All the major raster map services use the same 'slippy map' tiling technique to create the grid of images. When dealing with map servers it can be useful to view them.
Here is my basic OpenLayers/OpenStreetMap implementation based around the ol.source.TileDebug and the OpenStreetMap implementation to calculate between coordinate and tile positions.
Click on map to see further details.
| Clicked Coordinate |
Longitude: |
|---|---|
| Tile |
z: |
| Tile Coordinate North West |
Longitude: |
| Tile Coordinate South East |
Longitude: |