<html> <head> <meta name="Identifier-URL" content="http://melusine.eu.org/syracuse/"> <meta name="Author" content="$auteur_page"> <meta name="keywords" content="TeX, LaTeX, Metapost, Postscript, XML, D\&eacute;butants, Exemples"> <meta name="description" content="Site construit autour des formats de fichiers TeX, LaTeX, Metapost, Postscript et XML."> <meta name="REVISIT-AFTER" content="7 days"> <meta name="robots" content="All"> <meta name="generator" content="petitParseur 0.0.2  2002 Jean-Michel Sarlat"> <title>Syracuse - La courbe du dragon</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link rel="shortcut icon" href="/syracuse/favicon.ico" type="image/x-icon" /> <link rel="stylesheet" type="text/css" href="/syracuse/syracuse.css">  </head> <body bgcolor="white"> <p><a name="0" /></p>  <table width="100%"  cellpadding="0" cellspacing="0" border="0"> <tr> <td valign="top"> <table width="130" cellpadding="0" cellspacing="0" border="0"> <tr> <td 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<tr> <td width="15"><img src="/syracuse/images/c1gb.png" alt="c1bh" /></td> <td background="/syracuse/images/c1bb.png"><img src="/syracuse/images/c1bb.png" alt="----" /></td> <td width="15"><img src="/syracuse/images/c1db.png" alt="c1db" /></td> </tr> </table> </td> <td valign="top" width="100%"> <table border="0" cellpadding="10" cellspacing="0" width="100%"> <tr> <td><h2 class="entete">La courbe du dragon</h2> <hr noshade="noshade" size="1"> </td> </tr> <tr> <td>  <p class="standard">Elle est obtenue en itrant des <strong>rgles</strong> de substitution sur une chane de caractre (initialement <strong>axiome</strong>) qui pilote une tortue (L-Systems). </p>    <table align="center" border="1"><tr><td><img src="regles.png" alt="regles"></td></tr></table> <p class="standard">Idalement ces rgles sont rptes indfiniment; pour une reprsentation, on stoppe ce processus aprs un certain nombre d'itrations. En fin de dveloppement la lettre D est remplace par le mouvement --F++FF et la lettre E par F--F++ (F : dplacement unitaire).</p>  <ul> <li>  Les <a href="dragon01.xml">tapes</a> de 2  10 (par saut de 2). </li> <li>  L'tape 9 avec quelques <a href="dragon02.xml">points</a> marqus. </li> <li>  Le source de la <a href="dragon03.xml">vue</a> ci-dessous. </li> <li>  Le code de la <a href="tortue.xml">tortue</a>. </li> </ul>    <table align="center">    <tr>     <td><img src="dragon03.png" alt="dragon"></td>    </tr>    <tr>     <td align="center">Une vision de la courbe du dragon</td>    </tr>   </table>    </td> </tr> <tr> <td style="text-align:center;"><hr nospan="nospan" size="1" /> <span class="compteur">(132115)</span> <span class="pied_de_page"> dition : <a href="mailto:jsarlat@planete.net">Jean-Michel Sarlat</a> - Mise  jour : 5 f&eacute;vrier 2002 - Page compose par <a href="/syracuse/xml/pP/">petitParseur</a> le vendredi 25 avril 2003. </span>  </td> </tr> </table> </td> </tr> </table> </body> </html> 
