Optimization of quadrangular meshes based on cloud data

Partition quality of meshes affects directly the precision of surface rebuilding in surface rebuilding of quadrilateral meshes based on cloud data,So an optimization method of meshes is proposed based on quadrilateral meshes generation of cloud data.The definition of mesh quality and topology optimization and geometrical optimization of meshes are illustrated.The degree of every node is 4 in meshes by edges optimization and treatment of fix edges meshes and internal angle of mesh;meshes shape is improved by adjusting vertex position in geometrical optimization.The method adopted way circularly that combine topology optimization and geometrical optimization of meshes to improve meshes quality and examples are given to illustrate the ability of the method.