Add a getPrecision() method showing # of decimals current grid is showing

[jywarren]

So if the grid drawn is to 44.001 precision, .getPrecision() would return 3. This should have a test written to it -- zoom the map with a Leaflet command, and check that the precision has changed!

It can be calculated based on the zoom level of the map, and should match the grid drawn by the Grid system (detailed in #18).

As the map is zoomed in and out, the precision will change (as shown in the displayed grid).

[mridulnagpal]

@jywarren Is there anything left of this issue?

[jywarren]

Just documenting it in the README?

…

On Thu, Jun 22, 2017 at 4:49 PM, Mridul Nagpal ***@***.***> wrote: @jywarren <https://github.com/jywarren> Is there anything left of this issue? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#17 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AABfJwuom5yJ5JoGkbfpQXsVp3DpNA2Kks5sGtNggaJpZM4N898V> .

[mridulnagpal]

Is this done?

[jywarren]

👍