采用连续细节层次快速绘制技术，按照地形的局部起伏程度和用户视点信息动态确定绘制时的地形网格。
The algorithm adopted continuous level of detail for fast rendering, and dynamically generated terrain meshes according to the roughness of terrain and information of the viewpoint.
基于层次结构的动态简化方法能够根据视点的变化，实时连续地转换场景细节模型。
Of these representations, hierarchical dynamic simplification can continuously refine a LoD model at run time according to changing view point.
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