ESRI.ArcGIS.AnalysisTools 与 ESRI.ArcGIS.Geoprocessor

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使用ESRI.ArcGIS.AnalysisTools中的工具（例如：泰森多边形的建立等），使用以下代码：
Geoprocessor gp = new Geoprocessor();
            gp.OverwriteOutput = true;
            ESRI.ArcGIS.AnalysisTools.CreateThiessenPolygons CTP = new CreateThiessenPolygons（@"D:\AEtestyao\Data\school.shp",
                                         "D:\AEtestyao\Data\CTP.shp");
            CTP.fields_to_copy = "ONLY_FID";
gp.Execute(CTP, null);

开始一直得不到结果，然后上网查了很久后终于解决了。一般都会是由于工具未注册导致（the tool is not licensed）。
解决方案为：在主窗体的初始化函数中加入代码,如下：
public Mainform()
        {
            #region 初始化许可
            IAoInitialize m_AoInitialize = new AoInitializeClass();
            esriLicenseStatus licenseStatus = esriLicenseStatus.esriLicenseUnavailable;

            licenseStatus = m_AoInitialize.Initialize(esriLicenseProductCode.esriLicenseProductCodeArcInfo);
            //默认第一个为有效地，之后无效，此级别最高，可用绝大多数功能

            //licenseStatus = m_AoInitialize.Initialize(esriLicenseProductCode.esriLicenseProductCodeEngine);级别最低
            #endregion
InitializeComponent();
        }
关键代码一定要放正确，放到InitializeComponent()后会无效。

原因说明下：系统搭建时，axLicenseControl默认使用的是esriLicenseProductCodeEngine，这个的级别是最低的，导致ESRI.ArcGIS.AnalysisTools中的很多功能无法使用，所以要重新设置。注意：在axLicenseControl上进行右键查属性设置无法使设置生效，故只能加代码。

ArcGIS Engine中调用GP的两种方法

//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); } }

//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：

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);}

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);

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