Create multi segment lines in WPF

ThomasZanis — Mon, 01 Apr 2024 15:39:21 GMT

Hello Thank you for any help.

To get right to it:

Summary:

I am trying to figure out the work flow on creating and editing a multi segment line in esri .net for wpf:

Esri Version: 100.15.0

.Net Framework 4.7.2

Details:

We are using the Sketcheditor to create/edit our geometry for our Features in our end user application. We received a request to add the ability to create and edit multi segment polylines. I have been digging through Documentation trying to see if there is a pre-built solution or workflow. I have included out Sketch editor code. Not sure what other information i need to include. Let me know Thank you

public partial class SketchControl : UserControl, INotifyPropertyChanged { protected void OnPropertyChanged([CallerMemberName] string propertyName = null) { var propertyChangedHandler = PropertyChanged; if (propertyChangedHandler != null) propertyChangedHandler(this, new PropertyChangedEventArgs(propertyName)); } public event PropertyChangedEventHandler PropertyChanged; private ALViewModel _vm; private bool _selectFromMapEnabled = true; public bool selectFromMapEnabled { get { return _selectFromMapEnabled; } set { _selectFromMapEnabled = value; OnPropertyChanged(); } } private PolygonBuilder _PolygonBuilder; public PolygonBuilder PolygonBuilder { get { return _PolygonBuilder; } set { _PolygonBuilder = value; OnPropertyChanged(); } } private bool _selectingFromMap = false; public bool selectingFromMap { get { return _selectingFromMap; } set { _selectingFromMap = value; OnPropertyChanged(); } } private double _animateTo = 1.0; public double animateTo { get { return _animateTo; } set { _animateTo = value; OnPropertyChanged(); } } public PolylineBuilder lineBuilder; // Need dependency objects public static readonly DependencyProperty SelectFromLayerProperty = DependencyProperty.Register("SelectFromLayer", typeof(string), typeof(SketchControl), new FrameworkPropertyMetadata(null)); public string SelectFromLayer { get { return (string)GetValue(SelectFromLayerProperty); } set { SetValue(SelectFromLayerProperty, value); } } public static readonly DependencyProperty AllowSelectFromMapProperty = DependencyProperty.Register("AllowSelectFromMap", typeof(bool), typeof(SketchControl), new FrameworkPropertyMetadata(null)); public bool AllowSelectFromMap { get { return (bool)GetValue(AllowSelectFromMapProperty); } set { SetValue(AllowSelectFromMapProperty, value); } } public SketchControl() { //var sketchEditor = _vm.MapControlMap.SketchEditor; _vm = FindResource("ALvm") as ALViewModel; InitializeComponent(); // Set the sketch editor as the page's data context DataContext = _vm.MapControlMap.SketchEditor; _vm.MapControlMap.SketchEditor.CompleteCommand.CanExecuteChanged += CanExecuteChanged; _vm.MapControlMap.SketchEditor.GeometryChanged += SEGeometryChanged; _vm.MapControlMap.SketchEditor.CancelCommand.CanExecuteChanged += cancelSketch; } private void cancelSketch(object sender, EventArgs e) { ICommand command = (ICommand)sender; if (command == _vm.MapControlMap.SketchEditor.CancelCommand) { //_vm.WaitIndicatorText = "Feature added"; //_vm.WaitIndicatorVisible = false; //var sketchEditor = _vm.MapControlMap.SketchEditor; //sketchEditor.CancelCommand.Execute(null); selectFromMapEnabled = true; selectingFromMap = false; } } private async void Sb_Start_Click(object sender, RoutedEventArgs e) { if (_vm.Current_Feature.Geometry == null) { // Create Geometry } else { // Edit Geometry SketchEditConfiguration sem = new SketchEditConfiguration(); sem.AllowMove = true; sem.AllowRotate = true; sem.AllowVertexEditing = true; sem.ResizeMode = SketchResizeMode.Uniform; sem.VertexEditMode = SketchVertexEditMode.InteractionEdit; sem. Geometry geometry = _vm.Current_Feature.Geometry; SketchCreationMode sm = ALViewModel.geometrytype2SketchCreationMode(geometry.GeometryType); try { _vm.MapControlMap.Cursor = Cursors.Pen; // If the map has a different spatial reference than the feature layer, we must reproject the feature layer to match. // Otherwise, the SketchEditor will fail. SpatialReference old_sr = geometry.SpatialReference; geometry = GeometryEngine.Project(geometry, _vm.MapControlMap.SpatialReference); _vm.MapControlMap.SketchEditor.IsVisible = true; geometry = await _vm.MapControlMap.SketchEditor.StartAsync(geometry, sm, sem); _vm.MapControlMap.SketchEditor.IsVisible = false; // Reproject the edited geometry back to the original spatial reference. _vm.Current_Feature.Geometry = GeometryEngine.Project(geometry, old_sr); } catch (TaskCanceledException) { // Ignore ... let the user cancel drawing } catch (Exception ex) { // Report exceptions MessageBox.Show("Error drawing graphic shape: " + ex.Message); } } } private void CanExecuteChanged(object sender, EventArgs e) { ICommand command = (ICommand)sender; if (command == _vm.MapControlMap.SketchEditor.UndoCommand) { } else if (command == _vm.MapControlMap.SketchEditor.RedoCommand) { } else if (command == _vm.MapControlMap.SketchEditor.CompleteCommand) { if (_vm.MapControlMap.SketchEditor.CompleteCommand.CanExecute(null)) { // Editing } else { // Not Editing } } } private void SEGeometryChanged(object sender, EventArgs e) { GeometryChangedEventArgs geo = e as GeometryChangedEventArgs; if (selectFromMapEnabled && selectingFromMap && geo.OldGeometry == null) { // We attempted to select some geometry. Is it valid? if (geo.NewGeometry != null) { MapPoint queryPoint = ((GeometryChangedEventArgs)e).NewGeometry.Extent.GetCenter(); Geometry gm = Esri.ArcGISRuntime.Geometry.GeometryEngine.Buffer(queryPoint, 2); FeatureLayer layer = (FeatureLayer)_vm.MapControlMap.Map.OperationalLayers.FirstOrDefault(x => x.Name == SelectFromLayer); //FeatureLayer layer = (FeatureLayer)_vm.MapControlMap.Map.OperationalLayers.Where(x => x.Name == "TITLES").FirstOrDefault(); var query = new QueryParameters(); //query.Geometry = queryPoint; query.Geometry = gm; query.MaxFeatures = 1; query.SpatialRelationship = SpatialRelationship.Intersects; query.WhereClause = layer.DefinitionExpression; Feature selectedfeature = layer.FeatureTable.QueryFeaturesAsync(query).Result.FirstOrDefault(); Feature f = selectedfeature; if (f != null) { _vm.MapControlMap.SketchEditor.GeometryChanged -= SEGeometryChanged; _vm.MapControlMap.SketchEditor.ReplaceGeometry(f.Geometry); _vm.MapControlMap.SketchEditor.GeometryChanged += SEGeometryChanged; // Need to populate NOTIFICATION values from TITLES _vm.Sketch_Selection = f; selectFromMapEnabled = false; } else { // REMOVE or RECREATE the NOTIFICATION to erase the values added when we selected a TITLE _vm.MapControlMap.SketchEditor.UndoCommand.Execute(null); } } } else { if (geo.NewGeometry != null) { selectFromMapEnabled = false; } else { selectFromMapEnabled = true; _vm.Sketch_Selection = null; } } } private async Task NewSegment() { } private async void Sb_Complete_Click(object sender, RoutedEventArgs e) { var sketchEditor = _vm.MapControlMap.SketchEditor; //Need to check for valid geometry! bool iv = false; // assume bad geometry if (_vm.MapControlMap.SketchEditor.Geometry != null) { switch (_vm.MapControlMap.SketchEditor.Geometry.GetType().ToString()) { case "Esri.ArcGISRuntime.Geometry.MapPoint": { // Well, if the geometry is not null, it must be valid. :) iv = true; break; } case "Esri.ArcGISRuntime.Geometry.Polyline": { Geometry pl_test = (_vm.MapControlMap.SketchEditor.Geometry); PolylineBuilder pl_pb = new PolylineBuilder(_vm.Map.SpatialReference); pl_pb.ReplaceGeometry((Polyline)pl_test); iv = pl_pb.IsSketchValid; break; } case "Esri.ArcGISRuntime.Geometry.Polygon": { Geometry pl_test = (_vm.MapControlMap.SketchEditor.Geometry); PolygonBuilder pl_pb = new PolygonBuilder(_vm.Map.SpatialReference); pl_pb.ReplaceGeometry((Polygon)pl_test); iv = pl_pb.IsSketchValid; break; } default: break; } } if (_vm.Current_Feature == null && iv) { try { _vm.WaitIndicatorText = "Adding Feature"; _vm.WaitIndicatorVisible = true; await _vm.AddFeature(_vm.MapControlMap.SketchEditor.Geometry, _vm.FeatureLayerToCreate, _vm.Sketch_Selection, _vm.Sketch_Clone, true); // Populate LANDOWNER data from PARCEL_INFO if needed if (_vm.FeatureLayerToCreate.Name == "LANDOWNER") { ALViewModel.Changed_By oldChangedBy = _vm.Current_Changed_By; _vm.Current_Changed_By = ALViewModel.Changed_By.Map_Selection; //await add_landowners(geometry); // update the PARCEL_ID and CONTACT_STATUS fields at a minimum update_LANDOWNERS(_vm.Current_Feature); _vm.Current_Changed_By = oldChangedBy; } //string[] array = { "POINT_WORK", "LINE_WORK", "POLY_WORK" }; //if (array.Contains(_vm.FeatureLayerToCreate.Name.ToUpper())) //{ // ALViewModel.Changed_By oldChangedBy = _vm.Current_Changed_By; // _vm.Current_Changed_By = ALViewModel.Changed_By.Map_Selection; // _vm.Current_Feature.Attributes["REMOVE_QTY"] = 1; // _vm.Current_Changed_By = oldChangedBy; //} _vm.WaitIndicatorText = "Feature added"; _vm.WaitIndicatorVisible = false; sketchEditor.CompleteCommand.Execute(null); //_vm.MapControlMap.SketchEditor.Stop(); } catch (Exception ex) { _vm.WaitIndicatorText = "Feature added"; _vm.WaitIndicatorVisible = false; sketchEditor.CancelCommand.Execute(null); selectFromMapEnabled = true; selectingFromMap = false; } } else { if (_vm.Current_Feature != null) { _vm.Current_Feature.Geometry = _vm.MapControlMap.SketchEditor.Geometry; } //await _vm.Save_CurrentFeature(); else { // No valid geometry. Keep editing graphic. MessageBox.Show("No valid geometry. Please continue editing.", "Error", MessageBoxButton.OK); } //sketchEditor.CompleteCommand.Execute(null); } selectFromMapEnabled = true; selectingFromMap = false; //sketchEditor.CompleteCommand.Execute(null); } private async void Sb_Select_Click(object sender, RoutedEventArgs e) { if (_vm.MapControlMap.SketchEditor.Geometry == null) { selectingFromMap = !selectingFromMap; } if (selectingFromMap == true) animateTo = .5; else { animateTo = 1; } }

Re: Create multi segment lines in WPF

AndyWeis — Mon, 01 Apr 2024 20:49:26 GMT

Hi @ThomasZanis, have you seen our Create and Edit Geometries sample on our Developers site? This lays out a workflow for creating any geometries you'll need, including multi-segment polylines.

Re: Create multi segment lines in WPF

dotMorten_esri — Tue, 02 Apr 2024 00:06:17 GMT

Just wanted to add that sample uses the new GeometryEditor introduced in 200.3. The old SketchEditor that was available in 100.15 did not fully support multi-part geometries.

Re: Create multi segment lines in WPF

ThomasZanis — Thu, 18 Apr 2024 13:06:47 GMT

Hello, Thank you for your reply. I have gone through the documentation for 100.15 and did not find anything. Version 200+ would be a perfect solution, but we can not upgrade to 200 just yet.

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Create multi segment lines in WPF

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Re: Create multi segment lines in WPF