Geometry-Based Adaptive Parametric Surface Mesh Generation

To satisfy the requirement of finite element analysis,a geometry adaptive mesh generation approach is proposed for parametric surface.Based on constrained Delaunay triangulation under Riemannian metric context,the new approach could capture the proximity between vertices and curves from surface boundary.Together with curvature and other traditional size control strategies,the proximity is used to control the discretization of surface boundary and construct the mesh size field.An advancing front technique based on mapping transformation is then adopted to discretize the surface.Experiments on complex industrial models show that this approach is efficient to generate high-quality adaptive surface mesh based on geometric features.