 symbolsize 2 mul rlineto
- [] 0 setdash stroke
-} def
-
-% square: show a small square
-/square
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg symbolsize neg rmoveto
- symbolsize 2 mul 0 rlineto
- 0 symbolsize 2 mul rlineto
- symbolsize -2 mul 0 rlineto
- closepath [] 0 setdash stroke
-} def
-
-% filledsquare: show a small filled square
-/filledsquare
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg symbolsize neg rmoveto
- symbolsize 2 mul 0 rlineto
- 0 symbolsize 2 mul rlineto
- symbolsize -2 mul 0 rlineto
- closepath gsave [] 0 setdash stroke grestore fill
-} def
-
-% diamond: show a small diamond
-/diamond
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg 0 rmoveto
- symbolsize symbolsize neg rlineto
- symbolsize symbolsize rlineto
- symbolsize neg symbolsize rlineto
- closepath [] 0 setdash stroke
-} def
-
-% filleddiamond: show a small filled diamond
-/filleddiamond
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg 0 rmoveto
- symbolsize symbolsize neg rlineto
- symbolsize symbolsize rlineto
- symbolsize neg symbolsize rlineto
- closepath gsave [] 0 setdash stroke grestore fill
-} def
-
-% circle: show a small circle
-/circle
-{ newpath
- xcurr ycurr trpoint symbolsize 0 360 arc [] 0 setdash stroke
-} def
-
-% filledcircle: show a small filled circle
-/filledcircle
-{ newpath
- xcurr ycurr trpoint symbolsize 0 360 arc gsave [] 0 setdash stroke grestore fill
-} def
-
-% triangle: show a small triangle
-/triangle
-{ newpath
- xcurr ycurr trpoint moveto
- 0 symbolsize 1.5 mul rmoveto
- symbolsize neg symbolsize -2.5 mul rlineto
- symbolsize 2 mul 0 rlineto
- closepath [] 0 setdash stroke
-} def
-
-% filledtriangle: show a small filled triangle
-/filledtriangle
-{ newpath
- xcurr ycurr trpoint moveto
- 0 symbolsize 1.5 mul rmoveto
- symbolsize neg symbolsize -2.5 mul rlineto
- symbolsize 2 mul 0 rlineto
- closepath gsave [] 0 setdash stroke grestore fill
-} def
-
-
-%plog: like log only with a base, and protected from failing if <= 0
-% base x plog res
-/plog { dup 0 le { pop pop 0 } { ln exch ln div } ifelse } def
-
-% xtr: transform one x value logarithmically if xlog > 1
-% <num> xtr <num>
-/xtr
-{ xlog 1 gt
- { xlog exch plog
- } if
-} def
-
-% ytr: transform one y value logarithmically if ylog > 1
-% <num> ytr <num>
-/ytr
-{ ylog 1 gt
- { ylog exch plog
- } if
-} def
-
-% % trpoint: transform (x, y) in graph space into (x', y') in print space
-% % x y trpoint x' y'
-% /trpoint
-% { exch xtr trxmin sub trxmax trxmin sub div xwidth mul xextra add
-% exch ytr trymin sub trymax trymin sub div ywidth mul yextra add
-% } def
-
-
-% trpoint: transform (x, y) in graph space into (x', y') in print space
-% x y trpoint x' y'
-/trpoint
-{ exch xtr xdecr { trxmax exch sub } { trxmin sub } ifelse
- trxmax trxmin sub div xwidth mul xextra add
-
- exch ytr ydecr { trymax exch sub } { trymin sub } ifelse
- trymax trymin sub div ywidth mul yextra add
-} def
-
-
-% yonly: interpolate x values 1, 2, ... into data
-% [ data ] yonly [ newdata ]
-/yonly
-{ dup /tmp exch def
- length [ exch 1 exch 1 exch
- { dup tmp exch 1 sub get
- } for
- ]
-} def
-
-% xonly: interpolate y values 1, 2, ... into data
-% [ data ] yonly [ newdata ]
-/xonly
-{ dup /tmp exch def
- length [ exch 1 exch 1 exch
- { dup tmp exch 1 sub get exch
- } for
- ]
-} def
-
-% xandy: no interpolation of x or y values
-% [ data ] xandy [ data ]
-/xandy {} def
-
-
-% expstringwidth: calculate width of string containing optional exponent
-% <string> expstringwidth <width>
-/expstringwidth
-{ (^) search
- { exch pop stringwidth pop exch stringwidth pop 0.7 mul add }
- { stringwidth pop }
- ifelse
-} def
-
-% expstringshow: show string containing optional exponent
-% <string> expstringshow -
-/expstringshow
-{ (^) search
- { exch pop show 0 0.5 ft rmoveto
- gsave currentfont 0.7 scalefont setfont show grestore
- }
- { show
- }
- ifelse
-} def
-
-% concatenate two strings: <string> <string> strconcat <string>
-/strconcat
-{ 2 copy length exch length add string
- dup 0 4 index putinterval
- dup 3 index length 3 index putinterval
- 3 1 roll pop pop
-} def
-
-% lgen: generate one label automatically
-% num lgen num string
-/lgen { dup 20 string cvs } def
-
-% loglgen: generate one logarithmic label (with exponent)
-% <base> <exponent> loglgen <string>
-/loglgen
-{ 20 string cvs exch 20 string cvs
- (^) strconcat exch strconcat
-} def
-
-
-% printxtick: print one x tick
-% xpos printxtick -
-/printxtick
-{ newpath
- yleft trpoint moveto 0 yextra neg rmoveto
- 0 xticklength neg rlineto [] 0 setdash stroke
-} def
-
-% printxlabel: print one x label
-% (xlabel) xpos printxlabel -
-/printxlabel
-{ yleft trpoint moveto 0 yextra neg rmoveto
- 0 xticklength neg rmoveto 0 0.9 ft neg rmoveto
- xlog 1 gt { 0 0.3 ft neg rmoveto } if
- dup expstringwidth -2 div 0 rmoveto expstringshow
-} def
-
-% printytick: print one y tick
-% ypos printytick -
-/printytick
-{ newpath
- xleft exch trpoint moveto xextra neg 0 rmoveto
- yticklength neg 0 rlineto [] 0 setdash stroke
-} def
-
-% printylabel: print one y label
-% (ylabel) ypos printylabel -
-/printylabel
-{ xleft exch trpoint moveto xextra neg 0 rmoveto
- yticklength neg 0 rmoveto -0.3 ft -0.3 ft rmoveto
- dup expstringwidth neg 0 rmoveto expstringshow
-} def
-
-% printrtick: print one r tick
-% ypos printrtick -
-/printrtick
-{ newpath
- xright exch trpoint moveto xextra 0 rmoveto
- rticklength 0 rlineto [] 0 setdash stroke
-} def
-
-% printrlabel: print one r label
-% (rlabel) ypos printrlabel -
-/printrlabel
-{ xright exch trpoint moveto xextra 0 rmoveto
- rticklength 0 rmoveto 0.3 ft -0.3 ft rmoveto
- expstringshow
-} def
-
-% printticks: print ticks and labels
-% /tickproc /labelproc [ tickandlabeldata ] min printticks -
-/printticks
-{ /prev exch def
- { dup type dup dup /integertype eq exch /realtype eq or
- { pop dup /prev exch def 2 index cvx exec
- }
- { /stringtype eq
- { prev 2 index cvx exec
- }
- { pop
- } ifelse
- } ifelse
- } forall
- pop pop
-} def
-
-
-% printxaxistick: print one x axis tick
-% xpos printxaxistick -
-/printxaxistick
-{ newpath
- yaxis trpoint moveto 0 xticklength -2 div rmoveto
- 0 xticklength rlineto [] 0 setdash stroke
-} def
-
-% printxaxislabel: print one x axis label
-% (xlabel) xpos printxaxislabel -
-/printxaxislabel
-{ yaxis trpoint moveto
- 0 xticklength -2 div rmoveto 0 0.9 ft neg rmoveto
- xlog 1 gt { 0 0.3 ft neg rmoveto } if
- dup expstringwidth -2 div 0 rmoveto expstringshow
-} def
-
-% printyaxistick: print one y axis tick
-% ypos printyaxistick -
-/printyaxistick
-{ newpath
- xaxis exch trpoint moveto
- yticklength -2 div 0 rmoveto
- yticklength 0 rlineto [] 0 setdash stroke
-} def
-
-% printyaxislabel: print one y axis label
-% (ylabel) ypos printyaxislabel -
-/printyaxislabel
-{ xaxis exch trpoint moveto
- yticklength -2 div 0 rmoveto -0.3 ft -0.3 ft rmoveto
- dup expstringwidth neg 0 rmoveto expstringshow
-} def
-
-
-% <val> minmax -
-% perform minv := min(minv, val); maxv := max(maxv, val)
-% allowing for the possibility of minv, maxv, val being false (undefined)
-/minmax
-{ dup false eq
- { pop }
- { minv false eq
- { dup /minv exch def /maxv exch def }
- { dup minv lt
- { /minv exch def }
- { dup maxv gt
- { /maxv exch def }
- { pop }
- ifelse
- } ifelse
- } ifelse
- } ifelse
-} def
-
-% <ticks> ticksundef <ticks> <bool>
-% returns true iff the ticks array is undefined (one false entry)
-/ticksundef
-{ dup length 1 eq
- { dup 0 get false eq
- }
- { false }
- ifelse
-} def
-
-% <number> integral <boolean>
-% true if the number has an integral value
-/integral { dup round eq } def
-
-% ticksep ticks xory alldata minval maxval axis base ticksandlimits ticks min max base
-% ticksandlimits: sort out value of x or y ticks and limits and log base
-/ticksandlimits
-{ /base exch def
- /minv false def
- /maxv false def
-
- % min and max of user-supplied minval, maxval, and axis
- minmax minmax minmax
-
- % min and max of data points
- { 0 get dup dup length 1 sub 3 index exch 2 exch
- { get minmax dup
- } for pop pop
- } forall
- pop dup
-
- % min and max of tick values
- { dup type /stringtype eq
- { pop } { minmax } ifelse
- } forall
-
- % fix minv and maxv if undefined (false) or equal
- minv false eq
- { /minv -1 def /maxv 1 def }
- { minv maxv eq
- { minv 0 lt
- { /minv 2 minv mul def /maxv 0 def
- }
- { minv 0 eq
- { /minv -1 def /maxv 1 def
- }
- { /minv 0 def /maxv 2 maxv mul def
- } ifelse
- } ifelse
- } if
- } ifelse
-
- % invent ticks if undefined
- ticksundef
- { pop /ticksep exch def
-
- % if base is reasonable and minv is positive, logarithmic ticks
- base 1 gt minv 0 gt and
- {
- % get integral log of minv and maxv
- /logminv base minv plog floor cvi def
- /logmaxv base maxv plog ceiling cvi def
-
- % if minv close to base, make it 1; reset minv and maxv
- logminv 1 eq logmaxv 4 ge and { /logminv 0 def } if
- /minv base logminv exp def
- /maxv base logmaxv exp def
-
- % ticks := [ base**logminv, ... , base**logmaxv ]
- [ logminv 1 logmaxv
- { dup base exch exp
- exch base exch loglgen
- } for
- ]
- }
- { % non-logarithmic ticks
- {
- % fix tick separation if undefined (0) or too small
- /base 0 def
- /delta maxv minv sub def
- ticksep delta 30 div le
- { /ticksep 10 delta log 1 sub ceiling exp def
- ticksep delta 2 div ge
- { /ticksep ticksep 2 div def }
- { ticksep delta 5 div lt
- { /ticksep 2 ticksep mul def
- } if
- } ifelse
- } if
-
- % adjust minv and maxv to be multiples of ticksep
- /minv minv ticksep div floor ticksep mul def
- /maxv maxv ticksep div ceiling ticksep mul def
- /delta maxv minv sub def
-
- % if minv or maxv near zero, move to zero and redo
- minv ticksep eq
- { /minv 0 def }
- { maxv ticksep neg eq { /maxv 0 def } { exit } ifelse
- } ifelse
- } loop
-
- % if minv, maxv, and ticksep are all integral, set "makeint" to true
- /makeint minv integral maxv integral ticksep integral and and def
-
- % ticks := [ minv, minv+ticksep, ... , maxv ]
- [ 0 1 delta ticksep div round
- { ticksep mul minv add makeint { cvi } if lgen }
- for
- ]
- } ifelse
- }
- { exch pop
- } ifelse
- minv maxv base
-} def
-
-% xset: set up all data for x axis, including limits and ticks
-% xticksep xticks 0 alldata xmin xmax xlog xextra xdecr xaxis xticklength xset -
-/xset
-{ /xticklength exch def
- /xaxis exch def
- /xdecr exch def
- /xextra exch def
- xaxis exch ticksandlimits
- /xlog exch def /xmax exch def /xmin exch def /xticks exch def
- /xleft xdecr { xmax } { xmin } ifelse def
- /xright xdecr { xmin } { xmax } ifelse def
- /xwidth xsize xextra 2 mul sub def
- /trxmin xmin xtr def /trxmax xmax xtr def
-} def
-
-% yset: set up all data for y axis, including limits and yticks
-% yticksep yticks 0 alldata ymin ymax ylog yextra ydecr yaxis yticklength yset -
-/yset
-{ /yticklength exch def
- /yaxis exch def
- /ydecr exch def
- /yextra exch def
- yaxis exch ticksandlimits
- /ylog exch def /ymax exch def /ymin exch def /yticks exch def
- /yleft ydecr { ymax } { ymin } ifelse def
- /yright ydecr { ymin } { ymax } ifelse def
- /ywidth ysize yextra 2 mul sub def
- /trymin ymin ytr def /trymax ymax ytr def
-} def
-
-% rset: set up all data for y axis (again), but including limits and rticks
-% rticksep rticks 0 alldata ymin ymax ylog yextra ydecr yaxis rticklength rset -
-/rset
-{ /rticklength exch def
- /yaxis exch def
- /ydecr exch def
- /yextra exch def
- yaxis exch ticksandlimits
- /ylog exch def /ymax exch def /ymin exch def /rticks exch def
- /yleft ydecr { ymax } { ymin } ifelse def
- /yright ydecr { ymin } { ymax } ifelse def
- /ywidth ysize yextra 2 mul sub def
- /trymin ymin ytr def /trymax ymax ytr def
-} def
-
-% norset: set up data for no rticks
-% - norset -
-/norset
-{ /rticklength 0 def
- /rticks [] def
-} def
-
-% framestyle: print a frame around the graph
-/framestyle
-{ 0 0 moveto xsize 0 lineto xsize ysize lineto
- 0 ysize lineto closepath stroke
- /printxtick /printxlabel xticks xleft printticks
- /printytick /printylabel yticks ymin printticks
- /printrtick /printrlabel rticks ymin printticks
-} def
-
-% nonestyle: print nothing around the graph
-/nonestyle
-{
-} def
-
-% axesstyle: print axes for the graph (unless axis values missing)
-/axesstyle
-{
- xaxis false eq yaxis false eq or
- { framestyle }
- { xaxis yaxis trpoint dup 0 exch moveto xsize exch lineto
- dup 0 moveto ysize lineto stroke
- /printxaxistick /printxaxislabel xticks xleft printticks
- /printyaxistick /printyaxislabel yticks ymin printticks
- } ifelse
-} def
-
-% rundata: run all data sets
-/rundata
-{ alldata
- { gsave
- dup dup dup dup
- 4 get /dopaint exch def
- 3 get /initrun exch def
- 2 get /pairs exch def
- 1 get /points exch def
- 0 get /data exch def
- dopaint
- { data length 4 ge
- { initrun
- newpath
- data 0 get ymin trpoint yextra sub moveto
- 0 2 data length 2 sub
- { dup 1 add
- data exch get /ycurr exch def
- data exch get /xcurr exch def
- xcurr ycurr trpoint lineto
- } for
- data dup length 2 sub get ymin trpoint yextra sub lineto
- closepath fill
- } if
- } if
- initrun
- data length 2 ge
- {
- /xcurr data 0 get def
- /ycurr data 1 get def
- points
- data length 4 ge
- { 2 2 data length 2 sub
- { /xprev xcurr def
- /yprev ycurr def
- dup dup 2 eq /firstpair exch def
- data length 2 sub eq /lastpair exch def
- dup 1 add
- data exch get /ycurr exch def
- data exch get /xcurr exch def
- pairs
- points
- } for
- } if
- } if
- grestore
- } forall
-} def
-
-end
-%%EndResource
-
-%%BeginResource: procset LoutBasicSetup
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/bsf.lpg
-
-% width height linethickness louteuro -
-% draw a Euro symbol of this width and height with this line thickness
-% Author: Jeff Kingston, based on code from Andrew Beardsley
-/louteuro {
- 20 dict begin
- /eurothick exch def
- /euroheight exch def
- /eurowidth exch def
- /eurostrokewidth euroheight 0.8 mul def
- /eurostep eurothick 60 cos mul 60 sin div def
- /eurotheta 40 def
-
- % llx lly width thickness louteurobox -
- % draw angled box starting at (llx, lly) with given width and thickness
- /louteurobox
- {
- /euroboxthick exch def
- /euroboxwidth exch def
- newpath moveto euroboxwidth 0 rlineto
- eurostep euroboxthick rlineto
- euroboxwidth neg 0 rlineto closepath fill
- } def
-
- % lower cross stroke
- 0 euroheight 2 div eurothick 1.5 mul sub
- eurostrokewidth eurothick louteurobox
-
- % upper cross stroke
- 0 euroheight 2 div eurothick 0.5 mul add
- eurostrokewidth eurostep 2 mul add eurothick louteurobox
-
- % circular part
- /eurohctr eurowidth euroheight 2 div eurotheta cos mul sub def
- /eurovctr euroheight 2 div def
- newpath
- eurohctr eurovctr eurovctr eurotheta 350 eurotheta sub arc
- eurohctr eurovctr eurovctr eurothick sub 365 eurotheta sub eurotheta arcn
- closepath fill
- end
-} def
-
-% path for @FullWidthRule symbol
-/LoutRule
-{ 0 0 moveto xsize 0 lineto
-} def
-
-% path for @Box symbol
-/LoutBox
-{ 0 0 moveto xsize 0 lineto
- xsize ysize lineto 0 ysize lineto
- closepath
-} def
-
-% path for @CurveBox symbol
-/LoutCurveBox
-{ xmark 0 moveto
- xsize xmark sub xmark xmark 270 360 arc
- xsize xmark sub ysize xmark sub xmark 0 90 arc
- xmark ysize xmark sub xmark 90 180 arc
- xmark xmark xmark 180 270 arc
- closepath
-} def
-
-% path for @ShadowBox symbol
-/LoutShadowBox
-{ xmark 2 mul 0 moveto xsize 0 lineto
- xsize ysize xmark 2 mul sub lineto
- xsize xmark sub ysize xmark 2 mul sub lineto
- xsize xmark sub xmark lineto
- xmark 2 mul xmark lineto
- closepath
-} def
-
-% set up dictionary containing margin note data: parity LoutMargSet -
-/LoutMargSet
-{ /LoutMargDict 12 dict def
- LoutMargDict begin
- /parity exch def
- /matr matrix currentmatrix def
- /rightx xsize def
- /lefty ysize def % highest allowable point for top of next left note
- /righty ysize def % highest allowable point for top of next right note
- /max { 2 copy gt { pop } { exch pop } ifelse } def
- /min { 2 copy lt { pop } { exch pop } ifelse } def
- end
-} def
-
-%translate coordinate system for marginal notes: type LoutMargShift -
-% where type 0 is left margin, 1 is right margin, 2 is outer, 3 is inner
-/LoutMargShift
-{ LoutMargDict begin
-
- % y coordinate of top of note, in margin coords, before vertical adjust
- 0 ysize transform matr itransform exch pop
-
- % decide whether left or right margin based on type and parity
- exch [ 0 1 parity 1 parity sub ] exch get 0 eq
- {
- % left margin: adjust top of note downwards if overlaps previous note
- lefty min
-
- % bottom of note is new lefty position and also translate position
- ysize sub dup /lefty exch def
-
- % want right edge of note at coordinate zero
- xsize neg exch
- }
- {
- % right margin: adjust top of note downwards if overlaps previous note
- righty min
-
- % bottom of note is new righty position and also translate position
- ysize sub dup /righty exch def
-
- % want left edge of note at coordinate rightx
- rightx exch
- } ifelse
-
- % stack now contains coord of bottom left corner in margin coordinates
- matr setmatrix translate
- end
-} def
-
-% create LoutPageDict with left, right, foot, top for @Place symbol users
-/LoutPageSet
-{
- /LoutPageDict 5 dict def
- LoutPageDict begin
- /matr matrix currentmatrix def
- /left 0 def
- /right xsize def
- /foot 0 def
- /top ysize def
- end
-
-} def
-
-%%EndResource
-
-%%EndProlog
-
-%%BeginSetup
-%%IncludeResource: font Times-Roman
-/Times-Romanfnt82 vec2 /Times-Roman LoutRecode
-/fnt82 { /Times-Romanfnt82 LoutFont } def
-%%IncludeResource: font Helvetica
-/Helveticafnt35 vec2 /Helvetica LoutRecode
-/fnt35 { /Helveticafnt35 LoutFont } def
-%%IncludeResource: font Helvetica-Oblique
-/Helvetica-Obliquefnt36 vec2 /Helvetica-Oblique LoutRecode
-/fnt36 { /Helvetica-Obliquefnt36 LoutFont } def
-%%EndSetup
-
-%%Page: 1 1
-%%BeginPageSetup
-%%PageResources: font Times-Roman
-%%+ font Helvetica
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-%%EndPageSetup
-
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-9066 12588 0 12588 400 480 100 1417 -14005 LoutGr2
-1 LoutMargSet
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-160 fnt82 0 12479(lout)m 9002(1)s 600 fnt35 691 11623(A)m
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-3956 10183(Lout)m 616 8743(Document)m 3500(F)s 18(or)k -15(matting)k
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-%%Page: 2 2
-%%BeginPageSetup
-%%PageResources: font Times-Roman
-%%+ font Times-Bold
-%%+ font Helvetica
-/pgsave save def
-%%IncludeResource: font Times-Bold
-/Times-Boldfnt84 vec2 /Times-Bold LoutRecode
-/fnt84 { /Times-Boldfnt84 LoutFont } def
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-%%EndPageSetup
-gsave
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-160 fnt82 0 12479(lout)m 8990(2)s 400 fnt84 2988 11377(A)m
-3363(simple)s 4565(input)s 5575(\207le)s 360 fnt35 800 9646(@SysInclude { doc })m
-800 9166(@Doc @T)m 43(e)k 10(xt @Begin)k 800 8686(Hello)m 14(, w)k 3(or)k -5(ld)k
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-889(to)s 1313(f)s 10(ormat)k 2579(it)s 360 fnt35
-800 5633(lout \207lename > out.ps)m 800 5153(ghostvie)m 7(w out.ps)k 800 4673(mpr out.ps)m
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