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Quadrilateral meshes with high level structure and feature preservingproperty benefit industrial applications the most. Generation of such quad meshremains a challenge. Quad meshes generated using surface foliation have thehighest level structure, however they lack of the feature preserving ability.In this paper, we analyze the boundary curvature with Gauss-Bonnet theorem todetermine whether a boundary rectangle corner preserving foliation based methodexists. When it exists, we adopt a modified double cover technique togetherwith surface foliation method to generate a corner feature preserving quadmesh. The experiments demonstrate the efficacy of our algorithm.

Two improvements of the foliation based quad meshing method