GasTex Example(For Automata)

http://www.liacs.nl/~hoogeboo/praatjes/gastex/

GasTeX (Graphs and Automata Simplified in TeX, by Paul Gastin) is a package for drawing figures with a LaTeX interface and the help of Postscript. Everyone that needs to draw automata in his LaTeX documents on a regular basis should have a look at this package.
The examples below are mainly to remind me of the possible settings for figures I sometimes need.

\begin{figure}[H]
  \begin{center}
    \unitlength=4pt
    \begin{picture}(15, 28)(0,-10)
      \gasset{Nw=5,Nh=5,Nmr=2.5,curvedepth=3}
      \thinlines
      \node(A0)(7.5,0){$0$}
      \node[Nmarks=i,iangle=90](A1)(0,13){$1$}
      \node[Nmarks=if,iangle=90,fangle=90](A2)(15,13){$2$}
      \drawloop[loopangle=180](A1){$a$}
      \drawloop[loopangle=0](A2){$b$}
      \drawedge(A1,A2){$a$}
      \drawedge(A2,A1){$b$}
      \drawedge(A2,A0){$a$}
      \gasset{curvedepth=-3}
      \drawedge[ELside=r](A1,A0){$b$}
      \drawloop[loopangle=270](A0){$a, b$}
    \end{picture}
  \end{center}
  \caption{La complétion de l'automate.}
\end{figure}

	Code
binary relation
	Code
binary tree (post order)
	Code
undirected graph (a)
	Code
undirected graph (b)
	Code
undirected graph (c - linear)
	Code
fsa (final 0 or even 1's)
	Code
fsa (subword 00 or even 1's)
	Code
fsa (ends in a - - , deterministic)
	Code
cube (strings Hamilton dist 1)
	Code
CMB Euler path
	Code
CMB probes (A..G) and clones (1..6)
	Code
CMB PQ trees
	Code
Hilbert curve (tiles)