Return Value
The current size of the view.
//var featSceneLayer = ...; var sname = featSceneLayer.Name; await QueuedTask.Run(() => { //Select all features within the current map view var sz = MapView.Active.GetViewSize(); var c_ll = new Coordinate2D(0, 0); var c_ur = new Coordinate2D(sz.Width, sz.Height); //Use screen coordinates for 3D selection on MapView var env = EnvelopeBuilderEx.CreateEnvelope(c_ll, c_ur); //HasAssociatedFeatureService does not matter for SelectFeaturesEx //or GetFeaturesEx var result = MapView.Active.SelectFeaturesEx(env); //var result = MapView.Active.GetFeaturesEx(env); //The list of object ids from SelectFeaturesEx //At 2.x - var oids1 = result.Where(kvp => kvp.Key.Name == sname).First().Value; var oids1 = result.ToDictionary().Where(kvp => kvp.Key.Name == sname).First().Value; //TODO - use the object ids MapView.Active.Map.ClearSelection(); });
//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