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% Copyright 2006 by Till Tantau
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file doc/generic/pgf/licenses/LICENSE for more details.
\ProvidesFileRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/frontendlayer/tikz/libraries/tikzlibraryfadings.code.tex,v 1.1 2008/01/09 17:57:16 tantau Exp $
\usepgflibrary{fadings}
%
% Environments for creating fadings
%
\def\tikzfadingfrompicture{%
\begingroup%
\setbox\pgfpic=\hbox\bgroup%
\tikzpicture%
}
\def\endtikzfadingfrompicture{%
\global\let\tikz@smuggle=\tikz@fig@name%
\endtikzpicture
\egroup%
\pgfdeclarefading{\tikz@smuggle}{\box\pgfpic}%
\endgroup%
}
\let\starttikzfadingfrompicture=\tikzfadingfrompicture
\let\stopttikzfadingfrompicture=\endtikzfadingfrompicture
\def\tikzfading[#1]{%
{%
\setbox\pgfpic=\hbox{%
\tikzset{#1}%
\global\let\tikz@smuggle=\tikz@fig@name%
\tikz{%
\useasboundingbox(0,0) (100bp,100bp);
\node at (50bp,50bp) [rotate=\tikz@shade@angle]
{\pgfuseshading{\tikz@shading}};
}%
}%
\pgfdeclarefading{\tikz@smuggle}{\box\pgfpic}%
}%
}
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