Automatic quadrilateral mesh generation for planar regions
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KeyWord:quadrilateral mesh generation, mesh conversion, data structure,
Wu Shufang  Fu Peifu  Li Yunxing  Hu Ping
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      All methodologies for the automatic mesh generation of quadrilateral elements are reviewed in this paper. A method for the automatic conversion of trianglar meshes to quadrilateral meshes is given. An algorithm for generation quadrilateral/trianglar meshes for arbitrary polygonal domains is presents. And geometric and topological propersities are discribed under this method. Further, the advanced data structure-links renovation criteria are discribed. Mech for sample ge-ometris are presented to illustrate the validity of the mesh generator.