After reading "Tikz shape similar to rectangle with selective drawing of borders," I tried to compile the following code:
\documentclass[tikz]{standalone}
\usetikzlibrary{chains} \usetikzlibrary{qrr.shapes.openrectangle}
\tikzset{nodes={rounded corners, text height=\heightof{f}, text width=\widthof{aaaa}, ultra thick, draw, open rectangle fill=blue!40, shape=open rectangle,
append after command={(\tikzlastnode.south west) edge[to path={rectangle (\tikztotarget)}, very thin] (\tikzlastnode.north east)}}}
\begin{document}
\begin{tikzpicture}[x=1.1cm, Start chain/.style={start chain=ch#1 going below}, Start chain/.list={1,...,4}, node distance=+2pt]\ttfamily
\foreach \ch/\si in {1/{e, n, w, s},
2/{nws, ews, ens, enw},
3/{en, nw, ws, es},
4/{, full, ew, ns}}
\foreach \Si in \si
\node[at=(right:\ch), on chain=ch\ch, open rectangle sides=\Si] {\Si};
\end{tikzpicture}
\end{document}
but received the following error:
! I can't find file `pgflibraryqrr.shapes.openrectangle.code.tex'.
<argument> ...input pgflibrary\pgf@temp .code.tex
I checked my MiKTeX installation, and the epigraph package is included therein.
How do I resolve this issue?
