I'll work on a footprint tonight and if needed can gladly host the imagery
from Red Cross resources so that the OSM france servers will stay up for
the existing imagery.
On Apr 23, 2016 3:26 PM, "Mike Thompson" <miketh...@gmail.com> wrote:
> Jean-Guilhem,
>
> Thanks for the explanation. It makes sense that with 177 mappers the
> imagery would be slow.
>
> Mike
>
> On Sat, Apr 23, 2016 at 3:23 AM, Jean-Guilhem Cailton <j...@arkemie.com>
> wrote:
>
>> 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> 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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>> --
>> "Je pense, avec Pascal, que le zèle est étrange « qui s'irrite contre
>> ceux qui accusent des fautes publiques, et non pas contre ceux qui les
>> commettent »." Marc Bloch
>> "I think, with Pascal, that it is a strange zeal « which chafes against
>> those who accuse public faults, and not against those who commit them »."
>>
>
>
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