Add/delete vertex when editing a geometry

Question

Hopefully this is an easy question to answer.

After putting a polygon into edit mode, what is the action (mouse and/or key strokes) to add a vertex and delete a vertex?

I get how to move a vertex and move/scale/rotate the polygon, but adding/deleting a vertex is being elusive.

mapView.Editor.EditorConfiguration.AllowAddVertex = true;

mapView.Editor.EditorConfiguration.AllowDeleteVertex = true;

return await mapView.Editor.EditGeometryAsync(geometry);

Using ArcGIS Runtime Desktop API for Microsoft .Net  version 10.2.6.0

2017-08-04_10h02_55.png

CraigStephens1 · Answer

Anyone?

CraigStephens1 · Answer

Thanks for your response, Jennifer.  I understand your example, but that's not what I'm looking for.

Refer to the image I attached in my question.  I want to deal with that edit object directly on the map.  I figured out that the white circles in between the vertices are how you add a vertex.  Click on one, drag it around, and release and you are rewarded with a new vertex and extra white circles to drag around.  By setting AllowAddVertex = false, the white circles go away.

mapView.Editor.EditorConfiguration.AllowAddVertex = false;

return await mapView.Editor.EditGeometryAsync(geometry);

When AllowDeleteVertex = true, what do I do with the edit object on the map to delete a vertex?

JenniferNery · Answer

AddVertex and DeleteVertex commands can be activated using buttons just like Undo/Redo/Cancel/Complete commands. They are only enabled for Polyline/Polygon geometries though with provided CommandParameter. DeleteVertex will act on selected vertex (red highlight) and/or given index. <Button Content="Undo" Command="{Binding ElementName=MyMapView, Path=Editor.Undo}" /> <Button Content="Redo" Command="{Binding ElementName=MyMapView, Path=Editor.Redo}" /> <Button Content="Delete" Command="{Binding ElementName=MyMapView, Path=Editor.DeleteVertex}" /> <Button Content="Add" Command="{Binding ElementName=MyMapView, Path=Editor.AddVertex}" /> <Button Content="Cancel" Command="{Binding ElementName=MyMapView, Path=Editor.Cancel}" /> <Button Content="Complete" Command="{Binding ElementName=MyMapView, Path=Editor.Complete}" />‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Programmatically, you can invoke them using the following code: // `mapPoint` will be added after selected vertex if (MyMapView.Editor.AddVertex.CanExecute(mapPoint)) MyMapView.Editor.AddVertex.Execute(mapPoint); // `index` to delete specific vertex or // `null` to delete selected vertex if (MyMapView.Editor.DeleteVertex.CanExecute(index)) MyMapView.Editor.DeleteVertex.Execute(index);‍‍‍‍‍‍‍‍‍‍‍‍‍‍ You may also use Polyline/PolygonBuilder which also has methods for Add/RemovePoint.