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<div class="moz-cite-prefix">Bonjour,<br>
<br>
Le 04/07/2014 12:18, Jean-François PIETRI a écrit :<br>
</div>
<blockquote
cite="mid:CAAudZLEmjafpmsWUuxrOen_r0dkuaGqk8ZCqrU7eSou6J_MynQ@mail.gmail.com"
type="cite">
<div dir="ltr">Bonjour,
<div><br>
</div>
<div style="">Le programme ci-dessous permet d'obtenir le dragon
de Heighway, mais je regrette qu'il arrive d'un bloc.</div>
<div style="">Comme je me lance à peine avec scilab, quelqu'un
pourrait-il me dire comment le modifier pour que le dragon
apparaisse progressivement en 30 secondes par exemple.</div>
</div>
</blockquote>
Voici une possible mise en oeuvre :<br>
<pre style="font-family:Monospaced;font-style:normal;font-size:12.0;"><span style="color:rgb(176,24,19);">function</span> <span style="color:rgb(131,67,16);font-weight:bold;">point_image</span><span style="color:rgb(92,92,92);">=</span><span style="color:rgb(0,0,0);">transformation</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(131,67,16);font-weight:bold;">point_antecedent</span><span style="color:rgb(0,0,0);">, </span><span style="color:rgb(131,67,16);font-weight:bold;">choix</span><span style="color:rgb(74,85,219);">)</span>
<span style="color:rgb(160,32,240);">if</span> <span style="color:rgb(131,67,16);font-weight:bold;">choix</span> <span style="color:rgb(92,92,92);">==</span> <span style="color:rgb(188,143,143);">1</span> <span style="color:rgb(160,32,240);">then</span>
<span style="color:rgb(0,0,0);">A</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(74,85,219);">[</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(0,0,0);">;</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(74,85,219);">]</span> <span style="color:rgb(0,0,0);">;</span> <span style="color:rgb(0,0,0);">V</span><span style="color:rgb(92,92,92);">=</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(188,143,143);">0</span><span style="color:rgb(0,0,0);">;</span><span style="color:rgb(188,143
,143);">0</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">end</span>
<span style="color:rgb(160,32,240);">if</span> <span style="color:rgb(131,67,16);font-weight:bold;">choix</span> <span style="color:rgb(92,92,92);">==</span> <span style="color:rgb(188,143,143);">2</span> <span style="color:rgb(160,32,240);">then</span>
<span style="color:rgb(0,0,0);">A</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(74,85,219);">[</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(0,0,0);">;</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">0.5</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(74,85,219);">]</span> <span style="color:rgb(0,0,0);">;</span> <span style="color:rgb(0,0,0);">V</span><span style="color:rgb(92,92,92);">=</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(188,143
,143);">1</span><span style="color:rgb(0,0,0);">;</span><span style="color:rgb(188,143,143);">0</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">end</span>
<span style="color:rgb(131,67,16);font-weight:bold;">point_image</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(0,0,0);">A</span> <span style="color:rgb(92,92,92);">*</span> <span style="color:rgb(131,67,16);font-weight:bold;">point_antecedent</span> <span style="color:rgb(92,92,92);">+</span> <span style="color:rgb(0,0,0);">V</span>
<span style="color:rgb(176,24,19);">endfunction</span>
<span style="color:rgb(0,0,0);">nPoints</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(188,143,143);">6000</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">P</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(50,185,185);">zeros</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(0,0,0);">nPoints</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(174,92,176);text-decoration:underline;">clf</span>
<span style="color:rgb(174,92,176);text-decoration:underline;">plot</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">0</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">0</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">*b</span><span style="color:rgb(188,143,143);">"</span><span style="color:rgb(74,85,219);">)</span>
<span style="color:rgb(0,0,0);">c</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(174,92,176);text-decoration:underline;">gce</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">c</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">parent</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">data_bounds</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(74,85,219);">[</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">0.4</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">0.4</span><span style="color:rgb(0,0,0);">;</span><span style="color:rgb(188,143,143);">1.2</span> <span style="color:rgb(188,143,143);">0.7</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">c</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(0,0,0);">c</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">children</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">for</span> <span style="color:rgb(0,0,0);">i</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(188,143,143);">2</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(0,0,0);">nPoints</span>
<span style="color:rgb(0,0,0);">tirage</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(50,185,185);">rand</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">if</span> <span style="color:rgb(0,0,0);">tirage</span> <span style="color:rgb(92,92,92);"><</span> <span style="color:rgb(188,143,143);">0.5</span> <span style="color:rgb(160,32,240);">then</span> <span style="color:rgb(0,0,0);">choix</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(188,143,143);">1</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">else</span> <span style="color:rgb(0,0,0);">choix</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">end</span>
<span style="color:rgb(0,0,0);">tmp</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(0,0,0);">transformation</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(0,0,0);">P</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(0,0,0);">i</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">1</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(0,0,0);">choix</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span><span style="color:rgb(100,174,100);font-style:italic;">// P(:,i) est la colonne numéro i</span>
<span style="color:rgb(0,0,0);">c</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">data</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(255,170,0);">$</span><span style="color:rgb(92,92,92);">+</span><span style="color:rgb(188,143,143);">1</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(74,85,219);">)</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(0,0,0);">tmp</span><span style="color:rgb(92,92,92);">.'</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">P</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(0,0,0);">i</span><span style="color:rgb(74,85,219);">)</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(0,0,0);">tmp</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(160,32,240);">end</span></pre>
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