posttek.ps

这是一个同样来自贝尔实验室的和UNIX有着渊源的操作系统, 其简洁的设计和实现易于我们学习和理解

%
% Version 3.3.2 prologue for tektronix 4014 files.
%

/#copies 1 store
/aspectratio 1 def
/fixlinewidth true def
/font /Courier def
/formsperpage 1 def
/landscape true def
/linewidth 0 def
/magnification 1 def
/margin 10 def
/orientation 0 def
/rotation 1 def
/screenheight 3120 def
/screenwidth 4150 def
/spotsize 1 def
/xoffset 0 def
/yoffset 0 def

/useclippath true def
/pagebbox [0 0 612 792] def

/inch {72 mul} bind def
/min {2 copy gt {exch} if pop} bind def

/kshow {kshow} bind def		% so later references don't bind

/setup {
	counttomark 2 idiv {def} repeat pop

	landscape {/orientation 90 orientation add def} if

	pagedimensions
	/scaling
		height margin sub screenheight div
		width margin sub screenwidth div
	min def
	xcenter ycenter translate
	orientation rotation mul rotate
	xoffset inch yoffset inch translate
	magnification dup aspectratio mul scale
	scaling scaling scale
	screenwidth 2 div neg screenheight 2 div neg translate

	tietodevicespace
	linewidth scaling div setlinewidth
	1 setlinecap
	newpath
} def

/pagedimensions {
	useclippath {
		/pagebbox [clippath pathbbox newpath] def
	} if
	pagebbox aload pop
	4 -1 roll exch 4 1 roll 4 copy
	landscape {4 2 roll} if
	sub /width exch def
	sub /height exch def
	add 2 div /xcenter exch def
	add 2 div /ycenter exch def
	userdict /gotpagebbox true put
} def

/pagesetup {/page exch def} bind def

/tietodevicespace {
	fixlinewidth linewidth 0 gt and linewidth 1 lt and {
		/moveto {
			2 copy /Y exch def /X exch def
			transform round exch round exch itransform
			moveto
		} bind def
		/lineto {
			2 copy /Y exch def /X exch def
			transform round exch round exch itransform
			lineto
		} bind def
		/rlineto {Y add exch X add exch lineto} bind def
		/v V 0 get bind def
	} if
} def

/V [{moveto counttomark 2 idiv {rlineto} repeat stroke}] def
/v V 0 get bind def
/p {newpath spotsize 0 360 arc fill} bind def

/l {{scaling div} forall counttomark array astore 0 setdash} bind def
/w {linewidth 0 eq {.3} {linewidth} ifelse mul linewidth add scaling div setlinewidth} bind def
/i {3 mul 4 sub -100 div mul .5 add /spotsize exch def} bind def

/f {/charwidth exch def font findfont charwidth .6 div scalefont setfont} bind def

/t {
	3 1 roll moveto
	currentpoint {
		pop pop
		exch charwidth add exch
		moveto currentpoint
	} 4 -1 roll kshow
	pop pop
} bind def

/done {/lastpage where {pop lastpage} if} def