针对地形可视化的要求，在分析由等高线模型生成规则格网模型的几种常用方法的基础上基于逐点内插和分块内插，提出了一种新的模型转换算法。该算法已经在Microsoft Visual C＋＋．Net上实现，插值结果成功应用于大规模地形可视化平台。

On the basis of analyzing existing commonly used interpolation methods for generating the regular grid model from the corresponding contour line model, this paper presents a new interpolation method based on block and point-by-point interpolation technology. This algorithm has already been accomplished with Microsoft Visual C .net programming. And the result of interpolation has been successfully applied to the Terrain Visualization Platform.