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%!PS-Adobe-3.0
%
% ********************************************************************************
%
% Figure C.6 from the book: "The Theory of the Moire Phenomenon"
% by I. Amidror, published by Kluwer Academic Publishers, 1999.
%
%		* * *  Copyright (c) 1999 EPFL  * * *
%
% Author: I. Amidror
%
% Modified: June 9, 1999
%
% ********************************************************************************
%
% An auto moire:
%
% The grating parameters are as follows:
% 
% theta1 - the grating angles, in degrees.
% p1 - the respective grating periods, in deciinches.
% len - the grating length in centiinches
% wid - the grating width in centiinches
%
% ********************************************************************************
%


/inch {72 mul} def
/centiinch {0.72 mul} def
0.6 centiinch setlinewidth


/len 130 def		% grating length in centiinches
/wid 130 def		% grating width in centiinches
/len2 len 2 div def
/wid2 wid 2 div def



1.6 inch 2.5 inch translate
gsave



% ******************************** draw left image:

/theta1 45 def		% angle of the grating

/rot 0 def		% general rotation to prevent printer artifacts

/p1 2.11 def		% period of the grating



% Draw grating:
gsave
1 inch 5.2 inch translate
theta1 rot add rotate
newpath
0 p1 len		% draw lines
{centiinch len2 centiinch sub -1 inch moveto
0 centiinch wid centiinch rlineto} for
stroke
grestore



% ******************************** draw right image:

/theta1 42.2 def	% angle of the grating

/rot 0 def		% general rotation to prevent printer artifacts

/p1 2.142 def		% period of the grating



% Draw grating:
gsave
3.6 inch 5.2 inch translate
theta1 rot add rotate
newpath
0 p1 len		% draw lines
{centiinch len2 centiinch sub -1 inch moveto
0 centiinch wid centiinch rlineto} for
stroke
grestore


gsave
0.6 inch 4 inch translate
/Times-Roman findfont
12 scalefont setfont
0 inch 0 inch moveto
((a)) show
2.6 inch 0 inch moveto
((b)) show
grestore


gsave
0.35 inch 0 inch translate
0 inch 0 inch moveto
/Times-Bold findfont
12 scalefont setfont
(Figure C.6) show
/Times-Roman findfont
12 scalefont setfont
( from the book: ) show
/Times-Italic findfont
12 scalefont setfont
(The Theory of the Moire) show
-0.06 inch 0 inch rmoveto
(\302 Phenomenon) show
/Times-Roman findfont
12 scalefont setfont
0 inch -0.25 inch moveto
(  by I. Amidror, published by Kluwer Academic Publishers, 1999.) show
grestore


grestore

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