采用计算机生成图形图像，可以用少量的数据生成复杂的自然景物图像，例如起伏的山脉、飘浮的云彩、形态各异的植物等自然界中的各种景观。它极大地丰富了计算机图形学的内容，而且促进了计算机在仿真模拟领域的应用。根据分形迭代函数系统具有模拟自然界景物的特点，采用面向对象的编程语言VC++实现了一类模拟山树等景物的计算机编程，模拟效果十分逼真。-The use of computer-generated graphic images, you can use a small amount of data to generate complex images of natural scenes, such as rolling hills, floating clouds and shapes of the various plants and other natural landscape. It has greatly enriched the content of computer graphics, but also promotes the field of computer simulation applications. Iterated function systems based on fractal simulation of natural scenery with the characteristics of object-oriented programming language VC++ implementation of a class of trees mountain scene simulation computer program to simulate the effect is very realistic.