Automatic generation of anisotropic quadrilateral meshes on three-dimensional surfaces using metric specifications
A new algorithm for constructing full quadrilateral anisotropic meshes on 3D surfaces is proposed in this paper. The proposed method is based on the advancing front and the systemic merging techniques. Full quadrilateral meshes are constructed by systemically converting triangular elements in the...
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| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/103369 http://hdl.handle.net/10220/19239 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | A new algorithm for constructing full quadrilateral anisotropic meshes on 3D surfaces is
proposed in this paper. The proposed method is based on the advancing front and the systemic
merging techniques. Full quadrilateral meshes are constructed by systemically converting
triangular elements in the background meshes into quadrilateral elements. By using the metric
specifications to describe the element characteristics, the proposed algorithm is applicable to
convert both isotropic and anisotropic triangular meshes into full quadrilateral meshes.
Special techniques for generating anisotropic quadrilaterals such as new selection criteria of
base segment for merging, new approaches for the modifications of the background mesh and
construction of quadrilateral elements, are investigated and proposed in this study. Since the
final quadrilateral mesh is constructed from a background triangular mesh and the merging
procedure is carried out in the parametric space, the mesh generator is robust and no
expensive geometrical computation that is commonly associated with direct quadrilateral
mesh generation schemes is needed. |
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