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% Copyright 2022 by Qrrbrbirlbel
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Free Documentation License.
%
\usepgflibrary{ext.transformations.mirror}
\tikzset{
mirror/.code={%
\pgfutil@in@{--}{#1}%
\ifpgfutil@in@
\tikzext@trans@mirror#1\tikz@stop
\else
\tikz@addtransform{\tikz@scan@one@point\pgfqtransformmirror#1\relax}%
\fi},
ymirror/.code={\pgfutil@ifnextchar(\tikzext@trans@ymirror@coordinate\tikzext@trans@ymirror@simple#1\tikz@stop},
xmirror/.code={\pgfutil@ifnextchar(\tikzext@trans@xmirror@coordinate\tikzext@trans@xmirror@simple#1\tikz@stop},
mirror x/.code={%
\pgfextract@process\tikz@temp{\tikz@scan@one@point\pgfutil@firstofone#1\relax}%
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformmirror
{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfpointadd{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfqpointxy{0}{1}}}}}%
\tikz@marshal
},
mirror y/.code={%
\pgfextract@process\tikz@temp{\tikz@scan@one@point\pgfutil@firstofone#1\relax}%
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformmirror
{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfpointadd{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfqpointxy{1}{0}}}}}%
\tikz@marshal
},
mirror/.value required,
ymirror/.default=+0pt,
xmirror/.default=+0pt,
mirror x/.default={(0,0)},
mirror y/.default={(0,0)}%
}
\def\tikzext@trans@mirror#1--#2\tikz@stop{%
\tikz@addtransform{%
\pgftransformmirror{\tikz@scan@one@point\pgfutil@firstofone#1\relax}
{\tikz@scan@one@point\pgfutil@firstofone#2\relax}}}
\def\tikzext@trans@xmirror@simple#1\tikz@stop{\tikz@addtransform{\pgftransformxmirror{#1}}}
\def\tikzext@trans@ymirror@simple#1\tikz@stop{\tikz@addtransform{\pgftransformymirror{#1}}}
\def\tikzext@trans@xmirror@coordinate#1\tikz@stop{%
\tikz@scan@one@point\pgfutil@firstofone#1\relax
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformxmirror{+\the\pgf@x}%
}%
}%
\tikz@marshal
}
\def\tikzext@trans@ymirror@coordinate#1\tikz@stop{%
\tikz@scan@one@point\pgfutil@firstofone#1\relax
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformymirror{+\the\pgf@y}%
}%
}%
\tikz@marshal
}
\tikzset{
Mirror/.code={%
\pgfutil@in@{--}{#1}%
\ifpgfutil@in@
\tikzext@trans@Mirror#1\tikz@stop
\else
\tikz@addtransform{\tikz@scan@one@point\pgfqtransformMirror#1\relax}%
\fi},
yMirror/.code={\pgfutil@ifnextchar(\tikzext@trans@yMirror@coordinate\tikzext@trans@yMirror@simple#1\tikz@stop},
xMirror/.code={\pgfutil@ifnextchar(\tikzext@trans@xMirror@coordinate\tikzext@trans@xMirror@simple#1\tikz@stop},
Mirror x/.code={%
\pgfextract@process\tikz@temp{\tikz@scan@one@point\pgfutil@firstofone#1\relax}%
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformMirror
{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfpointadd{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfqpointxy{0}{1}}}}}%
\tikz@marshal
},
Mirror y/.code={%
\pgfextract@process\tikz@temp{\tikz@scan@one@point\pgfutil@firstofone#1\relax}%
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformMirror
{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfpointadd{\expandafter\noexpand\tikz@temp}
{\noexpand\pgfqpointxy{1}{0}}}}}%
\tikz@marshal
},
Mirror/.value required,
yMirror/.default=+0pt,
xMirror/.default=+0pt,
Mirror x/.default={(0,0)},
Mirror y/.default={(0,0)}%
}
\def\tikzext@trans@Mirror#1--#2\tikz@stop{%
\tikz@addtransform{%
\pgftransformMirror{\tikz@scan@one@point\pgfutil@firstofone#1\relax}
{\tikz@scan@one@point\pgfutil@firstofone#2\relax}}}
\def\tikzext@trans@xMirror@simple#1\tikz@stop{\tikz@addtransform{\pgftransformxMirror{#1}}}
\def\tikzext@trans@yMirror@simple#1\tikz@stop{\tikz@addtransform{\pgftransformyMirror{#1}}}
\def\tikzext@trans@xMirror@coordinate#1\tikz@stop{%
\tikz@scan@one@point\pgfutil@firstofone#1\relax
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformxMirror{+\the\pgf@x}%
}%
}%
\tikz@marshal
}
\def\tikzext@trans@yMirror@coordinate#1\tikz@stop{%
\tikz@scan@one@point\pgfutil@firstofone#1\relax
\edef\tikz@marshal{%
\noexpand\tikz@addtransform{%
\noexpand\pgftransformyMirror{+\the\pgf@y}%
}%
}%
\tikz@marshal
}
\endinput
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