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TZID:Europe/Vienna
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DTSTART:20180325T030000
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DTSTART:20181028T020000
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DTSTAMP:20260403T220429Z
UID:5aeb0f582bc21822859584@ist.ac.at
DTSTART:20180625T130000
DTEND:20180625T143000
DESCRIPTION:Speaker: Nick Sharp\nhosted by Chris Wojtan\nAbstract: In this 
 talk\, I will present a global variational approach to cutting curved surf
 aces so that they can be flattened into the plane with low metric distorti
 on. Such cuts are a critical component in a variety of algorithms that see
 k to parameterize surfaces over flat domains\, or fabricate structures fro
 m flat materials. Rather than evaluate the quality of a cut solely based o
 n properties of the curve itself (e.g.\, its length or curvature)\, we for
 mulate a flow that directly optimizes the distortion induced by cutting an
 d flattening. Notably\, we do not have to explicitly parameterize the surf
 ace in order to evaluate the cost of a cut\, but can instead integrate a s
 imple evolution equation defined on the cut curve itself. We arrive at thi
 s flow via a novel application of shape derivatives to the Yamabe equation
  from conformal geometry\, and develop an Eulerian numerical integrator on
  triangulated surfaces. We also explore potential applications to computat
 ional design.
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:sdanzing@ist.ac.at
SUMMARY:Nick Sharp: Variational Surface Cutting
URL:https://talks-calendar.ista.ac.at/events/1243
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