【摘要】 在开发研制交通部“九五”攻关课题《山区高等级公路数模与仿真系统》的基础上 ,探讨了三角网数字地面模型TIN(TriangleIrregularNetwork)的基本理论体系框架。对TIN的数据组织、三角化准则和三角化算法作了深入的剖析和归类 ,并分析了其发展趋势。更多还原

【Abstract】 The authors discuss and analyse the theory and methods of Digital Terrain Model(DTM) based on Trianglation Irregular Net(TIN) including TIN’ data structure, triangulation criterion and algorithms of TIN and a comparison and classification of existing methods is made. Based on this paper, the TIN’s development is presented. The review in the paper is beneficial to research and development of DTM.更多还原