| 基于拓扑关系的TIN生成算法中的边扩展算法 |
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| 引用本文： | 盛业华,赵晓虎,宋金铃.基于拓扑关系的TIN生成算法中的边扩展算法[J].现代测绘,2003,26(1):14-16. |
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| 作者姓名： | 盛业华 赵晓虎 宋金铃 |
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| 作者单位： | 中国矿业大学测绘与空间信息工程研究所,徐州,221008 |
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| 摘 要： | 描述了TIN的点、边、三角形之间的拓扑数据结构 ,并阐述了在TIN的生成过程中 ,利用这种拓扑关系进行边的扩展、新形成的三角形有效性判断 ,实验结果表明 ,采用这种拓扑结构的TIN算法比常规的边扩展TIN生成算法在算法复杂度上大为简化 ,提高了TIN生成的速度和效率
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| 关 键 词： | TIN 拓扑关系 边扩展算法 |
The Side Enlarger Arithmetic in TIN Building Arithmetic Based on Topology Relation |
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| Sheng Yehua,Zhao Xiaohu,Song Jinling.The Side Enlarger Arithmetic in TIN Building Arithmetic Based on Topology Relation[J].Modern Surveying and Mapping,2003,26(1):14-16. |
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| Authors: | Sheng Yehua Zhao Xiaohu Song Jinling |
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| Abstract: | The data topology structure of point?side?triangle of TIN is mentioned , and utilizing this topology relation, it can realize the expanding of side?the efficient judgment of new-forming triangle in the process of TIN. The result of experiment displays that the TIN arithmetic of using this topology structure is much more simple than that of using normal side expanding in arithmetic complicacy, and this method can improve the speed and efficiency of forming TIN. |
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| Keywords: | TIN Topology relation Side enlarger arithmetic |
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