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%!PS-Adobe-3.0
%
% ********************************************************************************
%
% Figure "gratr" from the Moire Demonstration Kit accompanying 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 14, 1999
%
% ********************************************************************************
%
% A red periodic line grating
%
% The adjustable parameters are as follows:
% 
% theta1 - the grating angle, in degrees.
% p1 - the period of the grating along its main axis, in centiinches.
% len - the length of the grating along its main axis, in centiinches.
% wid - the width of the grating (= its lines length), in centiinches.
% lwidth - the linewidth, in centiinches.
%
% ********************************************************************************
%





% ************ Adjustable parameters for the grating:


/theta1 90 def		% angle of the grating in degrees

/p1 3 def		% period of the grating along its main axis in centiinches

/len 800 def		% length of the grating along its main axis in centiinches

/wid 700 def		% width of the grating (= its lines length) in centiinches

/lwidth 1.0 def		% linewidth in centiinches





% ************ Draw the grating:

/inch {72 mul} def

/centiinch {0.72 mul} def

0.2 inch 3.0 inch translate


/len2 len 2 div def
/wid2 wid 2 div def
lwidth centiinch setlinewidth

gsave
0 1 1 0 setcmykcolor
4 inch 4.0 inch translate
theta1 rotate
newpath
0 p1 len		% draw lines
{centiinch len2 p1 div round p1 mul centiinch sub wid2 centiinch neg moveto
0 centiinch wid centiinch rlineto} for
stroke
grestore



gsave
1.75 inch -1.0 inch translate
0.5 inch 0 inch moveto
/Times-Roman findfont
12 scalefont setfont
(Figure  ) show
/Times-Bold findfont
12 scalefont setfont
(gratr) show
/Times-Roman findfont
12 scalefont setfont
(  from the Moire) show
-0.06 inch 0 inch rmoveto
(\302 Demonstration Kit) show
0.1 inch -0.25 inch moveto
(accompanying 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
0.1 inch -0.5 inch moveto
(by I. Amidror, published by Kluwer Academic Publishers, 1999.) show
grestore




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