ArcGIS Engine中调用GP的两种方法

第一种，分别设置参数：

//添加命名空间 using ESRI.ArcGIS.esriSystem; using ESRI.ArcGIS.Geoprocessor; //实现button click方法 private void button1_Click(object sender, EventArgs e) { //构造Geoprocessor Geoprocessor gp = new Geoprocessor(); //设置参数 ESRI.ArcGIS.AnalysisTools.Intersect intersect = new ESRI.ArcGIS.AnalysisTools.Intersect(); intersect.in_features = @"F:\foshan\Data\wuqutu_b.shp;F:\foshan\Data\world30.shp"; intersect.out_feature_class = @"E:\intersect.shp"; intersect.join_attributes = "ONLY_FID"; //执行Intersect工具 RunTool(gp, intersect, null); } private void RunTool(Geoprocessor geoprocessor, IGPProcess process, ITrackCancel TC) { // Set the overwrite output option to true geoprocessor.OverwriteOutput = true; try { geoprocessor.Execute(process, null); ReturnMessages(geoprocessor); } catch (Exception err) { Console.WriteLine(err.Message); ReturnMessages(geoprocessor); } } // Function for returning the tool messages. private void ReturnMessages(Geoprocessor gp) { string ms = ""; if (gp.MessageCount > 0) { for (int Count = 0; Count <= gp.MessageCount - 1; Count++) { ms += gp.GetMessage(Count); } } 

另一种添加参数：

//1-定义GeoProcessor对象 Geoprocessor gp = new Geoprocessor(); object sev = null; //2-设置参数 gp.OverwriteOutput = true; //3-设置工具箱所在的路径 gp.AddToolbox(@"F:\lib_test\AirportsAndGolf.tbx"); //4-设置输入参数 IVariantArray parameters = new VarArrayClass(); parameters.Add(@"F:\lib_test\地下水重金属数据.xls\Sheet1$"); parameters.Add("`YEAR` = 2009"); parameters.Add("W20111"); parameters.Add(@"F:\lib_test\temp.gdb\tempwww"); //5-执行工具 gp.Execute("ModelAnalysis", parameters, null);

ESRI官方帮助示例：

1.

using ESRI.ArcGIS.Geoprocessor;using ESRI.ArcGIS.AnalysisTools;public void SampleBufferTool(){  // Initialize the geoprocessor.   Geoprocessor GP = new Geoprocessor();  ESRI.ArcGIS.AnalysisTools.Buffer bufferTool = new    ESRI.ArcGIS.AnalysisTools.Buffer();  bufferTool.in_features = @"D:\St_Johns\data.mdb\roads_Buffer";  bufferTool.out_feature_class = @"D:\St_Johns\data.mdb\roads";  bufferTool.buffer_distance_or_field = "distance";  GP.Execute(bufferTool, null);}

2.

using ESRI.ArcGIS.Geoprocessor;using ESRI.ArcGIS.esriSystem;public void SampleCalculateBestPathTool(){  // Initialize the geoprocessor.  Geoprocessor GP = new Geoprocessor();  // Add the BestPath toolbox.  GP.AddToolbox(@"C:\SanDiego\BestPath.tbx");  // Generate the array of parameters.  IVariantArray parameters = new VarArrayClass();  parameters.Add(@"C:\SanDiego\source.shp");  parameters.Add(@"C:\SanDiego\destination.shp");  parameters.Add(@"C:\SanDiego\bestpath.shp");  // Execute the model tool by name.  GP.Execute("CalculateBestPath", parameters, null);