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% This macro source file is from the four volume series
% "TeX in Practice" by Stephan von Bechtolsheim, published
% 1993 by Springer-Verlag, New York.
% Copyright 1993 Stephan von Bechtolsheim.
% No warranty or liability is assumed.
% This macro may be copied freely if no fees other than
% media cost or shipping charges are charged and as long
% as this copyright and the following source code itself
% is not changed. Please see the series for further information.
%
% Version: 1.0
% Date: May 1, 1993
%
%
% This source code is documented in 9.2.1, p. I-314.
% Original source in file "boxit.TEX", starting line 79.
\wlog{L: "graphmac.tip" ["boxit.TEX," l. 79, p. I-314]}%
% This file DOES belong to format "texip."
\InputD{box-zero.tip}
\catcode`\@ = 11
\newdimen\@ScaleLength
\def\SetScale #1{%
\@ScaleLength = #1
}
\SetScale{1mm}
\newdimen\@LineThickness
\def\SetLineThickness #1{%
\@LineThickness = #1
}
\SetLineThickness{0.3mm}
\newbox\@GraphDataBox
\def\SetGraphDataBox #1{%
\dimen0 = #1%
\setbox\@GraphDataBox =
\hbox{%
\hskip -0.5\dimen0
\vrule height 0.5\dimen0
depth 0.5\dimen0
width 1.0\dimen0
}%
\ZeroBox{\@GraphDataBox}%
}
\SetGraphDataBox{2mm}
\def\DrawDataBox (#1,#2){%
{%
\setbox0 = \hbox{%
\hskip #1\@ScaleLength
\raise #2\@ScaleLength\copy\@GraphDataBox
}%
\ZeroBoxOut{0}%
}%
}
\def\DrawHLine (#1,#2)#3{%
{%
\setbox0 = \hbox{%
\hskip #1\@ScaleLength
\raise #2\@ScaleLength
\hbox{%
\vrule height 0.5\@LineThickness
depth 0.5\@LineThickness
width #3\@ScaleLength
}%
}%
\ZeroBoxOut{0}%
}%
}
\def\DrawVLine (#1,#2)#3{%
{%
\setbox0 = \hbox{%
\hskip #1\@ScaleLength
\hskip -0.5\@LineThickness
\raise #2\@ScaleLength
\hbox{%
\vrule height #3\@ScaleLength
depth 0pt
width \@LineThickness
}%
}%
\ZeroBoxOut{0}%
}%
}
\catcode`\@ = 12
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