iteration function meaning in Chinese

迭代函数

In this article we discuss the methods of 3d tree modeling by iteration function system ( ifs ) and l system based on the fractal . at the same time , we compare the two methods from the application of tree modeling in 3d cis and give the class definition of tree object from the object oriented point of view , in order that the tree object can be applied in 3d gis . all this research find a new and effective way for the visualization of tree in 3d gis
同时，针对树木实体在3dgis中的应用，对两种建模方法进行比较，确定l系统是3dgis中构建树木实体的最佳方法，并从面向对象角度出发，给出基于l系统的树木实体类，从而使树木实体作为3dgis中的对象之一融合到系统之中，为3dgis领域中关于树木实体的表达寻找到一条新的而且是更有效的解决途径。