不规则三角网（TIN-Triangulated Irregular Network）是一种表示数字高程模型的方法，它既减少规则网格方法造成的数据冗余，同时在计算效率方面又优于纯粹基于等高线的方法。
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These data models include the unified model of all essential factor's structuralized triangulated irregular network (TIN) model and GIS as well as network model.
这些数据模型包括全要素的结构化不规则三角网(TIN)与GIS一体化的数据模型以及网状模型。
A triangulated irregular network(TIN) is constructed based on vector data, and DEM point-array data is computed by interpolating grid on TIN.
并基于等高线矢量数据建立不规则三角网，再内插格网生成DEM点阵数据。
IN order to improve the voxelization efficiency of large data, a fast and simple voxelization algorithm was proposed for the Triangulated Irregular Network (TIN) model.
为了改善在大数据量时体素化效率不高的缺点，针对三角形不规则网(TIN)模型的三角网特性，提出了一种快速简单的体素化算法。
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