如何將左上角位置設定為節點的錨點（TikZ）

Question

有沒有辦法根據邊界矩形的左/右座標來定位節點？在我看來，我只能指定中心位置。

Answer 1

如果要在給定座標處左對齊或右對齊節點，請在節點上使用anchor = east/選項。anchor=west以下是居中、右對齊和左對齊的範例：

\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}