在ArcMap -->ToolBox-->TinCreation-->Edit Tin

传入参数1：TIN

传入参数2：FeatureClass

             选择好FeatureClass之后，有一个参数是SF_type

              SF_type的取值和产生TIN的效果：

value	result region	effect
hardclip	Polygon region	If polygon out cover, out part will also generate Tin
hardline	Polygon region Union Tin region	Union region Tin