[API-users] Maps API returning nothing

Matthew Blissett mblissett at gbif.org
Fri Jul 28 16:23:43 UTC 2023


Dear Mauro,

You need to replace the {z}/{x}/{y} with coordinates of a tile on the 
map, for example 0/0/0:

https://api.gbif.org/v2/map/occurrence/density/0/0/0@1x.png?taxonKey=212&bin=hex&hexPerTile=30&style=classic-noborder.poly

Depending what software or libraries you are using (if any), you can 
probably find further information by searching for "tile maps" or 
"slippy maps".  Open Street Map have examples for calculating the 
required tile(s) for a given location: 
https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

Best,

Matt Blissett

On 28/07/2023 16:38, Mauro Cavalcanti via API-users wrote:
> Dear ALL,
>
> I have been trying the Maps API (https://www.gbif.org/developer/maps), 
> but when attempting to run one of the demos at 
> |https://api.gbif.org/v2/map/occurrence/density/{z}/{x}/{y}@1x.png?taxonKey=212&bin=hex&hexPerTile=30&style=classic-noborder.poly 
> <https://api.gbif.org/v2/map/occurrence/density/{z}/{x}/{y}@1x.png?taxonKey=212&bin=hex&hexPerTile=30&style=classic-noborder.poly>| 
>
>
> I keep getting back an empty ("400") image. What may be the problem?
>
> Thanks in advance for any assistance you can provide.
>
> With warmest regards,
>
> -- 
> Dr. Mauro J. Cavalcanti
> E-mail: maurobio at gmail.com
> Web: https://github.com/maurobio
> "Life is complex. It consists of real and imaginary parts."
>
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> API-users at lists.gbif.org
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