节点放置、循环和缩放

Question

在最简单的情况下，我有一个正方形，其边应被标记。然后我移动正方形，要么手动向每个点的 x 或 y 坐标添加偏移量，要么使用xshift和yshift。只要我指定通过五个点的路径，一切都会正常工作：四个角加上起点，因此再次是第一个角。

如果我cycle再次使用而不是传递第一个坐标，最后一个标签就会发生非常奇怪的事情。特别是当我重新缩放tikzpicture...

\documentclass{standalone}
\usepackage{tikz}
\begin{document}

% Not helping: every node/.style={scale=2}
\begin{tikzpicture}[scale=2]
  % Works
  \draw
  (0,0) -- node[left] {A0}
  (0,1) -- node[above] {B0}
  (1,1) -- node[right] {C0}
  (1,0) -- node[below] {D0}
  cycle;

  % Works
  \draw
  (2,0) -- node[left] {A2}
  (2,1) -- node[above] {B2}
  (2+1,1) -- node[right] {C2}
  (2+1,0) -- node[below] {D2}
  (2,0);

  % Does not work (as long as scale!=1)
  \draw
  (4,0) -- node[left] {A4}
  (4,1) -- node[above] {B4}
  (4+1,1) -- node[right] {C4}
  (4+1,0) -- node[below] {D4}
  cycle;

  % This works
  \draw[yshift=-2cm]
  (0,0) -- node[left] {A6}
  (0,1) -- node[above] {B6}
  (1,1) -- node[right] {C6}
  (1,0) -- node[below] {D6}
  (0,0);

  % Never works (it's really "cycle" that's to blame here)
  \draw[yshift=-2cm, xshift=2cm]
  (0,0) -- node[left] {A8}
  (0,1) -- node[above] {B8}
  (1,1) -- node[right] {C8}
  (1,0) -- node[below] {D8}
  cycle;
\end{tikzpicture}
\end{document}

Answer 1

使用(current subpath start) -- cycle有效。（但我不清楚为什么cycle不行。）

\documentclass[tikz]{standalone}
\begin{document}

% Not helping: every node/.style={scale=2}
\begin{tikzpicture}[scale=2]
  % Works
  \draw
  (0,0) -- node[left] {A0}
  (0,1) -- node[above] {B0}
  (1,1) -- node[right] {C0}
  (1,0) -- node[below] {D0}
  cycle;

  % Works
  \draw
  (2,0) -- node[left] {A2}
  (2,1) -- node[above] {B2}
  (2+1,1) -- node[right] {C2}
  (2+1,0) -- node[below] {D2}
  (2,0);

  % Does not work (as long as scale!=1)
  \draw
  (4,0) -- node[left] {A4}
  (4,1) -- node[above] {B4}
  (4+1,1) -- node[right] {C4}
  (4+1,0) -- node[below] {D4}
  (current subpath start) -- cycle;

  % This works
  \draw[yshift=-2cm]
  (0,0) -- node[left] {A6}
  (0,1) -- node[above] {B6}
  (1,1) -- node[right] {C6}
  (1,0) -- node[below] {D6}
  (0,0);

  % Never works (it's really "cycle" that's to blame here)
  \draw[yshift=-2cm, xshift=2cm]
  (0,0) -- node[left] {A8}
  (0,1) -- node[above] {B8}
  (1,1) -- node[right] {C8}
  (1,0) -- node[below] {D8}
  (current subpath start)
  -- cycle;
\end{tikzpicture}
\end{document}