To a large number of terrain data and the slow speed of terrain rendering, presenting a terrain method based on data block and ball error metric.

针对大规模地形数据庞大、地形绘制速度慢的问题，提出一种基于分块和包围球误差函数的地形绘制方法。

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Multiresolution modeling, used to resolve the real time rendering of large scale terrain, has attracted growing interest over the last decade.

多分辨率建模作为解决大面积地形实时动态显示的手段，近年来在国内外得到普遍的重视和研究。

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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。

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