\usepackage[latin1]{inputenc}
\usepackage[brazil]{babel}
\usepackage{supertabular} %suuuuper tabelas
\usepackage{indentfirst} %recuar o primeiro parágrafo de cada seção
\usepackage{color}%fontes coloridas
\usepackage{oldgerm}%fontes góticas
\usepackage{textfit}%fontes GRANDES
\usepackage{eso-pic,graphicx}
\usepackage{nicefrac} %frações legais
\usepackage{pslatex} %gera pdf's decentes
\usepackage{epsfig} %colocação de figuras eps
%\usepackage{fixfoot} %brincadeiras com notas de rodapé
\usepackage{subfigure} %várias figuras em uma
%\usepackage{esdiff}%escrever diferenciais do jeito certo
\usepackage{latexsym,amsfonts,amsmath,amssymb}%um monte de coisas


\usepackage{multicol}
\usepackage{pstricks,pst-grad}
\usepackage[amssymb,textstyle,pstricks]{SIunits}

\newenvironment{poster}{
  \begin{center}
  \begin{minipage}[c]{0.98\textwidth}
}{
  \end{minipage} 
  \end{center}
}



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                pcolumn                       %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\newenvironment{pcolumn}[1]{
  \begin{minipage}{#1\textwidth}
  \begin{center}
}{
  \end{center}
  \end{minipage}
}



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                pbox                          %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\newrgbcolor{lcolor}{0. 0. 0.80}
\newrgbcolor{gcolor1}{1. 1. 1.}
\newrgbcolor{gcolor2}{.80 .80 1.}

\newcommand{\pbox}[4]{
\psshadowbox[#3]{
\begin{minipage}[t][#2][t]{#1}
#4
\end{minipage}
}}



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                myfig                         %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \myfig - replacement for \figure
% necessary, since in multicol-environment 
% \figure won't work

\newcommand{\myfig}[3][0]{
\begin{center}
  \includegraphics[width=#3\hsize,angle=#1]{#2}
  \nobreak\medskip
\end{center}}



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                mycaption                     %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \mycaption - replacement for \caption
% necessary, since in multicol-environment \figure and
% therefore \caption won't work

%\newcounter{figure}
\setcounter{figure}{1}
\newcommand{\mycaption}[1]{
  \begin{quote}
    \begin{center}
      {{\sffamily\textbf{Figura \arabic{figure}}} #1}
    \end{center}
  \end{quote}
  \stepcounter{figure}
}



\setcounter{table}{1}
\newcommand{\mytcaption}[1]{
  \begin{quote}
    \begin{center}
      {{\sffamily\textbf{Tabela \arabic{table}}} #1}
    \end{center}
  \end{quote}
  \stepcounter{table}
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                figura                     %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %\figura - substituto do \figure
% necessary, since in multicol-environment \figure won't work
\newcommand{\figura}[3]{
\begin{center}\pbox{0.9\columnwidth}{}{linewidth=1mm,framearc=0.1,linecolor=blue,framesep=1em}{
  \myfig{#1}{.9}
  \mycaption{\label{#3}#2}
}\end{center}\vspace{1cm}
}


\newcommand{\tabela}[3]{\vspace{1cm}\begin{center}
  \mytcaption{\label{#1}#2}
  #3
\end{center}\vspace{1cm}
}