Question

AE中如何由IFeature 如何获取所对应的FeatureClass

Answer 1

private void OnDeleteFeatureMethod(object o) { IFeature pFeature = o as IFeature; IFeatureClass pFeatureClass = pFeature.Class as IFeatureClass; for (int i = 0; i < axMapControl1.Map.LayerCount;i++ ) { IFeatureLayer iFeatureLayer = axMapControl1.get_Layer(i) as IFeatureLayer; IFeatureClass iFeatureCla = iFeatureLayer.FeatureClass; if (iFeatureCla == pFeatureClass) { IWorkspace pWorkSpace = m_EngineEditor.EditWorkspace; textBox3.Text += "操作的文件全路径:" + pWorkSpace.PathName + "\\" + axMapControl1.get_Layer(i).Name + ".shp " + "\r\n"; break; } } if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPoint) { IGeometry iGe = pFeature.Shape; IPoint ipo = new PointClass(); ipo = iGe as IPoint; int a = 0; int b = 0; axMapControl1.FromMapPoint(ipo, ref a, ref b); textBox3.Text += "删除的点的ID号：" + pFeature.OID + "，坐标：(" + a + "," + b + ")" + "\r\n"; } else if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolygon) { textBox3.Text += "删除的多边形对象的ID号：" + pFeature.OID + "，坐标："; IPolygon pPolygon = (IPolygon)pFeature.Shape; int a = 0; int b = 0; //把该feature强制转换为一个点的集合，再取点的坐标 IPointCollection pPointCollection = pPolygon as IPointCollection; for (int i = 0; i < pPointCollection.PointCount - 1; i++) { IPoint ipo = pPointCollection.get_Point(i); axMapControl1.FromMapPoint(ipo, ref a, ref b); textBox3.Text += "(" + a + "," + b + ")" + "\t"; } textBox3.Text += "\r\n"; } else if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolyline) { textBox3.Text += "删除的线对象的ID号：" + pFeature.OID + "，其坐标："; IPolyline pPolygon = (IPolyline)pFeature.Shape; int a = 0; int b = 0; //把该feature强制转换为一个点的集合，再取点的坐标 IPointCollection pPointCollection = pPolygon as IPointCollection; for (int i = 0; i < pPointCollection.PointCount; i++) { IPoint ipo = pPointCollection.get_Point(i); axMapControl1.FromMapPoint(ipo, ref a, ref b); textBox3.Text += "(" + a + "," + b + ")" + "\t"; } textBox3.Text += "\r\n"; } axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null); }