PGFPlots：如何透過軸選擇性地剪輯特定標記？

Question

在此 MWE 中，我需要透過軸剪掉黃色方塊標記，同時保持紅色菱形標記完好無損。

\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\begin{document}
    \begin{tikzpicture}
        \begin{axis}[
            xmin=0, xmax=1,
            ymin=0, ymax=1,
            domain=0:1,
            every axis plot post/.append style={
                line width=2pt,
            }
        ]
            \addplot [ mark=square*, mark size=4pt,
            mark options={fill=yellow, line width = 0.5pt}, samples = 3 ] {x};
            \addplot [ only marks,  mark=diamond*, mark size=5pt,
            mark options={fill=red, line width = 0.5pt}, samples = 2 ] {x};
        \end{axis}
    \end{tikzpicture}
\end{document}

---

附錄

clip marker paths使用圖層時該選項不起作用。這種情況該如何解決呢？

\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=newest,
layers/my layer set/.define layer set={bg,main,fg}{},
set layers=my layer set,
mark layer=like plot}
\begin{document}
    \begin{tikzpicture}
        \begin{axis}[
            xmin=0, xmax=1,
            ymin=0, ymax=1,
            domain=0:1,
            every axis plot post/.append style={
                line width=2pt,
            }
        ]
            \addplot [ mark=square*, mark size=4pt,
            mark options={fill=yellow, line width = 0.5pt}, samples = 3, clip marker paths, on layer = bg ] {x};
            \addplot [ only marks,  mark=diamond*, mark size=5pt,
            mark options={fill=red, line width = 0.5pt}, samples = 2, on layer = fg ] {x};
        \end{axis}
    \end{tikzpicture}
\end{document}

Answer 1

將選項新增clip marker paths至繪圖中，進行黃色標記。

編輯：正如所指出的，這在使用圖層時不起作用。然而，使用clip mode=individual它似乎是有效的。

\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=newest,
layers/my layer set/.define layer set={bg,main,fg}{},
set layers=my layer set,
mark layer=like plot}
\begin{document}
    \begin{tikzpicture}
        \begin{axis}[
            xmin=0, xmax=1,
            ymin=0, ymax=1,
            domain=0:1,
            every axis plot post/.append style={
                line width=2pt,
            }
        ]
            \addplot [ mark=square*, mark size=4pt,
            mark options={fill=yellow, line width = 0.5pt}, samples = 3, on layer = bg,
            clip mode=individual % <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
            ] {x};
            \addplot [ only marks,  mark=diamond*, mark size=5pt,
            mark options={fill=red, line width = 0.5pt}, samples = 2, on layer = fg ] {x};
        \end{axis}
    \end{tikzpicture}
\end{document}