<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% This is file 'tikz-bagua.sty'
%%
%% Developed by WANG Xu
%% Copyright (C) 2021 by WANG Xu &lt;cwangx@hotmail.com&gt;
%%
%% It may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License (LPPL).
%%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{tikz-bagua}[2022/08/04 v1.01 draw Bagua in Yijing via tikz package]

\RequirePackage{tikz}
\RequirePackage{xstring}
\RequirePackage{bitset}
\RequirePackage{xparse}
\RequirePackage{xintexpr}

%%\taiji[&lt;scale&gt;]
\NewDocumentCommand\taiji{sO{1}}{% taiji yinyang
  \IfDecimal{#2}{% % check whether #2 is decimal number 
    \IfBooleanTF#1% %check whether a star is exist
    {% begin of a star seen
      \begin{tikzpicture}[baseline=1.9074,scale=0.17646*#2]
        \fill plot [domain=0:180,smooth] ({\x*1/180*cos(\x-90)},{\x*1/180*sin(\x-90)+1}) -- (0,2) arc (90:-90:1)  plot [domain=0:180,smooth] ({\x*1/180*cos(\x+90)},{\x*1/180*sin(\x+90)+1});
        \draw (0,1) circle (1);
        
        \fill (0.25,0.25/pi+1) circle ({0.25/exp(1)});
        \fill [fill=white] (-0.25,-0.25/pi+1) circle ({0.25/exp(1)});
      \end{tikzpicture}
    }% end of a star seen
    {%
      \begin{tikzpicture}[baseline=1.9074,scale=0.17646*#2]
        \fill plot [domain=0:180,smooth] ({\x*1/180*cos(\x-90)},{\x*1/180*sin(\x-90)+1}) -- (0,2) arc (90:-90:1)  plot [domain=0:180,smooth] ({\x*1/180*cos(\x+90)},{\x*1/180*sin(\x+90)+1});
        \draw (0,1) circle (1);
      \end{tikzpicture}
    }%
  }{\@latex@error{Error! Please check whether \#1 is decimal number.}{}}%
}

%%\xtaiji[&lt;scale&gt;]
\NewDocumentCommand\xtaiji{sO{1}}{% taiji yinyang
  \IfDecimal{#2}{% % check whether #2 is decimal number 
    \IfBooleanTF#1% %check whether a star is exist
    {% begin of a star seen
      \begin{tikzpicture}[baseline=1.9074,scale=0.17646*#2]
        \fill (0,0) arc (270:90:0.5) arc (-90:90:0.5) arc (90:-90:1);
        \draw (0,1) circle (1);
        
        \fill [fill=white] (0,0.5) circle ({0.25/exp(1)});
        \fill (0,1.5) circle ({0.25/exp(1)});
      \end{tikzpicture}
    }% end of a star seen
    {%
      \begin{tikzpicture}[baseline=1.9074,scale=0.17646*#2]
        \fill (0,0) arc (270:90:0.5) arc (-90:90:0.5) arc (90:-90:1);
        \draw (0,1) circle (1);
      \end{tikzpicture}
    }%
  }{\@latex@error{Error! Please check whether \#1 is decimal number.}{}}%
}


%%\drawliangyi[&lt;yshift&gt;]{&lt;0 or 1&gt;}
\newcommand\drawliangyi[2][0]{%
	\ifnum #2=0 \draw [line width=0.0816em] (0,#1) -- (1em/3,#1) (2em/3,#1) -- (1em,#1)%;%
	\else%
		\ifnum #2=1 \draw [line width=0.0816em] (0,#1) -- (1em,#1)%;%
		\else \node {Error!}%
		\fi%
	\fi%
}

%%\liangyi{&lt;0 or 1&gt;}[&lt;scale&gt;]
\NewDocumentCommand\liangyi{mO{1}}{%
	\IfInteger{#1}{%
		\xintifboolexpr{#1 == 0 || #1 == 1}{%
			\begin{tikzpicture}[baseline=-0.3em,scale=#2]%
				\drawliangyi{#1};%
		\end{tikzpicture}}{\@latex@error{Error! Please check whether \#1 is 0 or 1.}{}}%
	}{\@latex@error{Error! Please check whether \#1 is integer.}{}}%
}

%%\sixiang{&lt;binary&gt;}[&lt;scale&gt;]
%%\sixiang*{&lt;decimal&gt;}[&lt;scale&gt;]
\NewDocumentCommand\sixiang{smO{1}}{% \sixiang{11}=\sixiang*{3}
	\IfInteger{#2}{% begin of if #2 is an integer
		\IfBooleanTF#1%
		{\xintifboolexpr{#2 &gt;= 0 &amp;&amp; #2 &lt; 4}% begin of If a star is seen
			{\bitsetSetDec{sixiangdec}{#2}%
				\begin{tikzpicture}[baseline=-0.5em,scale=#3]%[baseline=-0.225em] 
					\foreach \j in {1,0}
					{
						\drawliangyi[-\j*0.408em]{\bitsetGet{sixiangdec}{\j}};
					}
			\end{tikzpicture}}{\@latex@error{Error! Please check whether 0&lt;=\#1&lt;4.}{}}%
		}% end of If a star is seen
		{\StrLen{#2}[\lengthforbinary]%begin of binary
			\xintifboolexpr{\lengthforbinary=1 || \lengthforbinary=2}{%
				\bitsetSetBin{sixiangbin}{#2}%
				\begin{tikzpicture}[baseline=-0.5em,scale=#3]%[baseline=-0.225em]
					\foreach \j in {1,0}
					{
						\drawliangyi[-\j*0.408em]{\bitsetGet{sixiangbin}{\j}};
					}
				\end{tikzpicture}%
			}{\@latex@error{Error! Please check whether 0&lt;=\#1&lt;=11.}{}}%end of binary
		}%     If no star is seen
	}% end of if #2 is an integer
	{\@latex@error{Error! Please check whether \#1 is integer.}{}}% else #2 is not an integer
}

%%\bagua{&lt;binary&gt;}[&lt;scale&gt;]
%%\bagua*{&lt;decimal&gt;}[&lt;scale&gt;]
\NewDocumentCommand\bagua{smO{1}}{% \bagua{101}=\bagua*{5}
	\IfInteger{#2}{% begin of if #2 is an integer
		\IfBooleanTF#1%
		{%% begin of If a star is seen
			\bitsetSetDec{baguadec}{#2}%
			\xintifboolexpr {#2 &gt;= 0 &amp;&amp; #2 &lt;8}
			{%
				\begin{tikzpicture}[baseline=-0.714em,scale=#3]
					\foreach \j in {2,1,0}
					{
						\drawliangyi[-\j*0.408em]{\bitsetGet{baguadec}{\j}};
					}
				\end{tikzpicture}%
			}%
			{\@latex@error{Error! Please check whether 0&lt;=\#1&lt;8.}{}}%
		}%% end of If a star is seen
		{%% begin of If no star is seen
			\bitsetSetBin{baguabin}{#2}%
			\StrLen{#2}[\lengthforbinary]%
			\xintifboolexpr{\lengthforbinary &gt; 0 &amp;&amp; \lengthforbinary &lt;4}%
			{%
				\begin{tikzpicture}[baseline=-0.714em,scale=#3]
					\foreach \j in {2,1,0}
					{
						\drawliangyi[-\j*0.408em]{\bitsetGet{baguabin}{\j}};
					}
				\end{tikzpicture}%
			}%
			{\@latex@error{Error! Please check whether 0&lt;=\#1&lt;1000.}{}}%
		}%% end of If no star is seen
	}% end of if #2 is an integer
	{\@latex@error{Error! Please check whether \#1 is integer.}{}}% else #2 is not an integer
}

%%\Bagua[&lt;2 default, 8&gt;]{&lt;binary, octal&gt;}[&lt;scale&gt;]
%%\Bagua*{&lt;decimal&gt;}[&lt;scale&gt;]
\NewDocumentCommand\Bagua{sO{2}mO{1}}{% \bagua{101110}=\bagua[8]{56}=\bagua*{46}
	\IfInteger{#3}{% begin of if #3 is an integer
		\IfBooleanTF#1%
		{%% begin of If a star is seen
			\bitsetSetDec{baguadec}{#3}%
			\xintifboolexpr {#3 &gt;= 1 &amp;&amp; #3 &lt; 64}%
			{%
				\begin{tikzpicture}[baseline=-0.714em,scale=#4]
					\foreach \j in {5,4,...,0}
					{
						\drawliangyi[-\j*0.1632em]{\bitsetGet{baguadec}{\j}};
					}
				\end{tikzpicture}%
			}{\@latex@error{Error! Please check whether 0&lt;=\#2&lt;64.}{}}%
		}%% end of If a star is seen
		{%% begin of If no star is seen
			\ifnum#2=2%
			\bitsetSetBin{baguabin}{#3}%
			\StrLen{#3}[\lengthforbinary]%
			\xintifboolexpr{\lengthforbinary &gt;= 1 &amp;&amp; \lengthforbinary &lt; 7}%
			{%
				\begin{tikzpicture}[baseline=-0.714em,scale=#4]
					\foreach \j in {5,4,...,0}
					{
						\drawliangyi[-\j*0.1632em]{\bitsetGet{baguabin}{\j}};
					}
				\end{tikzpicture}%
			}{\@latex@error{Error! Please check whether 0&lt;=\#2&lt;1000000.}{}}%
			\else%
			\ifnum#2=8%
			\bitsetSetOct{baguaoct}{#3}%
			\StrLen{#3}[\lengthforoct]%
			\xintifboolexpr{\lengthforoct == 1 || \lengthforoct == 2}%
			{%
				\begin{tikzpicture}[baseline=-0.714em,scale=#4]
					\foreach \j in {5,4,...,0}
					{
						\drawliangyi[-\j*0.1632em]{\bitsetGet{baguaoct}{\j}};
					}%
				\end{tikzpicture}%
			}{\@latex@error{Error! Please check whether 0&lt;=\#2&lt;100.}{}}%
			\else{\@latex@error{Error! Please check whether \#1 is default (2) or 8.}{}}\fi%
			\fi%
		}%% end of If no star is seen
	}% end of if #3 is an integer
	{\@latex@error{Error! Please check whether \#2 is integer.}{}}% else #3 is not an integer
}

\endinput
%%
%% End of file 'tikz-bagua.sty'</pre></body></html>