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It seems very simple, but I'm newbie with diagrams in LaTeX. I would be glad if I receive some help.

diagram

4
  • Welcome, it would be of great help to all if you could provide your code, so that we know what packages you seek helps from and let us know where you stumbled.
    – Jesse
    Mar 20, 2016 at 2:44
  • Sorry but I have not idea about diagrams in LaTeX 😕, that's why I'm asking here. Mar 20, 2016 at 2:46
  • 1
    This post might be helpful tex.stackexchange.com/questions/236704/…
    – A Feldman
    Mar 20, 2016 at 2:58
  • You could at least provide a minimal document with the text from the image so people who wish to help don't have to copy from the screenshot or start from scratch. Have a look at any of the drawing packages. The diagram is pretty simple, so you should be able to make a start if you want to.
    – cfr
    Mar 20, 2016 at 3:16

2 Answers 2

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Finally I did it.

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{shapes,arrows,positioning}
\begin{document}

\tikzstyle{block} = [draw, rectangle, minimum height=3em, minimum width=3em]
\tikzstyle{virtual} = [coordinate]

\begin{tikzpicture}[auto]
    % Place nodes
    \node [virtual]                 (input)                        {};
    \node [block, right of=input, node distance=4cm]   (trule)     {Transformation Rules};
    \node [below of=trule]          (vrule)                        {Validation Rules};
    \node [virtual, right of=trule, node distance=4cm] (output)    {};
    \node [left of=input]           (rinput)                       {A};
    \node [right of=output]         (routput)                      {B};
    % Connect nodes
    \draw [->] (input) -- node [name=i] {\(Input\)} (trule);
    \draw [->] (trule) -- node [name=o] {\(Output\)} (output);
\end{tikzpicture}

\end{document}

finaldiagram

Thanks to everyone, specially A Feldman and AJN.

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  • to prevent confusion, you could have edited the previous answer.
    – naphaneal
    Mar 20, 2016 at 14:47
  • 1
    +1 for answering your own question. For the next time put your initial try at answering (a MWE) into your question rather than in an answer.
    – A Feldman
    Mar 20, 2016 at 15:16
1

That's what I have done [special thanks to A Feldman for link].

    \documentclass{article}

    \usepackage{tikz}
    \usetikzlibrary{shapes,arrows,positioning}
    \begin{document}

    \tikzstyle{block} = [draw, rectangle, minimum height=3em, minimum width=3em]
    \tikzstyle{virtual} = [coordinate]

    \begin{tikzpicture}[auto, node distance=4cm]
        % Place nodes
        \node [virtual]                 (input)     {};
        \node [block, right of=input]   (trule)     {Transformation Rules};
        \node [below of=trule]          (vrule)     {Validation Rules};
        \node [virtual, right of=trule] (output)    {};
        \node [left of=input]           (rinput)    {Hello};
        \node [right of=output]         (routput)   {World};
        % Connect nodes
        \draw [->] (input) -- node [name=i] {$input$} (trule);
        \draw [->] (trule) -- node [name=o] {$output$}(output);
    \end{tikzpicture}

    \end{document}

But there is too much space between the words and the diagram.

diagramlatex1

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  • Good looking MWE!
    – A Feldman
    Mar 20, 2016 at 3:38
  • Where it says node distance=4cm, what happens if you make it smaller?
    – cfr
    Mar 20, 2016 at 4:29
  • 1
    Rather than setting a large value for node distance=4cm for the whole picture, set it for individual blocks which you know to be large. e.g, \node [virtual, right of=trule, node distance=3cm] (output) {};
    – AJN
    Mar 20, 2016 at 4:32

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