change of room: Franco Dassi's seminar at SISSA

[Emanuele Tuillier Illingworth]

SEMINAR ANNOUNCEMENT


Franco Dassi
(Weierstrass Institute for Applied Analysis and Stochastics, Berlin)

Title: Anisotropic Surface Mesh Generation of Complex CAD Models

Abstract:
One of the most common representation of surfaces with complicated 
topology and geometry is through composite parametric surfaces, this is 
the case of Computer Aided Design models (CAD Models).

These models provide a very accurate representation of the geometry 
itself, but there are some issue when we use them to build a suitable 
discrete surface, for instance a piece-wise triangular mesh. First of 
all a CAD model can be composed by surfaces that are not topologically 
connected but they are joint up to a specified tolerance. In such cases, 
finding a new point on this input surfaces can be really expensive from 
the computational point of view.

Moving from the projectors developed in DEALII, [4, 5] and other new 
features, [2], we present an optimization-based surface re-meshing 
scheme that is able to overcome all the previous points. This new 
re-meshing technique is inspired by the work of Lévy and Bonneel [1], 
which embeds a smooth surface into a high-dimensional space and re-mesh 
it uniformly in this space, [3]. The final result is a curvature-adapted 
anisotropic surface mesh, where the triangles are properly oriented 
according to the curvature of the surface.


Venue: SISSA, Wednesday 27 May at 5 pm in lecture *room 135*