Get GPS Coordinates on mouse tap/click on ArcGIS Esri Map in Windows Runtime Apps (Windows 8.1) -

how gps coordinates (longitude, latitude) of clicked/tapped point in arcgis esri map?

i tried mapviewtapped event like:

private void mymapview_mapviewtapped(object sender, mapviewinputeventatgs e) {   var x = e.position.x; //e.location.x;   var y = e.position.y; //e.location.y; } 

both gives large unexpected values.

you're using mapviewinputeventargs.position property - gives screen coordinates - see sample code show mouse coordinates. use location property map coordinates, shown in sample.

worth noting it's map using web mercator coordinate system - e.g. if have created mapview using default esri basemaps. if so, map coordinates reported in meters, approximately in range -20,000,000 +20,000,000.

the coordinate system wgs84 gives latitude , longitude in degrees, , used gps systems. convert point coordinate system (e.g. spatialreference of mapview, if different that), can 'project' point - use project method on geometryengine class, , pass in mappoint , spatialreference want, e.g.

mappoint projectedpoint = geometryengine.project(e.location, spatialreferences.wgs84); 

see project coordinate sample demonstrates that.