Hi Tamara,

I think it is possible to zoom in to a map and select a location with 10-figure grid reference. It is just a question of having the correct configuration settings for the map.

There is one pair of settings, clickedSrefPrecisionMin and clickedSrefPrecisionMax which determine hard limits on the precision of a grid reference. They take values 2, 4, 6, 8 or 10 and default to 2 and 10 respectively, meaning anything between a 2-figure and a 10-figure grid reference is possible.

However there is another setting, maxZoom, which indirectly affects the smallest grid square that can be selected. The size of square that is shown when you click on the map is automatically decided based upon how far you have zoomed in to the map. This setting can restrict how far you can zoom in to the map and if you can't zoom right in, you'll never be able to click and get a 10-figure grid ref.

As an aside, I am slightly sceptical about the value of 10-figure references currently because it is pretty hard to locate yourself that accurately. A GPS may give a 10-figure grid reference but with an error usually of several metres.

Jim Bacon