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<channel>
	<title>complexitys &#187; geometry</title>
	<atom:link href="http://complexitys.com/category/geometry/feed/" rel="self" type="application/rss+xml" />
	<link>http://complexitys.com</link>
	<description>Open research platform about architecture and complex geometry [HDA_Paris blog]</description>
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		<title>Formation Grasshopper / Atelier d’Architecture Paramétrique / #gh3D #Paris Septembre 2010</title>
		<link>http://complexitys.com/francais/formationparametrique/</link>
		<comments>http://complexitys.com/francais/formationparametrique/#comments</comments>
		<pubDate>Thu, 08 Jul 2010 08:30:25 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[downloads]]></category>
		<category><![CDATA[français]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[#gh3D]]></category>
		<category><![CDATA[architecture]]></category>
		<category><![CDATA[atelier]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[formation]]></category>
		<category><![CDATA[grasshopper]]></category>
		<category><![CDATA[parametrique]]></category>
		<category><![CDATA[paris]]></category>
		<category><![CDATA[rhinoforyou]]></category>
		<category><![CDATA[training]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1860</guid>
		<description><![CDATA[
Comme nous avions déjà annoncé en Mai, et comme il est annoncé sur le site de Rhinoceros,  HDA démarre une nouvelle activité en collaboration avec Rhinoforyou, et organise des formations Grasshopper intégrant un Atelier pratique d&#8217;Architecture Parametrique.
Un de ces cours de formation est prévu à Paris du 20 au 22 septembre. Nous souhaitons proposer les [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignnone size-full wp-image-1859" title="formation grasshopper" src="http://complexitys.com/wp-content/uploads/2010/07/formation-grasshopper.jpg" alt="formation grasshopper" width="590" height="360" /></p>
<p>Comme nous avions déjà annoncé <a href="http://complexitys.com/software/formationgrasshopper/" target="_blank">en Mai</a>, et comme il est annoncé sur le site de <a href="http://www2.mcneel.com/training/results_by_city.asp?CountryID=79&amp;StateID=&amp;ClassID=&amp;ScheduleID=&amp;SiteID=&amp;LanguageID=&amp;CityID=&amp;MarketSegmentID=&amp;DeliveryFormatID=&amp;ProductID=1&amp;OwnerID=&amp;DisplayLanguageID=&amp;SiteOffersCustomTraining=&amp;SiteOffersFreeEduTraining=&amp;McNeelOnly=&amp;template=Rhino" target="_blank">Rhinoceros</a>,  <a href="http://hdaparis.com" target="_blank">HDA</a> démarre une nouvelle activité en collaboration avec <a href="http://rhinoforyou.com" target="_blank">Rhinoforyou</a>, et organise des formations Grasshopper intégrant un Atelier pratique d&#8217;Architecture Parametrique.<br />
Un de ces cours de formation est prévu à Paris du 20 au 22 septembre. Nous souhaitons proposer les 3 formules suivantes en fonction des besoins des stagiaires:</p>
<p>- 3 jours ( Initiation+Atelier ) : du lundi 20 septembre au mercredi 22 septembre<br />
- 2 jours ( Initiation ) : lundi 20 et mardi 21 septembre<br />
- 1 jour ( Atelier ) : mercredi 22 septembre</p>
<p><span id="more-1860"></span>Les 2 premières journées sont consacrées aux « fondamentaux » de  Grasshopper avec en préambule une introduction au design et à  l’architecture paramétrique et leurs impacts dans la conception, la  création et la construction. La troisième journée sous forme d’atelier  est dédiée à l’étude de cas concrets proposés par les stagiaires, qui,  quelques jours avant la formation, pourront envoyer leurs projets par  mail à <a href="mailto:info@rhinoforyou.com?subject=Reservation%20formation%20Grasshopper%20pour%20les%20dates%20du%2028%20juin%20-%2030%20juin%202010." target="_blank">info@rhinoforyou.com.</a></p>
<p>.</p>
<p>Pour voir le programme ou pour plus d&#8217;information, consulter le PDF  ci-dessous où téléchargez <a class="downloadlink" href="http://complexitys.com/wp-content/plugins/download-monitor/download.php?id=7" title=" downloaded 44 times" >Formation Grasshopper Septembre 2010 | HDA + Rhinoforyou (44)</a></p>
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<p>.<br />
Inscriptions et renseignements: Jacques Hababou, <a href="mailto:info@rhinoforyou.com?subject=Reservation%20formation%20Grasshopper%20pour%20les%20dates%20du%2028%20juin%20-%2030%20juin%202010." target="_blank">info@rhinoforyou.com.<br />
</a>.<br />
Pour en savoir plus sur l’architecture paramétrique, vous pouvez  consulter les supports de présentation de notre dernière conférence <a href="../software/vers-une-architecture-parametrique-supports-de-presentation-definitifs/" target="_blank">&#8220;Vers une Architecture Paramètrique&#8221;</a> à l&#8217;Ecole  d&#8217;Architecture de Paris La Villette.</p>
<div>.<br />
L&#8217;image ci-dessus est du projet <a href="../english/dancing-with-nature/" target="_blank">Pylons of the Future &#8211; Dancing with Nature -</a> de <a href="http://hdaparis.com/" target="_blank"> HDA | Hugh Dutton Associés.</a> La conception et la  réalisation du projet sont développés avec Grasshopper et d&#8217;autre  logiciel de dessin et calcul de structure paramétriques.</div>
<div>Vous pouvez voir l&#8217;image à taille réelle sur <a href="http://www.flickr.com/photos/hdaparis/4600638507/" target="_blank">Flickr</a>.</div>
</div>
]]></content:encoded>
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		</item>
		<item>
		<title>Mandelbox trip</title>
		<link>http://complexitys.com/art/mandelbox-trip/</link>
		<comments>http://complexitys.com/art/mandelbox-trip/#comments</comments>
		<pubDate>Fri, 25 Jun 2010 13:56:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Architecture Games]]></category>
		<category><![CDATA[art]]></category>
		<category><![CDATA[english]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[complexity]]></category>
		<category><![CDATA[fractal]]></category>
		<category><![CDATA[video]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1802</guid>
		<description><![CDATA[
Fractals video by xlace. Thanks to @generatorx and @subblue for sharing this on twitter.
]]></description>
			<content:encoded><![CDATA[<p><object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="590" height="350" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"><param name="allowFullScreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="src" value="http://www.youtube.com/v/bO9ugnn8DbE&amp;hl=en_US&amp;fs=1&amp;" /><param name="allowfullscreen" value="true" /><embed type="application/x-shockwave-flash" width="590" height="350" src="http://www.youtube.com/v/bO9ugnn8DbE&amp;hl=en_US&amp;fs=1&amp;" allowscriptaccess="always" allowfullscreen="true"></embed></object></p>
<p>Fractals video by <a href="http://www.youtube.com/user/xlace" target="_blank">xlace.</a> Thanks to <a href="http://twitter.com/generatorx" target="_blank">@generatorx</a> and <a href="http://twitter.com/subblue" target="_blank">@subblue</a> for sharing this on twitter.</p>
]]></content:encoded>
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		</item>
		<item>
		<title>Flourescent Dome</title>
		<link>http://complexitys.com/we-like/flourescent-dome/</link>
		<comments>http://complexitys.com/we-like/flourescent-dome/#comments</comments>
		<pubDate>Mon, 21 Jun 2010 09:09:19 +0000</pubDate>
		<dc:creator>G. k.</dc:creator>
				<category><![CDATA[art]]></category>
		<category><![CDATA[constructivity]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[english]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[projects]]></category>
		<category><![CDATA[we like]]></category>
		<category><![CDATA[art architecture]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1789</guid>
		<description><![CDATA[
Situated at the foot of the entrance to Trinity Bellwoods Park, a fluorescent dome serves as a beacon and threshold between Park and City. It is universal in form and origin. Utilizing fluorescent tubes and Tesla Coils, its modes of construction and illumination pay tribute to the ambitions of Buckminster Fuller and Nikola Tesla: To [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome1a22.jpg.jpeg"><img class="alignnone size-medium wp-image-1791" title="cargo_dome1a22.jpg" src="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome1a22.jpg-590x401.jpg" alt="cargo_dome1a22.jpg" width="590" height="401" /></a></p>
<p><strong><span style="font-weight: normal;">Situated at the foot of the entrance to Trinity Bellwoods Park, a fluorescent dome serves as a beacon and threshold between Park and City. It is universal in form and origin. Utilizing fluorescent tubes and Tesla Coils, its modes of construction and illumination pay tribute to the ambitions of Buckminster Fuller and Nikola Tesla: To provide universally accessible models of architecture and energy distribution.<span id="more-1789"></span><br />
</span></strong></p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome2a.jpg.jpeg"><img class="alignnone size-medium wp-image-1792" title="cargo_dome2a.jpg" src="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome2a.jpg-590x401.jpg" alt="cargo_dome2a.jpg" width="590" height="401" /></a></p>
<p><strong><a href="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome4a.jpg.jpeg"><img class="alignnone size-medium wp-image-1793" title="cargo_dome4a.jpg" src="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome4a.jpg-590x401.jpg" alt="cargo_dome4a.jpg" width="590" height="401" /></a></strong></p>
<p><strong><a href="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome4a.jpg.jpeg"></a><a href="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome5a.jpg.jpeg"><img class="alignnone size-medium wp-image-1790" title="cargo_dome5a.jpg" src="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome5a.jpg-590x401.jpg" alt="cargo_dome5a.jpg" width="590" height="401" /></a></strong></p>
<p><strong><a href="http://complexitys.com/wp-content/uploads/2010/06/cargo_dome5a.jpg.jpeg"></a><br />
</strong> F30T8 Fluorescent Tubes, Aluminum Nodes, Tesla Coils<br />
24&#8242;-0&#8243; DIA x 18&#8242;-6&#8243;<br />
2007</p>
<p><strong>Michal Maciej Bartosik</strong> was born in Walbrzych, Poland. He studied Architecture at the University of Toronto School of Architecture and Landscape Architecture, and at the Politechnika Krakowska in Krakow. He works<br />
mutually between his interests in Urbanism, Architecture,Art and Design.</p>
]]></content:encoded>
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		</item>
		<item>
		<title>From our [ #flickr ] network</title>
		<link>http://complexitys.com/art/from-our-flickr-network/</link>
		<comments>http://complexitys.com/art/from-our-flickr-network/#comments</comments>
		<pubDate>Tue, 15 Jun 2010 10:03:17 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[art]]></category>
		<category><![CDATA[complexitys culture]]></category>
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		<category><![CDATA[geometry]]></category>
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		<category><![CDATA[flickr]]></category>
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		<category><![CDATA[tomas saraceno]]></category>
		<category><![CDATA[venise]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1752</guid>
		<description><![CDATA[
Tomas Saraceno
Title: 14 billions (working title)
Year: 2010
Dimensions/Scale 1:17 Latrodectus mactans web
Materials: Black rope, black elastic chords, hooks
Exhibited: Bonniers Konsthall, Stockholm, Sweden 2010.
Courtesy: The artist and Andersen’s Contemporary, Tanya Bonakdar Gallery and pinksummer contemporary art
___
As we have often highlighted on this blog, flickr is one of the most important social networking tools for our office, as [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.flickr.com/photos/9787847@N03/" target="_blank"><img class="alignnone size-medium wp-image-1759" title="tomas saraceno_IMG_6273" src="http://complexitys.com/wp-content/uploads/2010/06/tomas-saraceno_IMG_6273-590x393.jpg" alt="tomas saraceno_IMG_6273" width="590" height="393" /><br />
Tomas Saraceno</a><br />
Title: 14 billions (working title)<br />
Year: 2010<br />
Dimensions/Scale 1:17 Latrodectus mactans web<br />
Materials: Black rope, black elastic chords, hooks<br />
Exhibited: Bonniers Konsthall, Stockholm, Sweden 2010.<br />
Courtesy: The artist and Andersen’s Contemporary, Tanya Bonakdar Gallery and pinksummer contemporary art</p>
<p>___</p>
<p>As we have often highlighted on this blog, <a href="http://www.flickr.com/photos/hdaparis/" target="_blank">flickr</a> is one of the most important social networking tools for<a href="http://hda-paris.com" target="_blank"> our office</a>, as it allows us to keep in contact with many people and to share our work. One of the most successful operations we have carried out on flickr is the <a href="http://www.flickr.com/groups/passerella/pool/show/" target="_blank">Passerella 2006 Flickr Group</a> where we collect photos of our footbridge in Turin taken by people.<br />
With this post we would like to share a small selection of pictures coming from our Flickr network. This is a good example of how networking is about learning and discovering things, rather than just advertising your own work.<br />
<span id="more-1752"></span>While looking through our flickr contacts I noticed that most of them share their photos with an &#8220;all rights reserved&#8221; copyright. With the exception of those who are doing this for professional reasons, I think many people are simply not aware that they can choose their license. As a result Flickr chooses this copyright as the default license. I would invite people to check this and, if they can,  to use a creative commons license (for example <a href="http://creativecommons.org/licenses/by-nc/2.0/deed.en" target="_blank">this one</a> that Tomas Saraceno is using) in order to make it easier for their pictures to circulate on the web. There are lots of amazing photos in our contacts gallery which we cannot publish here because they are covered by a copyright.</p>
<p><a href="http://www.flickr.com/photos/9787847@N03/4500160436/sizes/l/" target="_blank"><img class="alignnone size-medium wp-image-1761" title="tomas saraceno_kp6" src="http://complexitys.com/wp-content/uploads/2010/06/tomas-saraceno_kp6-590x308.jpg" alt="tomas saraceno_kp6" width="590" height="308" /></a></p>
<p><a href="http://www.flickr.com/photos/9787847@N03/4464550427/sizes/l/" target="_blank"><img class="alignnone size-medium wp-image-1760" title="tomas saraceno_IMG_6424" src="http://complexitys.com/wp-content/uploads/2010/06/tomas-saraceno_IMG_6424-590x393.jpg" alt="tomas saraceno_IMG_6424" width="590" height="393" /></a></p>
<p>Kp6 and IMG_6424, <a href="http://www.flickr.com/photos/9787847@N03/" target="_blank">Tomas Saraceno</a> | we have already posted the artist&#8217;s work at Biennale of Venice <a href="../art/costruire-nuovi-mondi/" target="_blank">here</a> (in italian)</p>
<p>_</p>
<p><img class="alignnone size-medium wp-image-1755" title="core.formula_pratt CES HL-7" src="http://complexitys.com/wp-content/uploads/2010/06/core.formula_pratt-CES-HL-7-590x442.jpg" alt="core.formula_pratt CES HL-7" width="590" height="442" /><br />
<img class="alignnone size-medium wp-image-1754" title="core.formula_pratt CES HL-5" src="http://complexitys.com/wp-content/uploads/2010/06/core.formula_pratt-CES-HL-5-590x442.jpg" alt="core.formula_pratt CES HL-5" width="590" height="442" /><br />
<img class="alignnone size-medium wp-image-1753" title="core.formula_pratt CES HL-1" src="http://complexitys.com/wp-content/uploads/2010/06/core.formula_pratt-CES-HL-1-590x442.jpg" alt="core.formula_pratt CES HL-1" width="590" height="442" /><br />
Pratt CES HL-1, Pratt CES HL-5 and Prass CES HL-7, <a href="http://www.flickr.com/photos/8507144@N08/" target="_blank">core.formula</a></p>
<p>_</p>
<p><a href="http://www.flickr.com/photos/nachetz/4459954252/sizes/l/" target="_blank"><img class="alignnone size-medium wp-image-1756" title="nachetz_01_no title" src="http://complexitys.com/wp-content/uploads/2010/06/nachetz_01_no-title-590x590.jpg" alt="nachetz_01_no title" width="590" height="590" /></a><br />
<a href="http://www.flickr.com/photos/nachetz/4684287543/sizes/l/" target="_blank"><img class="alignnone size-medium wp-image-1757" title="nachetz_02_mi sono rotto.... il gomito" src="http://complexitys.com/wp-content/uploads/2010/06/nachetz_02_mi-sono-rotto....-il-gomito-590x380.jpg" alt="nachetz_02_mi sono rotto.... il gomito" width="590" height="380" /></a><br />
<a href="http://www.flickr.com/photos/nachetz/4483975994/sizes/o/" target="_blank"><img class="alignnone size-medium wp-image-1758" title="nachetz_03_microbios12-3565" src="http://complexitys.com/wp-content/uploads/2010/06/nachetz_03_microbios12-3565-533x800.jpg" alt="nachetz_03_microbios12-3565" width="533" height="800" /></a><br />
&#8220;No title&#8221;, &#8220;Mi sono rotto&#8230;. il gomito&#8221; and &#8220;microbios12-3565&#8243;, <a href="http://www.flickr.com/photos/nachetz/" target="_blank">nachetz</a></p>
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		<item>
		<title>Mårten Nettelbladt and geometries of bending</title>
		<link>http://complexitys.com/english/marten-nettelbladt-and-geometries-of-bending/</link>
		<comments>http://complexitys.com/english/marten-nettelbladt-and-geometries-of-bending/#comments</comments>
		<pubDate>Tue, 25 May 2010 15:55:21 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[complexitys culture]]></category>
		<category><![CDATA[constructivity]]></category>
		<category><![CDATA[english]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[#gh3D]]></category>
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		<category><![CDATA[surfaces]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1597</guid>
		<description><![CDATA[
We have already talked about Mårten Nettelbladt as a very interesting researcher on topics of complex geometries, and specifically the topic of developable surfaces.
His website, &#8220;Omkrets arkitektur&#8221;, and his blog The Geometry of Bending should be a reference for all those who are interested in the developability of surfaces, and in general for those who [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://thegeometryofbending.blogspot.com/" target="_blank"><img class="alignnone size-medium wp-image-1654" title="omkrets_banner_762_white12" src="http://complexitys.com/wp-content/uploads/2010/05/omkrets_banner_762_white12-590x232.png" alt="omkrets_banner_762_white12" width="590" height="232" /></a></p>
<p>We have already talked about <a href="http://complexitys.com/geometry/developable-surfaces/" target="_blank">Mårten Nettelbladt</a> as a very interesting researcher on topics of complex geometries, and specifically the topic of developable surfaces.</p>
<p>His website, <a href="http://www.omkrets.se/mnexjobb/english.htm" target="_blank">&#8220;Omkrets arkitektur&#8221;</a>, and his blog <a href="http://thegeometryofbending.blogspot.com/" target="_blank">The Geometry of Bending</a> should be a reference for all those who are interested in the developability of surfaces, and in general for those who are trying to create and construct complex forms.</p>
<p><span id="more-1597"></span>As I am explaining <a href="http://complexitys.com/francais/formtexx-et-ces-nouvelles-facaces-a-double-courbure-terrain-vague-entre-la-technologie-et-la-conception/" target="_blank">here</a> in French, developability is a key concept to understand if you are trying to construct very complex forms that are easy to draw but difficult to build.</p>
<p>As Mårten says: &#8220;I am fascinated by organic shapes and have sought in my        investigations to find forms on the dividing line between  free-form and        the geometric. I have also tried to find a balance between  complexity and        simplicity.&#8221; He also explains in a very simple way the purposes of his <a href="http://thegeometryofbending.blogspot.com/" target="_blank">research blog</a>:  &#8220;When you bend a thin strip of an elastic material you get a beautifully shaped curve. What geometry does this curve follow? Please help unravel this mystery by commenting on these posts!&#8221;</p>
<p><img class="alignnone size-medium wp-image-1655" title="2010-02-19_strauss" src="http://complexitys.com/wp-content/uploads/2010/05/2010-02-19_strauss-590x590.jpg" alt="2010-02-19_strauss" width="590" height="590" /></p>
<p>In a recent article (in French) about <a href="http://complexitys.com/francais/architecture-hybride-110-espaces-sensbiles-et-nouvelle-conception/" target="_blank">&#8220;Hybrid Archtiecture: sentient spaces and new design&#8221;</a> we have been focusing on the complex relationship between the virtual model, the physical model, and the engineering calculation model. I think that developable surfaces are a central topic in these studies, as they are something that we must strongly consider if we want our complex virtual forms to become physical objects.</p>
<p><img class="alignnone size-medium  wp-image-1657" title="3 cones 1b" src="http://complexitys.com/wp-content/uploads/2010/05/3-cones-1b-590x393.jpg" alt="3 cones 1b" width="590" height="393" /></p>
<pre>Image credits: Mårten Nettelbladt</pre>
<p>This is why I think the work of Mårten Nettelbladt is especially relevant, as he&#8217;s always going back and forth between virtual models (using Rhinoceros and Grasshopper) and physical models (paper, plastic, rubber, etc). For example, he has developed an interesting Grasshopper definition to draw developable strips (you can download it <a href="http://www.eat-a-bug.kilu.de/Developable.zip" target="_blank">here</a>).</p>
<p><img class="alignnone size-medium  wp-image-1656" title="A-case5b" src="http://complexitys.com/wp-content/uploads/2010/05/A-case5b-590x393.jpg" alt="A-case5b" width="590" height="393" /></p>
<pre>Image credits: Mårten Nettelbladt</pre>
<p><img class="alignnone size-medium wp-image-1658" title="090307 cones testing2" src="http://complexitys.com/wp-content/uploads/2010/05/090307-cones-testing2-590x368.PNG" alt="090307 cones testing2" width="590" height="368" /></p>
<pre>Image credits: Mårten Nettelbladt</pre>
<p>I find this strong relationship between paper studies (physical) and Grasshopper definitions (virtual) particularly interesting, as it gives evidence that developable forms are not merely abstract results of a virtual modelling, but that they have a strong physical meaning as well, as their forms are the results of forces of nature.</p>
<p>This could perhaps be a subject that we could work on one of our next <a href="http://complexitys.com/software/formationgrasshopper/" target="_blank">Parametric Architecture Workshops.</a></p>
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		<title>Formation Grasshopper / Atelier d’Architecture Paramétrique / #gh3D #Paris</title>
		<link>http://complexitys.com/software/formationgrasshopper/</link>
		<comments>http://complexitys.com/software/formationgrasshopper/#comments</comments>
		<pubDate>Wed, 12 May 2010 12:21:37 +0000</pubDate>
		<dc:creator>admin</dc:creator>
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		<guid isPermaLink="false">http://complexitys.com/?p=1608</guid>
		<description><![CDATA[
Comme nous avions dejà annoncé sur Twitter, nous organisons en collaboration avec Rhinoforyou une formation Grasshopper à Paris incluant un Atelier d&#8217;Architecture Paramétrique. Le stage est prévu pour le 28,29 et 30 juin prochains.
Les 2 premières journées sont consacrées aux « fondamentaux » de Grasshopper avec en préambule une introduction au design et à l’architecture [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.flickr.com/photos/hdaparis/4600638507/sizes/o/" target="_blank"><img class="alignnone size-full wp-image-1626" title="Terna_Grasshopper_web" src="http://complexitys.com/wp-content/uploads/2010/05/Terna_Grasshopper_web1.jpg" alt="Terna_Grasshopper_web" width="590" height="240" /></a></p>
<p>Comme nous avions dejà annoncé sur <a href="http://twitter.com/hda_paris" target="_blank">Twitter</a>, nous organisons en collaboration avec <a href="http://rhinoforyou.com" target="_blank">Rhinoforyou</a> une formation <a href="http://grasshopper3d.com" target="_blank">Grasshopper</a> à Paris incluant un Atelier d&#8217;Architecture Paramétrique. Le stage est prévu pour le 28,29 et 30 juin prochains.</p>
<p>Les 2 premières journées sont consacrées aux « fondamentaux » de Grasshopper avec en préambule une introduction au design et à l’architecture paramétrique et leurs impacts dans la conception, la création et la construction. La troisième journée sous forme d’atelier est dédiée à l’étude de cas concrets proposés par les stagiaires, qui, quelques jours avant la formation, pourront envoyer leurs projets par mail à <a href="mailto:info@rhinoforyou.com?subject=Reservation%20formation%20Grasshopper%20pour%20les%20dates%20du%2028%20juin%20-%2030%20juin%202010." target="_blank">info@rhinoforyou.com.</a></p>
<p><span id="more-1608"></span></p>
<p>D&#8217;après ce que j&#8217;ai pu constater, les formations de design paramétrique et de Grasshopper en France, et en langue française, sont encore assez rares, mais nous allons essayer d&#8217;y remédier&#8230;<br />
Si vous êtes intéressez, <a href="mailto:info@rhinoforyou.com?subject=Reservation%20formation%20Grasshopper%20pour%20les%20dates%20du%2028%20juin%20-%2030%20juin%202010." target="_blank">réserver</a> votre place dès que possible car nous avons décidé de limiter les places à 10 participants maximum.</p>
<p>Pour voir le programme ou pour plus d&#8217;information, consulter le PDF ci-dessous où téléchargez <a class="downloadlink" href="http://complexitys.com/wp-content/plugins/download-monitor/download.php?id=6" title=" downloaded 78 times" >Formation Grasshopper (78)</a></p>
<div><object style="width: 590px; height: 835px;" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="100" height="100" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"><param name="allowfullscreen" value="true" /><param name="menu" value="false" /><param name="src" value="http://static.issuu.com/webembed/viewers/style1/v1/IssuuViewer.swf?mode=embed&amp;viewMode=presentation&amp;layout=http%3A%2F%2Fskin.issuu.com%2Fv%2Flight%2Flayout.xml&amp;showFlipBtn=true&amp;documentId=100512115939-b3e494311be34667a33e8f860a853d9b&amp;docName=grasshopper_onepage&amp;username=hda_paris&amp;loadingInfoText=Formation%20Gr&amp;et=1273666246826&amp;er=41" /><param name="flashvars" value="mode=embed&amp;viewMode=presentation&amp;layout=http%3A%2F%2Fskin.issuu.com%2Fv%2Flight%2Flayout.xml&amp;showFlipBtn=true&amp;documentId=100512115939-b3e494311be34667a33e8f860a853d9b&amp;docName=grasshopper_onepage&amp;username=hda_paris&amp;loadingInfoText=Formation%20Gr&amp;et=1273666246826&amp;er=41" /><embed style="width: 590px; height: 835px;" type="application/x-shockwave-flash" width="100" height="100" src="http://static.issuu.com/webembed/viewers/style1/v1/IssuuViewer.swf?mode=embed&amp;viewMode=presentation&amp;layout=http%3A%2F%2Fskin.issuu.com%2Fv%2Flight%2Flayout.xml&amp;showFlipBtn=true&amp;documentId=100512115939-b3e494311be34667a33e8f860a853d9b&amp;docName=grasshopper_onepage&amp;username=hda_paris&amp;loadingInfoText=Formation%20Gr&amp;et=1273666246826&amp;er=41" flashvars="mode=embed&amp;viewMode=presentation&amp;layout=http%3A%2F%2Fskin.issuu.com%2Fv%2Flight%2Flayout.xml&amp;showFlipBtn=true&amp;documentId=100512115939-b3e494311be34667a33e8f860a853d9b&amp;docName=grasshopper_onepage&amp;username=hda_paris&amp;loadingInfoText=Formation%20Gr&amp;et=1273666246826&amp;er=41" menu="false" allowfullscreen="true"></embed></object><br />
.<br />
Inscriptions et renseignements: Jacques Hababou, <a href="mailto:info@rhinoforyou.com?subject=Reservation%20formation%20Grasshopper%20pour%20les%20dates%20du%2028%20juin%20-%2030%20juin%202010." target="_blank">info@rhinoforyou.com.<br />
.</a><br />
Pour en savoir plus sur l’architecture paramétrique, vous pouvez consulter les supports de présentation de notre dernière conférence <a href="../software/vers-une-architecture-parametrique-supports-de-presentation-definitifs/" target="_blank">&#8220;Vers une Architecture Paramètrique&#8221;</a> à l&#8217;Ecole d&#8217;Architecture de Paris La Villette.</div>
<div>.<br />
L&#8217;image ci-dessus est du projet <a href="http://complexitys.com/english/dancing-with-nature/" target="_blank">Pylons of the Future &#8211; Dancing with Nature -</a> de <a href="http://hdaparis.com" target="_blank"> HDA | Hugh Dutton Associés.</a> La conception et la réalisation du projet sont développés avec Grasshopper et d&#8217;autre logiciel de dessin et calcul de structure paramétriques.</div>
<div>Vous pouvez voir l&#8217;image à taille réelle sur <a href="http://www.flickr.com/photos/hdaparis/4600638507/" target="_blank">Flickr</a>.</div>
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		<title>johann le guillerm: la motte</title>
		<link>http://complexitys.com/we-like/johann-le-guillerm-la-motte/</link>
		<comments>http://complexitys.com/we-like/johann-le-guillerm-la-motte/#comments</comments>
		<pubDate>Tue, 13 Apr 2010 14:19:10 +0000</pubDate>
		<dc:creator>G. k.</dc:creator>
				<category><![CDATA[Engineering]]></category>
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		<guid isPermaLink="false">http://complexitys.com/?p=1405</guid>
		<description><![CDATA[Depuis 2001, johann Le Guillerm tourne autour du point, cet élément minimal originel qu&#8217;il a mis en volume et en mouvement pour en faire le touret, à sa maniere, theoriser au sens grec (observer) rien moins que la globalité du monde.



Au long de cheminements labyrinthiques, avec les formes de classement que la science utilise, il [...]]]></description>
			<content:encoded><![CDATA[<p>Depuis 2001, johann Le Guillerm tourne autour du point, cet élément minimal originel qu&#8217;il a mis en volume et en mouvement pour en faire le touret, à sa maniere, theoriser au sens grec (observer) rien moins que la globalité du monde.</p>
<p style="text-align: center;"><a href="http://complexitys.com/wp-content/uploads/2010/04/27201_335884118701_169632603701_3596072_2872983_n.jpg.jpeg"><img class="alignnone size-full wp-image-1415" title="27201_335884118701_169632603701_3596072_2872983_n.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/27201_335884118701_169632603701_3596072_2872983_n.jpg.jpeg" alt="27201_335884118701_169632603701_3596072_2872983_n.jpg" width="303" height="448" /></a></p>
<p style="text-align: left;">
<p><span id="more-1405"></span></p>
<p>Au long de cheminements labyrinthiques, avec les formes de classement que la science utilise, il deploie ses connaissances, nées d&#8217;experiences intuitives qui mettent à mal nos consciences cartesiennes. Car peu lui importe la verité des hypotheses, ce qui compte, c&#8217;est qu&#8217;elles operent sur le desordre du monde pour deceler d&#8217;autres agencements, un nouvel ordre, poetique celui là. L&#8217;artiste affirme &#8221; je tente d&#8217;etablir un ordre dans le chaos du monde, d&#8217;ordonner le paysage, cela m&#8217;aide à visualiser l&#8217;espace, même si je sais que ce paysage est faux&#8221;.</p>
<p style="text-align: justify; ">Dans ces chantiers, en piste ou en laboratoire, il entend montrer le cheminement des surfaces, des spheres&#8230; pour cela il experimente, traque ce qui fait raisonnement, crée ses propres &#8220;outils&#8221; et selon une logique toute personnelle, les façonne à sa cause pour en montrer d&#8217;inédites propriétées.</p>
<p style="text-align: justify; "><em>Anne Quentin journaliste et auteur</em></p>
<p>Voici le lien du mode d&#8217;emploi sur l&#8217;expo <a href="http://www.clubcreacc-idf.fr/attachment/191976/">attraction: mode d&#8217;emploi.</a></p>
<p>En deux ans, il a approfondi sa connaissance dans le sens d’une théorisation progressive de sa pratique.<br />
Sa recherche procède de l&#8217;entrelacs de trois questions :</p>
<ul>
<li>Quand y a-t-il équilibre ?</li>
<li>Quand y a-t-il métamorphose ?</li>
<li>Comment la notion de point de vue perturbe-t-elle les notions d&#8217;équilibre et de forme ?</li>
</ul>
<p>Son approche sensible de ces trois questions a pour but de s&#8217;approprier un savoir externe à l&#8217;art pour le traduire artistiquement.</p>
<p>Voici plusieurs oeuvres qui parle de geometrie:</p>
<p style="text-align: center; "><a href="http://complexitys.com/wp-content/uploads/2010/04/23617_310612813701_169632603701_3506722_4975107_n.jpg.jpeg"><img class="size-full wp-image-1417 aligncenter" title="23617_310612813701_169632603701_3506722_4975107_n.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/23617_310612813701_169632603701_3506722_4975107_n.jpg.jpeg" alt="23617_310612813701_169632603701_3506722_4975107_n.jpg" width="287" height="448" /></a></p>
<p style="text-align: center; "><a href="http://complexitys.com/wp-content/uploads/2010/04/23617_310612813701_169632603701_3506722_4975107_n.jpg.jpeg"></a><a href="http://complexitys.com/wp-content/uploads/2010/04/24154_326387058701_169632603701_3564736_7846605_n.jpg.jpeg"><img class="size-full wp-image-1444 aligncenter" title="24154_326387058701_169632603701_3564736_7846605_n.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/24154_326387058701_169632603701_3564736_7846605_n.jpg.jpeg" alt="24154_326387058701_169632603701_3564736_7846605_n.jpg" width="448" height="301" /></a></p>
<p style="text-align: center; "><a href="http://complexitys.com/wp-content/uploads/2010/04/27201_335885378701_169632603701_3596078_1354700_n.jpg.jpeg"><img class="alignnone size-full wp-image-1445" title="27201_335885378701_169632603701_3596078_1354700_n.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/27201_335885378701_169632603701_3596078_1354700_n.jpg.jpeg" alt="27201_335885378701_169632603701_3596078_1354700_n.jpg" width="448" height="299" /></a></p>
<p>j&#8217; ai decidé de vous parler de l&#8217;oeuvre qui m&#8217;a le plus marqué autant d&#8217;un point de vue phénoménologie que  des moyens formels et technologiques.</p>
<p>L&#8217;un des enjeux d’ATTRACTION est dans le dépassement de deux frontières. Celle qui oppose art et science et celle qui sépare le sensible et le rationnel. Un désir de connaissance et de poétisation du monde.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/La-Motte-prototype_1.jpg.jpeg"><img class="alignnone size-full wp-image-1418" title="La Motte-prototype_1.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/La-Motte-prototype_1.jpg.jpeg" alt="La Motte-prototype_1.jpg" width="567" height="387" /></a></p>
<p style="text-align: justify; "><strong>La Motte est issue de la famille des Circumambulatoires.</strong></p>
<p style="text-align: justify; ">Les Circumambulatoires sont des circuits évolutifs autour d’un noyau, sorte de mouvement chaotique en perpétuelle mutation.<br />
Leurs formations se réalisent à partir de deux volumes sphériques identiques, l’un chaud, l’autre froid .<br />
Ils s’attirent, se rencontrent et se découvrent. Ils se découvrent par contact en parcourant la totalité de leur surface jusqu’à revenir à leur point de rencontre. Ils créent ainsi une boucle qui devient mémoire de circulation. La répétition de cette mémoire de chemin les façonne et les déforme. Ils prennent alors l’aspect d’engrenages lisses complémentaires.<br />
A force de répétitions, la masse chaude se refroidie et la masse froide se réchauffe, l’une devient concave et l’autre convexe.<br />
<a href="http://complexitys.com/wp-content/uploads/2010/04/boyau-arete.bmp"><img class="alignnone size-full wp-image-1423" title="boyau arete" src="http://complexitys.com/wp-content/uploads/2010/04/boyau-arete.bmp" alt="boyau arete" /></a></p>
<p>Les mutations de la famille des circumambulatoires sont provoquées par l’intervention de virus sur les arêtes. (virus : scission, division, courbure, jonction, excroissance, etc&#8230; de la ligne).<br />
<a href="http://complexitys.com/wp-content/uploads/2010/04/G-E-O-M-E-T-R-I-E.bmp"><img class="size-full wp-image-1427 alignleft" title="G E O M E T R I E" src="http://complexitys.com/wp-content/uploads/2010/04/G-E-O-M-E-T-R-I-E.bmp" alt="G E O M E T R I E" width="200" height="150" /></a></p>
<p style="text-align: justify;"><strong>GEOMETRIE</strong></p>
<p style="text-align: justify;">Repérage du positionnement des arêtes et du boyau sur une sphère.</p>
<p style="text-align: justify;">.</p>
<p style="text-align: justify;">.</p>
<p style="text-align: justify;">.</p>
<p style="text-align: justify;"><a href="http://complexitys.com/wp-content/uploads/2010/04/FA-M-I-L-L-E-D-E-S-C-I-R-C-U-M-A-M-B-U-L-ATO-I-R-E-S.bmp"><img class="size-full wp-image-1429 alignleft" title="FA M I L L E D E S C I R C U M A M B U L ATO I R E S" src="http://complexitys.com/wp-content/uploads/2010/04/FA-M-I-L-L-E-D-E-S-C-I-R-C-U-M-A-M-B-U-L-ATO-I-R-E-S.bmp" alt="FA M I L L E D E S C I R C U M A M B U L ATO I R E S" width="203" height="149" /></a></p>
<p style="text-align: justify;"><strong>FAMILLE  DES  CIRCUMAMBULATOIRES</strong></p>
<p style="text-align: justify;">Sculptures des formes. C’est une des manières les plus simples de faire le tour d’un ensemble.<br />
Chaque graphe symbolise un déployé des arêtes (frontière des circulations) sur un plan 2D. Ils sont utilisés comme repères graphiques identitaires. Le plan de mutation des virus est aussi une nomenclature qui les situe dans un réseau de mutation.</p>
<p style="text-align: justify;">.</p>
<p style="text-align: justify;"><a href="http://complexitys.com/wp-content/uploads/2010/04/P-L-A-N-D-E-M-U-TAT-I-O-N-D-E-S-V-I-R-U-S.bmp"><img class="size-full wp-image-1432 alignleft" title="P L A N D E M U TAT I O N D E S V I R U S" src="http://complexitys.com/wp-content/uploads/2010/04/P-L-A-N-D-E-M-U-TAT-I-O-N-D-E-S-V-I-R-U-S.bmp" alt="P L A N D E M U TAT I O N D E S V I R U S" width="324" height="217" /></a><strong>PLAN  DE MUTATION  DES  VIRUS</strong><br />
Chaque graphe symbolise un déployé des arêtes (frontière des circulations) sur un plan 2D. Ils<br />
sont utilisés comme repères graphiques identitaires. Le plan de mutation des virus est aussi une<br />
nomenclature qui les situe dans un réseau de mutation.</p>
<p style="text-align: justify;">.</p>
<p>.</p>
<p>.</p>
<p>.<br />
<img class="alignleft" src="http://complexitys.com/wp-content/uploads/2010/04/C-H-E-M-I-N-S-D-E-C-I-R-C-U-M-A-M-B-U-L-ATO-I-R-E-S.bmp" alt="" width="201" height="145" /></p>
<p><strong>CHEMINS  DE CIRCUMAMBULATOIRES</strong></p>
<p style="text-align: justify;">Si l’on fait rouler une circumambulatoire sur un plan en 2D, on obtient un cheminement dessiné par ses arêtes qui correspond à l’occupation du labyrinthe sur une sphère. Ce cheminement est continu puisque le labyrinthe est cyclique. Chaque chemin, ci-contre, est celui du centre de gravité se situant au milieu de ceux dessinés par les arêtes. Chaque chemin, ci-contre, est celui du centre de gravité se situant au milieu de ceux dessinés par les arêtes.<br />
Chaque étape de mutation peut être soumise à une variation de cheminement induite par la dimension et le positionnement des arêtes sur le volume.<br />
Trois des quatre formes sont issues du même type de labyrinthe (identité) ce n’est que l’agencement de leurs arêtes qui fait varier leur forme et leur cheminement.<br />
La quatrième (Motte boyau) ne peut avoir qu’une exploitation partielle de la forme, sur l’une ou l’autre de ses faces, ces empreintes sont les frontières du labyrinthe et font apparaître les caractéristiques de l’identité graphique que l’on retrouve sur le plan de mutation.</p>
<p style="text-align: justify;"><strong>PROTOCOLE DE CONSTRUCTION DE LA MOTTE:</strong></p>
<p style="text-align: justify;">Construction d’un circuit évolutif occupant un territoire sphérique par un chemin d‘une largeur constante<br />
avec un recouvrement optimal,constitué de cônes de roulement tangent à une sphère (stabilité du centre de<br />
gravité) dont la trajectoire décrit un motif giratoire ternaire constitué de trois volutes.<br />
<span style="text-decoration: underline;"> MODÉLISATION NUMÉRIQUE DE LA FORME:</span><br />
- Principe:</p>
<ul style="text-align: justify;">
<li>Obtenir une forme idéale dont le centre de gravité reste dans un plan parallèle au sol (pas de variation d’altitude) et qui en 3 rotations, revient à son point de départ.</li>
<li>Tenir compte des contraintes esthétiques.</li>
</ul>
<p style="text-align: justify;"><span style="text-decoration: underline;"> ÉTUDE DE LA CONCEPTION DE LA STRUCTURE</span><br />
- Principe :</p>
<ul style="text-align: justify;">
<li>Concevoir une forme tournant sur elle même et pouvant être en rotation pendant 6 mois Etudes du choix des matériaux, procédés d’obtention des formes de la sculpture, étude des contraintes mécaniques et résistances des matériaux&#8230;</li>
<li>Du système d’immobilisation de la Motte</li>
<li>De la nature de la piste sur laquelle tournera la Motte</li>
<li>Des contraintes extérieures (intempéries, lieu d’exposition&#8230;.)</li>
<li>Du plan de construction de la Motte (Montage et démontage, transport)</li>
<li>De la sécurité de l’accueil du public.</li>
</ul>
<p style="text-align: center;"><a href="http://complexitys.com/wp-content/uploads/2010/04/Première-phase-d’étude-de-la-structure.bmp"><img class="size-full wp-image-1446 aligncenter" title="Première phase d’étude de la structure" src="http://complexitys.com/wp-content/uploads/2010/04/Première-phase-d’étude-de-la-structure.bmp" alt="Première phase d’étude de la structure" /></a></p>
<p style="text-align: justify;"><a href="http://complexitys.com/wp-content/uploads/2010/04/Première-phase-d’étude-de-la-structure.bmp"></a>Première phase d’étude de la structure</p>
<p style="text-align: center;"><a href="http://complexitys.com/wp-content/uploads/2010/04/structure.bmp"><img class="size-full wp-image-1441 aligncenter" title="structure" src="http://complexitys.com/wp-content/uploads/2010/04/structure.bmp" alt="structure" /></a></p>
<p style="text-align: justify;"><span style="text-decoration: underline;">ÉTUDE SUR LA CONCEPTION ET RÉALISATION DU MANTEAU VÉGÉTAL</span><br />
Principe:</p>
<ul style="text-align: justify;">
<li>Concevoir un tapis végétal permettant la croissance des plantes pendant une période de 6 mois minimum, tenant compte de l’érosion due à la rotation, de l’arrosage et des apports nutritifs</li>
</ul>
<p style="text-align: justify;">Etudes:</p>
<ul style="text-align: justify;">
<li>Conception de coques positionnables sur la Motte ou coque intégrée à la structure (choix à faire) en tenant compte des contraintes de poids, de résistance aux efforts due à la rotation.</li>
<li>Sélection des végétaux et suivi horticole</li>
</ul>
<p style="text-align: justify;"><span style="text-decoration: underline;">SYSTÈME DE MOTORISATION</span><br />
Principe:</p>
<ul style="text-align: justify;">
<li>la Motte doit avancer selon sa trajectoire, de manière lente et le moins chaotique possible, à la vitesse de 1 à 5 m/mn</li>
</ul>
<p style="text-align: justify;">Etudes:</p>
<ul style="text-align: justify;">
<li>Système de motorisation par transfert de masse : soit avec un “petit train”, soit tout autre système</li>
<li>(électromagnétique …)</li>
<li>robotisation du mécanisme (système piloté par ordinateur)</li>
</ul>
<address style="text-align: center;"><a href="http://complexitys.com/wp-content/uploads/2010/04/hydraulique.jpg"><img class="alignnone size-full wp-image-1440" title="hydraulique" src="http://complexitys.com/wp-content/uploads/2010/04/hydraulique.jpg" alt="hydraulique" width="459" height="310" /></a></address>
<address style="text-align: justify;">Aujourd&#8217;hui la motte est un prototype  de 2 m50 de diamaitre et avance grace à un systeme de pompe Motorisation hydraulique avec un système de réservoir</address>
<p style="text-align: justify;"><span style="text-decoration: underline;">SOURCES D’ÉNERGIE POSSIBLE</span></p>
<ul style="text-align: justify;">
<li>Principe: la Motte doit avoir une autonomie de 20H minimum</li>
<li>Etude: choix du mode de stockage (accumulateurs, piles à combustible&#8230;)</li>
</ul>
<p style="text-align: justify;"><a href="http://www.diderot.org/download.do?fileId=358">http://www.diderot.org/download.do?fileId=358</a></p>
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		<title>Flashmob</title>
		<link>http://complexitys.com/we-like/flashmob/</link>
		<comments>http://complexitys.com/we-like/flashmob/#comments</comments>
		<pubDate>Mon, 12 Apr 2010 10:00:29 +0000</pubDate>
		<dc:creator>G. k.</dc:creator>
				<category><![CDATA[design]]></category>
		<category><![CDATA[english]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[we like]]></category>
		<category><![CDATA[lamp]]></category>
		<category><![CDATA[lighting]]></category>
		<category><![CDATA[superuse]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1385</guid>
		<description><![CDATA[

Studio Henny van Nistelrooy has designed a captivating chandelier made of light reflecting discs that conventionally are used in photography. Henny has been exploring the characteristics of these visually appealing collapsible discs to create three-dimensional forms. “These discs work like a spring mechanism and I have fixed its outward force in different shapes by bonding the [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://complexitys.com/wp-content/uploads/2010/04/fla02.jpg.jpeg"><img class="size-full wp-image-1386 alignnone" title="fla02.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/fla02.jpg.jpeg" alt="fla02.jpg" width="414" height="550" /></p>
<p><span id="more-1385"></span></a><img class="size-medium wp-image-1387 alignnone" title="fla01.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/fla01.jpg-590x443.jpg" alt="fla01.jpg" width="590" height="443" /><a href="http://complexitys.com/wp-content/uploads/2010/04/fla03.jpg.jpeg"><img class="size-full wp-image-1388 alignnone" title="fla03.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/fla03.jpg.jpeg" alt="fla03.jpg" width="414" height="550" /></a><a href="http://complexitys.com/wp-content/uploads/2010/04/fla04.jpg.jpeg"><img class="size-full wp-image-1389 alignnone" title="fla04.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/fla04.jpg.jpeg" alt="fla04.jpg" width="550" height="731" /></a></p>
<p style="text-align: justify;">Studio Henny van Nistelrooy has designed a captivating chandelier made of light reflecting discs that conventionally are used in photography. Henny has been exploring the characteristics of these visually appealing collapsible discs to create three-dimensional forms. “These discs work like a spring mechanism and I have fixed its outward force in different shapes by bonding the fabric on specific points to the spring steel ring”. The process initiated by making different shapes within the transition from the folded flexible ring to flattened out. This exciting form study is concluded in one shape that makes a perfect building element to create a sphere. The configuration of twelve of these elements makes the giant eye-catching chandelier.</p>
<p>Materials:</p>
<ul>
<li>Light reflective fabric</li>
<li>Spring steel</li>
<li>Acryllic</li>
<li>lamp</li>
</ul>
<p><strong>Flashmob:</strong></p>
<p>by: <a href="www.hennyvannistelrooy.com/">www.hennyvannistelrooy.com/</a><br />
from: <a href="www.superuse.org">www.superuse.org</a></p>
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		<title>Equilibrium y’all !!</title>
		<link>http://complexitys.com/english/equilibrium-y%e2%80%99all/</link>
		<comments>http://complexitys.com/english/equilibrium-y%e2%80%99all/#comments</comments>
		<pubDate>Fri, 09 Apr 2010 09:59:24 +0000</pubDate>
		<dc:creator>G. k.</dc:creator>
				<category><![CDATA[complexitys culture]]></category>
		<category><![CDATA[constructivity]]></category>
		<category><![CDATA[english]]></category>
		<category><![CDATA[geometry]]></category>
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		<category><![CDATA[architecture]]></category>
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		<category><![CDATA[structure]]></category>

		<guid isPermaLink="false">http://complexitys.com/?p=1367</guid>
		<description><![CDATA[This article presents a new methodology for generating compression-only vaulted surfaces and networks. The method finds possible funicular solutions under gravitational loading within a defined envelope. Using projective geometry, duality theory and linear optimization, it provides a graphical and intuitive method, adopting the same advantages of techniques such as graphic statics, but offering a viable extension to fully three-dimensional [...]]]></description>
			<content:encoded><![CDATA[<p>This article presents a new methodology for generating compression-only vaulted surfaces and networks. The method finds possible funicular solutions under gravitational loading within a defined envelope. Using projective geometry, duality theory and linear optimization, it provides a graphical and intuitive method, adopting the same advantages of techniques such as graphic statics, but offering a viable extension to fully three-dimensional problems. The proposed method is applicable for the analysis of vaulted historical structures, specifically in unreinforced masonry, as well as the design of new vaulted structures. This paper introduces the method and shows examples of applications in both fields.</p>
<pre><a href="http://complexitys.com/wp-content/uploads/2010/04/overview_masonry_01R.jpg.jpeg"><img class="alignnone size-full wp-image-1369" title="overview_masonry_01R.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/overview_masonry_01R.jpg.jpeg" alt="overview_masonry_01R.jpg" width="480" height="528" /></a></pre>
<address>Keywords: compression-only structures, unreinforced masonry vaults, funicular analysis, Thrust Network Analysis, reciprocal diagrams, form-finding, lower-bound analysis, structural optimization.</address>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/overview_masonry_01R.jpg.jpeg"></a><strong><span style="text-decoration: underline;">1. INTRODUCTION</span></strong></p>
<p style="text-align: justify; ">Medieval vault builders created complex forms carefully balanced in compression. The structural properties of these sophisticated forms are still poorly understood because of a lack of appropriate analysis methods, i.e. methods relating stability and form. Understanding the mechanics of these vaulted structures leads to new insights for both analysis and design.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/01.jpg"><img class="alignnone size-medium wp-image-1370" title="01" src="http://complexitys.com/wp-content/uploads/2010/04/01-590x128.jpg" alt="01" width="590" height="128" /></a><span id="more-1367"></span></p>
<p style="text-align: justify; ">Thrust Line Analysis is a powerful graphical method for calculating the range of lower-bound equilibrium solutions of compression-only systems, such as unreinforced masonry structures (Fig. 1).</p>
<p style="text-align: justify; "><img src="http://complexitys.com/wp-content/uploads/2010/04/2010-04-08_1127-590x243.png" alt="" /></p>
<address>Figure 1. (a) Two possible compression-only equilibrium shapes for a random set of loads, and (b) an interactive thrust-line application developed in [1]: the user can adapt the geometry by dragging control points and the structural feedback, in the form of a thrust-line, is updated in real-time. The magnitudes of the forces in the system are visualized in the accompanying funicular polygon (right).</address>
<p style="text-align: justify; ">It visualizes the stability of these structures and suggests possible collapse mechanisms. Unfortunately, thrust line analysis is primarily suitable for 2-D cases and this limitation has prevented it from being used for the assessment of complex 3-D structures. While numerical methods based on elastic solutions give one possible answer,they no longer suggest better form as was inherentto the more holistic graphical methods There is a real need for tools to better understand and visualize the stability of compression-only structures, such as historic unreinforced masonry structures, as well as design tools that suggest better form. Both problems are related to finding axial force structures in equilibrium acting only in compression or tension. Currently, graphic statics provides a holistic analysis and design tool for twodimensional structures. With today’s availability of powerful virtual 3-D and parametric environments, the following question arises: can a fully threedimensional version of thrust-line analysis provide the same freedom to explore the infinite equilibrium solutions for a certain loading condition?</p>
<p style="text-align: justify; "><strong><span style="text-decoration: underline;">2. METHODOLOGY</span></strong><br />
The Thrust-Network Analysis method presented in this paper is inspired by O’Dwyer’s work on funicular analysis of vaulted masonry structures. It is extended by adding the concept of duality between geometry and the in-plane internal forces of networks.</p>
<p style="text-align: justify; padding-left: 30px;"><span style="text-decoration: underline;">2.1. Reciprocal figures</span><br />
The duality between the geometry of a network and its internal forces is an old concept, first explained<br />
by Maxwell [4]. He called this relationship reciprocal and defined it as follows: “Two plane figures are reciprocal when they consist of an equal number of lines, so that corresponding lines in the two figures are parallel, and corresponding lines which converge to a point in one figure form a closed polygon in the other.” This means that the equilibrium of a node in the first diagram is represented by a closed polygon in the second diagram and vice versa (Fig. 2). Graphic statics is based on this principle.</p>
<p style="text-align: justify; padding-left: 30px;"><a href="http://complexitys.com/wp-content/uploads/2010/04/2010-04-08_1231-copie.jpg"><img class="alignnone size-medium wp-image-1379" title="2010-04-08_1231 copie" src="http://complexitys.com/wp-content/uploads/2010/04/2010-04-08_1231-copie-590x322.jpg" alt="2010-04-08_1231 copie" width="590" height="322" /></a></p>
<p style="text-align: justify; padding-left: 30px;">
<address style="padding-left: 30px;">Figure 2. The primal grid  and dual grid * are related by a reciprocal relationship. The equilibrium of a node in<br />
one of them is guaranteed by a closed polygon in the other and vice versa.</address>
<p style="text-align: justify; padding-left: 30px;"><span style="text-decoration: underline;">2.2. Assumptions</span><br />
The proposed method produces funicular (compression-only) solutions for loading conditions where all loads are applied in the same direction, as is the case for gravitational loading. Since the solutions are compression-only this also means that the vaults can never curl back onto themselves, which would demand some elements to go into tension. The resulting three-dimensional networks can represent load paths throughout a structure. There is no constraint on the length of the branches or the planarity of the facets of the solution.</p>
<p style="text-align: justify; ">This images present a exemple for the design, engineering, fabrication and construction of an unreinforced stone masonry vault featuring new forms for compression-only structures.</p>
<p style="text-align: justify; "><a href="http://complexitys.com/wp-content/uploads/2010/04/cut-sketches-02.jpg.jpeg"><img class="alignnone size-medium wp-image-1372" title="cut-sketches-02.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/cut-sketches-02.jpg-590x184.jpg" alt="cut-sketches-02.jpg" width="590" height="184" /></a></p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/dscn3986.jpg.jpeg"><img class="alignnone size-medium wp-image-1373" title="dscn3986.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/dscn3986.jpg-590x442.jpg" alt="dscn3986.jpg" width="590" height="442" /></a></p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/dscn4191.jpg.jpeg"><img class="alignnone size-medium wp-image-1374" title="dscn4191.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/dscn4191.jpg-590x442.jpg" alt="dscn4191.jpg" width="590" height="442" /></a><br />
The project is a collaboration between Escobedo Construction and Prof. John Ochsendorf and Philippe Block from MIT. By combining the MIT team’s expertise in three-dimensional equilibrium of complex structures in unreinforced masonry and Escobedo Construction’s expertise in design and construction of stone buildings, we expect to produce a state-of-the-art pavilion.<br />
The vault is being designed using Thrust Network Analysis, a new computational tool developed at MIT for exploring three-dimensional equilibrium structures.</p>
<p>sources: <a href="http://equilibriumstone.wordpress.com/">http://equilibriumstone.wordpress.com/</a><br />
<a href="http://web.mit.edu/masonry/papers/Block_PhD_2009.pdf"> Block’s PhD dissertation</a><br />
Click <a style="color: #2277dd; text-decoration: none; padding: 0px; margin: 0px;" href="http://web.mit.edu/masonry/thrustNetwork/SAHC08_ppt_block-ochsendorf.pdf" target="_blank">here</a> for a presentation with a range of examples and more details on the application of TNA for the analysis of vaulted structures in masonry.</p>
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		<title>developable surfaces</title>
		<link>http://complexitys.com/geometry/developable-surfaces/</link>
		<comments>http://complexitys.com/geometry/developable-surfaces/#comments</comments>
		<pubDate>Thu, 08 Apr 2010 10:00:37 +0000</pubDate>
		<dc:creator>G. k.</dc:creator>
				<category><![CDATA[Engineering]]></category>
		<category><![CDATA[constructivity]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[3D]]></category>
		<category><![CDATA[culture]]></category>
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		<guid isPermaLink="false">http://complexitys.com/?p=1335</guid>
		<description><![CDATA[/// This article is extracted from Mårten Nettelbladt&#8217;s works. Have a look to his reasearch blogs, here and here ///
DEFINITION. Forms are called &#8216;developable&#8217; or &#8217;single curved&#8217; when they can be created through ordinary bending of a planar surface without stretching, cutting or wrinkling the material. These surfaces are characterized by only bending in one [...]]]></description>
			<content:encoded><![CDATA[<p>/// This article is extracted from Mårten Nettelbladt&#8217;s works. Have a look to his reasearch blogs, <a href="http://thegeometryofbending.blogspot.com/">here</a> and <a href="http://thegeometryofbending.blogspot.com/">here</a> ///</p>
<p><strong><span style="text-decoration: underline;">DEFINITION</span></strong>. Forms are called &#8216;developable&#8217; or &#8217;single curved&#8217; when they can be created through ordinary bending of a planar surface without stretching, cutting or wrinkling the material. These surfaces are characterized by only bending in one direction at a time, like the cylinder or the cone. Developable surfaces are useful because they allow round forms to be made out of flat materials like plywood, sheet metal or cloth. This is why they are used for ship building, tent sewing and fabrication of ventilation ducts etc.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/e14.jpg.jpeg"><img class="alignnone size-full wp-image-1344" title="e14.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/e14.jpg.jpeg" alt="e14.jpg" width="420" height="420" /></a><span id="more-1335"></span></p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/e14.jpg.jpeg"></a><strong><span style="text-decoration: underline;">DOUBLE CURVED</span></strong>. Surfaces that bend in two directions at the same time and cannot be made out of a flat material are called &#8216;double curved&#8217;. The sphere and the saddle are examples of such surfaces (no double curved surfaces are developable). &#8216;Ruled surfaces&#8217; are constructed from straight lines and are either developable or double curved. Because they appear to be straight in one &#8216;direction&#8217; they can be mistaken for developable surfaces when they are in fact double curved.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/e24.jpg.jpeg"><img class="alignnone size-full wp-image-1345" title="e24.jpg" src="http://complexitys.com/wp-content/uploads/2010/04/e24.jpg.jpeg" alt="e24.jpg" width="420" height="420" /></a></p>
<p><strong>TYPES. four types of developable surfaces:</strong></p>
<p>1. <strong>Cylindrically developable</strong>. A curve extruded straight, creating a surface with a constant section. If the curve is a circle, the surface will be a cylinder.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-1.jpg"><img class="alignnone size-full wp-image-1346" title="Sans titre-1" src="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-1.jpg" alt="Sans titre-1" width="420" height="166" /></a></p>
<p>2. <strong>Conically developable</strong>. A curve extruded towards a focal point results in a surface with a section varying in size. A circle shaped curve produces a cone.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-2.jpg"><img class="alignnone size-full wp-image-1347" title="Sans titre-2" src="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-2.jpg" alt="Sans titre-2" width="420" height="166" /></a></p>
<p>3. <strong>Poly-conically developable</strong>. Surfaces of the two first categories joined together create a composite surface consisting of conical (and cylindrical) segments.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-4.jpg"><img class="alignnone size-full wp-image-1348" title="Sans titre-4" src="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-4.jpg" alt="Sans titre-4" width="420" height="166" /></a></p>
<p>4. <strong>Super-poly-conically developable</strong>. If a poly-conic surface (type 3) changes focal point momentarily, the resulting surface curves in a smoother way and can no longer be divided into segments.</p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-3.jpg"><img class="alignnone size-full wp-image-1349" title="Sans titre-3" src="http://complexitys.com/wp-content/uploads/2010/04/Sans-titre-3.jpg" alt="Sans titre-3" width="420" height="166" /></a></p>
<p>from: <a href="http://www.omkrets.se/">http://www.omkrets.se/</a></p>
<p><a href="http://complexitys.com/wp-content/uploads/2010/04/Bollar-hela-raden-3-9.png.png"><img class="alignnone size-medium wp-image-1352" title="Bollar-hela-raden-3-9.png" src="http://complexitys.com/wp-content/uploads/2010/04/Bollar-hela-raden-3-9.png-590x109.png" alt="Bollar-hela-raden-3-9.png" width="590" height="109" /></a></p>
<p><a href="http://thegeometryofbending.blogspot.com/">http://thegeometryofbending.blogspot.com/</a> (I&#8217;m looking at the type of bending that is elastic (not plastic), meaning the material will spring back to its original shape when the force is released. Most materials break or deform permanently before they can reach an &#8216;elastic and beautiful curve&#8217;, but I think all &#8216;elastic deformation&#8217; follow the same principals and therefore the same geometry.</p>
<p>/// This article is extracted from Mårten Nettelbladt&#8217;s works. Have a  look to his reasearch blogs, <a href="http://thegeometryofbending.blogspot.com/">here</a> and <a href="http://thegeometryofbending.blogspot.com/">here</a> ///</p>
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