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TeX 1995 July
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TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO
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EOT2.1#2.sea.bin
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DVItoPS.ps
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1993-07-10
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%!
% This is the prolog used by OzTeX 1.6 to convert a DVI file into PostScript.
% Set dev to "LW" if LaserWriter, "LINO" if Linotronic, or "?" if unknown:
/dev (?) def
statusdict /product known {
statusdict /product get
(LaserWriter) anchorsearch { pop pop /dev (LW) def } { pop } ifelse
statusdict /product get
(Linotype) anchorsearch { pop pop /dev (LINO) def } { pop } ifelse
} if
/@setup { % set up OzTeX's coordinate system
/res exch def % desired resolution (defines dots per inch)
/voff exch def % vertical offset (in dots)
/hoff exch def % horizontal offset (in dots)
/ht exch def % paper height (in dots)
/wd exch def % paper width (in dots)
/land wd ht gt def % print in landscape orientation?
/oshift ht res sub neg def % vertical shift (in dots) for portrait origin
dev (?) eq % unknown device?
{ land
{ % landscape
90 rotate % rotate axes 90deg anticlockwise
72 res div dup neg scale % units now device dots
res dup translate % move to TeX origin
voff neg hoff translate % adjust TeX origin if necessary
}
{ % portrait
72 res div dup neg scale % units now device dots
res oshift translate % move to TeX origin
hoff voff translate % adjust TeX origin if necessary
} ifelse
} if
dev (LW) eq % LaserWriter?
{
% Display model and version in OzTeX window:
% (\rmodel = ) print statusdict /product get print
% (\rversion = ) print version print (\r) print flush
land
{ % landscape
90 rotate % rotate axes 90deg anticlockwise
72 res div dup neg scale % units now device dots
res dup translate % move to TeX origin
voff neg hoff translate % adjust TeX origin if necessary
% Model-specific adjustments to origin can be made here:
statusdict /product get (LaserWriter) eq
{ -90 0 translate % move left a bit
}
{ statusdict /product get (LaserWriter Plus) eq
{ -32 0 translate % move left a bit
}
{ statusdict /product get (LaserWriter II NTX) eq
{ -20 0 translate % move left a bit
}
{ statusdict /product get (LaserWriter IIg) eq
{ 0 0 translate
}
{ % some other model
0 0 translate
}
ifelse } ifelse } ifelse } ifelse
}
{ % portrait
72 res div dup neg scale % units now device dots
res oshift translate % move to TeX origin
hoff voff translate % adjust TeX origin if necessary
% Model-specific adjustments to origin can be made here:
statusdict /product get (LaserWriter) eq
{ 0 22 translate % move down a bit
}
{ statusdict /product get (LaserWriter Plus) eq
{ 0 0 translate
}
{ statusdict /product get (LaserWriter II NTX) eq
{ 0 14 translate % move down a bit
}
{ statusdict /product get (LaserWriter IIg) eq
{ 0 0 translate
}
{ % some other model
0 0 translate
}
ifelse } ifelse } ifelse } ifelse
} ifelse
% The matrix produced above can cause scaling problems,
% so round each matrix value to nearest integer and use setmatrix:
matrix currentmatrix
dup dup 0 get round cvi 0 exch put
dup dup 1 get round cvi 1 exch put
dup dup 2 get round cvi 2 exch put
dup dup 3 get round cvi 3 exch put
dup dup 4 get round cvi 4 exch put
dup dup 5 get round cvi 5 exch put
setmatrix
% Display new matrix in OzTeX window:
% matrix currentmatrix
% dup 0 get ( ) cvs print ( ) print
% dup 1 get ( ) cvs print ( ) print
% dup 2 get ( ) cvs print ( ) print
% dup 3 get ( ) cvs print ( ) print
% dup 4 get ( ) cvs print ( ) print
% dup 5 get ( ) cvs print (\r) print flush
% pop
} if
dev (LINO) eq % Linotronic?
{ land
{ % landscape
90 rotate % rotate axes 90deg anticlockwise
72 res div dup neg scale % units now device dots
res dup translate % move to TeX origin
voff neg hoff translate % adjust TeX origin if necessary
}
{ % portrait
newpath clippath pathbbox % push LLx LLy URx URy (URy = ht in pts)
/paperht exch 72 div def % paper height in inches
pop pop pop % remove URx LLy LLx
72 res div dup neg scale % units now device dots
res paperht res mul neg res add
translate % move to TeX origin
hoff voff translate % adjust TeX origin if necessary
} ifelse
} if
% Some fine-tuning of the code used to draw a rule is necessary.
% Use page 18 in nasty.dvi to check results:
dev (LW) eq % LaserWriter?
{ version cvr 38.0 le % early model?
{ land
{ % landscape
/r % set a wd by ht rule at h,v
{ newpath
moveto % move to h,v
/ht exch 1 sub def % reduce height by 1
/wd exch 1 sub def % ditto for width
wd 0 rlineto
0 ht neg rlineto
wd neg 0 rlineto
fill
} bind def
}
{ % portrait
/r % set a wd by ht rule at h,v
{ newpath
1 add moveto % move to h,v+1
/ht exch 1 sub def % reduce height by 1
/wd exch 1 sub def % ditto for width
wd 0 rlineto
0 ht neg rlineto
wd neg 0 rlineto
fill
} bind def
} ifelse
} if
version cvr 2000.0 gt % IIg or newer model?
{
/r % set a wd by ht rule at h,v
{ newpath
1 add moveto % move to h,v+1
/ht exch def % set height
/wd exch def % set width
wd 0 rlineto
0 ht neg rlineto
wd neg 0 rlineto
fill
} bind def
} if
} if
/mtrx 6 array def
mtrx currentmatrix pop % save our new transformation matrix
} def % end of @setup
% @saveVM and @restoreVM are only used if we are conserving VM
% by downloading font bitmaps more often:
/@saveVM {/prefontVM save def} def
/@restoreVM {prefontVM restore} def
/@newfont % create new font dict
{ /maxchcode exch def
/fontid exch def
fontid 7 dict def
fontid load begin
/FontType 3 def
/FontMatrix [1 0 0 -1 0 0] def % -1 because y scale is negative
/FontBBox [0 0 1 1] def
/BitMaps maxchcode 1 add array def
/BuildChar {CharBuilder} def
/Encoding 256 array def
0 1 255 {Encoding exch /.notdef put} for
% The above 2 lines fix a definefont error that occurs on some printers
% (eg. the LaserWriter NTX-J). If you have an old LaserWriter and
% now get VM errors then you might want to revert to the old code:
%
% /Encoding maxchcode 1 add array def
% 0 1 maxchcode {Encoding exch /.notdef put} for
end
fontid fontid load definefont pop
} def
% The char data, a bitmap descriptor, is an array with 6 elements;
% element 0 is either a hex string or an array of hex strings (the latter
% is required for large PK chars with more than 65535 hex digits):
/ch-image {ch-data 0 get dup type /stringtype ne {N get /N N 1 add def} if
} def % hex string
/ch-width {ch-data 1 get} def % the number of pixels across
/ch-height {ch-data 2 get} def % the number of pixels tall
/ch-xoff {ch-data 3 get} def % number of pixels to left of origin
/ch-yoff {ch-data 4 get} def % number of pixels below origin
/ch-advw {ch-data 5 get} def % advance width
% The following character builder looks up the char data in the BitMaps array
% and paints the character:
/CharBuilder % image one char
{ /ch-code exch def % save the char code
/font-dict exch def % and the font dict
/ch-data font-dict /BitMaps get
ch-code get def
/N 0 def
ch-advw 0
ch-xoff neg ch-height ch-yoff sub 1 sub neg % -xo , -(ht-yo-1)
ch-width ch-xoff sub 1 sub ch-yoff % (wd-xo-1) , yo
setcachedevice
ch-width ch-height true
[1 0 0 -1 ch-xoff ch-yoff] % bitmap sent top to bottom
{ch-image}
imagemask
} def
/sf {setfont} def % set current font
/dc % define new character
{ /ch-code exch def
/ch-data exch def
% The following code should be enabled if you have an old LaserWriter.
% It attempts to overcome a bug that causes the printer to crash
% and print a test page rather then report a VMerror.
%
% vmstatus % returns: savelevel vmused vmmax
% 10000 sub gt % is vmused > (vmmax-10000)?
% { pop VMERROR } % causes error message (avoiding crash)
% { pop } % pop savelevel
% ifelse
currentfont /BitMaps get ch-code ch-data put
currentfont /Encoding get ch-code
dup ( ) cvs cvn put % generate unique name
} bind def
/@bop0 {pop} def % begin DVI page n
/@bop1 % begin setting DVI page n
{ pop % throw away page number
initgraphics % start with a clean slate
mtrx setmatrix % switch to our TeX coordinate system
/prepageVM save def % save state of VM at start of page
} def
/@eop % end DVI page n
{ pop % throw away page number
prepageVM restore % restore VM to state at start of page
showpage
} def
/@end { } def % end of file
% h and s are used to typeset downloaded bitmap fonts:
/h {exch 0 rmoveto show} bind def % move right by dh and show (...)
/s {3 1 roll moveto show} bind def % move to h,v and show (...)
% H and S are used to typeset PostScript fonts.
% We can't use relative horizontal positioning because the advance widths in
% a PostScript font are not integers and rounding errors would accumulate:
/H {exch v moveto show} bind def % move to h,v and show (...)
/S % ditto, and save v position
{ 3 1 roll
1 add % v+1 to match baseline of bitmap fonts
dup /v exch def
moveto show
} bind def
% r is used to typeset a rule:
/r % set a wd by ht rule at h,v
{ newpath
moveto % move to h,v
/ht exch 1 sub def % reduce height by 1
/wd exch 1 sub def % ditto for width
wd 0 rlineto
0 ht neg rlineto
wd neg 0 rlineto
fill
} bind def
% Following procedures are invoked as the result of \special{file}.
% We change all scaling and graphics back to defaults, but shift the origin
% to the current position on the page:
/@bsp
{ /vmag exch def % vertical scaling
/hmag exch def % horizontal scaling
moveto % move to h,v
gsave
/prespecialVM save def % save showpage, TeX procedures etc.
currentpoint transform
initgraphics itransform translate
hmag vmag scale
land { 90 rotate } if % rotate axes if landscape
/showpage { } def % user does not have to remove showpage
} bind def
/@esp
{ prespecialVM restore % restore saved showpage value etc.
grestore
} bind def
% Following procedures are invoked as the result of \special{epsf=file}.
% Note that @bepsf and @eepsf are currently identical to @bsp and @esp
% but it is a good idea to allow for future changes:
/@bepsf
{ /vmag exch def % vertical scaling
/hmag exch def % horizontal scaling
moveto % move to h,v
gsave
/prespecialVM save def % save showpage, TeX procedures etc.
currentpoint transform
initgraphics itransform translate
hmag vmag scale
land { 90 rotate } if % rotate axes if landscape
/showpage { } def % user does not have to remove showpage
} bind def
/@eepsf
{ prespecialVM restore % restore saved showpage value etc.
grestore
} bind def
% Here is the code to handle bitmaps generated by PICT/PNTG \specials:
/@bitmap
{ /vmag exch def % vertical scaling
/hmag exch def % horizontal scaling
/vres exch def % vertical resolution of bitmap
/hres exch def % horizontal resolution of bitmap
/ht exch def % height
/wd exch def % width
/hexstring ht string def
gsave
1 add translate % set origin to h,v+1
res hres div wd mul hmag mul
res vres div ht mul vmag mul neg scale
wd ht true
[ wd 0 0 ht neg 0 ht ]
{ currentfile hexstring readhexstring pop }
imagemask
grestore
} def
% Here are the definitions needed to handle PostScript fonts:
/sp % scaled pts to device dots
{ 16#10000 div % scaled pts to pts
res mul 72.27 div % pts to device dots
} bind def
/PSfont
{ /fontname exch def % printer font name
/dotsize exch def % scaled dot size
/done false def
% check if fontname is one of the special printer font names
% appearing in the current config file's PS font list:
fontname /Slanted-Times-Roman eq
{ /Times-Roman findfont [1 0 .167 -1 0 0] makefont
dotsize scalefont setfont
/done true def
} if
% other nice tricks can be included here if the appropriate PS font
% specification is added to the current config file:
% fontname /Extended-Times-Roman eq
% { /Times-Roman findfont [1.2 0 0 -1 0 0] makefont
% dotsize scalefont setfont
% /done true def
% } if
done not
{ fontname findfont [1 0 0 -1 0 0] makefont
dotsize scalefont setfont
} if
} bind def
% count 0 gt
% { (\r *** Bug in DVItoPS.ps: stuff left on stack *** \r) print flush
% } if
% --------------- end of OzTeX's prolog ---------------