\documentclass[a4paper,onecolumn]{IEEETran}
\usepackage{bloques}
\usepackage{verbatim}
\oddsidemargin=-1.5cm 


\title{The Bloques Package}
\author{Alejandro Garces Ruiz \\ alejandrogarces@gmail.com}

\begin{document}

\maketitle

\section{Functions}


The \textbf{bloques} package is a very simple set of commands based on \textbf{tikz} to generate control blocks.  The only packages required in the definition are:

\begin{verbatim}
	\usepackage{tikz}
	\usepackage{bloques}
\end{verbatim}

The package is very efficient for sequential blocks as follow:

\begin{verbatim}
\bStart{TEXT}
\bPlusDown{TEXT}
\bPlusUp{TEXT}
\bMinusDown{TEXT}
\bMinusUp{TEXT}
\bEnd{TEXT}
\bGain{TEXT}

\bGainPlus{TEXT1}{TEXT2}
\bGainMinus{TEXT1}{TEXT2}


\end{verbatim}

For Feedback controls, it is required to mark the nodes with the following functions:

\begin{verbatim}

\bMinusF{NODENAME}
\bPlusF{NODENAME}
\bFeedBack{TEXT}{NODENAME}
\bCrossGain{TEXT}{NODENAME1}{NODENAME2}
\bNewStart{TEXT}{POSITION}
\bMarkNode{NODENAME}
\bMarkNodeUp{NODENAME}
\bMarkNodeDown{NODENAME}
\end{verbatim}


To change colors and distances, the following functions are available

\begin{verbatim}
	\bShadow{NUMBER}  	% default = 0
	\bColorB{COLOR}   	% default = white 
	\bColorT{COLOR}			% default = black
	\ydistance{NUMBER}	% default = 1.2 cm
\end{verbatim}

\newpage

\section{examples}

\begin{figure}[h!]
\begin{tikzpicture}	
	\bStart{$X_{ref}$}
	\bMinusDown{$X$}
	\bGain{$k_{p}$}	
	\bPlusUp{$Y$}
	\bGainPlus{$U$}{$\omega L$}
	\bEnd{$V_{x}$}
	\node[right of = NODO1, text width=8.5cm, node distance = 6.0cm, drop shadow={opacity=1}, fill=blue!20, rounded corners] (C4) 
	{
	\begin{verbatim}	
	\begin{figure}
	\begin{tikzpicture}	
	   \bStart{$X_{ref}$}
	   \bMinusDown{$X$}
	   \bGain{$k_{p}$}	
	   \bPlusUp{$Y$}
	   \bGainPlus{$U$}{$\omega L$}
	   \bEnd{$V_{x}$}	
	\end{tikzpicture}
	\end{figure}
	\end{verbatim}
	};
	
\end{tikzpicture}
\caption{Simple Control diagram }
\end{figure}



\begin{figure}[h!]
\begin{tikzpicture}	
	\bShadow
	\bStart{$X_{ref}$}
	\bMinusDown{$X$}
	\bGain{$k_{p}$}	
	\bPlusUp{$Y$}
	\bGainPlus{$U$}{$\omega L$}
	\bEnd{$V_{x}$}
	\node[right of = NODO1, text width=8.5cm, node distance = 6.0cm, drop shadow={opacity=1}, fill=blue!20, rounded corners] (C4) 
	{
	\begin{verbatim}	
	\begin{figure}
	\begin{tikzpicture}	
	 \bShadow
	    \bStart{$X_{ref}$}
	    \bMinusDown{$X$}
	    \bGain{$k_{p}$}	
	    \bPlusUp{$Y$}
	    \bGainPlus{$U$}{$\omega L$}
	    \bEnd{$V_{x}$}	  
	\end{tikzpicture}
	\end{figure}
	\end{verbatim}
	};
	
\end{tikzpicture}
\caption{Control diagram with shadow}
\end{figure}



\begin{figure}[h!]
\begin{tikzpicture}[thick]	
 \draw[fill=blue!20, draw=white]  (-0.5,-3) rectangle (8,2);
 \draw[fill=green!20, dashed,thick] (4,-2) rectangle (7,0.5);
  \bShadow
  \bColorB{blue!80!green!50}
	\bColorT{yellow}
	\bColorL{white}
	\bStart{$X_{ref}$}
	\bMinusDown{$X$}
	\bGain{$k_{p}$}	
	\bColorB{blue!30!green!80}
	\bPlusUp{$Y$}
	\bGainPlus{$U$}{$\omega L$}
	\bEnd{$V_{x}$}
	\node[right of = NODO1, text width=8.5cm, node distance = 6.0cm, drop shadow={opacity=1}, fill=blue!20, rounded corners] (C4) 
	{
	\begin{verbatim}	
	\begin{figure}
	\begin{tikzpicture}[thick]
			\draw[fill=blue!20, draw=white]  
			     (-0.5,-3) rectangle (8,2);
	    \draw[fill=green!20, dashed] 
	         (4,-2) rectangle (7,0.5);
	    
	 \bShadow
	 \bColorB{blue!50!green!45}
	 \bColorT{yellow}
	 \bColorL{white}
	    \bStart{$X_{ref}$}
	    \bMinusDown{$X$}
	    \bGain{$k_{p}$}	
	 \bColorB{blue!30!green!80}
	    \bPlusUp{$Y$}
	    \bGainPlus{$U$}{$\omega L$}
	    \bEnd{$V_{x}$}	
	\end{tikzpicture}
	\end{figure}
	\end{verbatim}
	};
	
\end{tikzpicture}
\caption{Control diagram with shadow and different colors}
\end{figure}




\begin{figure}[h!]
	\begin{tikzpicture}
		\bColorB{blue!70!green!20}		
		\bStart{$X_{r}$}
		\bMinusF{NODEX}
		\bGain{$k_{p}+\frac{k_{i}}{S}$}
		\bFeedBack{$k_{x}$}{NODEX}
		\bEnd{$X$}
		
	\node[right of = NODO1, text width=8.5cm, node distance = 6.0cm, drop shadow={opacity=1}, fill=blue!20, rounded corners] (C4) 
	{
	\begin{verbatim}	
\begin{figure}
	\begin{tikzpicture}
		   \bColorB{blue!70!green!20}		   
		   \bStart{$X_{r}$}
		\bMinusF{NODEX}
		   \bGain{$k_{p}+\frac{k_{i}}{S}$}
		\bFeedBack{$k_{x}$}{NODEX}
		   \bEnd{$X$}		
	\end{tikzpicture}
\end{figure}	
	\end{verbatim}		
	}	;
		
	\end{tikzpicture}
	\caption{Control diagram with feedback}
\end{figure}




\begin{figure}[h!]
	\begin{tikzpicture}
		\bColorB{blue!30!green!50}
		\bColorT{white}
		\bStart{$X_{r}$}
		\bMinusF{NODEX}
		\bGain{$k_{p}+\frac{k_{i}}{S}$}
		\bGain{$K_{2}$}
		\bPlusDown{$Y$}
		\ydistance{2.5cm}				
		\bFeedBack{$k_{x}$}{NODEX}
		\bEnd{$X$}
		
\node[right of = NODO1, text width=8.5cm, node distance = 6.0cm, drop shadow={opacity=1}, fill=blue!20, rounded corners] (C4) 
	{
	\begin{verbatim}	

\begin{figure}
	\begin{tikzpicture}
	    \bColorB{blue!30!green!50}
	    \bColorT{white}
	    \bStart{$X_{r}$}
	    \bMinusF{NODEX}
	    \bGain{$k_{p}+\frac{k_{i}}{S}$}
	    \bGain{$K_{2}$}
	    \bPlusDown{$Y$}
		\ydistance{2.5cm}				
	    \bFeedBack{$k_{x}$}{NODEX}
	    \bEnd{$X$}
	\end{tikzpicture}
\end{figure}

	
	\end{verbatim}		
	}	;		
		
		
	\end{tikzpicture}
	\caption{Change the ydistance}
\end{figure}


\begin{figure}[h!]
	\begin{tikzpicture}
		\bStart{$I_{d(ref)}=0$}
		\bMinusDown{$I_{d}$}
		\bGain{PI1}
		\bPlusF{NODET}
		\bEnd{$V_{d}$}
		\bNewStart{$\omega_{ref}$}{(-2,-4)}
		\bMinusDown{$\omega_{s}$}
		\bGain{PI2}
		\bMinusUp{$I_{q}$}
		\bMarkNodeUp{NODEX}
		\bGain{PI3}
		\bEnd{$V_{q}$}		
		\bCrossGain{$\omega L$} {NODEX} {NODET}
		
		
		\node[right of = NODO1, text width=8.5cm, node distance = 6.0cm, drop shadow={opacity=1}, fill=blue!20, rounded corners] (C4) 
	{
	\begin{verbatim}
	
	
\begin{figure}
	\begin{tikzpicture}
		\bStart{$I_{d(ref)}=0$}
		   \bMinusDown{$I_{d}$}
		   \bGain{PI1}
		   \bPlusF{NODET}
		   \bEnd{$V_{d}$}
		\bNewStart{$\omega_{ref}$}{(-2,-4)}
		   \bMinusDown{$\omega_{s}$}
		   \bGain{PI2}
		   \bMinusUp{$I_{q}$}
		\bMarkNodeUp{NODEX}
		   \bGain{PI3}
		   \bEnd{$V_{q}$}		
		\bCrossGain{$\omega L$} {NODEX} {NODET}
	\end{tikzpicture}
\end{figure}
		
	\end{verbatim}
	};
		
	\end{tikzpicture}
	\caption{More compex controls}
\end{figure}


\end{document}