tin三角网的构造 tin是使用不规则多边形拟和地球表面或者其他不规则表面，是构造数字地面模型，数字高程模型的基本方法之一-tin structure of triangulation is the use of tin to be irregular polygon and the Earth s surface or other irregular surfaces, is constructed digital terrain model, digital elevation mode

不规则三角网生成数字地形模型-地理信息系统-Triangulated irregular network generation digital terrain model- Geographic Information Systems

TIN全称为不规则三角网数字模型(Triangulated Irregular Network,TIN)，它用一组连续而不重复的三角形逼近地形表面，是数字地面模型中的一种主要表示方法。 -TIN called the triangulated irregular network digital model (Triangulated Irregular Network, TIN) with a set of continuous without repeating the trian