江帆, 王志伟, 朱长青, 安敏. 基于地性线的不规则三角网优化构建算法[J]. 武汉大学学报 ( 信息科学版), 2007, 32(2): 124-126.
引用本文: 江帆, 王志伟, 朱长青, 安敏. 基于地性线的不规则三角网优化构建算法[J]. 武汉大学学报 ( 信息科学版), 2007, 32(2): 124-126.
JIANG Fan, WANG Zhiwei, ZHU Changqing, AN Min. Algorithms for Building TIN-based DEM Based on Terrain Feature Lines[J]. Geomatics and Information Science of Wuhan University, 2007, 32(2): 124-126.
Citation: JIANG Fan, WANG Zhiwei, ZHU Changqing, AN Min. Algorithms for Building TIN-based DEM Based on Terrain Feature Lines[J]. Geomatics and Information Science of Wuhan University, 2007, 32(2): 124-126.

基于地性线的不规则三角网优化构建算法

Algorithms for Building TIN-based DEM Based on Terrain Feature Lines

  • 摘要: 提出了利用自动增加特征点消除平三角形的方法,并通过重构等高线验证了构网算法的实用性和有效性。实验表明,本文算法能很好地消除不合理的平三角形,优化三角网结构。

     

    Abstract: For the plane triangle in building irregularly triangle net(TIN)of DEM,some new algorithms are put forward to eliminate plane triangle.The algorithms include auto-adding characteristic points and approximating important characteristic points by Lagrange interpo-lation polynomial.On the other hand,the practicability and validity of the algorithms are validated by contours reconstructed.The experiments show that the proposed algorithm can eliminate plane triangle and optimize the structure of TIN.

     

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