ArcGIS+Engine常用源代码..doc

Arcgis二次开发常用源代码 1.点上生成面的代码 if (m_pFeatureLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon) { IPointCollection m_pPointCollection = new PolygonClass(); object missing = Type.Missing; int icount = newFeature.XLIST.Count; if (icount 3) return; for (int i = 0; i icount; i++) { IPoint point = new PointClass(); point.PutCoords(newFeature.XLIST, newFeature.YLIST); m_pPointCollection.AddPoint(point, ref missing, ref missing); } IPolygon m_pPolygon = m_pPointCollection as IPolygon; if (m_pPolygon == null) { System.Windows.Forms.MessageBox.Show(null); return; } else { ITopologicalOperator pTopo = m_pPolygon as ITopologicalOperator; if (pTopo != null) { pTopo.Simplify(); } } IWorkspaceEdit m_pWorkspaceEdit = m_EngineEditor.EditWorkspace as IWorkspaceEdit; m_pWorkspaceEdit.StartEditOperation(); IFeature m_pFeature = m_pFeatureLayer.FeatureClass.CreateFeature(); m_pFeature.Shape = m_pPolygon as IGeometry; m_pFeature.Store(); m_pWorkspaceEdit.StopEditOperation(); } 2.文件的打开 保存 另存的代码 using System; using System.Windows.Forms; using ESRI.ArcGIS.esriSystem; using ESRI.ArcGIS.SystemUI; using ESRI.ArcGIS.Carto; namespace SaveMapDocument { /// summary /// Summary description for Form1. /// /summary public class SaveMapDocument : System.Windows.Forms.Form { public System.Windows.Forms.TextBox txtMapDocument; public System.Windows.Forms.Button cmdOpen; public System.Windows.Forms.Button cmdSave; public System.Windows.Forms.Button cmdSaveAs; private System.Windows.Forms.OpenFileDialog openFileDialog1; private System.Windows.Forms.SaveFileDialog saveFileDialog1; private IMapDocument m_MapDocument; private ESRI.ArcGIS.Controls.AxToolbarControl axToolbarControl1; private ESRI.ArcGIS.Controls.AxPageLayoutControl axPageLayoutControl1; private ESRI.ArcGIS.Controls.AxLicenseControl axLicenseControl1; private ESRI.ArcGIS.Controls.AxTOCControl axTOCControl1; /// summary /// Required designer variable. /// /summary private System.ComponentModel.Co