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如何在中心框内创建协议流？

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如何在中心框内创建协议流？

您能否指点一下如何在 latex 中创建下图？这是描述以方框为中心的双方协议的情况。它就像一个 3X4 表，但我在对齐方面遇到了困难。Tikz 是绘制此图的唯一方法吗？ 图 3

答案1

添加新的浮点或标题类型（本例中为“Scheme”）的简单方法是使用newfloat属于caption捆绑包的包。还有一个float包也提供（for：place really Here！）。可以使用或更简单的包H来制作框。\fbox{\begin{minipage}{<width>}..\end{minipage}}adjustbox

tabular如果您想要与 PDF 相同的格式，则最好使用 来制作实际内容。

\documentclass{article}

\usepackage{float}
\usepackage{newfloat}
\DeclareFloatingEnvironment[
    fileext=los,
    listname=List of Schemes,
    name=Scheme,
    placement=H,
    within=section,
]{scheme}

\usepackage{adjustbox}
\usepackage{blindtext}
\begin{document}

\section{Test}
\blindtext

\begin{scheme}
\begin{adjustbox}{minipage=.6\linewidth,fbox,center}
\begin{tabular}{rl}
  \bfseries Encryption:  & .... \\
                         & .... \\
  \bfseries Deccryption: & .... \\
                         & .... \\
            something    & .... \\
                         & .... \\
\end{tabular}
\end{adjustbox}
\caption{Some scheme}
\end{scheme}

\blindtext

\end{document}

结果

或者，使用adjustboxv0.9 于 2012/05/16 开始（可在 CTAN 和在 Bitbucket.org)：

\documentclass{article}

\usepackage{newfloat}
\DeclareFloatingEnvironment[
    fileext=los,
    listname=List of Schemes,
    name=Scheme,
    within=section,
]{scheme}

\usepackage{adjustbox}[2012/05/16]
\usepackage{blindtext}
\begin{document}
\listofschemes

\section{Test}
\blindtext

\begin{adjustbox}{tabular={rp{.4\linewidth}},fbox,center,caption={Some scheme},nofloat=scheme}
  \bfseries Encryption:  & .... \\
                         & .... \\
  \bfseries Deccryption: & .... \\
                         & .... \\
            something    & .... \\
                         & .... \\
\end{adjustbox}

\blindtext

\end{document}

如果您希望方案浮动，请将 更改为nofloat。当然，如果您更频繁地需要它，您可以为此创建一个新环境。float

\newenvironment{xscheme}{\adjustbox{tabular={rp{.4\linewidth}},fbox,center,caption={Some scheme},nofloat=scheme}\bgroup}{\egroup}

不要调用它，scheme因为该环境是内部使用的。

答案2

我还对创建协议流程图（也称为梯形图或序列图）感兴趣。我发现这个最接近我想要的：

http://www.texample.net/tikz/examples/sequence-diagram/

但它太复杂了，代码也太丑了。下面是我尝试的一种更简单的形式：

% Agents
\def\Client          {Client}
\def\MasterController{Master Controller}
\def\FeatureCtlr     {Feature Controller}

% Drawing centred nodes macro.
\newcommand{\nd}{\node(0, 0)}

% Diagram
\begin{tikzpicture}[every node/.style={font=\normalsize,
                                       minimum height=0.5cm,
                                       minimum width=0.5cm}]

  % Matrix
  \node[matrix, very thin, column sep=1.3cm, row sep=0.5cm](matrix) at (0,0)
  {
    \nd (\Client)   {}; &          & \nd (\MasterController)   {}; &         & \nd (\FeatureCtlr)   {}; \\
    \nd (\Client 0) {}; &          & \nd (\MasterController 0) {}; &         & \nd (\FeatureCtlr 0) {}; \\
    \nd (\Client 1) {}; & \nd {};  & \nd (\MasterController 1) {}; &         & \nd (\FeatureCtlr 1) {}; \\
    \nd (\Client 2) {}; & \nd {};  & \nd (\MasterController 2) {}; &         & \nd (\FeatureCtlr 2) {}; \\
    \nd (\Client 3) {}; &          & \nd (\MasterController 3) {}; & \nd {}; & \nd (\FeatureCtlr 3) {}; \\
    \nd (\Client 4) {}; & \nd {};  & \nd (\MasterController 4) {}; &         & \nd (\FeatureCtlr 4) {}; \\
    \nd (\Client 5) {}; & \nd {};  & \nd (\MasterController 5) {}; &         & \nd (\FeatureCtlr 5) {}; \\
    \nd (\Client 6) {}; &          & \nd (\MasterController 6) {}; & \nd {}; & \nd (\FeatureCtlr 6) {}; \\
  };

  % Agents labels
  \fill
    (\Client)           node[draw,fill=white] {\Client}
    (\MasterController) node[draw,fill=white] {\MasterController}
    (\FeatureCtlr)      node[draw,fill=white] {\FeatureCtlr};

  % Vertical lifelines
  \draw [dotted]
    (\Client)           -- (\Client           6)
    (\MasterController) -- (\MasterController 6)
    (\FeatureCtlr)      -- (\FeatureCtlr      6);

  % Blocks (Budget constraints)
  \filldraw[fill=black!17]
    (\Client           0.north west) rectangle (\Client           5.south east)
    (\MasterController 0.north west) rectangle (\MasterController 3.south east)
    (\FeatureCtlr      1.north west) rectangle (\FeatureCtlr      2.south east)
    (\FeatureCtlr      4.north west) rectangle (\FeatureCtlr      5.south east);

  % Horizontal flows (inter-process).
  \draw [-latex]        (\Client           0) -- node [midway,above]{$request$}  (\MasterController 0);
  \draw [-latex]        (\MasterController 1) -- node [midway,above]{$validate$} (\FeatureCtlr      1);
  \draw [-latex,dashed] (\FeatureCtlr      2) -- (\MasterController 2);
  \draw [-latex,dashed] (\MasterController 3) -- (\Client           3);
  \draw [-latex]        (\Client           4) -- node [midway,above]{$access$}   (\FeatureCtlr      4);
  \draw [-latex,dashed] (\FeatureCtlr      5) -- (\Client           5);
\end{tikzpicture}

示例协议流程图

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