MathematicalEngineeringDeepLearning/tikz/figure7-7-a-bidirectional-rnn.tex at master · yoninazarathy/MathematicalEngineeringDeepLearning · GitHub

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\documentclass[border=1cm]{standalone}

\usepackage{tikz}
\usetikzlibrary{shapes.geometric, shapes.misc}
\usetikzlibrary{cd, fit, calc}
\usetikzlibrary{positioning}
\usetikzlibrary{decorations.markings}
\usepackage{ifthen}
\usepackage{medl_colors}
\usepackage{arrayjob}

\usepackage{graphicx} %package to manage images
\graphicspath{ {./images/} }

\begin{document}
\begin{tikzpicture}

\node[draw, dashed, border-grey, rounded corners, minimum width=9.5cm, minimum height=1cm] at (6,0) (rect1) {};
\node[draw, dashed, border-grey, rounded corners, minimum width=9.5cm, minimum height=1cm] at (7,-1.5) (rect2) {};

\foreach \i in {1,...,5}
{
    \pgfmathparse{\i-1}\edef\j{\pgfmathresult};
    \ifthenelse{\i = 4}
    {
        \node[] (unit1\i) at (\i*2, 0) { - - - };
        \node[] (unit2\i) at (1+\i*2, -1.5) { - - - };
        \node[below of=unit1\i, node distance=4cm] (bottom1\i) { - - - };
        \node[above of=unit2\i, node distance=4cm] (bottom2\i) { - - - };
    }
    {
        \node[blueshape, rounded corners, minimum width=1cm, minimum height=.5cm] (unit1\i) at (\i*2, 0) {\footnotesize Unit};
        \node[blueshape, rounded corners, minimum width=1cm, minimum height=.5cm] (unit2\i) at (1+\i*2, -1.5) { \footnotesize Unit};
        \node[greenshape, rounded corners, minimum width=.5cm, minimum height=2cm, below of=unit1\i, node distance=4cm] (bottom1\i) { };
        \node[redshape, rounded corners, minimum width=.5cm, minimum height=2cm, above of=unit2\i, node distance=4cm] (bottom2\i) { };

        \draw[Triangle-,thickline] (unit1\i) -- (bottom1\i.north);
        \draw[-Triangle,thickline] (unit1\i) -- ([xshift=-2mm]bottom2\i.south);

        \draw[-Triangle,thickline] (unit2\i) -- (bottom2\i.south);
        \draw[Triangle-,thickline] (unit2\i) -- (bottom1\i.north);
    }

    \ifnum\i>1
        \draw[-Triangle,thickline] (unit1\j) -- (unit1\i);
        \draw[Triangle-,thickline] (unit2\j) -- (unit2\i);
    \fi
}

\end{tikzpicture}
\end{document}