如何将箭头改为 \Rightarrow,并在两个节点之间绘制两个不同的箭头

如何将箭头改为 \Rightarrow,并在两个节点之间绘制两个不同的箭头

我有两个问题。我试图绘制的图表肯定有一种简单的方法,但我对在 tex 中绘制图表完全陌生。Xy-pic 包似乎太复杂了,因此我正在尝试 TikZ-package。

  1. 我如何将矩阵中的箭头简单地更改为$\Rightarrows$,我通过解决了它[double],但它看起来并不好看,而且箭头的颜色有些不同。

  2. 如何在两个节点之间添加两个箭头。简单来说,我想在两个节点 A 和 B 之间写上$A \Rightarrow B$$B \nLightarrow A$。我还无法解决弯曲问题。

这是我迄今为止的代码。

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{matrix,arrows,decorations.pathmorphing}
\begin{document}
\begin{tikzpicture}
\matrix (m) [matrix of math nodes, row sep=3em, column sep=3em, text
            height=1.5ex, text depth=0.25ex] 
            {   & X & & \\
              A & B & C & D \\
              E & F & G & H \\
                  & I & & \\};
            \path[->] (m-1-2) edge [double] (m-2-3)
                               edge [double,bend left=90] (m-4-2);
             \path[->] (m-2-1) edge [double] (m-2-2)
                               edge [double] (m-3-1)
                               edge [double] (m-1-2);
             \path[->] (m-2-2) edge  [double] (m-2-3)
                               edge  [double] (m-3-2);
             \path[->] (m-2-3) edge [double] (m-2-4)
                               edge [double] (m-3-3);
             \path[->] (m-2-4) edge [double] (m-3-4);
             \path[->] (m-3-1) edge [double] (m-3-2)
                               edge [double] (m-4-2);
             \path[->] (m-3-2) edge [double](m-3-3); 
             \path[->] (m-3-3) edge [double] (m-3-4); 
             \path[->] (m-4-2) edge [double] (m-3-3);
             \end{tikzpicture}
             \end{document}

答案1

这是一个使用tikz-cd有助于创建交换图的包:

\documentclass{article}
\usepackage{tikz-cd}

\begin{document}

\begin{tikzcd}
& X\arrow[Rightarrow]{dr}{}\arrow[Rightarrow,to path={..controls +(-2.5,0.7) and +(-2.5,-0.7).. (\tikztotarget)}]{ddd}{}    \\
A \arrow[Rightarrow]{ur}{}\arrow{r}{}\arrow{d} & B \arrow{r}{}\arrow{d} & C\arrow{r}{}\arrow{d} & D\arrow{d}\\
E \arrow[Rightarrow]{dr}{} \arrow{r}{} & F \arrow{r}{} & G\arrow{r}[color=red]{} & H\\
& I\arrow[Rightarrow]{ur}{}\\
\end{tikzcd}

\end{document}

在此处输入图片描述

如果要为所有箭头赋予 样式\Rightarrow,则使用以下arrows=Rightarrow选项就足够了:

\documentclass{article}
\usepackage{tikz-cd}

\begin{document}

\begin{tikzcd}[arrows=Rightarrow]
& X\arrow{dr}{}\arrow[to path={..controls +(-2.5,0.7) and +(-2.5,-0.7).. (\tikztotarget)}]{ddd}{} \\
A \arrow{ur}{}\arrow{r}{}\arrow{d} & B \arrow{r}{}\arrow{d} & C\arrow{r}{}\arrow{d} &    D\arrow{d} \\
E \arrow{dr}{} \arrow{r}{} & F \arrow{r}{} & G\arrow{r}[color=red]{} & H \\
& I\arrow{ur}{}
\end{tikzcd}

\end{document}

在此处输入图片描述

我最初忘记了问题 2。您可以使用in=out=键来弯曲箭头:

\documentclass{article}
\usepackage{tikz-cd}

\begin{document}

\begin{tikzcd}[arrows=Rightarrow]
& X\arrow{dr}{}\arrow[to path={..controls +(-2.5,0.7) and +(-2.5,-0.7).. (\tikztotarget)}]{ddd}{} \\
A \arrow{ur}{}\arrow[out=30,in=150]{r}{}\arrow{d} & B \arrow[out=210,in=330]{l}{}\arrow{r}{}\arrow{d} & C\arrow{r}{}\arrow{d} &    D\arrow{d} \\
E \arrow{dr}{} \arrow{r}{} & F \arrow{r}{} & G\arrow{r}[color=red]{} & H \\
& I\arrow{ur}{}
\end{tikzcd}

\end{document}

在此处输入图片描述

答案2

这有点简化,我将绘图命令放入循环中foreach。很难理解最终产品应该是什么样子。此外,颜色似乎是 PDF 查看器的问题,因为 SumatraPDF 没有出现此问题。所需的箭头名称是implies,可以在库文档中找到arrows。为了简化,我不想把它写得太简洁,但这当然是可能的。

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{matrix,arrows,decorations.pathmorphing}
\begin{document}
\begin{tikzpicture}[>=implies]
\matrix (m) [matrix of math nodes, nodes in empty cells, row sep=3em, column sep=3em, 
text height=1.5ex, text depth=0.25ex] 
        {   & X & &     \\
          A & B & C & D \\
          E & F & G & H \\
              & I & &   \\};

\foreach[remember=\x as \lastx (initially 1)] \x in {2,...,4}{
    \draw[double,->] (m-2-\lastx) -- (m-2-\x);
    \draw[double,->] (m-3-\lastx) -- (m-3-\x);
}

\foreach \x in {1,...,4}{\draw[double,->] (m-2-\x) -- (m-3-\x);}

\draw[double,->] (m-1-2) -- (m-2-3);
\draw[double,->] (m-2-1) -- (m-1-2);
\draw[double,->] (m-4-2) -- (m-3-3);
\draw[double,->] (m-3-1) -- (m-4-2);
\draw[double,->] (m-1-2) .. controls ([xshift=-1.2cm]m-1-1) and ([xshift=-1.2cm]m-4-1) .. (m-4-2);
\end{tikzpicture}
\end{document}

在此处输入图片描述

答案3

将箭头改为 $\Rightarrows$ 的一种方法是使用 tikz-cd,通过在边上添加 [交换图/Rightarrow]。以下代码是回答可以在以下网址找到tikzcd 手册(第 13 页)为五边形图。

代码与您的不同,但它给出了将边缘转换为 tikz-cd 的 Rightarrow 的基本思想。

\documentclass{article}
\usepackage{tikz-cd}

\begin{document}
\newlength{\edgelentgh}
\setlength{\edgelentgh}{3cm}
\[
\begin{tikzcd}[row sep={0cm,between origins},column sep={0cm,between origins}] %setting seperators to zero for easier manipulation
&[.3090169944\edgelentgh]
&[.5\edgelentgh] % above value times golden ratio
F'(U_2)\arrow{ddl}\arrow{ddr}\arrow{drr} 
&[.5\edgelentgh] 
&[.3090169944\edgelentgh]\\[.5877852523\edgelentgh]
 F'(U_1)\arrow{urr}\arrow{rrrr}\arrow{dr}\arrow{drrr} 
&&&& F'(U_3) \arrow{dlll}\arrow{dl} 
\\[.9510565163\edgelentgh] % above value times golden ratio
& 
F(V)\arrow{rr} 
&& 
F(W) 
& 
\end{tikzcd}
\]      

% This example is given in the tikz-cd manual:
\begin{tikzpicture}[commutative diagrams/every diagram]
\node (P0) at (90:.8506508084\edgelentgh) {$F'(U_2)$};
\node (P1) at (90+72:.8506508084\edgelentgh) {$F'(U_1)$} ;
\node (P2) at (90+2*72:.8506508084\edgelentgh) {$F(V)$};
\node (P3) at (90+3*72:.8506508084\edgelentgh) {$F(W)$};
\node (P4) at (90+4*72:.8506508084\edgelentgh) {$F'(U_3)$};
%
\path[commutative diagrams/.cd, every arrow, every label]
(P0) edge[commutative diagrams/Rightarrow] node (P4)
(P3) edge[commutative diagrams/Rightarrow] node[swap] (P4)
(P1) edge[commutative diagrams/Rightarrow] node (P0)
(P1) edge[commutative diagrams/Rightarrow] node[swap] (P2) 
(P2) edge[commutative diagrams/Rightarrow] (P3);
\end{tikzpicture}
\end{document}

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