| The quadtree method applied to automatic FE mesh generation and the condensationmethod for hierachic mesh are described in this paper.These methods can be used to processarbitrary planar structures,whose boundaries are described by poly lines and quadraticcurves,The mesh generator has a friendly interface,which needs little manual interference.Most of the elements generated are quadrilateral elements and a few triangular elements areused when processing the boundaries,Multiplace and multistage refinement can be obtainedfor hierachic mesh. |