Manipulating freehand-drawing

LinaYap1

Hi,

I had been exploring on ArcGIS Runtime SDK for WPF and now currently, considering transitioning to the SDK for .NET.

One of the issue I was stumped on was - the missing VertexAdded event by MapView.Editor. Is there any ways I could obtain and manipulate vertices added while doing freehand drawing?

Thanks in advance

AnttiKajanus1

You can provide IProgress<GeometryEditStatus> for the Editor when requesting the geometry and do stuff in the progress handler.

private async Task RequestFreehand()
{
    try
    {
        var progress = new Progress<GeometryEditStatus>();
        progress.ProgressChanged += progress_ProgressChanged;


        var geometry = await MyMapView.Editor.RequestShapeAsync(DrawShape.Freehand, null, progress) as Polyline;
                
        progress.ProgressChanged -= progress_ProgressChanged;


    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.ToString());
    }
}


void progress_ProgressChanged(object sender, GeometryEditStatus e)
{
    if (e.GeometryEditAction == GeometryEditAction.AddedVertex)
    {
        // Stuff
    }
}

Hope this helps. I'm a bit curious that what kind of use case you have so if you can, could you describe what you are going to do and why when the vertex is added?