I wanted to know how to get the indexes (x,y) of a WMTS tile for a given geolocation (latitude, longitude) and zoom level.
For exemple, I have a POI located at (48.675, 2.7), I want to get the corresponding open-street-map tile for the zoom 10.
Can I do the math ? Do I need a webservice ? Precision : I have to do this programmatically.