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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These algorithms solve the conflict between the rendering rate and the quality in an effect way and realize rapid the real-time ramble in large scale terrain scenes.

实验结果表明，该算法有效地解决了绘制速度与质量之间的矛盾，较好地实现了大规模地形场景的实时快速漫游。

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