在讨论不规则三角网插值方法特点和地形基本特征的基础上,提出了顾及地形特征的不规则三角网二次插值方法。这种插值方法同时兼顾地形特征、插值精度和计算速度,还根据地形特征对不规则三角网进行了编码分类,就各类型的不规则的插值计算提出了解决方案。
This paper puts forward the method of the TIN conicoid interpolation considering the geography characteristic based on discussing the characteristics of TIN interpolation method and basic characteristic of geography. This interpolation method gives attention to three sides: the geography characteristic, interpolation accuracy and the calculation speed at the same time. This paper carrys on the code classification of the TIN based on geography characteristic, and puts forward the solution to various conicoid interpolation of TIN.