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1. 設法將曲線定位在每個要點的中心：

tag-icon • tag-icon tikz-pgf lindenmayer
1. 設法將曲線定位在每個要點的中心：

TikZ我想使用Lindenmayer 系統在 LaTeX 中繪製 Z 曲線。但我沒有設法將曲線定位在每個要點的中心。此外，我沒有找到任何優雅的方法來使所有曲線具有相同的大小。

這是我得到的：

在此輸入影像描述

這是我的程式碼：

\documentclass[a4paper,11pt]{article}

\usepackage{graphicx}          
\usepackage{caption}
\usepackage{subcaption} 
\usepackage{tikz}


\begin{document}
\usetikzlibrary{lindenmayersystems}
\pgfdeclarelindenmayersystem{z-curve}{
\symbol{I}{\pgftransformscale{+0.25\pgflsystemstep}}
\symbol{p}{%
  \pgfpathmoveto{\pgfqpoint{1pt}{3pt}}\pgfpathlineto{\pgfqpoint{3pt}{3pt}}%
  \pgfpathlineto{\pgfqpoint{1pt}{1pt}}\pgfpathlineto{\pgfqpoint{3pt}{1pt}}%
}
\symbol{q}{%
  \pgfpathlineto{\pgfqpoint{1pt}{3pt}}\pgfpathlineto{\pgfqpoint{3pt}{3pt}}%
  \pgfpathlineto{\pgfqpoint{1pt}{1pt}}\pgfpathlineto{\pgfqpoint{3pt}{1pt}}%
}
\symbol{S}{\pgftransformscale{+0.5pt}}
\symbol{A}{\pgftransformshift{\pgfqpoint{0pt}{4pt}}}
\symbol{B}{\pgftransformshift{\pgfqpoint{4pt}{4pt}}}
\symbol{C}{\pgftransformshift{\pgfqpoint{4pt}{0pt}}}
\symbol{[}{\bgroup}
\symbol{]}{\egroup}
\rule{Z -> Ip}
\rule{p -> S[Ap][Bq][q][Cq]}
\rule{q -> S[Aq][Bq][q][Cq]}
}

\begin{figure}[ht]
\centering
\subcaptionbox{}
{\begin{tikzpicture}[scale=2]
\draw [l-system={z-curve, step=1cm, axiom=Z, order=1}] l-system;
\end{tikzpicture}}
\hspace{1cm}
\subcaptionbox{}
{\begin{tikzpicture}[scale=2]
\draw [l-system={z-curve, step=1cm, axiom=Z, order=2}] l-system;
\end{tikzpicture}}
\hspace{1cm}
\subcaptionbox{}
{\begin{tikzpicture}[scale=2]
\draw [l-system={z-curve, step=1cm, axiom=Z, order=3}] l-system;
\end{tikzpicture}}
\hspace{1cm}
\subcaptionbox{}
{\begin{tikzpicture}[scale=2]
\draw [l-system={z-curve, step=1cm, axiom=Z, order=4}] l-system;
\end{tikzpicture}}
\end{figure}

\end{document}

有什麼建議我應該改變什麼才能得到我想要的嗎？

答案1

1. 設法將曲線定位在每個要點的中心：

我更改了符號 p 和 q（水平域：0pt改為2pt；而不是1pt）3pt以實現水平居中。垂直方向也從 開始，0pt而不是1pt。您\draw(<x>,<y>)...可以稍後任意放置曲線。例如與\draw(0,0).

\symbol{p}{%
  \pgfpathmoveto{\pgfqpoint{0pt}{2pt}}\pgfpathlineto{\pgfqpoint{2pt}{2pt}}%
  \pgfpathlineto{\pgfqpoint{0pt}{0pt}}\pgfpathlineto{\pgfqpoint{2pt}{0pt}}%
}
\symbol{q}{%
  \pgfpathlineto{\pgfqpoint{0pt}{2pt}}\pgfpathlineto{\pgfqpoint{2pt}{2pt}}%
  \pgfpathlineto{\pgfqpoint{0pt}{0pt}}\pgfpathlineto{\pgfqpoint{2pt}{0pt}}%
}

2.所有曲線大小相同：

與\resizebox{<horizontal size>}{<vertical size>}{...}（參見：4.3.2 縮放至請求的大小，手冊中的第 8 頁 [“'graphics' 套件中的套件”]）您可以設定tikzpicture.如果您希望tikzpicture按比例縮放，您可以給出其中一個尺寸並放入!另一個尺寸。

\resizebox{!}{2cm}{
\begin{tikzpicture}
\draw[black](0,0) l-system [l-system={z-curve, step=1cm, axiom=Z, order=1}];
\end{tikzpicture}
}

3、注意事項

我使用\subfloat並減少了包的導入，因為 TikZ 會graphicx自動加載。

結果：

在此輸入影像描述

微量元素：

\documentclass[a4paper,11pt]{article}
\usepackage{tikz}
\usepackage{subfig}
\begin{document}
\usetikzlibrary{lindenmayersystems}
\pgfdeclarelindenmayersystem{z-curve}{
\symbol{I}{\pgftransformscale{+0.25\pgflsystemstep}}
\symbol{p}{%
  \pgfpathmoveto{\pgfqpoint{0pt}{2pt}}\pgfpathlineto{\pgfqpoint{2pt}{2pt}}%
  \pgfpathlineto{\pgfqpoint{0pt}{0pt}}\pgfpathlineto{\pgfqpoint{2pt}{0pt}}%
}
\symbol{q}{%
  \pgfpathlineto{\pgfqpoint{0pt}{2pt}}\pgfpathlineto{\pgfqpoint{2pt}{2pt}}%
  \pgfpathlineto{\pgfqpoint{0pt}{0pt}}\pgfpathlineto{\pgfqpoint{2pt}{0pt}}%
}
\symbol{S}{\pgftransformscale{+0.5pt}}
\symbol{A}{\pgftransformshift{\pgfqpoint{0pt}{4pt}}}
\symbol{B}{\pgftransformshift{\pgfqpoint{4pt}{4pt}}}
\symbol{C}{\pgftransformshift{\pgfqpoint{4pt}{0pt}}}
\symbol{[}{\bgroup}
\symbol{]}{\egroup}
\rule{Z -> Ip}
\rule{p -> S[Ap][Bq][q][Cq]}
\rule{q -> S[Aq][Bq][q][Cq]}
}

\begin{figure}[h!]
\centering
\subfloat[]{\label{fig:a}
\resizebox{!}{2cm}{
\begin{tikzpicture}
\draw[black](0,0) l-system [l-system={z-curve, step=1cm, axiom=Z, order=1}];
\end{tikzpicture}
}
}
\hfill
\subfloat[]{\label{fig:a}
\resizebox{!}{2cm}{
\begin{tikzpicture}
\draw [red](0,0) l-system  [l-system={z-curve, step=1cm, axiom=Z, order=2}];
\end{tikzpicture}
}
}
\hfill
\subfloat[]{\label{fig:a}
\resizebox{!}{2cm}{
\begin{tikzpicture}
\draw [blue](0,0) l-system  [l-system={z-curve, step=1cm, axiom=Z, order=3}];
\end{tikzpicture}
}
}
\hfill
\subfloat[]{\label{fig:a}
\resizebox{!}{2cm}{
\begin{tikzpicture}
\draw [green](0,0) l-system  [l-system={z-curve, step=1cm, axiom=Z, order=4}];
\end{tikzpicture}
}
}
\hfill
\caption{Z-Curve using TikZ and the Lindenmayer system}\label{fig:LabelFigOne}
\end{figure}
\end{document}

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