如何调整 TikZ 垂直条形图中的列宽？

Question

我使用 TikZ 创建了一个垂直条形图。以下是代码：

\begin{figure}[!htbp]
\centering
\begin{tikzpicture}
\begin{axis}[
    ybar=0pt,
    % enlargelimits=0.15,
    width=\columnwidth,
    % ymin=90,
    ylabel={Number of non-redundant filters},
    symbolic x coords={Layer 1, Layer 2, Layer 3, Layer 4, Layer 5},
    xtick=data,
    bar width=8pt,
    legend style={ 
        at={(0.25,1.0)},
        anchor=north,
        legend columns=1,
    },
    % legend to name={mylegend},
    axis x line*=bottom,
    axis y line*=left,
    xticklabel style={rotate=0, font=\footnotesize},
]
\addplot [teal, fill, opacity=0.7, nodes near coords,every node near coord/.append style={xshift=5pt,yshift=12pt,font=\footnotesize,rotate=90, opacity=1}]coordinates {(Layer 1, 44) (Layer 2, 78) (Layer 3, 139) (Layer 4, 247) (Layer 5, 227)};
\addplot [orange, fill, opacity=0.7, nodes near coords,every node near coord/.append style={xshift=5pt,yshift=12pt,font=\footnotesize,rotate=90, opacity=1}]coordinates {(Layer 1, 40) (Layer 2, 71) (Layer 3, 121) (Layer 4, 206) (Layer 5, 168)};
\addplot [blue, fill, opacity=0.7, nodes near coords,every node near coord/.append style={xshift=5pt,yshift=12pt,font=\footnotesize,rotate=90, opacity=1}]coordinates {(Layer 1, 38) (Layer 2, 61) (Layer 3, 108) (Layer 4, 186) (Layer 5, 155)};
\addplot [cyan, fill, opacity=0.7, nodes near coords,every node near coord/.append style={xshift=5pt,yshift=12pt,font=\footnotesize,rotate=90, opacity=1}]coordinates {(Layer 1, 38) (Layer 2, 61) (Layer 3, 108) (Layer 4, 184) (Layer 5, 154)};
\addplot [red, fill, opacity=0.7, nodes near coords,every node near coord/.append style={xshift=5pt,yshift=12pt,font=\footnotesize,rotate=90, opacity=1}]coordinates {(Layer 1, 48) (Layer 2, 90) (Layer 3, 166) (Layer 4, 307) (Layer 5, 282)};
\legend{Random search, CHIP \cite{Sui2021CHIPCI}, FPC \cite{chen2022fpc}, SPSRC \cite{sun2024towards}, GEM (Ours)}
\end{axis}
\end{tikzpicture}
% \ref{mylegend}
\caption{Non-redundant selected filters with SVGG.}
\label{fig:rank}
\end{figure}

结果：

但是，我面临的问题是列太多（每个类别 5 个），这导致某些列被截断，并且每个类别（第 1 层与第 2 层）之间的空间太小。我该如何设置列的宽度以使其变小并将它们全部放入图片中？

此外，我希望得到有关重构此图以使其更具视觉吸引力的建议。我正在考虑将其转换为水平条形图。

在此先感谢您的帮助。