Structure and appearance optimization for controllable shape design
Identifieur interne : 000253 ( Main/Exploration ); précédent : 000252; suivant : 000254Structure and appearance optimization for controllable shape design
Auteurs : Jonàs Martínez [France] ; Jérémie Dumas [France] ; Sylvain Lefebvre [France] ; Li-Yi Wei [Hong Kong]Source :
- ACM Transactions on Graphics [ 0730-0301 ] ; 2015-11.
English descriptors
Abstract
The field of topology optimization seeks to optimize shapes under structural objectives, such as achieving the most rigid shape using a given quantity of material. Besides optimal shape design, these methods are increasingly popular as design tools, since they automatically produce structures having desirable physical properties, a task hard to perform by hand even for skilled designers. However, there is no simple way to control the appearance of the generated objects.In this paper, we propose to optimize shapes for both their structural properties and their appearance, the latter being controlled by a user-provided pattern example. These two objectives are challenging to combine, as optimal structural properties fully define the shape, leaving no degrees of freedom for appearance. We propose a new formulation where appearance is optimized as an objective while structural properties serve as constraints. This produces shapes with sufficient rigidity while allowing enough freedom for the appearance of the final structure to resemble the input exemplar. Our approach generates rigid shapes using a specified quantity of material while observing optional constraints such as voids, fills, attachment points, and external forces. The appearance is defined by examples, making our technique accessible to casual users. We demonstrate its use in the context of fabrication using a laser cutter to manufacture real objects from optimized shapes.
Url:
DOI: 10.1145/2816795.2818101
Affiliations:
Links toward previous steps (curation, corpus...)
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Le document en format XML
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<desc><address><addrLine>Campus Scientifique BP 239 54506 Vandoeuvre-lès-Nancy Cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.loria.fr</ref>
</desc>
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<relation active="#struct-413289" type="direct"></relation>
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<idno type="IdUnivLorraine">[UL]100--</idno>
<orgName>Université de Lorraine</orgName>
<orgName type="acronym">UL</orgName>
<date type="start">2012-01-01</date>
<desc><address><addrLine>34 cours Léopold - CS 25233 - 54052 Nancy cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-lorraine.fr/</ref>
</desc>
</org>
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<idno type="IdRef">02636817X</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
<desc><address><country key="FR"></country>
</address>
<ref type="url">http://www.cnrs.fr/</ref>
</desc>
</org>
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</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Nancy</settlement>
<settlement type="city">Metz</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Lorraine (région)</region>
</placeName>
<orgName type="university">Université de Lorraine</orgName>
</affiliation>
</author>
<author><name sortKey="Wei, Li Yi" sort="Wei, Li Yi" uniqKey="Wei L" first="Li-Yi" last="Wei">Li-Yi Wei</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-93487" status="VALID"><orgName>The University of Hong Kong</orgName>
<orgName type="acronym">HKU</orgName>
<desc><address><addrLine>Pokfulam, Hong Kong</addrLine>
<country key="HK"></country>
</address>
<ref type="url">http://www.hku.hk/</ref>
</desc>
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<tutelles><tutelle active="#struct-301845" type="direct"><org type="institution" xml:id="struct-301845" status="VALID"><orgName>University of Hong Kong</orgName>
<desc><address><country key="HK"></country>
</address>
</desc>
</org>
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</hal:affiliation>
<country>Hong Kong</country>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.1145/2816795.2818101</idno>
<series><title level="j">ACM Transactions on Graphics</title>
<idno type="ISSN">0730-0301</idno>
<imprint><date type="datePub">2015-11</date>
</imprint>
</series>
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</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>manufacturing</term>
<term>modeling</term>
<term>texture synthesis</term>
<term>topology optimization</term>
</keywords>
</textClass>
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</teiHeader>
<front><div type="abstract" xml:lang="en">The field of topology optimization seeks to optimize shapes under structural objectives, such as achieving the most rigid shape using a given quantity of material. Besides optimal shape design, these methods are increasingly popular as design tools, since they automatically produce structures having desirable physical properties, a task hard to perform by hand even for skilled designers. However, there is no simple way to control the appearance of the generated objects.In this paper, we propose to optimize shapes for both their structural properties and their appearance, the latter being controlled by a user-provided pattern example. These two objectives are challenging to combine, as optimal structural properties fully define the shape, leaving no degrees of freedom for appearance. We propose a new formulation where appearance is optimized as an objective while structural properties serve as constraints. This produces shapes with sufficient rigidity while allowing enough freedom for the appearance of the final structure to resemble the input exemplar. Our approach generates rigid shapes using a specified quantity of material while observing optional constraints such as voids, fills, attachment points, and external forces. The appearance is defined by examples, making our technique accessible to casual users. We demonstrate its use in the context of fabrication using a laser cutter to manufacture real objects from optimized shapes.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>Hong Kong</li>
</country>
<region><li>Grand Est</li>
<li>Lorraine (région)</li>
</region>
<settlement><li>Metz</li>
<li>Nancy</li>
</settlement>
<orgName><li>Université de Lorraine</li>
</orgName>
</list>
<tree><country name="France"><region name="Grand Est"><name sortKey="Martinez, Jonas" sort="Martinez, Jonas" uniqKey="Martinez J" first="Jonàs" last="Martínez">Jonàs Martínez</name>
</region>
<name sortKey="Dumas, Jeremie" sort="Dumas, Jeremie" uniqKey="Dumas J" first="Jérémie" last="Dumas">Jérémie Dumas</name>
<name sortKey="Lefebvre, Sylvain" sort="Lefebvre, Sylvain" uniqKey="Lefebvre S" first="Sylvain" last="Lefebvre">Sylvain Lefebvre</name>
</country>
<country name="Hong Kong"><noRegion><name sortKey="Wei, Li Yi" sort="Wei, Li Yi" uniqKey="Wei L" first="Li-Yi" last="Wei">Li-Yi Wei</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
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