local geometry service

[OlivierROSSINI]

Does ArcGIS Runtime allow to embed and use a local geometry service?
If yes, how?
The WPF API contains a LocalGeometryService class in the ESRI.ArcGIS.Client.Local Namespace, and a LocalGeometryServiceTask calss in the ESRI.ArcGIS.Client.Tasks Namespace (both in the  ESRI.ArcGIS.Client.Local assembly) but no method to project data (no Project or ProjectAsync method).
How to do that?
How to handle a disconnected editing workflow using the Editor Widget without local geometry service or any other disconnected workflow that needs a geometry service?

olivier

[MichaelBranscomb]

Hi,

Yes, there's a LocalGeometryService in the ESRI.ArcGIS.Client.Local namespace which should be used to provide the URL property to the GeometryService task in the ESRI.ArcGIS.Client.Tasks namespace. For example the C# code below will help you achieve your goal.


            // Create a new LocalGeometryService
            LocalGeometryService localGeometryService = new LocalGeometryService();

            // Start the LocalGeometryService (we'll do it synchronously because it starts quickly)
            localGeometryService.Start();

            // Create a GeometryTask and assign the URL from the LocalGeometryService
            GeometryService geometryTask = new GeometryService()
            {
                Url = localGeometryService.UrlGeometryService
            };

            // Use the Geometry task...
            // e.g. geometryTask.Project(...);

            MapPoint mapPoint = new MapPoint(-0.126, 51.500, new SpatialReference(4326));

            geometryTask.ProjectCompleted += (senderObject, graphicsEventArgs) =>
            {
                Graphic resultGraphic = graphicsEventArgs.Results[0];

                if (resultGraphic.Geometry.Extent != null)
                {
                    resultGraphic.Symbol = new SimpleMarkerSymbol()
                    {
                        Color = new SolidColorBrush(Colors.Red),
                        Size = 14,
                        Style = SimpleMarkerSymbol.SimpleMarkerStyle.Circle
                    };

                    MapPoint resultMapPoint = resultGraphic.Geometry as MapPoint;
                    resultGraphic.Attributes.Add("Output_CoordinateX", resultMapPoint.X);
                    resultGraphic.Attributes.Add("Output_CoordinateY", resultMapPoint.Y);

                    GraphicsLayer graphicsLayer = new GraphicsLayer();
                    graphicsLayer.Graphics.Add(resultGraphic);

                    MapControl.Layers.Add(graphicsLayer);
                    MapControl.PanTo(resultGraphic.Geometry);
                }
                else
                {
                    MessageBox.Show("Invalid input coordinate, unable to project.");
                }
            };

            geometryTask.ProjectAsync(new List<Graphic>() { new Graphic() { Geometry = mapPoint } }, new SpatialReference(3857));


The LocalGeometryServiceTask class is an extension to the GeometryService task and contains two convenience methods for initializing a Geometry task with a LocalGeometryService so in the example above the first few lines could be abbreviated to:

            GeometryService geometryTask = new GeometryService();
            LocalGeometryService localGeometryService = LocalGeometryServiceTask.InitializeWithLocalService(geometryTask);



Many thanks for your feedback.

Cheers

Mike

[HENRYCyril]

This works fine. I suggest you to add this sample in the API reference to clarify the use of this class. Thanks for your help.

Cyril

[MichaelBranscomb]

Hi,

Following your feedback, we've simplified the naming of the local extension classes to make their usage more obvious - for example the LocalGeometryTask class becomes GeometryServiceLocalExtensions to indicate that it's only intended to provide local extension methods for the existing GeometryService class.

The simplest code is (which you can still use at Beta 1 I think):

GeometryService geometryTask = new GeometryService();
geometryTask.InitializeWithLocalService();
...
geometryTask.Project(....);


Many thanks for your feedback - and we'll certainly be including samples / doc to cover this.


Cheers

Mike

[SalieghAziz]

HI there,

I know that this question was about a solution for WPF.

Do you have a solution for ArcGIS Runtime for .Net? I've tried using the geoprocessor class to achieve this, and while I am able to successfully submit a job (tried SubmitJobAsync and ExecuteAsync), with no expected response in both options (objGPExecuteResult.Outmessages and objGPExecuteResult.Messages remains nothing, or objGPJobInfo.JobStatus  remains "new")

[AnttiKajanus1]

In ArcGIS Runtime for .NET you can use GeometryEngine Class​ locally.

[SalieghAziz]

Hi Antti,

Thank you for your reply,

Unfortunately, that is not possible, as I need to make use of the geotransformation functionality exposed by the Geometry Service's project REST end point.

Any other suggestions?