rfsts.ps

生成直角Steiner树的程序包

%!PS-Adobe-3.0
%%Creator: Steiner Tree Version 3.1
%%Copyright: Copyright (c) 1998, 2001 by David M. Warme
%%LanguageLevel: 1
%%DocumentNeededResources: font Times-Roman
%%DocumentSuppliedResources: procset SteinerTreeProcs 2.0 0
%%EndComments
%%BeginProlog
%%BeginProcSet: SteinerTreeProcs 2.0 0
/LabelTerminals	0		def	% set non-zero to label terminals
/inch { 72 mul } def
/PaperWidth	8.5 inch	def
/PaperHeight	11 inch		def
/BigBoxSize	7 inch		def
/SmallBoxSize	2 inch		def
/SmallBoxHeight	SmallBoxSize	def
/SmallBoxWidth	SmallBoxSize	def
/BoxHeight	BigBoxSize	def
/BoxWidth	BigBoxSize	def
/MinX		0		def
/MaxX		1		def
/MinY		0		def
/MaxY		1		def
/BoxMode	0		def	% (0 ==> big plot, 1 ==> small plots)
/SmallBoxCount	0		def
/TermRadius	1 32 div inch	def
/LineWidth	currentlinewidth	def

% Define the clipping region to be the inside edge of the box.

/ClipHeight	BigBoxSize LineWidth sub def
/ClipWidth	ClipHeight def

% Define the plotting region so that points plotted at the extremes will
% exactly meet the edge of the clipping region.  (Reduce by the terminal
% radius on each side.)

/PlotHeight	ClipHeight TermRadius 2 mul sub def
/PlotWidth	ClipWidth  TermRadius 2 mul sub	def
/XlateX { MinX sub MaxX MinX sub div PlotWidth mul } def
/XlateY { MinY sub MaxY MinY sub div PlotHeight mul } def
/XlateXY { exch XlateX exch XlateY } def
/Dup2 { dup 3 -1 roll dup 4 1 roll exch } def
/Swap2 { 4 2 roll } def
% define the two fonts we will use:
%	- one for numbering the terminals
%	- one for printing the plot's title
/TermNumPointsize	8	def
/TitlePointsize		15	def
/TermNumFont
	/Times-Roman findfont TermNumPointsize scalefont
def
/UseTermNumFont { TermNumFont setfont } def
/TitleFont
	/Times-Roman findfont TitlePointsize scalefont
def
/UseTitleFont { TitleFont setfont } def
/DefineTerminals {
	/NumTerms exch def
	/TermX NumTerms array def
	/TermY NumTerms array def
	/TermIndex 0 def
} def
/DT {
	TermY TermIndex 3 -1 roll put
	TermX TermIndex 3 -1 roll put
	/TermIndex TermIndex 1 add def
} def
/SetAxes {	% minx maxx miny maxy
	/MaxY exch def
	/MinY exch def
	/MaxX exch def
	/MinX exch def
} def
/PTString	12 string	def
/Plot_Terminals {
	LabelTerminals 0 eq {
		% Display terminals, no labels
		0 1 NumTerms 1 sub {			% i
			dup				% i i
			TermX exch get exch		% x i
			TermY exch get
			newpath
			XlateXY
			TermRadius 0 360 arc fill
		} for
	}
	{	% Display terminals, with labels
		0 1 NumTerms 1 sub {			% i
			dup				% i i
			PTString cvs exch dup		% str i i
			TermX exch get exch		% str x i
			TermY exch get			% str x y
			newpath
			XlateXY
			Dup2
			TermRadius 0 360 arc fill
			moveto TermRadius 3 mul dup neg rmoveto
			UseTermNumFont
			show
		} for
	} ifelse
} def
% n T ==> Xn Yn, get coordinates of terminal n.
/T {
	dup
	TermX exch get exch
	TermY exch get
} def
% Draw a line segment.
/S {
	newpath
	XlateXY
	moveto
	XlateXY
	lineto
	stroke
} def
% Draw a corner.  First point is incident to vertical segment.
% Second point is incident to horizontal segment.
/C {	% x1 y1 x2 y2
	newpath
	% x1 y1 x2 y2 -> x1 y1 x1 y2 x2 y2
	4 -1 roll dup 5 1 roll exch dup 4 -1 roll exch
	XlateXY
	moveto
	XlateXY
	lineto
	XlateXY
	lineto
	stroke
} def
/BeginPlot {
	FlushSmallPlot
	gsave
	PaperWidth BoxWidth sub 2 div
	 PaperHeight BoxHeight sub 2 div
	  translate
	newpath
	0 0 moveto
	BoxWidth 0 lineto
	BoxWidth BoxHeight lineto
	0 BoxHeight lineto
	closepath
	stroke
	gsave
	% establish a clipping region at the inside edge of the box
	LineWidth 2 div dup moveto
	ClipWidth 0 rlineto
	0 ClipHeight rlineto
	ClipWidth neg 0 rlineto
	closepath
	clip
	% establish the origin for the plotting region
	LineWidth 2 div TermRadius add
	 dup
	  translate
} def
/EndPlot {
	grestore
	newpath
	UseTitleFont
	0 0 moveto
		dup stringwidth pop BigBoxSize exch sub 2 div
		TitlePointsize -2 mul
	rmoveto
	show
	grestore
	showpage
} def
/BeginSmallPlot {
	gsave
	.75 inch SmallBoxCount 3 mod SmallBoxWidth .5 inch add mul add
	  .75 inch 3 SmallBoxCount 3 idiv sub SmallBoxHeight .5 inch add mul add
	    translate
	SmallBoxWidth BoxWidth div
	 SmallBoxHeight BoxHeight div
	  scale
	newpath
	0 0 moveto
	BoxWidth 0 lineto
	BoxWidth BoxHeight lineto
	0 BoxHeight lineto
	closepath
	stroke
	gsave
	% establish a clipping region at the inside edge of the box
	LineWidth 2 div dup moveto
	ClipWidth 0 rlineto
	0 ClipHeight rlineto
	ClipWidth neg 0 rlineto
	closepath
	clip
	% establish the origin for the plotting region
	LineWidth 2 div TermRadius add
	 dup
	  translate
} def
/EndSmallPlot2 {
	grestore
	newpath
	UseTitleFont
	0 0 moveto
		dup stringwidth pop BigBoxSize exch sub 2 div
		TitlePointsize -2 mul
	rmoveto
	show
	grestore
	/SmallBoxCount SmallBoxCount 1 add def
	SmallBoxCount 12 ge {
		FlushSmallPlot
	} if
} def
/FlushSmallPlot {
	SmallBoxCount 0 gt {
		showpage
		/SmallBoxCount	0 def
	} if
} def
/PT {
	dup				% i i
	TermX exch get exch		% x i
	TermY exch get
	newpath
	XlateXY
	TermRadius 0 360 arc fill
} def
%%EndProcSet
%%EndProlog

 % Phase 1: 0.00 seconds

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%%EndSetup

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%%Page: 2 2
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%%Page: 3 3
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