gpstrack = {
              "type": "FeatureCollection",
              "features": [],
},
var x = e.latlng.lat, y = e.latlng.lng
gpsPoint = {};
gpsPoint.type = "Feature";
gpsPoint.properties = {};
gpsPoint.geometry = JSON.parse(JSON.stringify({"type": 'Point', "coordinates": [x,y]}));
gpstrack.features.push(gpsPoint);

gpsRectangle ={};
gpsRectangle.type = "Feature";
gpsRectangle.properties = {};
gpsRectangle.geometry = JSON.parse(JSON.stringify({"type": 'track', "coordinates": [x,y]}));