12.3.4 Hexagon Diagram
Define
\newlength{\OneCmPlusHalf}
\setlength{\OneCmPlusHalf}{1.5cm}
The code
\begin{tikzcd}[row sep={0.0*\the\DL,between origins}, column sep={0.0*\the\DL,between origins}, background color=backgroundColor, ampersand replacement=\&]
\&[0.86602540378\OneCmPlusHalf]
1
\&[0.86602540378\OneCmPlusHalf]
\\[0.5\OneCmPlusHalf]
2
\&[0.86602540378\OneCmPlusHalf]
\&[0.86602540378\OneCmPlusHalf]
3
\\[\OneCmPlusHalf]
4
\&[0.86602540378\OneCmPlusHalf]
\&[0.86602540378\OneCmPlusHalf]
5
\\[0.5\OneCmPlusHalf]
\&[0.86602540378\OneCmPlusHalf]
6
\&[0.86602540378\OneCmPlusHalf]
% 1-Arrows
% Left Boundary
\arrow[from=1-2,to=2-1,"L_{1}"']%
\arrow[from=2-1,to=3-1,"L_{2}"']%
\arrow[from=3-1,to=4-2,"L_{3}"']%
% Right Boundary
\arrow[from=1-2,to=2-3,"R_{1}"]%
\arrow[from=2-3,to=3-3,"R_{2}"]%
\arrow[from=3-3,to=4-2,"R_{3}"]%
\end{tikzcd}
will produce the following hexagon diagram:
To make the diagram larger, one could use e.g.
\newlength{\TwoCm}
\setlength{\TwoCm}{2.0cm}
and replace all instances of \OneCmPlusHalf with \TwoCm in the code above.