[OSM-talk] #AttributionIsNotOptional experiment on OSM France tile servers

[Mario Frasca]

On 08/03/2020 15:15, Pierre Béland via talk wrote:
> semi transparent

the problem here is technical.

I'm rewording here something that was said to me here today:

I don't think you can reply with a composite object (tile + 
transparency) to a request for a single image object.  for this, you 
need to either compute the tile on the fly, for example using 
imagemagick, or you need to keep a parallel tiles repository, with the 
transparency on top of the original tile.

technical, and economical, in terms of server space and the human action 
required.