如何使用 TikZ 绘制边缘（角）上有文字的等边三角形？

Question

我想绘制一个三角形，其边缘（角）上有文字，如图所示。

MWE [修改自1] 是：

\documentclass[border=5mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric}

\tikzset{
    buffer/.style={
        draw,
        shape border rotate=90,
        isosceles triangle,
        isosceles triangle apex angle=60,
        node distance=2cm,
        minimum height=2em
    }
}
\begin{document}
\begin{tikzpicture}
\node[buffer]{Text};
\draw node[above]{Text};
\end{tikzpicture}


\end{document}

Answer 1

这里有两个解决方案。一个是将文本节点放置在三角形后面，另一个是使用三个标签来放置文本。

\documentclass[border=5mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric, positioning}

\tikzset{
    buffer/.style={
        draw,
        shape border rotate=90,
        isosceles triangle,
        isosceles triangle apex angle=60,
        node distance=2cm,
        minimum height=2em
    },
    textblock/.style={text width=2cm, inner sep=0pt, align=#1},
}
\begin{document}

\begin{tikzpicture}
\node[buffer] (a) {Text.in};
\node[textblock=center, above= 1mm of a]{Some text text text text text text};
\node[textblock=left, above right= 0mm and 0mm of a.right corner]{Right text text text text text text text};
\node[textblock=right, above left= 0mm and 0mm of a.left corner]{Left text text text text text text text};
\end{tikzpicture}

\begin{tikzpicture}
\node[buffer, label={[textblock=center]above:Above text text},
label={[textblock=left, anchor=south west]right corner:Right text text},
label={[textblock=right, anchor=south east]left corner:Left text text},
] (a) {Text.in};
\end{tikzpicture}

\end{document}