Hi Mike,
Thank you for organizing a mapathon.
The images were originally from WMS servers at Instituto Geográfico
Militar (IGM) or Sistema Nacional de Información y Gestión de Tierras
Rurales (SigTierras).
TMS layers were setup as proxy cache on OSM France server, and, even
with that, a WMS server became overloaded at the beginning of work on a
new area, and became slow to answer, before the tile cache could fill
and then provide the tiles to subsequent requests without having to get
them from the WMS server.
At some point yesterday, there were more than 177 mappers active at the
same time on a TM project, with hundreds of tiles being requested and
served each second.
What you described about the maximum zoom level sounds like an issue
that was reported, depending the maximum zoom level available from a WMS
on a given image. For that image, setting the max zoom level at 18
("tms[18]:" at the beginning of JOSM URL) solved the problem.
In general, what can be useful to solve such issues is to send a screen
capture and the coordinates where it is captured to the person who
created the project (and also to me if the imagery is hosted on
openstreetmap.fr server).
Best regards,
Jean-Guilhem
Le 22/04/2016 15:13, Mike Thompson a écrit :
>
>
> On Fri, Apr 22, 2016 at 12:45 AM, Suzan Reed <su...@suzanreed.com
> <mailto:su...@suzanreed.com>> wrote:
>
> The image is very good and it does load slowly, but I appreciate
> having that kind of clarity.
>
> This was not our experience. Below a certain zoom level it would load
> at all.
>
>
>
> drawing Residential Areas around groups of buildings inside of the
> city,
>
> In the past the way I have seen it done is each neighborhood /
> subdivision gets its own landuse = residential closed way. Granted
> that without local knowledge, it is difficult to tell. In any event,
> I agree that more explicit instructions are needed.
>
>
>
>
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