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		<title>Orientation of a closed path with Asymptote &#8211; fig0040</title>
		<link>http://www.piprime.fr/860/orientation-of-a-closed-path-with-asymptote-fig0040/</link>
		<comments>http://www.piprime.fr/860/orientation-of-a-closed-path-with-asymptote-fig0040/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 22:36:44 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[Path Orientation]]></category>
		<category><![CDATA[Surveys]]></category>

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		<description><![CDATA[You may view all the posts of the category "Path Orientation" (Compiled with Asymptote version 1.84svn-r4619) // Use of the windingnumber works also for CROSSED curves size(8cm,10cm,false); import math; bool counterclockwise(path g) { // Return "true" if "g" is counterclockwise // Retounre "true" si "g" est dans le sens contraire des aiguilles d'une montre return [...]]]></description>
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		<title>Orientation of a closed path with Asymptote &#8211; fig0030</title>
		<link>http://www.piprime.fr/859/orientation-of-a-closed-path-with-asymptote-fig0030/</link>
		<comments>http://www.piprime.fr/859/orientation-of-a-closed-path-with-asymptote-fig0030/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 21:36:44 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[Path Orientation]]></category>
		<category><![CDATA[Surveys]]></category>

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		<description><![CDATA[You may view all the posts of the category "Path Orientation" (Compiled with Asymptote version 1.84svn-r4619) // Use of the native windingnumber Asymptote routine // this is the most fast and robust. // Utilisation du nombre d'enroulement avec la routine native windingnumber d'Asymptote // c'est plus rapide et plus robuste. /* Explanations are here: http://mathworld.wolfram.com/ContourWindingNumber.html [...]]]></description>
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		<title>Orientation of a closed path with Asymptote &#8211; fig0020</title>
		<link>http://www.piprime.fr/858/orientation-of-a-closed-path-with-asymptote-fig0020/</link>
		<comments>http://www.piprime.fr/858/orientation-of-a-closed-path-with-asymptote-fig0020/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 20:36:44 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[Path Orientation]]></category>
		<category><![CDATA[Surveys]]></category>

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		<description><![CDATA[You may view all the posts of the category "Path Orientation" (Compiled with Asymptote version 1.84svn-r4619) size(6cm); bool counterclockwise(path g, int n=10^3) { // Return "true" if "g" (SIMPLE CURVE i.e. NON CROSSED) is counterclockwise // Retounre "true" si "g" (NON CROISÉ) est dans le sens contraire des aiguilles d'une montre if (!cyclic(g) &#124;&#124; length(g)==0) [...]]]></description>
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		<title>Orientation of a closed path with Asymptote &#8211; fig0010</title>
		<link>http://www.piprime.fr/857/orientation-of-a-closed-path-with-asymptote-fig0010/</link>
		<comments>http://www.piprime.fr/857/orientation-of-a-closed-path-with-asymptote-fig0010/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 19:36:44 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[Path Orientation]]></category>
		<category><![CDATA[Surveys]]></category>

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		<description><![CDATA[You may view all the posts of the category "Path Orientation" (Compiled with Asymptote version 1.84svn-r4619) /* About the used algorithms look at: http://cgafaq.info/wiki/Simple_Polygon_Orientation */ size(8cm, false); real signedArea(pair [] pt) { // Return the signed area of a simple (NON CROSSED) polygon of vertex "pt" // Retourne l'aire algébrique d'un polygone NON CROIÉ pair [...]]]></description>
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		<title>L-System with Asymptote &#8211; fig0240</title>
		<link>http://www.piprime.fr/856/l-system-with-asymptote-fig0240/</link>
		<comments>http://www.piprime.fr/856/l-system-with-asymptote-fig0240/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 16:40:14 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[L-System]]></category>
		<category><![CDATA[Fractals]]></category>

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		<description><![CDATA[You may view all the posts of the category "L-System" (Compiled with Asymptote version 1.84svn-r4619) /*Inspirtaion*/ import Lsystem; size(10cm,10cm); settings.outformat="pdf"; // for opacity string[][] rules=new string[][]{{"F", "FF"},{"X", "F-[[X]+X]+F[+FX]-X"}}; Lsystem plant=Lsystem("X", rules, La=22.5, Lai=90); plant.iterate(8); path[] g=plant.paths(); tree g=plant.tree(); for (int i:g.keys) { if((g[i].depth &#60;= 2 )) draw(g[i].g, yellow); } for (int i:g.keys) { if((g[i].depth &#62; [...]]]></description>
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		<title>L-System with Asymptote &#8211; fig0230</title>
		<link>http://www.piprime.fr/855/l-system-with-asymptote-fig0230/</link>
		<comments>http://www.piprime.fr/855/l-system-with-asymptote-fig0230/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 15:40:14 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[L-System]]></category>
		<category><![CDATA[Fractals]]></category>

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		<description><![CDATA[You may view all the posts of the category "L-System" (Compiled with Asymptote version 1.86svn-r4626) /*Inspirtaion*/ import Lsystem; size(10cm,10cm); settings.outformat="pdf"; // for opacity string[][] rules=new string[][]{{"F", "FF-[-F+F+F]+[+F-F-F]"}}; Lsystem plant=Lsystem("F", rules, La=22.5, Lai=90); plant.iterate(5); path[] g=plant.paths(); tree g=plant.tree(); for (int i:g.keys) { if((g[i].depth == 0)) draw(g[i].g, yellow); } for (int i:g.keys) { if((g[i].depth &#62; 0 )) [...]]]></description>
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		<title>L-System with Asymptote &#8211; fig0220</title>
		<link>http://www.piprime.fr/854/l-system-with-asymptote-fig0220/</link>
		<comments>http://www.piprime.fr/854/l-system-with-asymptote-fig0220/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 14:40:14 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[L-System]]></category>
		<category><![CDATA[Tiling]]></category>

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		<description><![CDATA[You may view all the posts of the category "L-System" (Compiled with Asymptote version 1.84svn-r4619) /* Double pavage de Penrose Source */ import Lsystem; size(8cm,0); string[][] rules={ {"W", "YF++ZF----XF[-YF----WF]++"}, {"X", "+YF--ZF[---WF--XF]+"}, {"Y", "-WF++XF[+++YF++ZF]-"}, {"Z", "--YF++++WF[+ZF++++XF]--XF"}, {"F", ""} }; Lsystem Penrose=Lsystem("[X][Y]++[X][Y]++[X][Y]++[X][Y]++[X][Y]",rules,La=36); Penrose.iterate(3); draw(Penrose.paths(), linewidth(bp)); shipout(bbox(2mm, FillDraw(lightyellow,linewidth(1mm)))); $(document).ready(function(){$("a#figc5d69e73a1e4926078b8a3eae4a9e0e7").fancybox();});]]></description>
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		<title>L-System with Asymptote &#8211; fig0210</title>
		<link>http://www.piprime.fr/853/l-system-with-asymptote-fig0210/</link>
		<comments>http://www.piprime.fr/853/l-system-with-asymptote-fig0210/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 13:40:14 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[L-System]]></category>
		<category><![CDATA[Tiling]]></category>

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		<description><![CDATA[You may view all the posts of the category "L-System" (Compiled with Asymptote version 1.84svn-r4619) /* Pavage de Penrose Source */ import Lsystem; size(8cm,0); string[][] rules={ {"W", "YF++ZF----XF[-YF----WF]++"}, {"X", "+YF--ZF[---WF--XF]+"}, {"Y", "-WF++XF[+++YF++ZF]-"}, {"Z", "--YF++++WF[+ZF++++XF]--XF"}, {"F", ""} }; Lsystem Penrose=Lsystem("++ZF----XF-YF----WF",rules,La=36); Penrose.iterate(4); draw(Penrose.paths(), linewidth(bp)); shipout(bbox(2mm, FillDraw(lightyellow,linewidth(1mm)))); $(document).ready(function(){$("a#figc3eb3436545fa27a9e6ac062ccfc5abd").fancybox();});]]></description>
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		<title>L-System with Asymptote &#8211; fig0200</title>
		<link>http://www.piprime.fr/852/l-system-with-asymptote-fig0200/</link>
		<comments>http://www.piprime.fr/852/l-system-with-asymptote-fig0200/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 12:40:14 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[L-System]]></category>
		<category><![CDATA[Tiling]]></category>

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		<description><![CDATA[You may view all the posts of the category "L-System" (Compiled with Asymptote version 1.84svn-r4619) /* Pavage P3 de Penrose Drawing the Penrose tiling P3 */ import Lsystem; size(8cm,0); string[][] rules={ {"6","8F++9F----7F[-8F----6F]++"}, {"7","+8F--9F[---6F--7F]+"}, {"8","-6F++7F[+++8F++9F]-"}, {"9","--8F++++6F[+9F++++7F]--7F"}, {"F",""} }; Lsystem Penrose=Lsystem("[7]++[7]++[7]++[7]++[7]", rules, La=36); Penrose.iterate(4); draw(Penrose.paths(), linewidth(bp)); shipout(bbox(2mm, FillDraw(lightyellow,linewidth(1mm)))); $(document).ready(function(){$("a#figfc9d075860d6b5b5e29a80066901f3b9").fancybox();});]]></description>
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		<title>L-System with Asymptote &#8211; fig0190</title>
		<link>http://www.piprime.fr/851/l-system-with-asymptote-fig0190/</link>
		<comments>http://www.piprime.fr/851/l-system-with-asymptote-fig0190/#comments</comments>
		<pubDate>Thu, 01 Nov 2007 11:40:14 +0000</pubDate>
		<dc:creator>Ph. Ivaldi</dc:creator>
				<category><![CDATA[Asymptote]]></category>
		<category><![CDATA[L-System]]></category>
		<category><![CDATA[Fractals]]></category>

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		<description><![CDATA[You may view all the posts of the category "L-System" (Compiled with Asymptote version 1.84svn-r4619) /* Source */ import Lsystem; size(8cm,0); string[][] rules={ {"A", "X+X+X+X+X+X+"}, {"X", "[F+F+F+F[---X-Y]+++++F++++++++F-F-F-F]"}, {"Y", "[F+F+F+F[---Y]+++++F++++++++F-F-F-F]"} }; Lsystem spiral=Lsystem("AAAA",rules,La=15); spiral.iterate(6); draw(spiral.paths(), 0.9*green); shipout(bbox(2mm, Fill(black))); $(document).ready(function(){$("a#figba32c0defd6069e8d4020061e7f825eb").fancybox();});]]></description>
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