کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
442040 | 692041 | 2011 | 8 صفحه PDF | دانلود رایگان |

We study the problem of optimizing the face elements of a quad mesh surface, that is, re-sampling a given quad mesh to make it possess, as much as possible, face elements of some desired aspect ratio and size. Unlike previous quad mesh optimization/improvement methods based on local operations on a small group of elements, we adopt a global approach that does not introduce extra singularities and therefore preserves the original quad structure of the input mesh. Starting from a collection of quad patches extracted from an input quad mesh, two global operations, i.e. re-sampling and re-distribution, are performed to optimize the number and spacings of grid lines in each patch. Both operations are formulated as simple optimization problems with linear constraints.
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► We have introduced a framework for optimizing the shape of quad mesh elements.
► It does not change the mesh structure or introduce extra singular vertices.
► It is simple and flexible, and can handle both isotropic and anisotropic cases.
Journal: Computers & Graphics - Volume 35, Issue 3, June 2011, Pages 444–451