Let's take a look at a couple of examples on coordinates from our previous maps:
Open up the final example from Chapter 1, Getting Started with OpenLayers. Pan around the map in any direction. Then, in Chrome Developer Tools, type the following:
map.getView().getCenter();
Depending on where you have panned, your output should read something like the following:
[9397474.0038099,3595597.9798909]
Now, open up the example from the beginning of this chapter. Pan around, and then in Chrome Developer Tools, type:
map.getView().getCenter();
You should see something like the following:
[-72.8125, 19.6875]
Reuse this last array to change the representation of your degrees values. For calculation, we always use dd (decimal degrees) but some people such as sailors will prefer the DMS (Degrees, Minutes, Seconds) notation:
ol.coordinate.toStringHDMS([-72.8125, 19.6875]);