Center map and zoom to fit the markers on the screen

Question

I have the following code to detect the visitors GPS position and show it on the Google Maps JavaScript v3 map. Everything works as I want it but the code will not center or

Answer 1

The general solution to fitting the map display to a set of markers is to add them to an empty google.maps.LatLngBounds object (by calling bounds.extend), then calling map.fitBounds with that bounds.