Exception | Description |
---|---|
ArcGIS.Core.Geometry.Exceptions.GeometryException | This feature's type of shape (i.e., geometry) is not supported. |
public async Task SearchingAFeatureClass() { await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() => { using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde")))) using (FeatureClass schoolBoundaryFeatureClass = geodatabase.OpenDataset<FeatureClass>("LocalGovernment.GDB.SchoolBoundary")) { // Using a spatial query filter to find all features which have a certain district name and lying within a given Polygon. SpatialQueryFilter spatialQueryFilter = new SpatialQueryFilter { WhereClause = "DISTRCTNAME = 'Indian Prairie School District 204'", FilterGeometry = new PolygonBuilderEx(new List<Coordinate2D> { new Coordinate2D(1021880, 1867396), new Coordinate2D(1028223, 1870705), new Coordinate2D(1031165, 1866844), new Coordinate2D(1025373, 1860501), new Coordinate2D(1021788, 1863810) }).ToGeometry(), SpatialRelationship = SpatialRelationship.Within }; using (RowCursor indianPrairieCursor = schoolBoundaryFeatureClass.Search(spatialQueryFilter, false)) { while (indianPrairieCursor.MoveNext()) { using (Feature feature = (Feature)indianPrairieCursor.Current) { // Process the feature. For example... Console.WriteLine(feature.GetObjectID()); } } } } }); }
public async Task SelectingFeaturesFromAFeatureClass() { await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() => { using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde")))) using (FeatureClass enterpriseFeatureClass = geodatabase.OpenDataset<FeatureClass>("LocalGovernment.GDB.FacilitySite")) { List<Coordinate2D> newCoordinates = new List<Coordinate2D> { new Coordinate2D(1021570, 1880583), new Coordinate2D(1028730, 1880994), new Coordinate2D(1029718, 1875644), new Coordinate2D(1021405, 1875397) }; SpatialQueryFilter spatialFilter = new SpatialQueryFilter { WhereClause = "FCODE = 'Park'", FilterGeometry = new PolygonBuilderEx(newCoordinates).ToGeometry(), SpatialRelationship = SpatialRelationship.Crosses }; // For Selecting all matching entries. using (Selection anotherSelection = enterpriseFeatureClass.Select(spatialFilter, SelectionType.ObjectID, SelectionOption.Normal)) { } // This can be used to get one record which matches the criteria. No assumptions can be made about which record satisfying the // criteria is selected. using (Selection onlyOneSelection = enterpriseFeatureClass.Select(spatialFilter, SelectionType.ObjectID, SelectionOption.OnlyOne)) { } // This can be used to obtain a empty selction which can be used as a container to combine results from different selections. using (Selection emptySelection = enterpriseFeatureClass.Select(spatialFilter, SelectionType.ObjectID, SelectionOption.Empty)) { } // If you want to select all the records in a table. using (Selection allRecordSelection = enterpriseFeatureClass.Select(null, SelectionType.ObjectID, SelectionOption.Normal)) { } } }); }
//var featSceneLayer = ...; //var sname = featSceneLayer.Name; await QueuedTask.Run(() => { if (!featSceneLayer.HasAssociatedFeatureService) return;//no search or select //Select all features within the current map view var sz = MapView.Active.GetViewSize(); var map_pt1 = MapView.Active.ClientToMap(new System.Windows.Point(0, sz.Height)); var map_pt2 = MapView.Active.ClientToMap(new System.Windows.Point(sz.Width, 0)); //Convert to an envelope var temp_env = EnvelopeBuilderEx.CreateEnvelope(map_pt1, map_pt2, MapView.Active.Map.SpatialReference); //Project if needed to the layer spatial ref SpatialReference sr = null; using (var fc = featSceneLayer.GetFeatureClass()) using (var fdef = fc.GetDefinition()) sr = fdef.GetSpatialReference(); var env = GeometryEngine.Instance.Project(temp_env, sr) as Envelope; //Set up a query filter var sf = new SpatialQueryFilter() { FilterGeometry = env, SpatialRelationship = SpatialRelationship.Intersects, SubFields = "*" }; //Select against the feature service var select = featSceneLayer.Select(sf); if (select.GetCount() > 0) { //enumerate over the selected features using (var rc = select.Search()) { while (rc.MoveNext()) { using (var feature = rc.Current as Feature) { var oid = feature.GetObjectID(); //etc. } } } } MapView.Active.Map.ClearSelection(); });
Target Platforms: Windows 11, Windows 10