This paper introduced the modeling process and realization method and terrain simplification of the freeway three-dimensional scene.
文中介绍了高等级公路三维视景的建模过程、实现方法，以及地形的简化技术。
At chapter 4, we focus on our research on the rendering, roam and continuous multiresolution terrain simplification algorithm of large-scale terrain scene.
在第4章重点研究了大规模地形场景的显示和漫游技术和实时连续的多分辨率地形简化算法。
The cracks caused by different node resolutions are mended with different ways according to view distance. The terrain simplification is attained effectively.
根据视距确定由于分辨率不同导致的裂缝缝补方法，有效地实现了地形的简化。
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