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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.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Voltage management
+
+
+\ctikzset{v^>/.style = {
+ v = #1,
+ \circuitikzbasekey/bipole/voltage/direction = forward,
+ \circuitikzbasekey/bipole/voltage/position = above
+ }
+}
+
+\ctikzset{v^</.style = {
+ v = #1,
+ \circuitikzbasekey/bipole/voltage/direction = backward,
+ \circuitikzbasekey/bipole/voltage/position = above
+ }
+}
+
+\ctikzset{v_>/.style = {
+ v = #1,
+ \circuitikzbasekey/bipole/voltage/direction = forward,
+ \circuitikzbasekey/bipole/voltage/position = below
+ }
+}
+
+\ctikzset{v_</.style = {
+ v = #1,
+ \circuitikzbasekey/bipole/voltage/direction = backward,
+ \circuitikzbasekey/bipole/voltage/position = below
+ }
+}
+
+
+% Default position varies whether the component is a voltage source
+% or not
+\ctikzset{v/.code = {
+ \ifpgf@circuit@bipole@isvoltage
+ \pgfkeys{\circuitikzbasekey/bipole/voltage/position=above,
+ \circuitikzbasekey/bipole/voltage/direction=forward}
+ \else
+ \pgfkeys{\circuitikzbasekey/bipole/voltage/position=below,
+ \circuitikzbasekey/bipole/voltage/direction=backward}
+ \fi
+ \pgfkeys{/tikz/circuitikz/bipole/voltage/label/name=#1}
+ \ctikzsetvalof{bipole/voltage/label/unit}{}
+ \ifpgf@circ@siunitx
+ \pgf@circ@handleSI{#1}
+ \ifpgf@circ@siunitx@res
+ \edef\pgf@temp{\pgf@circ@handleSI@val}
+ \pgfkeyslet{/tikz/circuitikz/bipole/voltage/label/name}{\pgf@temp}
+ \edef\pgf@temp{\pgf@circ@handleSI@unit}
+ \pgfkeyslet{/tikz/circuitikz/bipole/voltage/label/unit}{\pgf@temp}
+ \else
+ \fi
+ \else
+ \fi
+ }
+}
+
+\ctikzset{v_/.style = {v = #1, \circuitikzbasekey/bipole/voltage/position = below} }
+\ctikzset{v^/.style = {v = #1, \circuitikzbasekey/bipole/voltage/position = above} }
+\ctikzset{v>/.style = {v = #1, \circuitikzbasekey/bipole/voltage/direction = forward} }
+\ctikzset{v</.style = {v = #1, \circuitikzbasekey/bipole/voltage/direction = backward} }
+
+
+%% Output routine for generic bipoles
+
+\def\pgf@circ@drawvoltagegeneric{
+ \pgfextra{
+ \ifnum \ctikzvalof{mirror value}=-1
+ \ifpgf@circuit@bipole@voltage@below\pgf@circuit@bipole@voltage@belowfalse\else\pgf@circuit@bipole@voltage@belowtrue\fi
+ \fi
+
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@voltage@angle{90}
+ \else
+ \def\pgf@circ@voltage@angle{-90}
+ \fi
+
+ \edef\pgf@temp{/tikz/circuitikz/bipoles/\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}/voltage/distance from node}
+ \pgfkeysifdefined{\pgf@temp}
+ { \edef\distacefromnode{\ctikzvalof{bipoles/\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}/voltage/distance from node}} }
+ { \edef\distacefromnode{\ctikzvalof{voltage/distance from node}} }
+ \edef\pgf@temp{/tikz/circuitikz/bipoles/\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}/voltage/bump b}
+ \pgfkeysifdefined{\pgf@temp}
+ { \edef\bumpb{\ctikzvalof{bipoles/\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}/voltage/bump b}} }
+ { \edef\bumpb{\ctikzvalof{voltage/bump b}} }
+ }
+
+ coordinate (pgfcirc@mid) at ($(\tikztostart) ! \distacefromnode ! (\ctikzvalof{bipole/name}.left)$)
+ coordinate (pgfcirc@Vfrom) at ($(pgfcirc@mid) ! -\ctikzvalof{voltage/distance from line}\pgf@circ@Rlen ! \pgf@circ@voltage@angle:(\ctikzvalof{bipole/name}.left)$)
+
+ coordinate (pgfcirc@mid) at ($(\tikztotarget) ! \distacefromnode ! (\ctikzvalof{bipole/name}.right)$)
+ coordinate (pgfcirc@Vto) at ($(pgfcirc@mid) ! \ctikzvalof{voltage/distance from line}\pgf@circ@Rlen ! \pgf@circ@voltage@angle : (\ctikzvalof{bipole/name}.right)$)
+
+ \ifpgf@circuit@bipole@voltage@below
+ coordinate (pgfcirc@Vcont1) at ($(\ctikzvalof{bipole/name}.center) ! \bumpb ! (\ctikzvalof{bipole/name}.-110)$)
+ coordinate (pgfcirc@Vcont2) at ($(\ctikzvalof{bipole/name}.center) ! \bumpb ! (\ctikzvalof{bipole/name}.-70)$)
+ \else
+ coordinate (pgfcirc@Vcont1) at ($(\ctikzvalof{bipole/name}.center) ! \bumpb ! (\ctikzvalof{bipole/name}.110)$)
+ coordinate (pgfcirc@Vcont2) at ($(\ctikzvalof{bipole/name}.center) ! \bumpb ! (\ctikzvalof{bipole/name}.70)$)
+ \fi
+
+ \ifpgf@circuit@europeanvoltage
+ \ifpgf@circuit@bipole@voltage@backward
+ (pgfcirc@Vto) .. controls (pgfcirc@Vcont2) and (pgfcirc@Vcont1) ..
+ node[currarrow, sloped, allow upside down, pos=1] {}
+ (pgfcirc@Vfrom)
+ \else
+ (pgfcirc@Vfrom) .. controls (pgfcirc@Vcont1) and (pgfcirc@Vcont2) ..
+ node[currarrow, sloped, allow upside down, pos=1] {}
+ (pgfcirc@Vto)
+ \fi
+ \else
+ \ifpgf@circuit@bipole@voltage@backward
+ (pgfcirc@Vfrom) node[inner sep=0, anchor=\pgf@circ@bipole@voltage@label@anchor]{\scriptsize$+$}
+ (pgfcirc@Vto) node[inner sep=0, anchor=\pgf@circ@bipole@voltage@label@anchor]{$-$}
+ \else
+ (pgfcirc@Vfrom) node[inner sep=0, anchor=\pgf@circ@bipole@voltage@label@anchor]{\scriptsize$-$}
+ (pgfcirc@Vto) node[inner sep=0, anchor=\pgf@circ@bipole@voltage@label@anchor]{$+$}
+ \fi
+ \fi
+}
+
+%% Output routine for voltage sources
+
+\def\pgf@circ@drawvoltagegenerator{
+ \ifpgf@circuit@bipole@voltage@below
+ coordinate (pgfcirc@Vcont1) at ($(\ctikzvalof{bipole/name}.center) ! \ctikzvalof{voltage/bump a} ! (\ctikzvalof{bipole/name}.-120)$)
+ coordinate (pgfcirc@Vcont2) at ($(\ctikzvalof{bipole/name}.center) ! \ctikzvalof{voltage/bump a} ! (\ctikzvalof{bipole/name}.-60)$)
+ \else
+ coordinate (pgfcirc@Vcont1) at ($ (\ctikzvalof{bipole/name}.center) ! \ctikzvalof{voltage/bump a} ! (\ctikzvalof{bipole/name}.120)$)
+ coordinate (pgfcirc@Vcont2) at ($ (\ctikzvalof{bipole/name}.center) ! \ctikzvalof{voltage/bump a} ! (\ctikzvalof{bipole/name}.60)$)
+ \fi
+
+ \ifpgf@circuit@europeanvoltage
+ \ifpgf@circuit@bipole@voltage@backward
+ (pgfcirc@Vcont2) -- node[currarrow, sloped, allow upside down, pos=1] {} (pgfcirc@Vcont1)
+ \else
+ (pgfcirc@Vcont1) -- node[currarrow, sloped, allow upside down, pos=1] {} (pgfcirc@Vcont2)
+ \fi
+
+ \else % american voltage
+
+ \pgfextra{
+ \def\pgf@temp{\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}}
+ \def\pgf@circ@temp{battery}
+ \ifx\pgf@temp\pgf@circ@temp
+ \edef\pgf@circ@batteria{battery}
+ \else
+ \def\pgf@circ@temp{battery1}
+ \ifx\pgf@temp\pgf@circ@temp
+ \edef\pgf@circ@batteria{battery}
+ \else
+ \edef\pgf@circ@batteria{false}
+ \fi
+ \fi
+ \edef\pgf@circ@temp{battery}
+ }
+
+ \ifx\pgf@circ@batteria\pgf@circ@temp % if it is a battery, must put + and -
+ \ifpgf@circuit@bipole@voltage@backward
+ (pgfcirc@Vcont2) node {$-$} (pgfcirc@Vcont1) node {$+$}
+ \else
+ (pgfcirc@Vcont1) node {$-$} (pgfcirc@Vcont2) node {$+$}
+ \fi
+ \fi
+
+ \fi
+}
+
+%% Output routine
+
+\def\pgf@circ@drawvoltage{ % node name
+ \pgfextra{
+ \edef\pgfcircmathresult{\expandafter\pgf@circ@stripdecimals\pgf@circ@direction\pgf@nil}
+
+ \ifnum\pgfcircmathresult >4 \ifnum\pgfcircmathresult <86
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{north west}
+ \else \def\pgf@circ@bipole@voltage@label@anchor{south east}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >85 \ifnum\pgfcircmathresult <95
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{west}
+ \else \def\pgf@circ@bipole@voltage@label@anchor{east}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >94 \ifnum\pgfcircmathresult <176
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{south west}
+ \else \def\pgf@circ@bipole@voltage@label@anchor{north east}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >175 \ifnum\pgfcircmathresult <185
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{south}
+ \else\def\pgf@circ@bipole@voltage@label@anchor{north}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >184 \ifnum\pgfcircmathresult <266
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{south east}
+ \else\def\pgf@circ@bipole@voltage@label@anchor{north west}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >265 \ifnum\pgfcircmathresult <275
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{east}
+ \else \def\pgf@circ@bipole@voltage@label@anchor{west}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >284 \ifnum\pgfcircmathresult <356
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{north east}
+ \else\def\pgf@circ@bipole@voltage@label@anchor{south west}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >-1 \ifnum\pgfcircmathresult <5
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{north}
+ \else\def\pgf@circ@bipole@voltage@label@anchor{south}
+ \fi
+ \fi\fi
+ \ifnum\pgfcircmathresult >355 \ifnum\pgfcircmathresult <361
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@anchor{north}
+ \else\def\pgf@circ@bipole@voltage@label@anchor{south}
+ \fi
+ \fi\fi
+
+ \ifpgf@circuit@bipole@voltage@below
+ \def\pgf@circ@bipole@voltage@label@where{-90}
+ \else
+ \def\pgf@circ@bipole@voltage@label@where{90}
+ \fi
+
+ \edef\pgf@temp{/tikz/circuitikz/bipoles/\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}/voltage/european label distance}
+ \pgfkeysifdefined{\pgf@temp}
+ { \edef\eudist{\ctikzvalof{bipoles/\pgfkeysvalueof{/tikz/circuitikz/bipole/kind}/voltage/european label distance}} }
+ { \edef\eudist{\ctikzvalof{voltage/european label distance}} }
+ }
+
+ \ifpgf@circuit@bipole@isvoltage
+ \pgf@circ@drawvoltagegenerator
+ \else
+ \pgf@circ@drawvoltagegeneric
+ \fi
+ (\ctikzvalof{bipole/name}.\pgf@circ@bipole@voltage@label@where)
+ coordinate (Vlab) at ($(\ctikzvalof{bipole/name}.center) !
+ \ifpgf@circuit@europeanvoltage\eudist\else\ctikzvalof{voltage/american label distance}\fi !
+ (\ctikzvalof{bipole/name}.\pgf@circ@bipole@voltage@label@where)$)
+ node [anchor=\pgf@circ@bipole@voltage@label@anchor, inner sep=0]
+ at (Vlab) { \pgf@circ@finallabel{voltage/} }
+}
+
+
+
+
+\endinput
+
+% coordinate (pgfcirc@Vcont1) at ($ (\ctikzvalof{bipole/name}.center) !
+% \ctikzvalof{voltage/bump b} !
+% (\ctikzvalof{bipole/name}.-110) $)
+% coordinate (pgfcirc@Vcont2) at ($ (\ctikzvalof{bipole/name}.center) !
+% \ctikzvalof{voltage/bump b} !
+% (\ctikzvalof{bipole/name}.-70) $)
+% \else
+% coordinate (pgfcirc@Vcont1) at ($ (\ctikzvalof{bipole/name}.center) !
+% \ctikzvalof{voltage/bump b} !
+% (\ctikzvalof{bipole/name}.110) $)
+% coordinate (pgfcirc@Vcont2) at ($ (\ctikzvalof{bipole/name}.center) !
+% \ctikzvalof{voltage/bump b} !
+% (\ctikzvalof{bipole/name}.70) $)
+% \fi