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BEGIN:STANDARD
DTSTART:19920301T030000
TZOFFSETFROM:+1100
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BEGIN:VEVENT
DTSTAMP:20191203T080452Z
LOCATION:Plaza Meeting Room P1
DTSTART;TZID=Australia/Brisbane:20191118T161500
DTEND;TZID=Australia/Brisbane:20191118T164100
UID:siggraphasia_SIGGRAPH Asia 2019_sess107_papers_296@linklings.com
SUMMARY:Mandoline: Robust Cut-Cell Generation for Arbitrary Triangle Meshe
s
DESCRIPTION:Technical Papers\n\nMandoline: Robust Cut-Cell Generation for
Arbitrary Triangle Meshes\n\nTao, Batty, Fiume, Levin\n\nAlthough geometry
arising ``in the wild" most often comes in the form of a surface represen
tation, a plethora of geometrical and physical applications require the co
nstruction of volumetric embeddings either of the geometry itself or the d
omain surrounding it. Cartesian cut-cell-based mesh generation provides an
attractive solution in which volumetric elements are constructed from the
intersection of the input surface geometry with a uniform or adaptive hex
ahedral grid. This choice, especially common in computational fluid dynami
cs, has the potential to efficiently generate accurate, surface-conformin
g cells; unfortunately, current solutions are often slow, fragile, or cann
ot handle many common topological situations. We therefore propose a novel
, robust cut-cell construction technique for triangle surface meshes that
explicitly computes the precise geometry of the intersection cells, even o
n meshes that are open or non-manifold. Its fundamental geometric primitiv
e is the intersection of an arbitrary segment with an axis-aligned plane.
Beginning from the set of intersection points between triangle mesh edges
and grid planes, our bottom-up approach robustly determines cut-edges, cut
-faces, and finally cut-cells, in a manner designed to guarantee topologic
al correctness. We demonstrate its effectiveness and speed on a wide range
of input meshes and grid resolutions, and make the code available as open
source.\n\nRegistration Category: Platinum Pass, Full Conference Pass, Fu
ll Conference One-Day Pass
URL:https://sa2019.conference-program.com/presentation?id=papers_296&sess=
sess107
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