FRACTAL2.PS

%!PS-Adobe-2.0
%%Title: fractal2.ps
%%Creator: Rhea Myers
%%EndComments:
%%Prolog:
/defaults save def
%Basic variables and operations for redefining drawing commands
 /modify { %def
		dup 0 eq { pop 1 } if
         		rand 4294967294 div
			.75 add mul cvi 	%multiplies integer by 75-125%
     } bind def
 /2modify { %def
          2 { modify 1 2 roll } repeat  %modifies top 2 numbers on stack
     } bind def
/5modify { %def
	5 { modify 1 5 roll } repeat	%modifies top 5 numbers on stack
} bind def
/6modify { %def
	6 { modify 1 6 roll } repeat	%modifies top 6 numbers on stack
} bind def
 %Rename drawing functions
	/*moveto /moveto load def
	/*lineto /lineto load def
	/*arcto /arcto load def
	/*curveto /curveto load def
	/*arc /arc load def
	/*rmoveto /rmoveto load def
	/*rlineto /rlineto load def
	/*rcurveto /rcurveto load def
	/*arcn /arcn load def
%Redefine drawing functions
/moveto { %def
	2modify
	*moveto		
} bind def
/lineto { %def
	2modify
	*lineto
} bind def
/arcto { %def
	5modify
	*arcto
}bind def
/curveto { %def
	6modify
	*curveto
} bind def
/arc { %def
	5modify
	*curveto
} bind def
/rmoveto { %def
	2modify
	*rmoveto
} bind def
/rlineto { %def
	2modify
	*rlineto
} bind def
/rcurveto { %def
	6modify
	*rcurveto
} bind def
/arcn { %def
	5modify
	*arcn
} bind def
 %Rename text commands
/*show /show load def	%rename show
%Redefine text commands
/show { %def			%redefine show for filled characters only
		{ %forall
				/charcode exch def
			/thischar ( ) dup 0 charcode put def
			gsave
				currentpoint   %store stating point for character
				/starty exch def
				/startx exch def						
				thischar false charpath    %get character outline
				/thispath [ %cvx -simulate upath for level 1-
					exch {/ucache cvx} if
					pathbbox /setbbox cvx
					{/moveto cvx} {/lineto cvx} {/curveto cvx}
					{/closepath cvx} pathforall
				] cvx def
				/thispath load
				flattenpath pathbbox setbbox
				startx starty moveto
				thispath
				currentfont begin
				PaintType 2 eq { %ifelse
					stroke
				}{ %else
					fill
				end
				} ifelse
			grestore
			thischar stringwidth pop ( ) rmoveto
		} forall
} bind def
%%EndProlog
gsave
% --------- Variables & Procedures ---------
/depth 0 def
/maxdepth 10 def
/down { /depth depth 1 add def } def
/up { /depth depth 1 sub def } def

/DoLine { %def-print a vertical line
     0 600 rlineto currentpoint
     stroke translate 0 0 moveto
} bind def

/FractArrow { %def
     gsave
          .6 .6 scale         %reduce scale
          10 setlinewidth     %set line width     
          down DoLine         %print line
          depth maxdepth le   %depth<maximum depth?
          { %if
                135 rotate FractArrow
               -270 rotate FractArrow
          }if
          up grestore
          } bind def
% ---------- Begin Program ----------
300 300 moveto
FractArrow
stroke 
grestore
%%Trailer:
showpage
defaults restore