The establish of this system is based on two principles, system separating from data and graphics data separating from attribute data.

系统的构建基于系统与数据相分离、图形数据与属性数据相分离两大原则。

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The main features of this study include the following points:Well combine the real structure 3-D scenes base on the Principles of Computer Graphics and Monte Carlo method.

本文工作的主要特色在于：将以计算机图形学原理生成的真实结构植被三维场景与蒙特卡罗光子追踪方法结合。

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