tengo el siguiente grafico
Como puede ver, el subtítulo (b)no está centrado desde la subfigura correspondiente como (a). Si aumento el valor [.51\linewidth]sucederán cosas no deseadas. Estoy usando subcaptionel paquete with memoirporque las herramientas de memorias nativas para subfigures muestran problemas con la descarga correcta. El código de la imagen de arriba es:
\documentclass[11pt]{memoir}
\setstocksize{23cm}{15.9cm}
\settrimmedsize{23cm}{15.9cm}{*}
\settrims{0pt}{0pt}
\settypeblocksize{17.8cm}{11.3cm}{*}
\setlrmargins{2.3cm}{*}{*}
\setulmargins{6.4\onelineskip}{*}{*}
\setheadfoot{1.18\onelineskip}{\onelineskip}
\setheaderspaces{4.1\onelineskip}{*}{*}
\checkandfixthelayout[lines]
\usepackage{amsmath,amssymb,amsthm}
\usepackage[english]{babel}
\usepackage{blindtext}
\usepackage{subcaption}
\usepackage{tikz,pgfplots}
\pgfplotsset{compat=1.10}
\usepgfplotslibrary{fillbetween}
\usetikzlibrary{arrows}
\pgfplotsset{
/pgfplots/area style/.style={%
area cycle list,
area legend,
axis on top,
}}
\begin{document}
\blindtext\blindtext
\begin{figure}[b]
%\centering
\subcaptionbox{A cat\label{cat}}{\begin{tikzpicture}[scale=0.71]
\begin{axis}[axis equal,axis on top,axis lines=center,enlargelimits=false,xlabel=$x(t)$,ylabel=$y(t)$,xmax=2.5,xmin=-2.2,ymax=2.5,ymin=-2.2,area legend,xtick=\empty,ytick= \empty %,legend entries={$\Ran f$}]
\addplot[draw=blue!30!white,fill=blue!30!white,
domain=-2:2,samples=120] {sqrt(4-x^2)};
%\addlegendimage{fill=blue!30!white,area legend}
%\addlegendentry{$\Ran f$}
\addplot[draw=blue!30!white,fill=blue!30!white,
domain=-2:2,samples=120] {-sqrt(4-x^2)};
\addplot[white,fill,
domain=-1:1,samples=120] {sqrt(1-x^2)};
\addplot[white,fill,
domain=-1:1,samples=120] {-sqrt(1-x^2)};
%\node at (380,170) {$x'(t)$};
%\node at (20,170) {$y'(t)$};
\end{axis}
\end{tikzpicture}}
\subcaptionbox{An elephant\label{elephant}}[.51\linewidth]
{\begin{tikzpicture}[scale=0.71,/pgf/declare function={f=1/x;}]
\begin{axis}[axis x line=center,axis y line=center,xtick=\empty,ytick= \empty,xlabel=$x(t)$,
ylabel=$y(t)$,]
\addplot [red!30!white,name path=f,domain=-3:3, samples=60] {f};
\path[name path=axis] (axis cs:\pgfkeysvalueof{/pgfplots/xmin},0) -- (axis cs:\pgfkeysvalueof{/pgfplots/xmax},0);
\addplot[red!30!white] fill between[of=f and axis];
\end{axis}
\end{tikzpicture}}
\caption{Two animals}\label{animals}
\end{figure}
\end{document}
¿Cómo controlo eso?
Respuesta1
En vez de pasar scale=0.71pasarlo tikzpicturea las axisopciones. También he añadido ylabel style={anchor=west}poner y etiquetar poco arriba.
\documentclass[11pt]{memoir}
\setstocksize{23cm}{15.9cm}
\settrimmedsize{23cm}{15.9cm}{*}
\settrims{0pt}{0pt}
\settypeblocksize{17.8cm}{11.3cm}{*}
\setlrmargins{2.3cm}{*}{*}
\setulmargins{6.4\onelineskip}{*}{*}
\setheadfoot{1.18\onelineskip}{\onelineskip}
\setheaderspaces{4.1\onelineskip}{*}{*}
\checkandfixthelayout[lines]
\usepackage{amsmath,amssymb,amsthm}
\usepackage[english]{babel}
\usepackage{blindtext}
\usepackage{subcaption}
\usepackage{tikz,pgfplots}
\pgfplotsset{compat=1.10}
\usepgfplotslibrary{fillbetween}
\usetikzlibrary{arrows}
\pgfplotsset{
/pgfplots/area style/.style={%
area cycle list,
area legend,
axis on top,
}}
\begin{document}
\blindtext\blindtext
\begin{figure}[b]
%\centering
\subcaptionbox{A cat\label{cat}}{\begin{tikzpicture}
\begin{axis}[scale=0.71,axis equal,axis on top,axis lines=center,enlargelimits=false,xlabel=$x(t)$,ylabel=$y(t)$,xmax=2.5,xmin=-2.2,ymax=2.5,ymin=-2.2,area legend,xtick=\empty,ytick= \empty,
ylabel style={anchor=west} %,legend entries={$\Ran f$}
]
\addplot[draw=blue!30!white,fill=blue!30!white,
domain=-2:2,samples=120] {sqrt(4-x^2)};
%\addlegendimage{fill=blue!30!white,area legend}
%\addlegendentry{$\Ran f$}
\addplot[draw=blue!30!white,fill=blue!30!white,
domain=-2:2,samples=120] {-sqrt(4-x^2)};
\addplot[white,fill,
domain=-1:1,samples=120] {sqrt(1-x^2)};
\addplot[white,fill,
domain=-1:1,samples=120] {-sqrt(1-x^2)};
%\node at (380,170) {$x'(t)$};
%\node at (20,170) {$y'(t)$};
\end{axis}
\end{tikzpicture}}
\subcaptionbox{An elephant\label{elephant}}[.51\linewidth]
{\begin{tikzpicture}[/pgf/declare function={f=1/x;}]
\begin{axis}[scale=0.71,axis x line=center,axis y line=center,xtick=\empty,ytick= \empty,xlabel=$x(t)$,
ylabel=$y(t)$,,
ylabel style={anchor=west}]
\addplot [red!30!white,name path=f,domain=-3:3, samples=60] {f};
\path[name path=axis] (axis cs:\pgfkeysvalueof{/pgfplots/xmin},0) -- (axis cs:\pgfkeysvalueof{/pgfplots/xmax},0);
\addplot[red!30!white] fill between[of=f and axis];
\end{axis}
\end{tikzpicture}}
\caption{Two animals}\label{animals}
\end{figure}
\end{document}
