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如何让关系看起来更好

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如何让关系看起来更好

我创建了以下“表格”作为更大文档的一部分：

\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[fleqn]{mathtools}
\usepackage{tikz}
\usetikzlibrary{positioning}

\newcommand*{\dd}[3][]{\tfrac{\mathrm{d}^{#1}#2}{\mathrm{d}#3^{#1}}}
\newcommand*{\D}[1]{\mathop{}\!\mathrm{d} #1}

\begin{document}
\begin{tikzpicture}[node distance=0.5ex and 1em]
  \node (d0) {\(u\)};
  \node[right=of d0] (i0) {\(\D{v}\)};
  \node[below=of d0] (d1) {\(\dd{u}{x}\)};
  \node[right=of d1] (i1) {\(\int \D{v} \D{x}\)};
  \node[below=of d1] (d2) {\(\dd[2]{u}{x}\)};
  \node[right=of d2] (i2) {\(\int\left(\int\D{v}\D{x}\right)\D{x}\)};
  \node[below=of d2] (d3) {\(\cdots\)};
  \node[right=of d3] (i3) {\(\int\left(\int\left(\int\D{v}\D{x}\right)\D{x}%
    \right)\D{x}\)};
  \node[below=of i3] (i4) {\(\cdots\)};

  \draw (d0.east) -- (i1.west) (d1.east) -- (i2.west) (d2.east) -- (i3.west);
\end{tikzpicture}
\end{document}

现在这样就好了（也许比那更糟糕一点）。我该如何改进这个设计？我原本以为，如果让所有线条都笔直，让第一列右对齐，第二列左对齐，这样会有所帮助，但我不知道该怎么做。有什么建议吗？

答案1

不确定您正在寻找什么，但这里有一个选项是使用语法to并指定out=和in=角度。

在此处输入图片描述

代码：

\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[fleqn]{mathtools}
\usepackage{tikz}
\usetikzlibrary{positioning}

\newcommand*{\dd}[3][]{\tfrac{\mathrm{d}^{#1}#2}{\mathrm{d}#3^{#1}}}
\newcommand*{\D}[1]{\mathop{}\!\mathrm{d} #1}

\tikzset{My Line Style/.style={out=0, in=180, thick, blue, shorten <=-0.5ex, shorten >=-0.5ex, distance=1.0em, -stealth}}

\begin{document}
\begin{tikzpicture}[node distance=0.5ex and 1em]
  \node (d0) {\(u\)};
  \node[right=of d0] (i0) {\(\D{v}\)};
  \node[below=of d0] (d1) {\(\dd{u}{x}\)};
  \node[right=of d1] (i1) {\(\int \D{v} \D{x}\)};
  \node[below=of d1] (d2) {\(\dd[2]{u}{x}\)};
  \node[right=of d2] (i2) {\(\int\left(\int\D{v}\D{x}\right)\D{x}\)};
  \node[below=of d2] (d3) {\(\cdots\)};
  \node[right=of d3] (i3) {\(\int\left(\int\left(\int\D{v}\D{x}\right)\D{x}%
    \right)\D{x}\)};
  \node[below=of i3] (i4) {\(\cdots\)};

  \draw[My Line Style]  (d0.east) to (i1.west); 
  \draw[My Line Style]  (d1.east) to (i2.west);
  \draw[My Line Style]  (d2.east) to (i3.west);
\end{tikzpicture}
\end{document}

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