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几厘米居中 tikzpicture

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几厘米居中 tikzpicture

下午好。我必须将这个方案置于中心位置。 在此处输入图片描述

这只是几厘米的问题:)

该部分的代码如下：

\tikzstyle{startstop} = [rectangle, rounded corners, minimum width=3cm, minimum height=1cm,text centered, draw=black]
\tikzstyle{process} = [rectangle, minimum width=3cm, minimum height=1cm, text centered, draw=black]
\tikzstyle{arrow} = [thick,->,>=stealth]
\tikzstyle{line} = [thick,-]

\begin{tikzpicture}[node distance=2cm]
\centering

\node (mario) [startstop] {Mario};
\node (sara) [startstop, xshift=10cm] {Sara};
\node (convert_m) [process, below of=sara] {Converte $m=78392$};
\node (gen_p_g_a) [process, below of=mario] {Genera $p=104743$, $g=6$ e $a=31152$};
\node (gen_k) [process, below of=convert_m] {Genera $k=4189$};
\node (calcA) [process, below of=gen_p_g_a] {Calcola $A\equiv_p38041$};
\node (invia_A_g) [process, below of=calcA, xshift=5cm] {Invia $A$ e $g$};
\node (riceve_A_g) [process, below of=gen_k] {Riceve $A$ e $g$};
\node (calc_c1_c2) [process, below of=riceve_A_g, text width=3cm] {Calcola $c_1\equiv_p 20758$ \\ e $c_2\equiv_p 18244$};
\node (invia_c1_c2) [process, below of= invia_A_g] {Invia $(c_1,c_2)$};
\node (calc_x) [process, below of=calcA, yshift=-2cm] {Calcola $x^{-1}\equiv_p 56798$};
\node (ottiene_m) [process, below of=calc_x] {Ottiene $m\equiv_p x^{-1}c_2\equiv_p 78392$};


\draw [arrow] (sara) -- (convert_m);
\draw [arrow] (convert_m) -- (gen_k);
\draw [arrow] (gen_k) -- (riceve_A_g);
\draw [arrow] (mario) -- (gen_p_g_a);
\draw [arrow] (gen_p_g_a) -- (calcA);
\draw [arrow] (calcA) -- +(0,-2) -- (invia_A_g);
\draw [arrow] (invia_A_g) -- (riceve_A_g);
\draw [arrow] (riceve_A_g) -- (calc_c1_c2);
\draw [arrow] (calc_c1_c2) -- (invia_c1_c2);
\draw [arrow] (invia_c1_c2) -- (calc_x);
\draw [arrow] (calc_x) -- (ottiene_m);
\end{tikzpicture}

答案1

我会重画你的图画……

  • 重新定义图片元素样式（所有“过程”节点具有相同的宽度）
  • tikzpicture节点和箭头样式作为选项插入
  • 用于节点定位的positioning库语法使用
  • 确定并使用节点之间共同的水平和垂直距离
  • 图片绘制将从“Sara”节点开始
\documentclass[12pt]{article}
\usepackage{geometry}
%---------------- show page layout. don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%
\usepackage{lipsum}% For dummy text. Don't use in a real document

\usepackage{lipsum}
\usepackage{tikz}
\usetikzlibrary{arrows.meta,
                chains,
                positioning}
\makeatletter
\tikzset{suspend join/.code={\def\tikz@after@path{}}}
\makeatother

\begin{document}
\lipsum[66]
    \begin{figure}[ht]
    \centering
\begin{tikzpicture}[
node distance=6mm and 8mm,
 start chain = going below,
%
base/.style = {draw, text width = 40mm, align=center},
startstop/.style = {base, rounded corners, text width = 20mm},
  process/.style = {base},
      arr/.style = {-Stealth, thick},
every join/.style = {arr}
                   ]
    \begin{scope}[nodes={base,on chain, join}]
\node (sara)        [startstop] {Sara};  
\node (convert_m)   [process]   {Converte $m=78392$};
\node (gen_k)       [process]   {Genera\\ $k=4189$};
\node (riceve_A_g)  [process]   {Riceve $A$ e $g$};
\node (calc_c1_c2)  [process]   {Calcola\\ $c_1\equiv_p 20758$ \\ e $c_2\equiv_p 18244$};
    \end{scope}
\node (invia_A_g)   [process,
                     left=of riceve_A_g]    {Invia $A$ e $g$};
\node (invia_c1_c2) [process,
                     left = of calc_c1_c2]  {Invia $(c_1,c_2)$};
    \begin{scope}[nodes={base,on chain, join}]
\node (mario)       [startstop,
                     suspend join,
                     left= 80mm of sara] {Mario};   % 50mm = 11mm+8mm+42mm+8mm+11mm
\node (gen_p_g_a)   [process]   {Genera $p=104743$, $g=6$ e $a=31152$};
\node (calcA)       [process]   {Calcola $A\equiv_p38041$};
    \end{scope}
\node (calc_x)      [process,
                     left=of invia_c1_c2]        {Calcola $x^{-1}\equiv_p 56798$};
\node (ottiene_m)   [process, below=of calc_x]  {Ottiene $m\equiv_p x^{-1}c_2\equiv_p 78392$};
% arrows out of join macro
\draw[arr]  (calcA) |- (invia_A_g);
\draw[arr]  (invia_A_g) -- (riceve_A_g);
\draw[arr]  (calc_c1_c2) -- (invia_c1_c2);
\draw[arr]  (invia_c1_c2) -- (calc_x);
\draw[arr]   (calc_x)     -- (ottiene_m);
\end{tikzpicture}
    \end{figure}
\end{document}

在此处输入图片描述

（红线表示页面布局）

答案2

首先，你可以提出一个最小的可编译代码，在这里我们甚至不知道你正在使用哪个类。否则，要回答，changepage 包允许使用环境 \begin{adjustwidth}{...}{...} 本地修改边距。因为在这里你必须将浮动元素置于页面中央，所以你必须将此环境置于浮动元素中。

注意：我选择不修改图像以使其更紧凑，而是为了回答一个更普遍的问题，即使图像大于文本框居中

\documentclass[11pt]{article} 
    
\usepackage{tikz}
\usepackage{lipsum}
\usepackage{changepage}

\usepackage{longtable}

\begin{document}

\lipsum[1]

\tikzstyle{startstop} = [rectangle, rounded corners, minimum width=3cm, minimum height=1cm,text centered, draw=black]
\tikzstyle{process} = [rectangle, minimum width=3cm, minimum height=1cm, text centered, draw=black]
\tikzstyle{arrow} = [thick,->,>=stealth]
\tikzstyle{line} = [thick,-]


%\lipsum[2]
\begin{figure}[!htb]
\begin{adjustwidth}{-1cm}{-1cm}
\centering

\begin{tikzpicture}[node distance=2cm]
\node (mario) [startstop] {Mario};
\node (sara) [startstop, xshift=10cm] {Sara};
\node (convert_m) [process, below of=sara] {Converte $m=78392$};
\node (gen_p_g_a) [process, below of=mario] {Genera $p=104743$, $g=6$ e $a=31152$};
\node (gen_k) [process, below of=convert_m] {Genera $k=4189$};
\node (calcA) [process, below of=gen_p_g_a] {Calcola $A\equiv_p38041$};
\node (invia_A_g) [process, below of=calcA, xshift=5cm] {Invia $A$ e $g$};
\node (riceve_A_g) [process, below of=gen_k] {Riceve $A$ e $g$};
\node (calc_c1_c2) [process, below of=riceve_A_g, text width=3cm] {Calcola $c_1\equiv_p 20758$ \\ e $c_2\equiv_p 18244$};
\node (invia_c1_c2) [process, below of= invia_A_g] {Invia $(c_1,c_2)$};
\node (calc_x) [process, below of=calcA, yshift=-2cm] {Calcola $x^{-1}\equiv_p 56798$};
\node (ottiene_m) [process, below of=calc_x] {Ottiene $m\equiv_p x^{-1}c_2\equiv_p 78392$};


\draw [arrow] (sara) -- (convert_m);
\draw [arrow] (convert_m) -- (gen_k);
\draw [arrow] (gen_k) -- (riceve_A_g);
\draw [arrow] (mario) -- (gen_p_g_a);
\draw [arrow] (gen_p_g_a) -- (calcA);
\draw [arrow] (calcA) -- +(0,-2) -- (invia_A_g);
\draw [arrow] (invia_A_g) -- (riceve_A_g);
\draw [arrow] (riceve_A_g) -- (calc_c1_c2);
\draw [arrow] (calc_c1_c2) -- (invia_c1_c2);
\draw [arrow] (invia_c1_c2) -- (calc_x);
\draw [arrow] (calc_x) -- (ottiene_m);
\end{tikzpicture}
\caption{bla bla}
\label{fig:}

\end{adjustwidth}
\end{figure}


\lipsum[2]

\end{document}

在此处输入图片描述

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