如何将左上角位置设置为节点的锚点（TikZ）

Question

有没有办法根据边界矩形的左/右坐标来定位节点？在我看来，我只能指定中心位置。

Answer 1

如果要在给定坐标处将节点左对齐或右对齐，请使用节点上的anchor = east/选项。以下是居中、右对齐和左对齐的示例：anchor=west

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{backgrounds}

\begin{document}


\begin{tikzpicture}[framed]
    \useasboundingbox (0,0) rectangle (4,4);
    \node at (2,2) {gnarply};
    \draw (2,2)--(3,3);
\end{tikzpicture}\qquad
\begin{tikzpicture}[framed]
    \useasboundingbox (0,0) rectangle (4,4);
    \node[anchor=west] at (2,2) {gnarply};
    \draw (2,2)--(3,3);
\end{tikzpicture}\qquad
\begin{tikzpicture}[framed]
    \useasboundingbox (0,0) rectangle (4,4);
    \node[anchor=east] at (2,2) {gnarply};
    \draw (2,2)--(3,3);
\end{tikzpicture}

\end{document}