[gdal-dev] profiles in gdal2tiles.py

[Even Rouault]

Le 17/09/2021 à 23:03, Brent Fraser a écrit :
> Hi All,
>
> I'm interested in experimenting with creating tile sets in various 
> coordinate systems (other than the usual EPSG:3857 and EPSG:4326). 
>  The good news is that it looks like as of GDAL v3.2 gdal2tiles.py 
> supports a "profile" option for defining the tile set including the 
> coordinate system.
>
> The profile is in JSON with all the detail gdal2tiles would require to 
> create tiles (example: 
> https://github.com/OSGeo/gdal/blob/master/gdal/data/tms_MapML_APSTILE.json 
> <https://github.com/OSGeo/gdal/blob/master/gdal/data/tms_MapML_APSTILE.json>)
This follows the JSON encoding of the OGC Two Dimensional Tile Matrix 
Set  specification: 
https://docs.opengeospatial.org/is/17-083r2/17-083r2.html
>
> I suppose I could create a profile JSON file by hand (or do some 
> coding) but I thought I would ask if there was an existing tool?
Not that I'm aware of. A few lines of Python should be enough to create 
a profile with zoom levels varying by a factor of 2 for the resolution, 
which is currently a constraint for the profile to be accepted by 
gdal2tiles.
>
> Thanks!
> Brent Fraser
>
>
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