How to project a MapPoint to WGS1984?

GeorgeFaraj

I need to project a MapPoint obtained by using Map.ScreenToMap into WGS1984. What would be the quickest way to do this?

With the ArcObjects SDK I would just pass the new SpatialReference into IPoint.Project and it would project it correctly from any source spatial reference. That method doesn't exist any more apparently.

Thanks,
George

ClayGinn2

I was able to do something similar using the following code.

 private ESRI.ArcGIS.Client.Tasks.GeometryService _geometryService = new ESRI.ArcGIS.Client.Tasks.GeometryService("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");                  private ESRI.ArcGIS.Client.Geometry.MapPoint ConvertToWgsCoordinates(ESRI.ArcGIS.Client.Geometry.MapPoint point)         {             ESRI.ArcGIS.Client.Geometry.MapPoint result = null;                  System.Collections.Generic.IList<Graphic> graphics = this._geometryService.Project(new System.Collections.Generic.List<Graphic>() { new Graphic() { Geometry = point } }, new ESRI.ArcGIS.Client.Geometry.SpatialReference(4326));                 result = graphics[0].Geometry as ESRI.ArcGIS.Client.Geometry.MapPoint;             }              return result;         }

I'm converting to GCS_WGS_1984 to display coordinates on mouse over. You would have to replace 4326 with the WKID for what you're converting to.

The main issue that I have with this is that it is using an online service which I won't always have access to. I'm trying to find a way to do this locally if possible.