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+% Copyright 2008 by Mark Wibrow
+%
+% 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.
+
+
+\newif\ifpgfgateanchorsuseboundingrectangle%
+
+
+% Keys for US/CDH logic gates.
+%
+\pgfkeys{/pgf/.cd,%
+ logic gate input sep/.initial=0.125cm,
+ logic gate inputs/.initial={normal,normal},%
+ logic gate inverted radius/.initial=2pt,%
+ logic gate anchors use bounding box/.is if=pgfgateanchorsuseboundingrectangle,%
+}
+
+% An internal macro for calculating internal dimensions of
+% the US + CDH gates (excluding and gate US and nand gate US).
+%
+\def\pgf@lib@sh@logicgates@dimensions@orUS{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/inner xsep}}%
+ \advance\pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{\pgfkeysvalueof{/pgf/inner ysep}}%
+ \advance\pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y.5\dp\pgfnodeparttextbox%
+ %
+ % Adjust the height for the number of inputs.
+ %
+ \c@pgf@counta\pgf@lib@sh@logicgate@numinputs%
+ \advance\c@pgf@counta1\relax%
+ \pgfmathsetlength\pgf@ya{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@ya\pgflinewidth%
+ \pgfmathsetlength\pgf@yb{\pgfkeysvalueof{/pgf/logic gate input sep}}%
+ \pgf@yb.5\pgf@yb%
+ \ifdim\pgf@ya<\pgf@yb%
+ \pgf@ya\pgf@yb%
+ \fi%
+ \multiply\pgf@ya\c@pgf@counta%
+ \ifdim\pgf@y<\pgf@ya%
+ \pgf@y\pgf@ya%
+ \fi%
+ %
+ \ifdim\pgf@x>\pgf@y%
+ \pgf@y\pgf@x%
+ \else%
+ \pgf@x\pgf@y%
+ \fi%
+ %
+ % Adjust for minimum height and width.
+ %
+ \pgfmathsetlength\pgf@xa{\pgfkeysvalueof{/pgf/minimum width}}%
+ \pgfmathsetlength\pgf@ya{\pgfkeysvalueof{/pgf/minimum height}}%
+ \ifdim\pgf@y<.5\pgf@ya%
+ \pgf@y.5\pgf@ya%
+ \fi%
+ \pgf@xb\pgf@x%
+ \advance\pgf@xb1.732051\pgf@y% 2y*cos(30)
+ \ifdim\pgf@xb<\pgf@xa%
+ \pgf@xb\pgf@xa%
+ \pgf@x0.366025\pgf@xb% xb / (1 + 2*cos(30))
+ \fi%
+ %
+ \ifdim\pgf@x>\pgf@y%
+ \pgf@y\pgf@x%
+ \else%
+ \pgf@x\pgf@y%
+ \fi%
+ \edef\halfside{\the\pgf@x}%
+ \addtosavedmacro\halfside%
+ %
+ % Take into account the outer sep.
+ %
+ \pgfmathsetlength\pgf@xa{\pgfkeysvalueof{/pgf/outer xsep}}%
+ \pgfmathsetlength\pgf@ya{\pgfkeysvalueof{/pgf/outer ysep}}%
+ \edef\outerxsep{\the\pgf@xa}%
+ \edef\outerysep{\the\pgf@ya}%
+ \addtosavedmacro\outerxsep%
+ \addtosavedmacro\outerysep%
+ \advance\pgf@x\pgf@xa%
+ \advance\pgf@y\pgf@ya%
+ %
+ \edef\halfwidth{\the\pgf@x}%
+ \edef\halfheight{\the\pgf@y}%
+ \addtosavedmacro\halfwidth%
+ \addtosavedmacro\halfheight%
+ %
+ \pgfextract@process\tipanchor{%
+ \advance\pgf@x-\pgf@xa%
+ \advance\pgf@y-\pgf@ya%
+ \pgf@x-.16666\pgf@x%
+ \pgf@yb2.0\pgf@y%
+ \advance\pgf@x.866025\pgf@yb%
+ \advance\pgf@x1.154701\pgf@xa%
+ \pgf@y0pt%
+ }%
+ \addtosavedmacro\tipanchor%
+}%
+
+
+% An internal macro for calculating internal dimensions of
+% the and gate US and nand gate US.
+%
+\def\pgf@lib@sh@logicgates@dimensions@andUS{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/inner xsep}}%
+ \advance\pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{\pgfkeysvalueof{/pgf/inner ysep}}%
+ \advance\pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y.5\dp\pgfnodeparttextbox%
+ %
+ % Adjust the height for the number of inputs.
+ %
+ \c@pgf@counta\pgf@lib@sh@logicgate@numinputs%
+ \advance\c@pgf@counta1\relax%
+ \pgfmathsetlength\pgf@ya{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@ya\pgflinewidth%
+ \pgfmathsetlength\pgf@yb{\pgfkeysvalueof{/pgf/logic gate input sep}}%
+ \pgf@yb.5\pgf@yb%
+ \ifdim\pgf@ya<\pgf@yb%
+ \pgf@ya\pgf@yb%
+ \fi%
+ \multiply\pgf@ya\c@pgf@counta%
+ \ifdim\pgf@y<\pgf@ya%
+ \pgf@y\pgf@ya%
+ \fi%
+ %
+ \ifdim\pgf@x>\pgf@y%
+ \pgf@y\pgf@x%
+ \else%
+ \pgf@x\pgf@y%
+ \fi%
+ %
+ % Adjust for minimum height and width.
+ %
+ \pgfmathsetlength\pgf@xa{\pgfkeysvalueof{/pgf/minimum width}}%
+ \pgfmathsetlength\pgf@ya{\pgfkeysvalueof{/pgf/minimum height}}%
+ \ifdim\pgf@y<.5\pgf@ya%
+ \pgf@y.5\pgf@ya%
+ \fi%
+ \pgf@xb2.5\pgf@x%
+ \ifdim\pgf@xb<\pgf@xa%
+ \pgf@xb\pgf@xa%
+ \pgf@x0.4\pgf@xb%
+ \fi%
+ %
+ \ifdim\pgf@x>\pgf@y%
+ \pgf@y\pgf@x%
+ \else%
+ \pgf@x\pgf@y%
+ \fi%
+ \edef\halfside{\the\pgf@x}%
+ \addtosavedmacro\halfside%
+ %
+ % Take into account the outer sep.
+ %
+ \pgfmathsetlength\pgf@xa{\pgfkeysvalueof{/pgf/outer xsep}}%
+ \pgfmathsetlength\pgf@ya{\pgfkeysvalueof{/pgf/outer ysep}}%
+ \edef\outerxsep{\the\pgf@xa}%
+ \edef\outerysep{\the\pgf@ya}%
+ \addtosavedmacro\outerxsep%
+ \addtosavedmacro\outerysep%
+ \advance\pgf@x\pgf@xa%
+ \advance\pgf@y\pgf@ya%
+ %
+ \edef\halfwidth{\the\pgf@x}%
+ \edef\halfheight{\the\pgf@y}%
+ \addtosavedmacro\halfwidth%
+ \addtosavedmacro\halfheight%
+ %
+}%
+
+
+% Internal macro for parsing inputs.
+%
+\expandafter\ifx\csname pgf@lib@sh@logicgate@parseinputs\endcsname\relax%
+\def\pgf@lib@sh@logicgate@parseinputs#1{%
+ \edef\pgf@lib@sh@temp{\pgfkeysvalueof{/pgf/logic gate inputs}}%
+ \c@pgf@counta#1\relax%
+ \c@pgf@countb0\relax%
+ \expandafter\pgfutil@in@\expandafter,\expandafter{\pgf@lib@sh@temp}%
+ \ifpgfutil@in@%
+ \let\pgf@lib@sh@next\pgf@lib@sh@logicgate@parseinputs@long%
+ \else%
+ \let\pgf@lib@sh@next\pgf@lib@sh@logicgate@parseinputs@short%
+ \fi%
+ \pgf@lib@sh@next%
+}
+\def\pgf@lib@sh@itext{i}
+\def\pgf@lib@sh@invertedtext{inverted}
+%
+% The `short' version for input specifcation is an extension of
+% ideas due to Juergen Werber and Christoph Bartoschek.
+%
+\def\pgf@lib@sh@logicgate@parseinputs@short{%
+ \expandafter\pgf@lib@sh@logicgate@parseinputs@@short\pgf@lib@sh@temp\pgf@stop%
+}
+\def\pgf@lib@sh@logicgate@parseinputs@@short#1{%
+ \ifx#1\pgf@stop%
+ \edef\pgf@lib@sh@logicgate@numinputs{\the\c@pgf@countb}%
+ \let\pgf@lib@sh@next\relax%
+ \else%
+ \ifnum\c@pgf@countb=\c@pgf@counta%
+ \edef\pgf@lib@sh@logicgate@numinputs{\the\c@pgf@countb}%
+ \let\pgf@lib@sh@next\relax%
+ \else%
+ \advance\c@pgf@countb1\relax%
+ \expandafter\ifx\pgf@lib@sh@itext#1%
+ \expandafter\pgf@sh@resavedmacro\expandafter{\csname input-\the\c@pgf@countb\endcsname}{%
+ \expandafter\def\csname input-\the\c@pgf@countb\endcsname{i}}%
+ \else%
+ \expandafter\pgf@sh@resavedmacro\expandafter{\csname input-\the\c@pgf@countb\endcsname}{%
+ \expandafter\def\csname input-\the\c@pgf@countb\endcsname{n}}%
+ \fi%
+ \let\pgf@lib@sh@next\pgf@lib@sh@logicgate@parseinputs@@short%
+ \fi%
+ \fi%
+ \pgf@lib@sh@next%
+}
+\def\pgf@lib@sh@logicgate@parseinputs@long{%
+ \expandafter\pgf@lib@sh@logicgate@parseinputs@@long\pgf@lib@sh@temp,\pgf@stop,%
+}
+\def\pgf@lib@sh@logicgate@parseinputs@@long#1,{%
+ \ifx#1\pgf@stop%
+ \edef\pgf@lib@sh@logicgate@numinputs{\the\c@pgf@countb}%
+ \let\pgf@lib@sh@next\relax%
+ \else%
+ \ifnum\c@pgf@countb=\c@pgf@counta%
+ \edef\pgf@lib@sh@logicgate@numinputs{\the\c@pgf@countb}%
+ \let\pgf@lib@sh@next\relax%
+ \else%
+ \advance\c@pgf@countb1\relax%
+ \def\pgf@lib@sh@temp{#1}%
+ \ifx\pgf@lib@sh@invertedtext\pgf@lib@sh@temp%
+ \expandafter\pgf@sh@resavedmacro\expandafter{\csname input-\the\c@pgf@countb\endcsname}{%
+ \expandafter\def\csname input-\the\c@pgf@countb\endcsname{i}}%
+ \else%
+ \expandafter\pgf@sh@resavedmacro\expandafter{\csname input-\the\c@pgf@countb\endcsname}{%
+ \expandafter\def\csname input-\the\c@pgf@countb\endcsname{n}}%
+ \fi%
+ \let\pgf@lib@sh@next\pgf@lib@sh@logicgate@parseinputs@@@long%
+ \fi%
+ \fi%
+ \pgf@lib@sh@next%
+}
+\def\pgf@lib@sh@logicgate@parseinputs@@@long{%
+ \pgfutil@ifnextchar x{\pgf@lib@sh@logicgate@parseinputs@@long}%
+ {\pgf@lib@sh@logicgate@parseinputs@@long}%
+}
+\fi%
+
+% Internal macro for calculation input anchors. Used by
+% both and gates and nand gates, and also the not gate and buffer.
+%
+\def\pgf@lib@sh@logicgate@AND@inputanchor#1{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-.166666\pgf@xa%
+ \advance\pgf@x-\halfwidth%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-#1\endcsname%
+ \advance\pgf@x-\invertedradius%
+ \advance\pgf@x-\outerinvertedradius%
+ \fi%
+ %
+ \pgfutil@tempdima\halfside%
+ \multiply\pgfutil@tempdima2\relax%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \multiply\pgfutil@tempdima#1\relax%
+ \advance\pgf@y\halfside%
+ \advance\pgf@y-\pgfutil@tempdima%
+}
+
+
+
+
+% Shape and gate US
+%
+\pgfdeclareshape{and gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@and gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1024}% Maximum 1024 (!) inputs.
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@and gate US@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@and gate US@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@AND@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{An and gate must have at least two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@andUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \anchor{mid east}{%
+ \csname pgf@anchor@and gate US@east\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{mid west}{%
+ \csname pgf@anchor@and gate US@west\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{base}{\basepoint}%
+ \anchor{base east}{%
+ \csname pgf@anchor@and gate US@east\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \anchor{base west}{%
+ \csname pgf@anchor@and gate US@west\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \anchor{east}{%
+ \dimensions%
+ \pgf@xa\halfwidth%
+ \pgf@xb\pgf@xa%
+ \advance\pgf@xb-\outerxsep%
+ \centerpoint%
+ \advance\pgf@x.333333\pgf@xb%
+ \advance\pgf@x\pgf@xa%
+ }
+ \anchor{output}{\csname pgf@anchor@and gate US@east\endcsname}
+ \anchor{north east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@nand gate US@east\endcsname%
+ \advance\pgf@y\halfheight%
+ \else
+ \pgf@xa\halfwidth%
+ \pgf@ya\halfheight%
+ \pgf@xb\pgf@xa%
+ \advance\pgf@xb-\outerxsep%
+ \centerpoint%
+ \advance\pgf@x.333333\pgf@xb%
+ \advance\pgf@x.707106\pgf@xa%
+ \advance\pgf@y.707106\pgf@ya%
+ \fi%
+ }
+ \anchor{south east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@nand gate US@east\endcsname%
+ \advance\pgf@y-\halfheight%
+ \else
+ \pgf@xa\halfwidth%
+ \pgf@ya\halfheight%
+ \pgf@xb\pgf@xa%
+ \advance\pgf@xb-\outerxsep%
+ \centerpoint%
+ \advance\pgf@x.333333\pgf@xb%
+ \advance\pgf@x.707106\pgf@xa%
+ \advance\pgf@y-.707106\pgf@ya%
+ \fi%
+ }
+ \anchor{north}{%
+ \dimensions%
+ \centerpoint%
+ \advance\pgf@y\halfheight%
+ }
+ \anchor{south}{%
+ \dimensions%
+ \centerpoint%
+ \advance\pgf@y-\halfheight%
+ }
+ \anchor{south west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@y-\halfheight%
+ }
+ \anchor{north west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@y\halfheight%
+ }
+ \anchor{west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ }
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ \pgf@xb.333333\pgf@xc%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{\pgf@xb}{\pgf@yc}}%
+ {%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{\pgf@yc}}%
+ \pgfpathclose%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@xa\halfside%
+ \pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-.5\pgflinewidth%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ }%
+ }%
+ \anchorborder{%
+ \pgfextract@process\externalpoint{}%
+ \pgfextract@process\externalpoint{\pgfpointadd{\centerpoint}{\externalpoint}}%
+ \pgfmathanglebetweenpoints{\centerpoint}{\externalpoint}%
+ \let\externalangle\pgfmathresult%
+ \dimensions%
+ \pgf@xb\halfside%
+ \pgf@xc1.66666\pgf@xb%
+ \advance\pgf@xc\outerxsep%
+ \pgf@yc\halfheight%
+ \pgfmathanglebetweenpoints{\centerpoint}{\csname pgf@anchor@and gate US@north west\endcsname}%
+ \ifdim\externalangle pt<\pgfmathresult pt\relax%
+ \pgfmathanglebetweenpoints{\centerpoint}{\centerpoint\advance\pgf@x.333333\pgf@xb\advance\pgf@y\pgf@yc}%
+ \ifdim\externalangle pt<\pgfmathresult pt\relax%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@x.333333\pgf@xb%
+ }%
+ {0}{90}{+\halfwidth and +\halfheight}%
+ \else%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {\centerpoint\advance\pgf@x.333333\pgf@xb\advance\pgf@y\pgf@yc}%
+ {\centerpoint\advance\pgf@x-\pgf@xc\advance\pgf@y\pgf@yc}%
+ \fi%
+ \else%
+ \pgfmathanglebetweenpoints{\centerpoint}{\centerpoint\advance\pgf@x.333333\pgf@xb\advance\pgf@y-\pgf@yc}%
+ \ifdim\externalangle pt>\pgfmathresult pt\relax%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@x.333333\pgf@xb%
+ }%
+ {270}{360}{+\halfwidth and +\halfheight}%
+ \else%
+ \pgfmathanglebetweenpoints{\centerpoint}{\csname pgf@anchor@and gate US@south west\endcsname}%
+ \ifdim\externalangle pt>\pgfmathresult pt\relax%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {\centerpoint\advance\pgf@x.333333\pgf@xb\advance\pgf@y-\pgf@yc}%
+ {\csname pgf@anchor@and gate US@south west\endcsname}%
+ \else%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {\csname pgf@anchor@and gate US@north west\endcsname}%
+ {\csname pgf@anchor@and gate US@south west\endcsname}%
+ \fi%
+ \fi%
+ \fi%
+ }
+}
+
+
+
+
+
+% Shape nand gate US
+%
+\pgfdeclareshape{nand gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@nand gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1024}% Maximum 1024 (!) inputs.
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@nand gate US@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@nand gate US@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@AND@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{A nand gate must have at least two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@andUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \inheritanchor[from=and gate US]{mid}
+ \inheritanchor[from=and gate US]{mid east}
+ \inheritanchor[from=and gate US]{mid west}
+ \inheritanchor[from=and gate US]{base}
+ \inheritanchor[from=and gate US]{base east}
+ \inheritanchor[from=and gate US]{base west}
+ \anchor{output}{%
+ \dimensions
+ \pgfpointadd{\centerpoint}{%
+ \pgf@xa\halfside%
+ \pgf@x1.33333\pgf@xa%
+ \advance\pgf@x\invertedradius%
+ \advance\pgf@x\outerinvertedradius%
+ \advance\pgf@x\outerxsep%
+ \pgf@y0pt%
+ }%
+ }
+ \inheritanchor[from=and gate US]{east}
+ \inheritanchor[from=and gate US]{north east}
+ \inheritanchor[from=and gate US]{south east}
+ \inheritanchor[from=and gate US]{north}
+ \inheritanchor[from=and gate US]{south}
+ \inheritanchor[from=and gate US]{south west}
+ \inheritanchor[from=and gate US]{north west}
+ \inheritanchor[from=and gate US]{west}
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ \pgf@xb.333333\pgf@xc%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{\pgf@xb}{\pgf@yc}}%
+ {%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{\pgf@yc}}%
+ \pgfpathclose%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@xa\halfside%
+ \pgf@x-1.166666\pgf@xa%
+ \advance\pgf@x-.5\pgflinewidth%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ %
+ % Draw the output inverter.
+ %
+ {%
+ \pgfpathcircle{%
+ \pgf@x1.33333\pgf@xc%
+ \advance\pgf@x\outerinvertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ }%
+ }
+ \inheritanchorborder[from=and gate US]
+}
+
+
+% Internal macro for calculation input anchors. Used by
+% or, nor xnor gates (US).
+%
+\def\pgf@lib@sh@logicgate@OR@inputanchor#1{%
+ \dimensions%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ %
+ \pgfutil@tempdima\halfside%
+ \multiply\pgfutil@tempdima2\relax%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \multiply\pgfutil@tempdima#1\relax%
+ \pgf@yc\pgf@ya%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ %
+ \pgf@xb\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{\pgfmath@tonumber{\pgf@yc}}{\pgfmath@tonumber{\pgf@yb}}%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@xc-1.166666\pgf@ya%
+ \advance\pgf@xc-.866025\pgf@xb%
+ \advance\pgf@xc\pgfmathresult\pgf@yb%
+ \advance\pgf@xc\halflinewidth%
+ \advance\pgf@xc-\outerxsep%
+ %
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-#1\endcsname%
+ \advance\pgf@xc-\invertedradius%
+ \advance\pgf@xc-\outerinvertedradius%
+ \fi%
+ %
+ \centerpoint%
+ \advance\pgf@x\pgf@xc%
+ \advance\pgf@y\pgf@yc%
+}
+
+
+% Shape or gate US
+%
+\pgfdeclareshape{or gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@or gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1024}% Maximum 1024 (!) inputs.
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@or gate US@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@or gate US@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@OR@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{An or gate must have at least two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\halflinewidth{%
+ \pgf@x.5\pgflinewidth%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \anchor{mid east}{%
+ \csname pgf@anchor@or gate US@east\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{mid west}{%
+ \csname pgf@anchor@or gate US@north west\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{base}{\basepoint}%
+ \anchor{base east}{%
+ \csname pgf@anchor@or gate US@east\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \anchor{base west}{%
+ \csname pgf@anchor@or gate US@north west\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \anchor{east}{%
+ \dimensions%
+ \pgfpointadd{\centerpoint}{\tipanchor}%
+ }
+ \anchor{output}{\csname pgf@anchor@or gate US@east\endcsname}
+ \anchor{north east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ \advance\pgf@y\halfheight%
+ \else%
+ \centerpoint%
+ \pgf@xa\halfwidth%
+ \pgf@ya\halfheight%
+ \pgf@xb\halfside%
+ \advance\pgf@x-.166666\pgf@xb%
+ \advance\pgf@xa\pgf@xb%
+ \advance\pgf@x.5\pgf@xa%
+ \advance\pgf@y-\pgf@xb%
+ \advance\pgf@ya\pgf@xb%
+ \advance\pgf@y.866025\pgf@ya%
+ \fi%
+ }
+ \anchor{south east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ \advance\pgf@y-\halfheight%
+ \else
+ \centerpoint%
+ \pgf@xa\halfwidth%
+ \pgf@ya\halfheight%
+ \pgf@xb\halfside%
+ \advance\pgf@x-.166666\pgf@xb%
+ \advance\pgf@xa\pgf@xb%
+ \advance\pgf@x.5\pgf@xa%
+ \advance\pgf@y\pgf@xb%
+ \advance\pgf@ya\pgf@xb%
+ \advance\pgf@y-.866025\pgf@ya%
+ \fi%
+ }
+ \anchor{north}{%
+ \dimensions%
+ \centerpoint%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@y\halfheight%
+ \else%
+ \pgf@ya\halfheight%
+ \advance\pgf@y.993043\pgf@ya%
+ \fi%
+ }
+ \anchor{south}{%
+ \dimensions%
+ \centerpoint%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@y-\halfheight%
+ \else%
+ \pgf@ya\halfheight%
+ \advance\pgf@y-.993043\pgf@ya%
+ \fi%
+ }
+ \anchor{south west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x-1.732050\pgf@xa%
+ \advance\pgf@y-\halfheight%
+ }
+ \anchor{north west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x-1.732050\pgf@xa%
+ \advance\pgf@y\halfheight%
+ }
+ \anchor{west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \else%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@x0.267949\pgf@xa%
+ \fi%
+ }
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{-.16666\pgf@xc}{\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{30}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{-30}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \pgfpatharc{-30}{0}{+\pgf@yc}%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \pgfpatharc{0}{30}{+\pgf@yc}%
+ }%
+ \pgfpathclose%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ \pgf@xa\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{\pgfmath@tonumber{\pgf@yc}}{\pgfmath@tonumber{\pgf@yb}}%
+ \let\sineangle\pgfmathresult%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@x-1.166666\pgf@ya%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x\pgfmathresult\pgf@yb%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ }%
+ }%
+ \anchorborder{%
+ \pgfextract@process\externalpoint{}%
+ \pgfextract@process\externalpoint{\pgfpointadd{\centerpoint}{\externalpoint}}%
+ \pgf@xa\pgf@x%
+ \pgf@ya\pgf@y%
+ \centerpoint%
+ \pgf@xb\pgf@x%
+ \pgf@yb\pgf@y%
+ \pgfmathanglebetweenpoints{\centerpoint}{\externalpoint}%
+ \let\externalangle\pgfmathresult%
+ \dimensions%
+ \pgf@xc\halfside%
+ %
+ \pgf@xc-.166666\pgf@xc%
+ \ifdim\pgf@xa<\pgf@xc%
+ \pgfmathanglebetweenpoints{\centerpoint}{\csname pgf@anchor@or gate US@north west\endcsname}%
+ \ifdim\externalangle pt<\pgfmathresult pt\relax%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@or gate US@north\endcsname%
+ }%
+ {\csname pgf@anchor@or gate US@north west\endcsname}%
+ \else%
+ \pgfmathsubtract@{360}{\pgfmathresult}%
+ \ifdim\externalangle pt>\pgfmathresult pt\relax%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@or gate US@south\endcsname%
+ }%
+ {\csname pgf@anchor@or gate US@south west\endcsname}%
+ \else%
+ \ifdim\pgf@ya>\pgf@yb%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \advance\pgf@yc-\outerxsep%
+ \pgfextract@process\point{%
+ \pgfmathpointintersectionoflineandarc{\centerpoint}{\externalpoint}%
+ {%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.166666\pgf@xa%
+ \pgf@xa2.0\pgf@xa%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ }%
+ {0}{90}{+\pgf@yc}%
+ }%
+ \else%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \advance\pgf@yc-\outerxsep%
+ \pgfextract@process\point{%
+ \pgfmathpointintersectionoflineandarc{\centerpoint}{\externalpoint}%
+ {%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.166666\pgf@xa%
+ \pgf@xa2.0\pgf@xa%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ }%
+ {270}{360}{+\pgf@yc}%
+ }%
+ \fi%
+ \fi%
+ \fi%
+ \else%
+ \ifdim\pgf@y=0pt\relax%
+ \csname pgf@anchor@and gate US@east\endcsname%
+ \else%
+ \pgf@xc\halfwidth%
+ \advance\pgf@xc\halfside%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \pgf@xb\halfside%
+ \pgf@xb-.166666\pgf@xb%
+ \ifdim\pgf@ya<0pt%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@y\halfside%
+ \advance\pgf@x\pgf@xb%
+ }%
+ {270}{330}{+\pgf@yc}%
+ \else%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@y-\halfside%
+ \advance\pgf@x\pgf@xb%
+ }%
+ {30}{90}{+\pgf@xc and +\pgf@yc}%
+ \fi%
+ \fi%
+ \fi%
+ }%
+}
+
+
+
+
+% Shape nor gate US
+%
+\pgfdeclareshape{nor gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@nor gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1024}% Maximum 1024 (!) inputs.
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@nor gate US@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@nor gate US@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@OR@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{A nor gate must have at least two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\halflinewidth{%
+ \pgf@x.5\pgflinewidth%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \inheritanchor[from=or gate US]{center}
+ \inheritanchor[from=or gate US]{mid}
+ \inheritanchor[from=or gate US]{mid east}
+ \inheritanchor[from=or gate US]{mid west}
+ \inheritanchor[from=or gate US]{base}
+ \inheritanchor[from=or gate US]{base east}
+ \inheritanchor[from=or gate US]{base west}
+ \inheritanchor[from=or gate US]{east}
+ \inheritanchor[from=or gate US]{north east}
+ \inheritanchor[from=or gate US]{south east}
+ \inheritanchor[from=or gate US]{north}
+ \inheritanchor[from=or gate US]{south}
+ \inheritanchor[from=or gate US]{south west}
+ \inheritanchor[from=or gate US]{north west}
+ \inheritanchor[from=or gate US]{west}
+ \anchor{output}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xc\halfside%
+ \pgf@yc\pgf@xc%
+ \advance\pgf@x-.166666\pgf@xc%
+ \pgf@yc2.0\pgf@yc%
+ \advance\pgf@x.866025\pgf@yc%
+ \advance\pgf@x\outerinvertedradius%
+ \advance\pgf@x\invertedradius%
+ \advance\pgf@x\outerxsep%
+ }%
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{-.16666\pgf@xc}{\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{30}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{-30}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \pgfpatharc{-30}{0}{+\pgf@yc}%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \pgfpatharc{0}{30}{+\pgf@yc}%
+ }%
+ \pgfpathclose%
+ % Draw the output inverter.
+ %
+ {%
+ \pgfpathcircle{%
+ \pgf@x-.166666\pgf@xc%
+ \pgf@yc2.0\pgf@yc%
+ \advance\pgf@x.866025\pgf@yc%
+ \advance\pgf@x\outerinvertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ \pgf@xa\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{\pgfmath@tonumber{\pgf@yc}}{\pgfmath@tonumber{\pgf@yb}}%
+ \let\sineangle\pgfmathresult%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@x-1.166666\pgf@ya%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x\pgfmathresult\pgf@yb%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ }%
+ }%
+ \inheritanchorborder[from=or gate US]
+}
+
+
+
+% Internal macro for calculation input anchors. Used by
+% xor and xnor gates (US).
+%
+\def\pgf@lib@sh@logicgate@XOR@inputanchor#1{%
+ \dimensions%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ %
+ \pgfutil@tempdima\halfside%
+ \multiply\pgfutil@tempdima2\relax%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \multiply\pgfutil@tempdima#1\relax%
+ \pgf@yc\pgf@ya%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ %
+ \pgf@xb\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{\pgfmath@tonumber{\pgf@yc}}{\pgfmath@tonumber{\pgf@yb}}%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@xc-1.166666\pgf@ya%
+ \advance\pgf@xc-.866025\pgf@xb%
+ \advance\pgf@xc\pgfmathresult\pgf@yb%
+ \advance\pgf@xc\halflinewidth%
+ \advance\pgf@xc-\outerxsep%
+ %
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-#1\endcsname%
+ \advance\pgf@xc-\invertedradius%
+ \advance\pgf@xc-\outerinvertedradius%
+ \fi%
+ %
+ \centerpoint%
+ \advance\pgf@x\pgf@xc%
+ \advance\pgf@y\pgf@yc%
+ \pgf@xa\halfside%
+ \advance\pgf@x-.333333\pgf@xa%
+}
+
+
+
+
+
+% Shape xor gate US
+%
+\pgfdeclareshape{xor gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@xor gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{2}%
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@xor gate US@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@xor gate US@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@XOR@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{An xor gate must have at two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\halflinewidth{%
+ \pgf@x.5\pgflinewidth%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \inheritanchor[from=or gate US]{mid east}
+ \anchor{mid west}{%
+ \csname pgf@anchor@xor gate US@north west\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{base}{\basepoint}%
+ \inheritanchor[from=or gate US]{base east}
+ \anchor{base west}{%
+ \csname pgf@anchor@xor gate US@north west\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \inheritanchor[from=or gate US]{base}
+ \inheritanchor[from=or gate US]{output}
+ \inheritanchor[from=or gate US]{east}
+ \inheritanchor[from=or gate US]{north east}
+ \inheritanchor[from=or gate US]{south east}
+ \inheritanchor[from=or gate US]{north}
+ \inheritanchor[from=or gate US]{south}
+ \anchor{south west}{%
+ \dimensions%
+ \pgf@xa\halfside%
+ \pgf@xa-3.232051\pgf@xa% (7/6 + 2*cos(30) + 1/3) * x
+ \pgf@xb\halfside%
+ \pgf@xb2.0\pgf@xb%
+ \advance\pgf@xb-\halflinewidth%
+ \advance\pgf@xa.866025\pgf@xb%
+ \pgf@ya.5\pgf@xb%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@y-\halfheight%
+ \else%
+ \advance\pgf@y-\pgf@ya%
+ \fi%
+ }
+ \anchor{north west}{%
+ \dimensions%
+ \pgf@xa\halfside%
+ \pgf@xa-3.232051\pgf@xa% (7/6 + 2*cos(30) + 1/3) * x
+ \pgf@xb\halfside%
+ \pgf@xb2.0\pgf@xb%
+ \advance\pgf@xb-\halflinewidth%
+ \advance\pgf@xa.866025\pgf@xb%
+ \pgf@ya.5\pgf@xb%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@y\halfheight%
+ \else%
+ \advance\pgf@y\pgf@ya%
+ \fi%
+ }
+ \anchor{west}{%
+ \dimensions%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ %
+ \pgf@xb\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{0}{\pgfmath@tonumber{\pgf@yb}}%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@xc-1.166666\pgf@ya%
+ \advance\pgf@xc-.866025\pgf@xb%
+ \advance\pgf@xc\pgfmathresult\pgf@yb%
+ \advance\pgf@xc\halflinewidth%
+ \advance\pgf@xc-\outerxsep%
+ %
+ \centerpoint%
+ \advance\pgf@x\pgf@xc%
+ \pgf@xa\halfside%
+ \advance\pgf@x-.333333\pgf@xa%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \pgf@xa2.0\pgf@xa%
+ \advance\pgf@x-0.133974\pgf@xa%
+ \fi%
+ }
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{-.16666\pgf@xc}{\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{30}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{-30}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ {%
+ \pgf@yc2.66666\pgf@yc%
+ \pgfpatharc{-22}{0}{+1.166666\pgf@yc and +\pgf@yc}%
+ }
+ {%
+ \pgf@yc2.66666\pgf@yc%
+ \pgfpatharc{0}{22}{+1.166666\pgf@yc and +\pgf@yc}%
+ }%
+ \pgfpathclose%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ \pgf@xa\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{\pgfmath@tonumber{\pgf@yc}}{\pgfmath@tonumber{\pgf@yb}}%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@x-1.5\pgf@ya%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x\pgfmathresult\pgf@yb%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ %
+ % Now, some fooling around to stop the `tail' being filled.
+ % Technically it still is, but it isn't visible.
+ %
+ \pgf@xc\halfside%
+ \pgf@yc\halfside%
+ \pgfpathmoveto{\pgfqpoint{-1.5\pgf@xc}{-\pgf@yc}}%
+ \pgf@yc2.0\pgf@yc%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter<61\relax%
+ {%
+ \pgfextract@process\point{%
+ \pgfpointadd{%
+ \pgf@x\halfside%
+ \pgf@x-3.232051\pgf@x% (7/6 + 2*cos(30) + 1/3) * x
+ \pgf@y0pt%
+ }{%
+ \pgfpointpolar{\pgfmathcounter-30}{+\pgf@yc}%
+ }%
+ }%
+ \pgfpathlineto{\point}%
+ \pgfpathmoveto{\point}%
+ }
+ \repeatpgfmathloop%
+ }%
+ }%
+ \anchorborder{%
+ \pgfextract@process\externalpoint{}%
+ \pgfextract@process\externalpoint{\pgfpointadd{\centerpoint}{\externalpoint}}%
+ \pgf@xa\pgf@x%
+ \pgf@ya\pgf@y%
+ \centerpoint%
+ \pgf@xb\pgf@x%
+ \pgf@yb\pgf@y%
+ \pgfmathanglebetweenpoints{\centerpoint}{\externalpoint}%
+ \let\externalangle\pgfmathresult%
+ \dimensions%
+ \pgf@xc\halfside%
+ %
+ \pgf@xc-.166666\pgf@xc%
+ \ifdim\pgf@xa<\pgf@xc%
+ \pgfmathanglebetweenpoints{\centerpoint}%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@xor gate US@north west\endcsname%
+ }%
+ \ifdim\externalangle pt<\pgfmathresult pt\relax%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@xor gate US@north\endcsname%
+ }%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@xor gate US@north west\endcsname%
+ }%
+ \else%
+ \pgfmathsubtract@{360}{\pgfmathresult}%
+ \ifdim\externalangle pt>\pgfmathresult pt\relax%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@xor gate US@south\endcsname%
+ }%
+ {%
+ \pgfgateanchorsuseboundingrectangletrue%
+ \csname pgf@anchor@xor gate US@south west\endcsname%
+ }%
+ \else%
+ \ifdim\pgf@ya>\pgf@yb%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \advance\pgf@yc-\outerxsep%
+ \pgf@process{%
+ \pgfmathpointintersectionoflineandarc{\centerpoint}{\externalpoint}%
+ {%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.166666\pgf@xa%
+ \pgf@xa2.0\pgf@xa%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@x-.166666\pgf@xa%
+ }%
+ {0}{90}{+\pgf@yc}%
+ }%
+ \else%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \advance\pgf@yc-\outerxsep%
+ \pgf@process{%
+ \pgfmathpointintersectionoflineandarc{\centerpoint}{\externalpoint}%
+ {%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.166666\pgf@xa%
+ \pgf@xa2.0\pgf@xa%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@x-.166666\pgf@xa%
+ }%
+ {270}{360}{+\pgf@yc}%
+ }%
+ \fi%
+ \fi%
+ \fi%
+ \else%
+ \ifdim\pgf@y=0pt\relax%
+ \csname pgf@anchor@and gate US@east\endcsname%
+ \else%
+ \pgf@xc\halfwidth%
+ \advance\pgf@xc\halfside%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \pgf@xb\halfside%
+ \pgf@xb-.166666\pgf@xb%
+ \ifdim\pgf@ya<0pt%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@y\halfside%
+ \advance\pgf@x\pgf@xb%
+ }%
+ {270}{330}{+\pgf@yc}%
+ \else%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@y-\halfside%
+ \advance\pgf@x\pgf@xb%
+ }%
+ {30}{90}{+\pgf@xc and +\pgf@yc}%
+ \fi%
+ \fi%
+ \fi%
+ }%
+}
+
+
+
+
+% Shape xnor gate US
+%
+\pgfdeclareshape{xnor gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@xnor gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{2}%
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@xnor gate US@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@xnor gate US@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@XOR@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{An xnor gate must have two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\halflinewidth{%
+ \pgf@x.5\pgflinewidth%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \inheritanchor[from=xor gate US]{mid east}
+ \inheritanchor[from=xor gate US]{mid west}
+ \anchor{base}{\basepoint}%
+ \inheritanchor[from=xor gate US]{base east}
+ \inheritanchor[from=xor gate US]{base west}
+ \inheritanchor[from=xor gate US]{base}
+ \inheritanchor[from=nor gate US]{output}
+ \inheritanchor[from=xor gate US]{east}
+ \inheritanchor[from=xor gate US]{north east}
+ \inheritanchor[from=xor gate US]{south east}
+ \inheritanchor[from=xor gate US]{north}
+ \inheritanchor[from=xor gate US]{south}
+ \inheritanchor[from=xor gate US]{south west}
+ \inheritanchor[from=xor gate US]{north west}
+ \inheritanchor[from=xor gate US]{west}
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{-.16666\pgf@xc}{\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{30}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{-30}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ {%
+ \pgf@yc2.66666\pgf@yc%
+ \pgfpatharc{-22}{0}{+1.166666\pgf@yc and +\pgf@yc}%
+ }
+ {%
+ \pgf@yc2.66666\pgf@yc%
+ \pgfpatharc{0}{22}{+1.166666\pgf@yc and +\pgf@yc}%
+ }%
+ \pgfpathclose%
+ %
+ % Draw the output inverter.
+ %
+ {%
+ \pgfpathcircle{%
+ \pgf@x-.166666\pgf@xc%
+ \pgf@yc2.0\pgf@yc%
+ \advance\pgf@x.866025\pgf@yc%
+ \advance\pgf@x\outerinvertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@ya\halfside%
+ \pgf@yb2.0\pgf@ya%
+ \pgf@xa\pgf@yb%
+ \advance\pgf@yb-\halflinewidth%
+ \pgfmathdivide@{\pgfmath@tonumber{\pgf@yc}}{\pgfmath@tonumber{\pgf@yb}}%
+ \pgfmathasin@{\pgfmathresult}%
+ \pgfmathcos@{\pgfmathresult}%
+ %
+ \pgf@x-1.5\pgf@ya%
+ \advance\pgf@x-.866025\pgf@xa%
+ \advance\pgf@x\pgfmathresult\pgf@yb%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ %
+ % Now, some fooling around to stop the `tail' being filled.
+ %
+ \pgf@xc\halfside%
+ \pgf@yc\halfside%
+ \pgfpathmoveto{\pgfqpoint{-1.5\pgf@xc}{-\pgf@yc}}%
+ \pgf@yc2.0\pgf@yc%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter<61\relax%
+ {%
+ \pgfextract@process\point{%
+ \pgfpointadd{%
+ \pgf@x\halfside%
+ \pgf@x-3.232051\pgf@x% (7/6 + 2*cos(30) + 1/3) * x
+ \pgf@y0pt%
+ }{%
+ \pgfpointpolar{\pgfmathcounter-30}{+\pgf@yc}%
+ }%
+ }%
+ \pgfpathlineto{\point}%
+ \pgfpathmoveto{\point}%
+ }
+ \repeatpgfmathloop%
+ }%
+ }%
+ \inheritanchorborder[from=xor gate US]
+}
+
+
+
+
+
+
+% Shape not gate US
+%
+\pgfdeclareshape{not gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@not gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1}%
+ \ifnum\pgf@lib@sh@logicgate@numinputs=0\relax%
+ \PackageError{PGF}{A not gate must have one input}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\halflinewidth{%
+ \pgf@x.5\pgflinewidth%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \anchor{mid east}{%
+ \midpoint%
+ \pgfutil@tempdima\pgf@y%
+ \csname pgf@anchor@not gate US@east\endcsname%
+ \pgf@y\pgfutil@tempdima%
+ }
+ \anchor{mid west}{%
+ \dimensions%
+ \pgf@xc\halfside%
+ \pgf@xc-.833333\pgf@xc%
+ \advance\pgf@xc-\outerxsep%
+ \midpoint%
+ \advance\pgf@x\pgf@xc%
+ }%
+ \anchor{base}{\basepoint}%
+ \anchor{base east}{%
+ \basepoint%
+ \pgfutil@tempdima\pgf@y%
+ \csname pgf@anchor@not gate US@east\endcsname%
+ \pgf@y\pgfutil@tempdima%
+ }
+ \anchor{base west}{%
+ \dimensions%
+ \pgf@xc\halfside%
+ \pgf@xc-.833333\pgf@xc%
+ \advance\pgf@xc-\outerxsep%
+ \basepoint%
+ \advance\pgf@x\pgf@xc%
+ }%
+ \inheritanchor[from=and gate US]{base}
+ \anchor{output}{%
+ \dimensions%
+ \pgf@xc\halfside%
+ \centerpoint%
+ \advance\pgf@x-.166666\pgf@xc%
+ \pgf@xc2.0\pgf@xc%
+ \advance\pgf@x.866025\pgf@xc%
+ \advance\pgf@x\invertedradius%
+ \advance\pgf@x\outerinvertedradius%
+ \advance\pgf@x\outerxsep%
+ }
+ \anchor{east}{%
+ \dimensions%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ }%
+ \anchor{north}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@north west\endcsname%
+ \pgf@ya\pgf@y%
+ \centerpoint%
+ \pgf@y\pgf@ya%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@y1pt}%
+ {\csname pgf@anchor@not gate US@north west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{south}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@south west\endcsname%
+ \pgf@ya\pgf@y%
+ \centerpoint%
+ \pgf@y\pgf@ya%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@y-1pt}%
+ {\csname pgf@anchor@not gate US@south west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{south east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@south west\endcsname%
+ \pgf@ya\pgf@y%
+ \pgf@process{%
+ \dimensions%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ }%
+ \pgf@y\pgf@ya%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@x1pt\advance\pgf@y-1pt}%
+ {\csname pgf@anchor@not gate US@south west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{north east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@north west\endcsname%
+ \pgf@ya\pgf@y%
+ \pgf@process{%
+ \dimensions%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ }%
+ \pgf@y\pgf@ya%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@x1pt\advance\pgf@y1pt}%
+ {\csname pgf@anchor@not gate US@north west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{south west}{%
+ \dimensions%
+ \pgf@xa\halfside%
+ \centerpoint%
+ \advance\pgf@x-.833333\pgf@xa
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@y-1.166666\pgf@xa%
+ \pgf@ya\outerysep%
+ \advance\pgf@y-1.565\pgf@ya% Selected by trial and error.
+ }%
+ \anchor{north west}{%
+ \dimensions%
+ \pgf@xa\halfside%
+ \centerpoint%
+ \advance\pgf@x-.833333\pgf@xa
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@y1.166666\pgf@xa%
+ \pgf@ya\outerysep%
+ \advance\pgf@y1.565\pgf@ya% Selected by trial and error.
+ }%
+ \anchor{input}{%
+ \dimensions%
+ \pgf@lib@sh@logicgate@AND@inputanchor{1}%
+ \pgf@xc\halfside%
+ \advance\pgf@x.333333\pgf@xc%
+ }%
+ \anchor{west}{%
+ \dimensions%
+ \pgf@xc\halfside%
+ \pgf@xc-.833333\pgf@xc%
+ \advance\pgf@xc-\outerxsep%
+ \centerpoint%
+ \advance\pgf@x\pgf@xc%
+ }
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\tipanchor}%
+ \pgfpathlineto{\pgfqpoint{-.833333\pgf@xc}{1.166666\pgf@yc}}%
+ \pgfpathlineto{\pgfqpoint{-.833333\pgf@xc}{-1.166666\pgf@yc}}%
+ \pgfpathlineto{\tipanchor}%
+ %
+ % Draw the output inverter.
+ %
+ {%
+ \pgfpathcircle{%
+ \pgf@x-.166666\pgf@xc%
+ \pgf@yc2.0\pgf@yc%
+ \advance\pgf@x.866025\pgf@yc%
+ \advance\pgf@x\outerinvertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ %
+ % Draw the input.
+ %
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-1\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@xa\halfside%
+ \pgf@x-.833333\pgf@xa%
+ \advance\pgf@x-.5\pgflinewidth%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ }%
+ }%
+ \anchorborder{%
+ \pgfextract@process\externalpoint{}%
+ \pgfextract@process\externalpoint{\pgfpointadd{\centerpoint}{\externalpoint}}%
+ \pgfmathanglebetweenpoints{\centerpoint}{\externalpoint}%
+ \let\externalangle\pgfmathresult%
+ \dimensions%
+ \pgfmathanglebetweenpoints{\centerpoint}{\csname pgf@anchor@not gate US@north west\endcsname}%
+ \ifdim\externalangle pt<\pgfmathresult pt%
+ \pgfpointintersectionoflines{\centerpoint}{\externalpoint}%
+ {\csname pgf@anchor@not gate US@north west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \else%
+ \pgfmathanglebetweenpoints{\centerpoint}{\csname pgf@anchor@not gate US@south west\endcsname}%
+ \ifdim\externalangle pt<\pgfmathresult pt%
+ \pgfpointintersectionoflines{\externalpoint}{\centerpoint}%
+ {\csname pgf@anchor@not gate US@north west\endcsname}%
+ {\csname pgf@anchor@not gate US@south west\endcsname}%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\externalpoint}%
+ {\csname pgf@anchor@not gate US@south west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ \fi%
+ }%
+}
+
+
+
+
+
+% Shape buffer gate US.
+%
+\pgfdeclareshape{buffer gate US}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@buffer gate US\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1}%
+ \ifnum\pgf@lib@sh@logicgate@numinputs=0\relax%
+ \PackageError{PGF}{A buffer gate must have one input}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\halflinewidth{%
+ \pgf@x.5\pgflinewidth%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \anchor{mid east}{%
+ \midpoint%
+ \pgfutil@tempdima\pgf@y%
+ \csname pgf@anchor@buffer gate US@east\endcsname%
+ \pgf@y\pgfutil@tempdima%
+ }
+ \anchor{mid west}{%
+ \dimensions%
+ \pgf@xc\halfside%
+ \pgf@xc-.833333\pgf@xc%
+ \advance\pgf@xc-\outerxsep%
+ \midpoint%
+ \advance\pgf@x\pgf@xc%
+ }%
+ \anchor{base}{\basepoint}%
+ \anchor{base east}{%
+ \basepoint%
+ \pgfutil@tempdima\pgf@y%
+ \csname pgf@anchor@buffer gate US@east\endcsname%
+ \pgf@y\pgfutil@tempdima%
+ }
+ \inheritanchor[from=not gate US]{base west}
+ \inheritanchor[from=and gate US]{base}
+ \anchor{output}{\csname pgf@anchor@buffer gate US@east\endcsname}
+ \anchor{east}{%
+ \dimensions%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \anchor{north}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@north west\endcsname%
+ \pgf@ya\pgf@y%
+ \centerpoint%
+ \pgf@y\pgf@ya%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@y1pt}%
+ {\csname pgf@anchor@buffer gate US@north west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{south}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@south west\endcsname%
+ \pgf@ya\pgf@y%
+ \centerpoint%
+ \pgf@y\pgf@ya%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@y-1pt}%
+ {\csname pgf@anchor@not gate US@south west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{south east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@south west\endcsname%
+ \pgfutil@tempdima\pgf@y%
+ \csname pgf@anchor@buffer gate US@east\endcsname%
+ \pgf@y\pgfutil@tempdima%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@x1pt\advance\pgf@y-1pt}%
+ {\csname pgf@anchor@buffer gate US@south west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xc\outerxsep%
+ \advance\pgf@x2.350943\pgf@xc%
+ }%
+ }%
+ \fi%
+ }
+ \anchor{north east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \csname pgf@anchor@not gate US@north west\endcsname%
+ \pgfutil@tempdima\pgf@y%
+ \csname pgf@anchor@buffer gate US@east\endcsname%
+ \pgf@y\pgfutil@tempdima%
+ \else%
+ \pgfpointintersectionoflines{\centerpoint}{\centerpoint\advance\pgf@x1pt\advance\pgf@y1pt}%
+ {\csname pgf@anchor@buffer gate US@north west\endcsname}%
+ {%
+ \pgfpointadd{\centerpoint}{%
+ \tipanchor%
+ \pgf@xa\outerxsep%
+ \advance\pgf@x2.350943\pgf@xa%
+ }%
+ }%
+ \fi%
+ }
+ \inheritanchor[from=not gate US]{south west}
+ \inheritanchor[from=not gate US]{north west}
+ \inheritanchor[from=not gate US]{input}
+ \inheritanchor[from=not gate US]{west}
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\tipanchor}%
+ \pgfpathlineto{\pgfqpoint{-.833333\pgf@xc}{1.166666\pgf@yc}}%
+ \pgfpathlineto{\pgfqpoint{-.833333\pgf@xc}{-1.166666\pgf@yc}}%
+ \pgfpathclose%
+ %
+ % Draw the input.
+ %
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-1\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@xa\halfside%
+ \pgf@x-.833333\pgf@xa%
+ \advance\pgf@x-.5\pgflinewidth%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ }%
+ }%
+ \inheritanchorborder[from=not gate US]
+}
+
+
+
+
+
+\pgfdeclareshape{and gate CDH}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@and gate CDH\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1024}% Maximum 1024 (!) inputs.
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@and gate CDH@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@and gate CDH@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@AND@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{An and gate must have at least two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \anchor{mid east}{%
+ \csname pgf@anchor@and gate CDH@east\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{mid west}{%
+ \csname pgf@anchor@and gate CDH@west\endcsname%
+ \pgf@xa\pgf@x%
+ \midpoint%
+ \pgf@x\pgf@xa}
+ \anchor{base}{\basepoint}%
+ \anchor{base east}{%
+ \csname pgf@anchor@and gate CDH@east\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \anchor{base west}{%
+ \csname pgf@anchor@and gate CDH@west\endcsname%
+ \pgf@xa\pgf@x%
+ \basepoint%
+ \pgf@x\pgf@xa}
+ \anchor{east}{%
+ \dimensions%
+ \pgfpointadd{\centerpoint}{\tipanchor}%
+ }
+ \anchor{output}{\csname pgf@anchor@and gate CDH@east\endcsname}
+ \anchor{north east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ \advance\pgf@y\halfheight%
+ \else%
+ \centerpoint%
+ \pgf@xa\halfwidth%
+ \pgf@ya\halfheight%
+ \pgf@xb\halfside%
+ \advance\pgf@x-.166666\pgf@xb%
+ \advance\pgf@xa\pgf@xb%
+ \advance\pgf@x.5\pgf@xa%
+ \advance\pgf@y-\pgf@xb%
+ \advance\pgf@ya\pgf@xb%
+ \advance\pgf@y.866025\pgf@ya%
+ \fi%
+ }
+ \anchor{south east}{%
+ \dimensions%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \tipanchor%
+ \pgf@xa\pgf@x%
+ \centerpoint%
+ \advance\pgf@x\pgf@xa%
+ \advance\pgf@y-\halfheight%
+ \else
+ \centerpoint%
+ \pgf@xa\halfwidth%
+ \pgf@ya\halfheight%
+ \pgf@xb\halfside%
+ \advance\pgf@x-.166666\pgf@xb%
+ \advance\pgf@xa\pgf@xb%
+ \advance\pgf@x.5\pgf@xa%
+ \advance\pgf@y\pgf@xb%
+ \advance\pgf@ya\pgf@xb%
+ \advance\pgf@y-.866025\pgf@ya%
+ \fi%
+ }
+ \anchor{north}{%
+ \dimensions%
+ \centerpoint%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@y\halfheight%
+ \else%
+ \pgf@ya\halfheight%
+ \advance\pgf@y.993043\pgf@ya%
+ \fi%
+ }
+ \anchor{south}{%
+ \dimensions%
+ \centerpoint%
+ \ifpgfgateanchorsuseboundingrectangle%
+ \advance\pgf@y-\halfheight%
+ \else%
+ \pgf@ya\halfheight%
+ \advance\pgf@y-.993043\pgf@ya%
+ \fi%
+ }
+ \anchor{south west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@y-\halfheight%
+ }
+ \anchor{north west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ \advance\pgf@y\halfheight%
+ }
+ \anchor{west}{%
+ \dimensions%
+ \centerpoint%
+ \pgf@xa\halfside%
+ \advance\pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-\outerxsep%
+ }
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{-.16666\pgf@xc}{\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{30}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{-30}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{\pgf@yc}}%
+ \pgfpathclose%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@xa\halfside%
+ \pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-.5\pgflinewidth%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ }%
+ }%
+ \anchorborder{%
+ \pgfextract@process\externalpoint{}%
+ \pgf@xa\pgf@x%
+ \pgf@ya\pgf@y%
+ \dimensions%
+ \pgf@xb\halfside%
+ %
+ \pgf@xb-.166666\pgf@xb%
+ \ifdim\pgf@xa<\pgf@xb%
+ \pgfpointadd{\centerpoint}{%
+ \pgfpointborderrectangle{\externalpoint}{%
+ \pgf@xc\halfside%
+ \pgf@xc.166666\pgf@xc%
+ \advance\pgf@xc\halfwidth%
+ \pgfqpoint{\pgf@xc}{\halfheight}%
+ }%
+ }%
+ \else%
+ \ifdim\pgf@y=0pt\relax%
+ \csname pgf@anchor@and gate CDH@east\endcsname%
+ \else%
+ \pgfextract@process\externalpoint{\pgfpointadd{\centerpoint}{\externalpoint}}%
+ \pgf@xc\halfwidth%
+ \advance\pgf@xc\halfside%
+ \pgf@yc\halfheight%
+ \advance\pgf@yc\halfside%
+ \ifdim\pgf@ya<0pt%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@y\halfside%
+ \advance\pgf@x\pgf@xb%
+ }%
+ {270}{330}{+\pgf@yc}%
+ \else%
+ \pgfmathpointintersectionoflineandarc{\externalpoint}{\centerpoint}%
+ {%
+ \centerpoint%
+ \advance\pgf@y-\halfside%
+ \advance\pgf@x\pgf@xb%
+ }%
+ {30}{90}{+\pgf@xc and +\pgf@yc}%
+ \fi%
+ \fi%
+ \fi%
+ }
+}
+
+
+\pgfdeclareshape{nand gate CDH}{%
+ \expandafter\pgfutil@g@addto@macro\csname pgf@sh@s@nand gate CDH\endcsname{%
+ \pgf@lib@sh@logicgate@parseinputs{1024}% Maximum 1024 (!) inputs.
+ %
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\pgf@lib@sh@logicgate@numinputs%
+ \else%
+ \pgfutil@ifundefined{pgf@anchor@nand gate CDH@input \pgfmathcounter}{%
+ \expandafter\xdef\csname pgf@anchor@nand gate CDH@input \pgfmathcounter\endcsname{%
+ \noexpand\pgf@lib@sh@logicgate@AND@inputanchor{\pgfmathcounter}%
+ }%
+ }{}%
+ \repeatpgfmathloop%
+ \ifnum\pgf@lib@sh@logicgate@numinputs<2\relax%
+ \PackageError{PGF}{A nand gate must have at least two inputs}{}%
+ \fi%
+ }%
+ \savedmacro\numinputs{\let\numinputs\pgf@lib@sh@logicgate@numinputs}%
+ \saveddimen\invertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ }%
+ \saveddimen\outerinvertedradius{%
+ \pgfmathsetlength\pgf@x{\pgfkeysvalueof{/pgf/logic gate inverted radius}}%
+ \advance\pgf@x.5\pgflinewidth%
+ }
+ \savedmacro\dimensions{\pgf@lib@sh@logicgates@dimensions@orUS}
+ \savedanchor\centerpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y.5\ht\pgfnodeparttextbox%
+ \advance\pgf@y-.5\dp\pgfnodeparttextbox%
+ }
+ \savedanchor\midpoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgfmathsetlength\pgf@y{+0.5ex}%
+ }
+ \savedanchor\basepoint{%
+ \pgf@x.5\wd\pgfnodeparttextbox%
+ \pgf@y0pt%
+ }
+ \anchor{center}{\centerpoint}%
+ \anchor{mid}{\midpoint}%
+ \inheritanchor[from=and gate CDH]{mid east}
+ \inheritanchor[from=and gate CDH]{mid west}
+ \anchor{base}{\basepoint}%
+ \inheritanchor[from=and gate CDH]{base east}
+ \inheritanchor[from=and gate CDH]{base west}
+ \anchor{output}{%
+ \dimensions
+ \pgfpointadd{\centerpoint}{%
+ \pgf@xa\halfside%
+ \pgf@x-.166666\pgf@xa%
+ \pgf@xb2.0\pgf@xa%
+ \advance\pgf@x.866025\pgf@xb%
+ \advance\pgf@x\invertedradius%
+ \advance\pgf@x\outerinvertedradius%
+ \advance\pgf@x\outerxsep%
+ \pgf@y0pt%
+ }%
+ }
+ \inheritanchor[from=and gate CDH]{east}
+ \inheritanchor[from=and gate CDH]{north east}
+ \inheritanchor[from=and gate CDH]{south east}
+ \inheritanchor[from=and gate CDH]{north}
+ \inheritanchor[from=and gate CDH]{south}
+ \inheritanchor[from=and gate CDH]{south west}
+ \inheritanchor[from=and gate CDH]{north west}
+ \inheritanchor[from=and gate CDH]{west}
+ \backgroundpath{%
+ \dimensions%
+ \pgf@xc\halfwidth%
+ \pgf@yc\halfheight%
+ \advance\pgf@xc-\outerxsep%
+ \advance\pgf@yc-\outerysep%
+ {%
+ \pgftransformshift{\centerpoint}%
+ \pgfpathmoveto{\pgfqpoint{-.16666\pgf@xc}{\pgf@yc}}%
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{90}{30}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ {%
+ \pgf@yc2.0\pgf@yc%
+ \edef\pgf@marshal{%
+ \noexpand\pgfpatharc{-30}{-90}{\the\pgf@yc}%
+ }%
+ \pgf@marshal%
+ }
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{-\pgf@yc}}%
+ \pgfpathlineto{\pgfqpoint{-1.16666\pgf@xc}{\pgf@yc}}%
+ \pgfpathclose%
+ %
+ % Draw the output inverter.
+ %
+ {%
+ \pgfpathcircle{%
+ \pgf@x-.166666\pgf@xc%
+ \pgf@yc2.0\pgf@yc%
+ \advance\pgf@x.866025\pgf@yc%
+ \advance\pgf@x\outerinvertedradius%
+ \pgf@y0pt%
+ }{+\invertedradius}%
+ }%
+ %
+ % Draw the inputs.
+ %
+ \pgfutil@tempdima2.0\pgf@yc%
+ \c@pgf@counta\numinputs%
+ \advance\c@pgf@counta1\relax%
+ \divide\pgfutil@tempdima\c@pgf@counta%
+ \pgfmathloop%
+ \ifnum\pgfmathcounter>\numinputs%
+ \else%
+ \advance\pgf@yc-\pgfutil@tempdima%
+ \expandafter\ifx\expandafter\pgf@lib@sh@itext\csname input-\pgfmathcounter\endcsname%
+ {%
+ \pgfpathcircle{%
+ \pgf@xa\halfside%
+ \pgf@x-1.16666\pgf@xa%
+ \advance\pgf@x-.5\pgflinewidth%
+ \advance\pgf@x-\invertedradius%
+ \pgf@y\pgf@yc%
+ }{+\invertedradius}%
+ }%
+ \fi%
+ \repeatpgfmathloop%
+ }%
+ }%
+ \inheritanchorborder[from=and gate CDH]
+} \ No newline at end of file