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% tkz-tools-BB.tex
% Copyright 2020 Alain Matthes
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
% http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status “maintained”.
%
% The Current Maintainer of this work is Alain Matthes.
% utf8 encoding
\def\fileversion{3.06c}
\def\filedate{2020/03/18}
\typeout{2020/03/18 3.06c tkz-obj-BB.tex}
\makeatletter
%<--------------------------------------------------------------------------–>
\pgfkeys{/tkzClip/.cd,
space/.store in = {\tkz@CLI@space},
space = {}}
\def\tkzClip{\pgfutil@ifnextchar[{\tkz@Clip}{\tkz@Clip[]}}
\def\tkz@Clip[#1]{%
\pgfqkeys{/tkzClip}{#1}
\ifx\tkzutil@empty\tkz@CLI@space
\clip (\tkz@xa,\tkz@ya) rectangle (\tkz@xb,\tkz@yb);
\else
\edef\tkz@xxa{\fpeval{\tkz@xa-\tkz@CLI@space}}
\edef\tkz@yya{\fpeval{\tkz@ya-\tkz@CLI@space}}
\edef\tkz@xxb{\fpeval{\tkz@xb+\tkz@CLI@space}} % correction bug 2020
\edef\tkz@yyb{\fpeval{\tkz@yb+\tkz@CLI@space}}
\clip (\tkz@xxa,\tkz@yya) rectangle (\tkz@xxb,\tkz@yyb);
\fi
}
%<--------------------------------------------------------------------------–>
\def\tkzSetBB(#1)(#2){%
\pgfresetboundingbox
\path coordinate (tkz@SW) at (#1)
coordinate (tkz@NE) at (#2);
\path[use as bounding box](#1) rectangle (#2);
}
%<--------------------------------------------------------------------------–>
\def\tkzSaveBB{%
\path coordinate (tkz@SW) at (current bounding box.north east)
coordinate (tkz@NE) at (current bounding box.south west);
}
%<--------------------------------------------------------------------------–>
\def\tkzRestoreBB{%
\pgfresetboundingbox
\path[use as bounding box] (tkz@SW) rectangle (tkz@NE) ;
}
%<--------------------------------------------------------------------------–>
\def\tkzShowBB{\pgfutil@ifnextchar[{\tkz@ShowBB}{\tkz@ShowBB[]}}
\def\tkz@ShowBB[#1]{%
\draw[#1] (current bounding box.south west) rectangle
(current bounding box.north east);
}
%<--------------------------------------------------------------------------–>
\def\tkzClipBB{%
\clip (current bounding box.south west) rectangle
(current bounding box.north east);
}
%<--------------------------------------------------------------------------–>
\tikzset{tkzreverseclip/.style={insert path={%
(\tkz@xa,\tkz@ya) rectangle (\tkz@xb,\tkz@yb)}}}
%todo add options
%<--------------------------------------------------------------------------–>
\makeatother
\endinput
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