在总结前人所做工作的基础上，重点研究了不规则三角网地形模型的简化方法。
Based with the comprehensively summarization of the previous works, the simplification of Terrain Modeling of triangulated irregular network is studied.
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。
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.
围绕提高建模算法的效率和改进模型表示地形的逼真度与精度等问题，研究了顾及地形特征约束条件下不规则三角网t IN的建模方法和改进措施。
In order to improving modeling efficiency and model fidelity, the author studies the modeling methods and improving measure on constructing tin considering limitation of terrain character.
为了提高填挖方计算精度，采用构建不规则三角网法，构建设计模型与现实模型。
To improve the accuracy of cut & fill earthwork volume calculation, triangulate irregular network(TIN)was adopted to build the design model and real 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。
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。
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.
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