Remove PostScript files.

git-svn-id: http://svn.savannah.nongnu.org/svn/lout/trunk@3 9365b830-b601-4143-9ba8-b4a8e2c3339c

3 files changed, 0 insertions, 31943 deletions

diff --git a/doc/design/outfile.ps b/doc/design/outfile.ps
deleted file mode 100644
index 3f7525a..0000000
--- a/doc/design/outfile.ps
+++ /dev/null
@@ -1,11727 +0,0 @@
-%!PS-Adobe-3.0
-%%Creator: Basser Lout Version 3.17 (September 1999)
-%%CreationDate: Fri Sep 17 11:56:58 1999
-%%DocumentData: Binary
-%%DocumentNeededResources: (atend)
-%%DocumentMedia: Plain 595 842 0 white ()
-%%DocumentSuppliedResources: (atend)
-%%Pages: (atend)
-%%BoundingBox: 0 0 595 842
-%%EndComments
-
-%%BeginProlog
-%%BeginResource: procset LoutStartUp
-/m  { 3 1 roll moveto show } bind def
-/s  { exch currentpoint exch pop moveto show } bind def
-/k  { exch neg 0 rmoveto show } bind def
-/ul { gsave setlinewidth dup 3 1 roll
-      moveto lineto stroke grestore } bind def
-/in { 1440 mul } def
-/cm { 567 mul } def
-/pt { 20 mul } def
-/em { 120 mul } def
-/sp { louts mul } def
-/vs { loutv mul } def
-/ft { loutf mul } def
-/dg {           } def
-
-/LoutGraphic {
-  /louts exch def
-  /loutv exch def
-  /loutf exch def
-  /ymark exch def
-  /xmark exch def
-  /ysize exch def
-  /xsize exch def
-} def
-
-/LoutGr2 { gsave translate LoutGraphic gsave } def
-
-/LoutFont
-{ findfont exch scalefont setfont
-} bind def
-
-/LoutRecode {
-  { findfont dup length dict begin
-    {1 index /FID ne {def} {pop pop} ifelse} forall
-    /Encoding exch def
-    currentdict end definefont pop
-  }
-  stopped pop
-} bind def
-
-/BeginEPSF {
-  /LoutEPSFState save def
-  /dict_count countdictstack def
-  /op_count count 1 sub def
-  userdict begin
-  /showpage { } def
-  0 setgray 0 setlinecap
-  1 setlinewidth 0 setlinejoin
-  10 setmiterlimit [] 0 setdash newpath
-  /languagelevel where
-  { pop languagelevel
-    1 ne
-    { false setstrokeadjust false setoverprint
-    } if
-  } if
-} bind def
-
-/EndEPSF {
-  count op_count sub { pop } repeat
-  countdictstack dict_count sub { end } repeat
-  LoutEPSFState restore
-} bind def
-%%EndResource
-
-%%BeginResource encoding vec2
-/vec2 [
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright
-/parenleft /parenright /asterisk /plus /comma /hyphen /period /slash
-/zero /one /two /three /four /five /six /seven
-/eight /nine /colon /semicolon /less /equal /greater /question
-/at /A /B /C /D /E /F /G
-/H /I /J /K /L /M /N /O
-/P /Q /R /S /T /U /V /W
-/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore
-/quoteleft /a /b /c /d /e /f /g
-/h /i /j /k /l /m /n /o
-/p /q /r /s /t /u /v /w
-/x /y /z /braceleft /bar /braceright /asciitilde /.notdef
-/quotesinglbase /quotedblbase /ellipsis /OE /oe /quotedblleft /quotedblright /fi
-/fl /endash /emdash /bullet /dagger /daggerdbl /florin /fraction
-/dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent
-/dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron
-/space /exclamdown /cent /sterling /currency /yen /brokenbar /section
-/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron
-/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /periodcentered
-/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown
-/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla
-/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis
-/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply
-/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls
-/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla
-/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis
-/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide
-/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis
-] def
-%%EndResource
-
-%%BeginResource: procset LoutTabPrependGraphic
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/tabf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                  %
-%  PostScript @SysPrependGraphic file for @Tab     %
-%                                                  %
-%  To assist in avoiding name clashes, the names   %
-%  of all these symbols begin with "ltab".         %
-%                                                  %
-%  Jeffrey H. Kingston                             %
-%  24 September 1991                               %
-%  22 December 1992                                %
-%                                                  %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-% linewidth ltabhs -
-% horizontal single line
-/ltabhs
-{  0 0 moveto xsize 0 lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhsp -
-% horizontal single line with projecting ends
-/ltabhsp
-{  0 0 moveto xsize 0 lineto
-   setlinewidth 2 setlinecap stroke
-} def
-
-% linewidth ltabhd -
-% horizontal double line
-/ltabhd
-{  dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch 3 mul moveto xsize exch 3 mul lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhdb -
-% horizontal double line below mark
-/ltabhdb
-{  dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch -3 mul moveto xsize exch -3 mul lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhdnw -
-% horizontal double line with northwest corner
-/ltabhdnw
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   xsize exch 3 mul moveto
-   -3 mul exch 3 mul lineto
-   -3 mul 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdne -
-% horizontal double line with northeast corner
-/ltabhdne
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch 3 mul moveto
-   3 mul xsize add exch 3 mul lineto
-   3 mul xsize add 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdsw -
-% horizontal double line with southwest corner
-/ltabhdsw
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   xsize exch -3 mul moveto
-   -3 mul exch -3 mul lineto
-   -3 mul 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdse -
-% horizontal double line with southeast corner
-/ltabhdse
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch -3 mul moveto
-   3 mul xsize add exch -3 mul lineto
-   3 mul xsize add 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabvs -
-% vertical single line
-/ltabvs
-{  0 0 moveto 0 ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabvd -
-% vertical double line
-/ltabvd
-{  dup dup
-   0 0 moveto 0 ysize lineto
-   -3 mul 0 moveto -3 mul ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabvdr -
-% vertical double line to right of mark
-/ltabvdr
-{  dup dup
-   0 0 moveto 0 ysize lineto
-   3 mul 0 moveto 3 mul ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-%%EndResource
-
-%%BeginResource: procset LoutFigPrependGraphic
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/figf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                                    %
-%  PostScript @SysPrependGraphic file for @Fig  Jeffrey H. Kingston  %
-%  Version 2.0 (includes CIRCUM label)                 January 1992  %
-%                                                                    %
-%  To assist in avoiding name clashes, the names of all symbols      %
-%  defined here begin with "lfig".  However, this is not feasible    %
-%  with user-defined labels and some labels used by users.           %
-%                                                                    %
-%  <point>      is two numbers, a point.                             %
-%  <length>     is one number, a length                              %
-%  <angle>      is one number, an angle in degrees                   %
-%  <dashlength> is one number, the preferred length of a dash        %
-%                                                                    %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
-   /handleerror
-   {
-      {  /Times-Roman findfont 8 pt scalefont setfont
-	 0 setgray 4 pt 4 pt moveto
-	 $error /errorname get
-	 dup lfigdict exch known
-	 { lfigdict exch get }
-	 { 30 string cvs } ifelse
-	 show
-	 (  Command: ) show
-	 $error /command get 30 string cvs show
-      } stopped {} if
-      showpage stop
-   } def
-end
-
-% concat strings: <string> <string> lfigconcat <string>
-% must be defined outside lfigdict since used in lfigpromotelabels
-/lfigconcat
-{ 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
-
-% <string> lfigdebugprint -
-% must be defined outside lfigdict since used in arbitrary places
-% /lfigdebugprint
-% { print
-%   (;  operand stack:\n) print
-%   count copy
-%   count 2 idiv
-%   { ==
-%     (\n) print
-%   } repeat
-%   (\n) print
-% } def
-
-/lfigdict 120 dict def
-lfigdict begin
-
-% 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>
-/lfigpi 3.14159 def
-
-% arc directions
-/clockwise     false def
-/anticlockwise true  def
-
-% maximum of two numbers:  <num> <num> lfigmax <num>
-/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def
-
-% minimum of two numbers:  <num> <num> lfigmin <num>
-/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def
-
-% add two points:  <point> <point> lfigpadd <point>
-/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def
-
-% subtract first point from second:  <point> <point> lfigpsub <point>
-/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% max two points:  <point> <point> lfigpmax <point>
-/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def
-
-% min two points:  <point> <point> lfigpmin <point>
-/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def
-
-% scalar multiplication: <point> <num> lfigpmul <point>
-/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def
-
-% point at angle and distance:  <point> <length> <angle> lfigatangle <point>
-/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def
-
-% angle from one point to another:  <point> <point> lfigangle <angle>
-/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-% distance between two points:  <point> <point> lfigdistance <length>
-/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def
-
-% difference in x coords: <point> <point> lfigxdistance <length>
-/lfigxdistance { pop 3 1 roll pop sub } def
-
-%difference in y coords: <point> <point> lfigydistance <length>
-/lfigydistance { 3 1 roll pop sub exch pop } def
-
-% stroke a solid line:  <length> <dashlength> lfigsolid -
-/lfigsolid
-{  pop pop [] 0 setdash stroke
-} def
-
-% stroke a lfigdashed line:   <length> <dashlength> lfigdashed -
-/lfigdashed
-{  2 copy div 2 le 1 index 0 le or
-   {  exch pop 1 pt lfigmax [ 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 stroke
-} def
-
-% stroke a lfigcdashed line:  <length> <dashlength> lfigcdashed -
-/lfigcdashed
-{  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
-     ] exch 2 div setdash
-   } ifelse stroke
-} def
-
-% stroke a dotted line:  <length> <dashlength> lfigdotted -
-/lfigdotted
-{  2 copy le 1 index 0 le or
-   { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash }
-   { 1 index exch div ceiling div
-     [ 0 3 2 roll ] 0 setdash
-   } ifelse stroke
-} def
-
-% stroke a noline line:  <length> <dashlength> lfignoline -
-/lfignoline
-{ pop pop
-} def
-
-% painting (i.e. filling): - lfigwhite - (etc.)
-/lfignopaint		{			       } def
-/lfignochange		{ 			  fill } def
-/lfigdarkblue		{ 0.0 0.0 0.5 setrgbcolor fill } def
-/lfigblue		{ 0.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightblue		{ 0.5 0.5 1.0 setrgbcolor fill } def
-/lfigdarkgreen		{ 0.0 0.5 0.0 setrgbcolor fill } def
-/lfiggreen		{ 0.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightgreen		{ 0.5 1.0 0.5 setrgbcolor fill } def
-/lfigdarkred		{ 0.5 0.0 0.0 setrgbcolor fill } def
-/lfigred		{ 1.0 0.0 0.0 setrgbcolor fill } def
-/lfiglightred		{ 1.0 0.5 0.5 setrgbcolor fill } def
-/lfigdarkcyan		{ 0.0 0.5 0.5 setrgbcolor fill } def
-/lfigcyan		{ 0.0 1.0 1.0 setrgbcolor fill } def
-/lfiglightcyan		{ 0.5 1.0 1.0 setrgbcolor fill } def
-/lfigdarkmagenta	{ 0.5 0.0 0.5 setrgbcolor fill } def
-/lfigmagenta		{ 1.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightmagenta	{ 1.0 0.5 1.0 setrgbcolor fill } def
-/lfigdarkyellow		{ 0.5 0.5 0.0 setrgbcolor fill } def
-/lfigyellow		{ 1.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightyellow	{ 1.0 1.0 0.5 setrgbcolor fill } def
-/lfigdarkgray		{ 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggray		{ 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgray		{ 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigdarkgrey		{ 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggrey		{ 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgrey		{ 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigblack		{ 0.0 0.0 0.0 setrgbcolor fill } def
-/lfigwhite		{ 1.0 1.0 1.0 setrgbcolor fill } def
-
-% line caps (and joins, not currently used)
-/lfigbutt       0 def
-/lfiground      1 def
-/lfigprojecting 2 def
-/lfigmiter      0 def
-/lfigbevel      2 def
-
-% shape and labels of the @Box symbol
-/lfigbox
-{
-   0     0     /SW  lfigpointdef
-   xsize 0     /SE  lfigpointdef
-   xsize ysize /NE  lfigpointdef
-   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
-/lfigcurvebox
-{
-
-   xsize 0.5 mul	ysize 0.5 mul	/CTR lfigpointdef
-   xsize 0.5 mul	0		/S   lfigpointdef
-   xsize		ysize 0.5 mul	/E   lfigpointdef
-   xsize 0.5 mul	ysize		/N   lfigpointdef
-   0			ysize 0.5 mul	/W   lfigpointdef
-
-   xmark 0.293 mul		xmark 0.293 mul		  /SW  lfigpointdef
-   xsize xmark 0.293 mul sub	xmark 0.293 mul		  /SE  lfigpointdef
-   xsize xmark 0.293 mul sub	ysize xmark 0.293 mul sub /NE  lfigpointdef
-   xmark 0.293 mul		ysize xmark 0.293 mul sub /NW  lfigpointdef
-
-   [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef
-
-   xmark		0
-   xsize xmark sub	0
-   [ 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		]
-   xmark		0
-} def
-
-% shadow of the @ShadowBox symbol
-% its shape and labels are done, somewhat inaccurately, with lfigbox
-/lfigshadow
-{ 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
-/lfigsquare
-{
-   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
-} def
-
-% 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 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
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-/m  { 3 1 roll moveto show } bind def
-/s  { exch currentpoint exch pop moveto show } bind def
-/k  { exch neg 0 rmoveto show } bind def
-/ul { gsave setlinewidth dup 3 1 roll
-      moveto lineto stroke grestore } bind def
-/in { 1440 mul } def
-/cm { 567 mul } def
-/pt { 20 mul } def
-/em { 120 mul } def
-/sp { louts mul } def
-/vs { loutv mul } def
-/ft { loutf mul } def
-/dg {           } def
-
-/LoutGraphic {
-  /louts exch def
-  /loutv exch def
-  /loutf exch def
-  /ymark exch def
-  /xmark exch def
-  /ysize exch def
-  /xsize exch def
-} def
-
-/LoutGr2 { gsave translate LoutGraphic gsave } def
-
-/LoutFont
-{ findfont exch scalefont setfont
-} bind def
-
-/LoutRecode {
-  { findfont dup length dict begin
-    {1 index /FID ne {def} {pop pop} ifelse} forall
-    /Encoding exch def
-    currentdict end definefont pop
-  }
-  stopped pop
-} bind def
-
-/BeginEPSF {
-  /LoutEPSFState save def
-  /dict_count countdictstack def
-  /op_count count 1 sub def
-  userdict begin
-  /showpage { } def
-  0 setgray 0 setlinecap
-  1 setlinewidth 0 setlinejoin
-  10 setmiterlimit [] 0 setdash newpath
-  /languagelevel where
-  { pop languagelevel
-    1 ne
-    { false setstrokeadjust false setoverprint
-    } if
-  } if
-} bind def
-
-/EndEPSF {
-  count op_count sub { pop } repeat
-  countdictstack dict_count sub { end } repeat
-  LoutEPSFState restore
-} bind def
-%%EndResource
-
-%%BeginResource encoding vec2
-/vec2 [
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
-/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright
-/parenleft /parenright /asterisk /plus /comma /hyphen /period /slash
-/zero /one /two /three /four /five /six /seven
-/eight /nine /colon /semicolon /less /equal /greater /question
-/at /A /B /C /D /E /F /G
-/H /I /J /K /L /M /N /O
-/P /Q /R /S /T /U /V /W
-/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore
-/quoteleft /a /b /c /d /e /f /g
-/h /i /j /k /l /m /n /o
-/p /q /r /s /t /u /v /w
-/x /y /z /braceleft /bar /braceright /asciitilde /.notdef
-/quotesinglbase /quotedblbase /ellipsis /OE /oe /quotedblleft /quotedblright /fi
-/fl /endash /emdash /bullet /dagger /daggerdbl /florin /fraction
-/dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent
-/dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron
-/space /exclamdown /cent /sterling /currency /yen /brokenbar /section
-/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron
-/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /periodcentered
-/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown
-/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla
-/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis
-/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply
-/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls
-/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla
-/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis
-/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide
-/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis
-] def
-%%EndResource
-
-%%BeginResource: procset LoutTabPrependGraphic
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/tabf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                  %
-%  PostScript @SysPrependGraphic file for @Tab     %
-%                                                  %
-%  To assist in avoiding name clashes, the names   %
-%  of all these symbols begin with "ltab".         %
-%                                                  %
-%  Jeffrey H. Kingston                             %
-%  24 September 1991                               %
-%  22 December 1992                                %
-%                                                  %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-% linewidth ltabhs -
-% horizontal single line
-/ltabhs
-{  0 0 moveto xsize 0 lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhsp -
-% horizontal single line with projecting ends
-/ltabhsp
-{  0 0 moveto xsize 0 lineto
-   setlinewidth 2 setlinecap stroke
-} def
-
-% linewidth ltabhd -
-% horizontal double line
-/ltabhd
-{  dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch 3 mul moveto xsize exch 3 mul lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhdb -
-% horizontal double line below mark
-/ltabhdb
-{  dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch -3 mul moveto xsize exch -3 mul lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhdnw -
-% horizontal double line with northwest corner
-/ltabhdnw
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   xsize exch 3 mul moveto
-   -3 mul exch 3 mul lineto
-   -3 mul 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdne -
-% horizontal double line with northeast corner
-/ltabhdne
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch 3 mul moveto
-   3 mul xsize add exch 3 mul lineto
-   3 mul xsize add 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdsw -
-% horizontal double line with southwest corner
-/ltabhdsw
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   xsize exch -3 mul moveto
-   -3 mul exch -3 mul lineto
-   -3 mul 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdse -
-% horizontal double line with southeast corner
-/ltabhdse
-{  dup dup dup dup
-   0 0 moveto xsize 0 lineto
-   0 exch -3 mul moveto
-   3 mul xsize add exch -3 mul lineto
-   3 mul xsize add 0 lineto
-   setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabvs -
-% vertical single line
-/ltabvs
-{  0 0 moveto 0 ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabvd -
-% vertical double line
-/ltabvd
-{  dup dup
-   0 0 moveto 0 ysize lineto
-   -3 mul 0 moveto -3 mul ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabvdr -
-% vertical double line to right of mark
-/ltabvdr
-{  dup dup
-   0 0 moveto 0 ysize lineto
-   3 mul 0 moveto 3 mul ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-%%EndResource
-
-%%BeginResource: procset LoutFigPrependGraphic
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/figf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                                    %
-%  PostScript @SysPrependGraphic file for @Fig  Jeffrey H. Kingston  %
-%  Version 2.0 (includes CIRCUM label)                 January 1992  %
-%                                                                    %
-%  To assist in avoiding name clashes, the names of all symbols      %
-%  defined here begin with "lfig".  However, this is not feasible    %
-%  with user-defined labels and some labels used by users.           %
-%                                                                    %
-%  <point>      is two numbers, a point.                             %
-%  <length>     is one number, a length                              %
-%  <angle>      is one number, an angle in degrees                   %
-%  <dashlength> is one number, the preferred length of a dash        %
-%                                                                    %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
-   /handleerror
-   {
-      {  /Times-Roman findfont 8 pt scalefont setfont
-	 0 setgray 4 pt 4 pt moveto
-	 $error /errorname get
-	 dup lfigdict exch known
-	 { lfigdict exch get }
-	 { 30 string cvs } ifelse
-	 show
-	 (  Command: ) show
-	 $error /command get 30 string cvs show
-      } stopped {} if
-      showpage stop
-   } def
-end
-
-% concat strings: <string> <string> lfigconcat <string>
-% must be defined outside lfigdict since used in lfigpromotelabels
-/lfigconcat
-{ 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
-
-% <string> lfigdebugprint -
-% must be defined outside lfigdict since used in arbitrary places
-% /lfigdebugprint
-% { print
-%   (;  operand stack:\n) print
-%   count copy
-%   count 2 idiv
-%   { ==
-%     (\n) print
-%   } repeat
-%   (\n) print
-% } def
-
-/lfigdict 120 dict def
-lfigdict begin
-
-% 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>
-/lfigpi 3.14159 def
-
-% arc directions
-/clockwise     false def
-/anticlockwise true  def
-
-% maximum of two numbers:  <num> <num> lfigmax <num>
-/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def
-
-% minimum of two numbers:  <num> <num> lfigmin <num>
-/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def
-
-% add two points:  <point> <point> lfigpadd <point>
-/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def
-
-% subtract first point from second:  <point> <point> lfigpsub <point>
-/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% max two points:  <point> <point> lfigpmax <point>
-/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def
-
-% min two points:  <point> <point> lfigpmin <point>
-/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def
-
-% scalar multiplication: <point> <num> lfigpmul <point>
-/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def
-
-% point at angle and distance:  <point> <length> <angle> lfigatangle <point>
-/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def
-
-% angle from one point to another:  <point> <point> lfigangle <angle>
-/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-% distance between two points:  <point> <point> lfigdistance <length>
-/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def
-
-% difference in x coords: <point> <point> lfigxdistance <length>
-/lfigxdistance { pop 3 1 roll pop sub } def
-
-%difference in y coords: <point> <point> lfigydistance <length>
-/lfigydistance { 3 1 roll pop sub exch pop } def
-
-% stroke a solid line:  <length> <dashlength> lfigsolid -
-/lfigsolid
-{  pop pop [] 0 setdash stroke
-} def
-
-% stroke a lfigdashed line:   <length> <dashlength> lfigdashed -
-/lfigdashed
-{  2 copy div 2 le 1 index 0 le or
-   {  exch pop 1 pt lfigmax [ 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 stroke
-} def
-
-% stroke a lfigcdashed line:  <length> <dashlength> lfigcdashed -
-/lfigcdashed
-{  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
-     ] exch 2 div setdash
-   } ifelse stroke
-} def
-
-% stroke a dotted line:  <length> <dashlength> lfigdotted -
-/lfigdotted
-{  2 copy le 1 index 0 le or
-   { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash }
-   { 1 index exch div ceiling div
-     [ 0 3 2 roll ] 0 setdash
-   } ifelse stroke
-} def
-
-% stroke a noline line:  <length> <dashlength> lfignoline -
-/lfignoline
-{ pop pop
-} def
-
-% painting (i.e. filling): - lfigwhite - (etc.)
-/lfignopaint		{			       } def
-/lfignochange		{ 			  fill } def
-/lfigdarkblue		{ 0.0 0.0 0.5 setrgbcolor fill } def
-/lfigblue		{ 0.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightblue		{ 0.5 0.5 1.0 setrgbcolor fill } def
-/lfigdarkgreen		{ 0.0 0.5 0.0 setrgbcolor fill } def
-/lfiggreen		{ 0.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightgreen		{ 0.5 1.0 0.5 setrgbcolor fill } def
-/lfigdarkred		{ 0.5 0.0 0.0 setrgbcolor fill } def
-/lfigred		{ 1.0 0.0 0.0 setrgbcolor fill } def
-/lfiglightred		{ 1.0 0.5 0.5 setrgbcolor fill } def
-/lfigdarkcyan		{ 0.0 0.5 0.5 setrgbcolor fill } def
-/lfigcyan		{ 0.0 1.0 1.0 setrgbcolor fill } def
-/lfiglightcyan		{ 0.5 1.0 1.0 setrgbcolor fill } def
-/lfigdarkmagenta	{ 0.5 0.0 0.5 setrgbcolor fill } def
-/lfigmagenta		{ 1.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightmagenta	{ 1.0 0.5 1.0 setrgbcolor fill } def
-/lfigdarkyellow		{ 0.5 0.5 0.0 setrgbcolor fill } def
-/lfigyellow		{ 1.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightyellow	{ 1.0 1.0 0.5 setrgbcolor fill } def
-/lfigdarkgray		{ 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggray		{ 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgray		{ 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigdarkgrey		{ 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggrey		{ 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgrey		{ 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigblack		{ 0.0 0.0 0.0 setrgbcolor fill } def
-/lfigwhite		{ 1.0 1.0 1.0 setrgbcolor fill } def
-
-% line caps (and joins, not currently used)
-/lfigbutt       0 def
-/lfiground      1 def
-/lfigprojecting 2 def
-/lfigmiter      0 def
-/lfigbevel      2 def
-
-% shape and labels of the @Box symbol
-/lfigbox
-{
-   0     0     /SW  lfigpointdef
-   xsize 0     /SE  lfigpointdef
-   xsize ysize /NE  lfigpointdef
-   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
-/lfigcurvebox
-{
-
-   xsize 0.5 mul	ysize 0.5 mul	/CTR lfigpointdef
-   xsize 0.5 mul	0		/S   lfigpointdef
-   xsize		ysize 0.5 mul	/E   lfigpointdef
-   xsize 0.5 mul	ysize		/N   lfigpointdef
-   0			ysize 0.5 mul	/W   lfigpointdef
-
-   xmark 0.293 mul		xmark 0.293 mul		  /SW  lfigpointdef
-   xsize xmark 0.293 mul sub	xmark 0.293 mul		  /SE  lfigpointdef
-   xsize xmark 0.293 mul sub	ysize xmark 0.293 mul sub /NE  lfigpointdef
-   xmark 0.293 mul		ysize xmark 0.293 mul sub /NW  lfigpointdef
-
-   [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef
-
-   xmark		0
-   xsize xmark sub	0
-   [ 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		]
-   xmark		0
-} def
-
-% shadow of the @ShadowBox symbol
-% its shape and labels are done, somewhat inaccurately, with lfigbox
-/lfigshadow
-{ 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
-/lfigsquare
-{
-   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
-} def
-
-% 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 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 Symbol
-/fnt78 { /Symbol LoutFont } def
-%%IncludeResource: font Helvetica-Oblique
-/Helvetica-Obliquefnt36 vec2 /Helvetica-Oblique LoutRecode
-/fnt36 { /Helvetica-Obliquefnt36 LoutFont } def
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-0 LoutMargSet
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-240 fnt82 1006 12961(symbol)m 1713(,)s 1820(50)s 220 fnt35
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-%%+ font Times-Italic
-%%+ font Times-Bold
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-%%+  procset LoutTabPrependGraphic
-%%+  procset LoutFigPrependGraphic
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-%%Pages: 100
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diff --git a/doc/slides/outfile.ps b/doc/slides/outfile.ps
deleted file mode 100644
index ed978e9..0000000
--- a/doc/slides/outfile.ps
+++ /dev/null
@@ -1,4470 +0,0 @@
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-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/tabf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                  %
-%  PostScript @SysPrependGraphic file for @Tab     %
-%                                                  %
-%  To assist in avoiding name clashes, the names   %
-%  of all these symbols begin with "ltab".         %
-%                                                  %
-%  Jeffrey H. Kingston                             %
-%  24 September 1991                               %
-%  22 December 1992                                %
-%                                                  %
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-{  0 0 moveto xsize 0 lineto
-   setlinewidth 0 setlinecap stroke
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-
-% linewidth ltabhsp -
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-{  0 0 moveto xsize 0 lineto
-   setlinewidth 2 setlinecap stroke
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-
-% linewidth ltabhd -
-% horizontal double line
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-{  dup dup
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-{  dup dup
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-{  dup dup dup dup
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-   3 mul xsize add exch 3 mul lineto
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-{  dup dup dup dup
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-{  dup dup dup dup
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-{  0 0 moveto 0 ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-
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-% vertical double line
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-{  dup dup
-   0 0 moveto 0 ysize lineto
-   -3 mul 0 moveto -3 mul ysize lineto
-   setlinewidth 0 setlinecap stroke
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-
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-% vertical double line to right of mark
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-{  dup dup
-   0 0 moveto 0 ysize lineto
-   3 mul 0 moveto 3 mul ysize lineto
-   setlinewidth 0 setlinecap stroke
-} def
-%%EndResource
-
-%%BeginResource: procset LoutFigPrependGraphic
-% @PrependGraphic file /usr/staff/jeff/lout.lib/include/figf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                                    %
-%  PostScript @SysPrependGraphic file for @Fig  Jeffrey H. Kingston  %
-%  Version 2.0 (includes CIRCUM label)                 January 1992  %
-%                                                                    %
-%  To assist in avoiding name clashes, the names of all symbols      %
-%  defined here begin with "lfig".  However, this is not feasible    %
-%  with user-defined labels and some labels used by users.           %
-%                                                                    %
-%  <point>      is two numbers, a point.                             %
-%  <length>     is one number, a length                              %
-%  <angle>      is one number, an angle in degrees                   %
-%  <dashlength> is one number, the preferred length of a dash        %
-%                                                                    %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
-   /handleerror
-   {
-      {  /Times-Roman findfont 8 pt scalefont setfont
-	 0 setgray 4 pt 4 pt moveto
-	 $error /errorname get
-	 dup lfigdict exch known
-	 { lfigdict exch get }
-	 { 30 string cvs } ifelse
-	 show
-	 (  Command: ) show
-	 $error /command get 30 string cvs show
-      } stopped {} if
-      showpage stop
-   } def
-end
-
-% concat strings: <string> <string> lfigconcat <string>
-% must be defined outside lfigdict since used in lfigpromotelabels
-/lfigconcat
-{ 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
-
-% <string> lfigdebugprint -
-% must be defined outside lfigdict since used in arbitrary places
-% /lfigdebugprint
-% { print
-%   (;  operand stack:\n) print
-%   count copy
-%   count 2 idiv
-%   { ==
-%     (\n) print
-%   } repeat
-%   (\n) print
-% } def
-
-/lfigdict 120 dict def
-lfigdict begin
-
-% 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>
-/lfigpi 3.14159 def
-
-% arc directions
-/clockwise     false def
-/anticlockwise true  def
-
-% maximum of two numbers:  <num> <num> lfigmax <num>
-/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def
-
-% minimum of two numbers:  <num> <num> lfigmin <num>
-/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def
-
-% add two points:  <point> <point> lfigpadd <point>
-/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def
-
-% subtract first point from second:  <point> <point> lfigpsub <point>
-/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% max two points:  <point> <point> lfigpmax <point>
-/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def
-
-% min two points:  <point> <point> lfigpmin <point>
-/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def
-
-% scalar multiplication: <point> <num> lfigpmul <point>
-/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def
-
-% point at angle and distance:  <point> <length> <angle> lfigatangle <point>
-/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def
-
-% angle from one point to another:  <point> <point> lfigangle <angle>
-/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-% distance between two points:  <point> <point> lfigdistance <length>
-/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def
-
-% difference in x coords: <point> <point> lfigxdistance <length>
-/lfigxdistance { pop 3 1 roll pop sub } def
-
-%difference in y coords: <point> <point> lfigydistance <length>
-/lfigydistance { 3 1 roll pop sub exch pop } def
-
-% stroke a solid line:  <length> <dashlength> lfigsolid -
-/lfigsolid
-{  pop pop [] 0 setdash stroke
-} def
-
-% stroke a lfigdashed line:   <length> <dashlength> lfigdashed -
-/lfigdashed
-{  2 copy div 2 le 1 index 0 le or
-   {  exch pop 1 pt lfigmax [ 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 stroke
-} def
-
-% stroke a lfigcdashed line:  <length> <dashlength> lfigcdashed -
-/lfigcdashed
-{  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
-     ] exch 2 div setdash
-   } ifelse stroke
-} def
-
-% stroke a dotted line:  <length> <dashlength> lfigdotted -
-/lfigdotted
-{  2 copy le 1 index 0 le or
-   { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash }
-   { 1 index exch div ceiling div
-     [ 0 3 2 roll ] 0 setdash
-   } ifelse stroke
-} def
-
-% stroke a noline line:  <length> <dashlength> lfignoline -
-/lfignoline
-{ pop pop
-} def
-
-% painting (i.e. filling): - lfigwhite - (etc.)
-/lfignopaint		{			       } def
-/lfignochange		{ 			  fill } def
-/lfigdarkblue		{ 0.0 0.0 0.5 setrgbcolor fill } def
-/lfigblue		{ 0.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightblue		{ 0.5 0.5 1.0 setrgbcolor fill } def
-/lfigdarkgreen		{ 0.0 0.5 0.0 setrgbcolor fill } def
-/lfiggreen		{ 0.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightgreen		{ 0.5 1.0 0.5 setrgbcolor fill } def
-/lfigdarkred		{ 0.5 0.0 0.0 setrgbcolor fill } def
-/lfigred		{ 1.0 0.0 0.0 setrgbcolor fill } def
-/lfiglightred		{ 1.0 0.5 0.5 setrgbcolor fill } def
-/lfigdarkcyan		{ 0.0 0.5 0.5 setrgbcolor fill } def
-/lfigcyan		{ 0.0 1.0 1.0 setrgbcolor fill } def
-/lfiglightcyan		{ 0.5 1.0 1.0 setrgbcolor fill } def
-/lfigdarkmagenta	{ 0.5 0.0 0.5 setrgbcolor fill } def
-/lfigmagenta		{ 1.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightmagenta	{ 1.0 0.5 1.0 setrgbcolor fill } def
-/lfigdarkyellow		{ 0.5 0.5 0.0 setrgbcolor fill } def
-/lfigyellow		{ 1.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightyellow	{ 1.0 1.0 0.5 setrgbcolor fill } def
-/lfigdarkgray		{ 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggray		{ 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgray		{ 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigdarkgrey		{ 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggrey		{ 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgrey		{ 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigblack		{ 0.0 0.0 0.0 setrgbcolor fill } def
-/lfigwhite		{ 1.0 1.0 1.0 setrgbcolor fill } def
-
-% line caps (and joins, not currently used)
-/lfigbutt       0 def
-/lfiground      1 def
-/lfigprojecting 2 def
-/lfigmiter      0 def
-/lfigbevel      2 def
-
-% shape and labels of the @Box symbol
-/lfigbox
-{
-   0     0     /SW  lfigpointdef
-   xsize 0     /SE  lfigpointdef
-   xsize ysize /NE  lfigpointdef
-   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
-/lfigcurvebox
-{
-
-   xsize 0.5 mul	ysize 0.5 mul	/CTR lfigpointdef
-   xsize 0.5 mul	0		/S   lfigpointdef
-   xsize		ysize 0.5 mul	/E   lfigpointdef
-   xsize 0.5 mul	ysize		/N   lfigpointdef
-   0			ysize 0.5 mul	/W   lfigpointdef
-
-   xmark 0.293 mul		xmark 0.293 mul		  /SW  lfigpointdef
-   xsize xmark 0.293 mul sub	xmark 0.293 mul		  /SE  lfigpointdef
-   xsize xmark 0.293 mul sub	ysize xmark 0.293 mul sub /NE  lfigpointdef
-   xmark 0.293 mul		ysize xmark 0.293 mul sub /NW  lfigpointdef
-
-   [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef
-
-   xmark		0
-   xsize xmark sub	0
-   [ 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		]
-   xmark		0
-} def
-
-% shadow of the @ShadowBox symbol
-% its shape and labels are done, somewhat inaccurately, with lfigbox
-/lfigshadow
-{ 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
-/lfigsquare
-{
-   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
-} def
-
-% 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
-
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