How to draw following figure or similar using tikz and pgf

Question

My thesis superviser asks to redraw this picture in order to cite it in my paper. Could someone help how? Maybe there is a software that can make drawn picture a latex code

enter image description here

Answer 1

Perhaps this will get you started. First make a suitable layout of the boxes by editing the foreach loop. After that, make the boxes one-by-one, e.g.

\draw (2,7) node[rectangle,fill=green!20]{$C$};
\draw (3,7) node[rectangle,fill=green!20]{$T_1$};

\documentclass[border=2mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning,shapes.symbols}

\begin{document}

\begin{tikzpicture}[block/.style={signal, draw, signal to=north}]
\filldraw[fill=gray!20,rounded corners=5mm] (0,0) rectangle (10,10);
\filldraw[fill=blue!30!white,very thick] (1,4) rectangle (9,8);
\foreach \x in {2,3,4,5,6,7,8} {
\draw (\x,3) node[block,fill=yellow!50]{text};
\draw (\x,5) node[rectangle,fill=red!20]{text};
\draw (\x,7) node[rectangle,fill=green!20]{text};
\draw[->,line width=1mm] (\x,3.5) -- (\x,4.5);
}


\begin{scope}[shift={(13,0)}]
% #1, code needed also below
\filldraw[fill=gray!20,rounded corners=5mm] (0,0) rectangle (10,10);
\end{scope}

\begin{scope}[shift={(15,-0.2)}]
\filldraw[fill=gray!20,rounded corners=5mm] (0,0) rectangle (10,10);
\end{scope}

\begin{scope}[shift={(17,-0.4)}]
\filldraw[fill=gray!20,rounded corners=5mm] (0,0) rectangle (10,10);
\draw (0,0) circle (2pt);

\filldraw[fill=gray!20,rounded corners=5mm] (0,0) rectangle (10,10);
% copy paste contents from #1 and edit a little
\filldraw[fill=blue!30!white,very thick] (1,4) rectangle (9,8);
\foreach \x in {2,3,4,5,6,7,8} {
\draw (\x,3) node[block,fill=yellow!50]{text};
\draw (\x,5) node[rectangle,fill=red!20]{text};
\draw (\x,7) node[rectangle,fill=green!20]{text};
\draw[->,line width=1mm] (\x,3.5) -- (\x,4.5);
}
\end{scope}

\end{tikzpicture}
\end{document}