Pstricks

Pstricks é um pacote do latex para desenhar diagramas e figuras através de comandos latex.

Para carregar os pacotes é necessário colocar as linhas

\documentclass[12pt]{article}
\usepackage{amsmath,amsthm,graphicx}
\usepackage{pstricks, pst-node ,pst-tree,multido,pst-3dplot}

no início do arquivo.

Exemplo Tridimensional

Uma caixa:

\begin{pspicture}(-1.7,-1.7)(3.9,2.9)
%\psframe(-1.7,-1.7)(3.9,2.9)
   \psset{coorType=2,Alpha=90,origin=lb}
   %\pstThreeDCoor[linecolor=black,xMax=4,yMax=4,zMax=4]
   {\psset{fillstyle=solid,drawCoor=false,dotstyle=*}
    \pstThreeDSquare(0,0,0)(0,6,0)(0,0,2)
    \pstThreeDSquare(0,0,0)(3,0,0)(0,0,2)
    \pstThreeDSquare(0,1,0)(3,0,0)(0,0,2)
    \pstThreeDSquare(0,3,0)(3,0,0)(0,0,2)
    \pstThreeDSquare(0,6,0)(3,0,0)(0,0,2)
    \pstThreeDSquare(3,0,0)(0,6,0)(0,0,2)
   }
\end{pspicture}

Um cilindro:

 \begin{pspicture}(-3,-2)(3,7)
  \psset{Beta=30}
  %\pstThreeDCoor[zMax=7]
  \psCylinder[fillstyle=solid,increment=5]{2}{5}
 \end{pspicture}

Outro cilindro de rotação:

 \begin{pspicture}(-3,-2)(3,7) %\psset{Beta=30}
  \pstThreeDSquare[fillstyle=solid,fillcolor=gray](0,0,0)(0,2,0)(0,0,5)
  \pstIIIDCylinder[increment=0]{2}{5}              %,fillstyle=solid
  \pstThreeDLine(1.41,-1.41,0)(1.41,-1.41,5)       %faz as linhas laterais do cilindro
  \pstThreeDLine(-1.41,1.41,0)(-1.41,1.41,5)       %que são difíceis de conseguir no lugar certo
 \end{pspicture}