Abstract
A common representation of surfaces with complicated topology and geometry is through composite parametric surfaces. This is the case for most CAD modelers. The majority of these models focus on having a good approximation of the surface itself, but they are usually built without taking into account a subsequent mesh generation. Indeed they are often characterized by too many patches which are not logically connected and make a standard mesh generator fail. In this work, we present a novel mesh generation strategy that can handle such “bad” input data and produces an anisotropic curvature-adapted surface mesh. There are two main ingredients to achieve this goal. First of all, we define a new and fast way to project point on an input model which overcomes the presence of non-connected patches. Then we consider the higher embedding strategy to build the final anisotropic surface mesh.
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Acknowledgements
The work of Franco Dassi was supported under the “Leibniz - DAAD Research Fellowship 2014”. The work of Andrea Mola was carried out in the context of the project OpenViewSHIP, “Sviluppo di un ecosistema computazionale per la progettazione idrodinamica del sistema elica-carena”, supported by Regione FVG - PAR FSC 2007-2013, Fondo per lo Sviluppo e la Coesione.
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Dassi, F., Mola, A. & Si, H. Curvature-adapted remeshing of CAD surfaces. Engineering with Computers 34, 565–576 (2018). https://doi.org/10.1007/s00366-017-0558-2
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DOI: https://doi.org/10.1007/s00366-017-0558-2