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如何制作带有穿过框的箭头的流程图？

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如何制作带有穿过框的箭头的流程图？

我想画一个这样的流程聊天

在此处输入图片描述

但我不知道如何让这些箭头穿过盒子，并使盒子变得更大。

\documentclass{beamer}
\usepackage{amsmath}
\usepackage{tikz}
\usepackage{collectbox}

\makeatletter
\newcommand{\mybox}{%
    \collectbox{%
        \setlength{\fboxsep}{5pt}%
        \fbox{\BOXCONTENT}%
    }%
}
\makeatother

\usetikzlibrary{arrows,
                positioning,    % <--- added
                shapes}
\usepackage{xparse}% So that we can have two optional parameters


\begin{document}
  \begin{frame}
    \begin{tikzpicture}[
            node distance = 7mm and 6mm,     % <---
            block/.style = {rectangle, draw, rounded corners, align=center},
            cloud/.style = {draw, ellipse, inner sep=1pt, align=center}, % <---
            font = \footnotesize       % <---
            ]
            % Place nodes
            \node [block, label={[anchor=east, align=center, xshift=-1ex, % <---
            font=\scriptsize\linespread{0.9}\selectfont,% <---
                text=purple]right:
                }
                ] (init) {\textbf{\underline{\large{Machine}}}\\
            \\[5ex]
            \qquad\:\mybox{Function}\qquad\:\\[6ex]
            };
            \node [cloud, left=of init] (data)
                 {\textbf{\large{Training data}}\\
                 \textbf{\large{set}}};
            \node [cloud, above right=of init.east, anchor=west] (input)  % <---
            {\textbf{\large{Input}}};     % <---
            \node [cloud, below right=of init.east, anchor=west] (output) % <--- 
                  {\textbf{\large{Output}}};
            % Draw edges
            \draw[red,-latex']  (data) -- (init);
            \draw[red,-latex']  (init) -- (data);
            \draw[magenta,-latex']  (input) -- (init.east |- input);
            \draw[cyan,-latex']  (init.east |- output) -- (output);
        \end{tikzpicture}
   \end{frame}
\end{document}

答案1

在此处输入图片描述

\documentclass{beamer}
\usepackage{tikz}

\usetikzlibrary{arrows.meta,
                decorations.markings, % <--- added
                positioning,   
                shapes}

\begin{document}
\begin{frame}[fragile]   % <--- doesn't work without option "fragile" 
\frametitle{New flowchart}
\begin{center}
    \begin{tikzpicture}[
node distance = 12mm and 9mm,
block/.style = {rectangle, draw, rounded corners,
                minimum size=24mm,
                label={[anchor=north, font=\large\bfseries]north:#1}
                },
cloud/.style = {draw, ellipse, inner sep=2pt, outer sep=0pt,
                align=center, font=\large\bfseries},
  decoration = {markings,% switch on markings
                mark=at position 0.75 with {\arrow[thick]{Latex}},
                },
 line/.style = {draw=#1, semithick, postaction={decorate}, 
                },
font = \footnotesize
]
% Place nodes
\node [block=\underline{Machine}] (init)    {};
\node [draw]  (fnct) at (init.center)       {Function};
\node [cloud, left=of init] (data)          {Training\\ data set};
\node [cloud,
       above right=of init.east, anchor=west] (input)  {Input};
\node [cloud,
       below right=of init.east, anchor=west] (output) {Output};
\node [below left,xshift=1ex,text=blue] at (output.west) {prediction};
% Draw edges
\draw[line=red]     (data.330) -| (fnct.240);
\draw[line=red]     (fnct.240) |- (data.330);
\coordinate[right=of {[yshift= 1mm] fnct.east}] (aux1);
\coordinate[right=of {[yshift=-1mm] fnct.east}] (aux2);
\draw[line=purple]      (input) -| (aux1);
\draw[thick,magenta]    (aux1) -- (aux1 -| fnct.east);
\draw[line=magenta]    (fnct.east |- aux2) -| (aux2 |- output) -- (output);
\draw[line=black]   (data) -- (init);
        \end{tikzpicture}
\end{center}
\end{frame}
\end{document}

编辑：input从到 的箭头funct方向错误，:-(。现在已更正。

答案2

我花了一段时间才清理干净。

\documentclass{beamer}
\usepackage{amsmath}
\usepackage{tikz}

\usetikzlibrary{fit,% <--- added
                positioning,    
                shapes,decorations.markings}% <--- added
% https://tex.stackexchange.com/a/39282/121799
\tikzset{->-/.style={decoration={
  markings,
  mark=at position .5 with {\arrow{>}}},postaction={decorate}}}
\tikzset{-<>-/.style={decoration={
  markings,
  mark=at position .33 with {\arrow{<}},
  mark=at position .67 with {\arrow{>}}},postaction={decorate}}
}


\begin{document}
  \begin{frame}
    \begin{tikzpicture}[
            node distance = 7mm and 6mm,    
            block/.style = {rectangle, draw, rounded corners, align=center},
            cloud/.style = {draw, ellipse, inner sep=1pt, align=center}, 
            >=latex
            ]
            % Place nodes
            \node[font=\Large\bfseries]     (init)  {\underline{Machine}};
            \node[below=3em of init,draw,rounded corners] (function) {Function};
            \path ([yshift=-3em]function) coordinate (aux);
            \node[draw,fit=(init) (function) (aux)] (fit){};
            \node [cloud, left=of fit] (data)
                 {\textbf{\large{Training data}}\\
                 \textbf{\large{set}}};
            \node [cloud, above right=of fit.east, anchor=west,font=\large\bfseries] (input)  % <---
            {Input};     % <---
            \node [cloud, below right=12mm and 6mm of fit.east, anchor=west,font=\large\bfseries] (output) % <--- 
                  {Output};
            % Draw edges
            \draw[->-]  (data) -- (fit);
            \draw[red,-<>-]  (function.-160)  -- ++(0,-2mm) -| (data);
            \path (input.west) -- (function.east) coordinate[midway] (aux2);
            \path (output.west) -- (function.east) coordinate[midway] (aux3);
            \draw[magenta,->-]  (input) -| (aux2) |- ([yshift=2pt]function);
            \draw[cyan,->-] ([yshift=-2pt]function)  -| (aux3) |- (output);
        \end{tikzpicture}
   \end{frame}
\end{document}

在此处输入图片描述

答案3

您无法（轻松地）绘制到函数框，因为它被绘制为\fbox。如果您将其绘制为 ，则要\node容易得多：

\documentclass{beamer}
\usepackage{amsmath}
\usepackage{tikz}
\usetikzlibrary{calc}
\usepackage{collectbox}

\makeatletter
\newcommand{\mybox}{%
    \collectbox{%
        \setlength{\fboxsep}{5pt}%
        \fbox{\BOXCONTENT}%
    }%
}
\makeatother

\usetikzlibrary{arrows,
                positioning,    % <--- added
                shapes}
\usepackage{xparse}% So that we can have two optional parameters


\begin{document}
  \begin{frame}
    \begin{tikzpicture}[
            node distance = 7mm and 6mm,     % <---
            block/.style = {rectangle, draw, rounded corners, align=center},
            cloud/.style = {draw, ellipse, inner sep=1pt, align=center}, % <---
            font = \footnotesize       % <---
            ]
            % Place nodes
            % \node [block, label={[anchor=east, align=center, xshift=-1ex, % <---
            % font=\scriptsize\linespread{0.9}\selectfont,% <---
            %     text=purple]right:
            %     }
            %     ] (init) {\textbf{\underline{\large{Machine}}}\\
            % \\[1ex]
            % \\[1ex]
            % \qquad\:\mybox{Function}\qquad\:\\[1ex]
            % \\[1ex]
            % \\[1ex]
            % };
            %%% ************ New stuff
            \node[draw, rounded corners,
              minimum height=35mm,
              text depth=30mm,
              minimum width=35mm] (init) {\textbf{\underline{\large{Machine}}}};
            \node[draw,inner sep=5pt] (Function) at ($(init)+(0,0.2)$) {Function};
            %%% *************
            \node [cloud, left=of init] (data)
                 {\textbf{\large{Training data}}\\
                 \textbf{\large{set}}};
            \node [cloud, above right=of init.east, anchor=west] (input)  % <---
            {\textbf{\large{Input}}};     % <---
            \node [cloud, below right=of init.east, anchor=west] (output) % <--- 
                  {\textbf{\large{Output}}};
            % Draw edges
            \draw[red,-latex']  (data) -- (init);
            %% \draw[red,-latex']  (init) -- (data);
            \draw[red,-latex] (data.south east) -| (Function.south);%% New
            \draw[magenta,-latex']  (Function.10) -- +(1.2,0) |- (input);%% Changed
            \draw[cyan,-latex'] (Function.-10) -- +(1.2,0) |- (output);%% Changed
        \end{tikzpicture}
   \end{frame}
\end{document}

在此处输入图片描述

答案4

只是为了好玩而使用带有一些文本管理和 tikz 库的基本代码的选项shapes.geometric，arrows.meta并positioning获得类似于所需结果......

结果： 在此处输入图片描述

梅威瑟：

\documentclass[tikz,border=15pt]{standalone}
\usepackage[scaled]{helvet}
\usepackage{emerald}
\usepackage[T1]{fontenc}
\usetikzlibrary{shapes.geometric,arrows.meta,positioning}
\begin{document}
    \begin{tikzpicture}[
        %Environment Config
        line width=0.75pt,
        >={Straight Barb[slant=.2,angle=60:0.25cm]}
    ]
    \draw[thick] %Drawing the nodes
        node[draw,label={[anchor=north]90:\Large\sf Machine},minimum size=2.5cm](MA){\ECFAugie}
        node[draw](F){\ECFAugie Function}
        node[ellipse, draw, left=1cm of MA,minimum height=1.5cm](TD){\ECFAugie Training data}
        node[ellipse, draw, on grid, above right=1.5cm and 4cm of MA,minimum width=2cm](IN){\ECFAugie Input}
        node[ellipse, draw, on grid, below right=0.5cm and 4cm of MA,minimum height=1.2cm](OUT){\ECFAugie Output};

    \path%Finding nodes to put the arrows
    (TD) -- (MA) node[midway](temp){}
    (TD.-25) -| (F) node[pos=0.2](temp2){} node[pos=0.35](temp3){}
    (F.5)--++(1.2,0) |- (IN) node[pos=0.25](temp4){}
    (F.-5)--++(1.2,0) |-(OUT) node[pos=0.8](temp5){};

    %Drawing the arrows.
    \draw(temp.center) edge[<-] (TD) edge (MA);
    \draw[red](TD.-25) edge (temp2.center) (temp3.center) edge [<->] (temp2.center) -| (F);
    \definecolor{Myviolet}{HTML}{9E5EFC}
    \draw[Myviolet](F.5) -| (temp4.center) (temp4 |- IN) edge[->] (temp4.center) edge (IN);
    \draw[blue](F.-5)--++(1.2,0) coordinate (t1) -- (t1 |- OUT) coordinate (t2)  (temp5.center) edge[<-] (t2) edge (OUT);
    \draw[blue](t2)++(-115:10pt) node{\ECFAugie \scriptsize prediction};
    \end{tikzpicture}
\end{document}

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