未有特别说明均为原创，转载注明出处。
网上面这方面资料比较少，ArcGIS官方网站只给了python如何生成Tin，其实可以对比python写法，写出C#版本代码。
以下是具体代码
public static void generateTIN_Advance() { Stopwatch sw = new Stopwatch(); sw.Start(); try { ILayer pLayer = Property.axMapControl.get_Layer(0);//随便打开生成TIN数据的原文件 IFeatureLayer pFeaLayer = pLayer as IFeatureLayer; string strFeaLayerPath = encryptionAlgorithm.getLayerStorePath(pFeaLayer); IWorkspaceFactory pwf = new ShapefileWorkspaceFactory(); IFeatureWorkspace pfw = pwf.OpenFromFile(strFeaLayerPath, 0) as IFeatureWorkspace; IFeatureClass pfc1 = pfw.OpenFeatureClass("XXX.shp"); IFeatureClass pfc2 = pfw.OpenFeatureClass("XXX2.shp"); Geoprocessor GP = new Geoprocessor(); CreateTin createTin = new CreateTin(); string strCreateTinName = "Tin"; if (Directory.Exists(strFeaLayerPath + @"" + strCreateTinName))//如果已经存在 删除已经存在的TIN { Directory.Delete(strFeaLayerPath + @"" + strCreateTinName, true); } else////创建存放TIN的文件夹 { string parentPath = Directory.GetParent(strFeaLayerPath + @"" + strCreateTinName).FullName; if (!Directory.Exists(parentPath)) { Directory.CreateDirectory(parentPath); } } //设置输入文件参数 string height_field = "Shape.Z"; string SF_type1 = "Mass_Points";//"masspoints" string SF_type2 ="Hard_Clip";// "hardclip" string tag_value = "<None>";//"" "null" //生成GP属性表格对象 GpValueTableObject gpValueTableObject = new GpValueTableObjectClass(); //文件obj1 参数设置 object obj11 = pfc1;//strFeaLayerPath + @"" + pfc1.AliasName + ".shp "; object obj12 = height_field; object obj13 = SF_type1; object obj14 = tag_value; //文件obj2 参数设置 object obj21 = pfc2;//strFeaLayerPath + @"" + pfc2.AliasName + ".shp "; object obj22 = height_field; object obj23 = SF_type2; object obj24 = tag_value; //设置GP属性表列数 gpValueTableObject.SetColumns(4); //设置GP属性表行数 同时传入文件 gpValueTableObject.AddRow(ref obj11); gpValueTableObject.AddRow(ref obj21); //向GP属性表内填入参数 注意已经设置过每行的第0列 即上步骤中传入的文件 //gpValueTableObject.SetValue(0, 0, obj11); gpValueTableObject.SetValue(0, 1, obj12); gpValueTableObject.SetValue(0, 2, obj13); gpValueTableObject.SetValue(0, 3, obj14); //gpValueTableObject.SetValue(1, 0, obj21); //gpValueTableObject.SetValue(1, 1, obj22); gpValueTableObject.SetValue(1, 2, obj23); gpValueTableObject.SetValue(1, 3, obj24); //调用 实例化TIN接口，输入要素为GP属性表，输出要素路径和文件名 string outTin = strFeaLayerPath + @"" + strCreateTinName; //gp.Execute("CreateTin_3d", parameters, null); createTin.in_features = gpValueTableObject; createTin.out_tin = outTin; //执行GP工具，将creatTin放入 GP.Execute(createTin, null); // Wait until the execution completes. // while (result.Status == esriJobStatus.esriJobExecuting) // Thread.Sleep(1000); // // Wait for 1 second. //MessageBox.Show(gp.GetMessages(ref sev)); } catch (Exception ex) { MessageBox.Show(ex.Message); } sw.Stop(); TimeSpan ts2 = sw.Elapsed; MessageBox.Show(String.Format("Stopwatch总共花费{0}ms. 即{1}s. 即{2}min", Convert.ToString(ts2.TotalMilliseconds), Convert.ToString(ts2.TotalMilliseconds / 1000), Convert.ToString(ts2.TotalMilliseconds / 1000 / 60))); }