// Arcade Scripting Language for ArcGIS Online or ArcPro but not tested in Pro.
// Brian Culpepper sourced this arcade expression within Geonet May 22, 2019 and gives a Lat, Long coordinate pair.
// can be used for REST requests.  The text lat, long coordinate (label) is formated correctly for google maps api.
// SUCH AS FOR DRIVING DIRECTION:  https://maps.google.com/?daddr=37.52141082016713,-93.72503339491462
//
// EAST geospatial support team - 2019
// Brian Culpepper brian@cast.uark.edu
//
// Result:	36.071279, -94.159751
// Type:	String
//
//
function MetersToLatLon(mx, my) {
    // Converts XY point from Spherical web Mercator EPSG:900913 to lat/lon in WGS84 Datum
     // Fuente: http://www.maptiler.org/google-maps-coordinates-tile-bounds-projection/
    var originShift = 2.0 * PI * 6378137.0 / 2.0;

    var lon = (mx / originShift) * 180.0;
    var lat = (my / originShift) * 180.0;

    lat = 180.0 / PI * (2.0 * Atan( Exp( lat * PI / 180.0)) - PI / 2.0);
    return [lat, lon];
}


var poly = Geometry($feature);

var result = "";
if (!IsEmpty(poly)) {
    var pnt_centr = Centroid(poly);

    var latlon = MetersToLatLon(pnt_centr.x, pnt_centr.y);

    result = Round(latlon[0], 6) + "," + Round(latlon[1], 6);
} else {
    result = "";
}

return result;



return result;