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% Copyright 2007-2009 by Massimo Redaelli
%
% 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/LICENSE for more details.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Bipole label positioning
%% Options
\ctikzset{label/.style = { l=#1 } }
\ctikzset{l/.code = {
\pgfkeys{/tikz/circuitikz/bipole/label/name=#1}
\ctikzsetvalof{bipole/label/unit}{}
\ifpgf@circ@siunitx
\pgf@circ@handleSI{#1}
\ifpgf@circ@siunitx@res
\edef\pgf@temp{\pgf@circ@handleSI@val}
\pgfkeyslet{/tikz/circuitikz/bipole/label/name}{\pgf@temp}
\edef\pgf@temp{\pgf@circ@handleSI@unit}
\pgfkeyslet{/tikz/circuitikz/bipole/label/unit}{\pgf@temp}
\else
\fi
\else
\fi
}}
\ctikzset{label above/.code = {
l=#1,
\circuitikzbasekey/bipole/label/position=90 }
}
\ctikzset{l^/.style = {
l=#1,
\circuitikzbasekey/bipole/label/position=90 }
}
\ctikzset{label below/.code = {
l=#1,
\circuitikzbasekey/bipole/label/position=-90 }
}
\ctikzset{l_/.style = {
l=#1,
\circuitikzbasekey/bipole/label/position=-90 }
}
\def\pgf@circ@drawlabel{
\pgfextra{
\edef\pgf@temp{\ctikzvalof{label/align}}
\def\pgf@circ@temp{straight}
}
\ifx\pgf@temp\pgf@circ@temp %straight
\pgf@circ@drawreglabel
\else
\pgfextra{\def\pgf@circ@temp{rotate}}
\ifx\pgf@temp\pgf@circ@temp %rotate
\pgf@circ@drawrotlabel
\else % smart
\pgf@circ@drawsmartlabel
\fi
\fi
}
\def\pgf@circ@drawsmartlabel{
\pgfextra{
%\pgfmathadd{\pgf@circ@direction}{360}
\pgfmathmod{\pgf@circ@direction}{90}
\edef\pgfcircmathresult{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil}
}
\ifnum \pgfcircmathresult > 20
\ifnum \pgfcircmathresult < 70 % NON quasi retto
\pgf@circ@drawrotlabel
\else
\pgf@circ@drawreglabel
\fi
\else
\pgf@circ@drawreglabel
\fi
}
%% Output routing
%% #1 - node name
\def\pgf@circ@drawrotlabel{
\pgfextra{
% calcolo rotazione label
\def\pgf@circ@temp{\ctikzvalof{bipole/label/position}} %%% àncora label
\edef\pgfcirclabrot{\pgf@circ@direction} % primo e quarto quadrante
\edef\pgfcircmathresult{\expandafter\pgf@circ@stripdecimals\pgf@circ@direction\pgf@nil}
\ifnum \pgfcircmathresult > 90 \ifnum \pgfcircmathresult < 270 % terzo e secondo
\pgfmathsubtract{\pgf@circ@direction}{180}
\edef\pgfcirclabrot{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil}
\pgfmathadd{\pgf@circ@temp}{180} %%%
\edef\pgf@circ@temp{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil} %%%
\fi\fi
\ifnum \ctikzvalof{mirror value} = -1
\pgfmathadd{\pgf@circ@temp}{180}
\edef\pgf@circ@temp{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil}
\fi
}
coordinate (labelcoor) at ($(\ctikzvalof{bipole/name})!2!(\ctikzvalof{bipole/name}.north)$)
(labelcoor) node [transform shape, rotate=\pgfcirclabrot] {\pgf@circ@finallabel{}}
}
\def\pgf@circ@drawreglabel{
\pgfextra{
\pgfmathsubtract{\pgf@circ@direction}{90}
\edef\pgf@circ@labanc{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil}
\edef\pgf@circ@temp{\ctikzvalof{bipole/label/position}} %%% àncora label
\ifnum \pgf@circ@temp < 0
\pgfmathadd{\pgf@circ@labanc}{180}
\edef\pgf@circ@labanc{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil}
\fi
\ifnum \ctikzvalof{mirror value} = -1
\pgfmathadd{\pgf@circ@labanc}{180}
\edef\pgf@circ@labanc{\expandafter\pgf@circ@stripdecimals\pgfmathresult\pgf@nil}
\fi
}
node [ anchor = \pgf@circ@labanc]
at (\ctikzvalof{bipole/name}.\pgf@circ@temp) {\pgf@circ@finallabel{}}
}
\endinput
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