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Pasar xticklabels a tikzpicture a través de un entorno

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Pasar xticklabels a tikzpicture a través de un entorno

Tengo algunos diagramas que deben repetirse numerosas veces en un documento con ligeras variaciones, así que pensé en crear un entorno que genere los diagramas y pase las variaciones como opciones. Sin embargo, tengo problemas para pasar xticks y xticklabels, creo que porque son listas.

Este fue mi primer intento, que no compila:

\documentclass{article}

\usepackage{pgfplots}
\usepackage{tikz}
\usepackage{environ}

\makeatletter
\newcommand{\@tikzexamplecommand}[2][]{%
  \pgfqkeys{/pgfplots}{remainingkeys/.style={}}%
  \pgfqkeys{/tikzangle}{%
    % save unknown keys in /pgfplots/remainingkeys; code from
    % http://tex.stackexchange.com/questions/22952/how-do-you-pass-unknown-keys-as-options-to-a-tikz-picture
    .unknown/.code={%
      \let\currname\pgfkeyscurrentname%
      \let\currval\pgfkeyscurrentvalue%
      \ifx#1\pgfkeysnovalue%
      \pgfqkeys{/pgfplots}{remainingkeys/.append style/.expand once={\currname}}%
      \else%
      \pgfqkeys{/pgfplots}{remainingkeys/.append style/.expand twice={\expandafter\currname\expandafter=\currval}}%
      \fi%
    },%
    #1}%
  % 
  \begin{tikzpicture}
    \begin{axis}[xticklabels=auto, /pgfplots/remainingkeys]
      \addplot+[domain=-10:10] {x};
      #2
    \end{axis}
  \end{tikzpicture}%
}

\NewEnviron{tikzexample}[1][]{\@tikzexamplecommand[#1]{\BODY}}
\makeatother

\begin{document}

\begin{tikzexample}[xtick={-5, 5}, xticklabels={$\alpha$, $\beta$}]
\end{tikzexample}

\end{document}

Entonces pensé en crear claves xtick y xticklabels en mi entorno y pasarlas explícitamente:

\documentclass{article}

\usepackage{pgfplots}
\usepackage{tikz}
\usepackage{environ}

\makeatletter
\newcommand{\tikzexample@xtick}{auto}
\newcommand{\tikzexample@xticklabels}{auto}
\pgfkeys{/tikzangle/.cd,% to set the path
  xtick/.initial=auto,
  xtick/.store in=\tikzexample@xtick,
  xtick/.get=\tikzexample@xtick,
  xticklabels/.initial=auto,
  xticklabels/.store in=\tikzexample@xticklabels,
  xticklabels/.get=\tikzexample@xticklabels,
}

\newcommand{\@tikzexamplecommand}[2][]{%
  \pgfqkeys{/pgfplots}{remainingkeys/.style={}}%
  \pgfqkeys{/tikzangle}{%
    % save unknown keys in /pgfplots/remainingkeys; code from
    % http://tex.stackexchange.com/questions/22952/how-do-you-pass-unknown-keys-as-options-to-a-tikz-picture
    .unknown/.code={%
      \let\currname\pgfkeyscurrentname%
      \let\currval\pgfkeyscurrentvalue%
      \ifx#1\pgfkeysnovalue%
      \pgfqkeys{/pgfplots}{remainingkeys/.append style/.expand once={\currname}}%
      \else%
      \pgfqkeys{/pgfplots}{remainingkeys/.append style/.expand twice={\expandafter\currname\expandafter=\currval}}%
      \fi%
    },%
    #1}%
  % 
  \begin{tikzpicture}
    \begin{axis}[xtick=\tikzexample@xtick, xticklabels=\tikzexample@xticklabels, /pgfplots/remainingkeys]
      \addplot+[domain=-10:10] {x};
      #2
    \end{axis}
  \end{tikzpicture}%
}

\NewEnviron{tikzexample}[1][]{\@tikzexamplecommand[#1]{\BODY}}
\makeatother

\begin{document}
\begin{tikzexample}[xtick={-5, 5}, xticklabels={$\alpha$, $\beta$}]

\end{tikzexample}
\end{document}

Esto proporciona los xticks correctos, pero {$\alpha$, $\beta$} se lee como una etiqueta de tick:

producción

¿Qué debo hacer para poder pasar xticklabels correctamente a mi entorno?

Respuesta1

Después de profundizar en el código de pgfplots, se me ocurrió esta solución. En realidad no entiendo qué hace esto, pero parece funcionar agregar el siguiente código de manejo de claves:

  xticklabels/.code={%
    \pgfplotslistnew\tikzexample@xticklabels{#1}%
    \let\pgfplots@xticklabels=\tikzexample@xticklabels
    \let\pgfplots@xticklabel=\pgfplots@user@ticklabel@list@x    
  },

Aquí está el ejemplo completo:

\documentclass{article}

\usepackage{pgfplots}
\usepackage{tikz}
\usepackage{environ}

\makeatletter

\newcommand{\tikzexample@xtick}{auto}
\pgfkeys{/tikzexample/.cd,% to set the path
  xtick/.initial=auto,
  xtick/.store in=\tikzexample@xtick,
  xtick/.get=\tikzexample@xtick,
  xticklabels/.code={%
    \pgfplotslistnew\tikzexample@xticklabels{#1}%
    \let\pgfplots@xticklabels=\tikzexample@xticklabels
    \let\pgfplots@xticklabel=\pgfplots@user@ticklabel@list@x    
  },
}

\newcommand{\@tikzexamplecommand}[2][]{%
  \pgfqkeys{/pgfplots}{remainingkeys/.style={}}%
  \pgfqkeys{/tikzexample}{%
    % save unknown keys in /pgfplots/remainingkeys; code from
    % http://tex.stackexchange.com/questions/22952/how-do-you-pass-unknown-keys-as-options-to-a-tikz-picture
    .unknown/.code={%
      \let\currname\pgfkeyscurrentname%
      \let\currval\pgfkeyscurrentvalue%
      \ifx#1\pgfkeysnovalue%
      \pgfqkeys{/pgfplots}{remainingkeys/.append style/.expand once={\currname}}%
      \else%
      \pgfqkeys{/pgfplots}{remainingkeys/.append style/.expand twice={\expandafter\currname\expandafter=\currval}}%
      \fi%
    },%
    #1}%
  \begin{tikzpicture}
    \begin{axis}[xtick=\tikzexample@xtick, /pgfplots/remainingkeys]
      \addplot+[domain=-10:10] {x};
      #2
    \end{axis}
  \end{tikzpicture}%
}

\NewEnviron{tikzexample}[1][]{\@tikzexamplecommand[#1]{\BODY}}
\makeatother

\begin{document}
\begin{tikzexample}[xtick={-5, 5}, xticklabels={$\alpha$, $\beta$}]

\end{tikzexample}
\end{document}

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