[MapProxy] Strange WMS lookalike

A.Pirard.Papou A.Pirard.Papou at gmail.com
Fri Mar 8 08:08:03 PST 2013

On 2013-03-08 15:42, Travis Kirstine wrote :
> Current MapProxy does not support direct connection to the ArcGIS REST 
> API using the export map call. Fortunately ArcGIS server is able to 
> publish WMS services as well and you should be able to use the 
> standard WMS connection.  If you are not familiar with ArcGIS server 
> you can view the "catalog" of service published and determine if WMS 
> is support (not by default)
> Check out the catalog
> http://geoservices.wallonie.be/arcgis/rest/services
> Navigate to the MapService you want to connect to:
> http://geoservices.wallonie.be/arcgis/rest/services/TOPOGRAPHIE/PICC/MapServer
> At the bottom you should see supported interfaces, if WMS is listed 
> click on it to return the GetCabilities.  You can then build your 
> connection in MapProxy using these parameters

Thanks for a very neat answer, Travis.

Yes they do support WMS at the page bottom, but in much their own way, 
that's not a long way further ;-)
<ServiceException code="InvalidData">  Cannot read capabilities file.   
On a nearby server, the file is found but it says  the server supports 
4326 whereas only 31370 is.

On the other hand, it's unfortunate that Mapproxy does not implement an 
{insert} feature à la JOSM.
I hacked the URL and appended everything but size that Mapproxy does not 
output to get that server responding.
The &bbox worked, but the request returned a default 400×400 size tile 
that was displayed by the client !!!
The only thing I need is &size={width},{height} !!!
Yet another best value for money suggestion from me, but I get no reply.

Why make "just a little bit" different request formats?  Like the just a 
little bit pregnant girl :-)

Maybe could I build a cache by limiting the WMS requests to 256×256 and 
adding &size=256,256 ?

Inventively yours,




> On 8 March 2013 06:24, A.Pirard.Papou <A.Pirard.Papou at gmail.com 
> <mailto:A.Pirard.Papou at gmail.com>> wrote:
>     Hi,
>     I'm using Mapproxy 1.4.0 and I'm facing a strange (to me) server.
>     The UI is an "ArcGIS Server REST API" at
>     geoportail.wallonie.be/walonmap
>     <http://geoportail.wallonie.be/walonmap>
>     and it makes  WMS-like but not-WMS requests like this:
>     http://geoservices.wallonie.be/arcgis/rest/services/TOPOGRAPHIE/PICC/MapServer/export?dpi=96&transparent=true&format=png8&bbox=237697.72401485278%2C135612.54079507195%2C240495.69836080144%2C137632.63858526756&bboxSR=31370&imageSR=31370&size=705%2C509&_ts=1362703550248&f=image
>     With a plain WMS source config, Mapproxy sends a plain WMS GetMap
>     request and is answered with a HTML page.
>     What is the Mapproxy configuration to access it?
>     Preferably with cache and layer configs to be sure.
>     What standard is this and where is it documented?
>     Thanks!
>     Cheers,
>     André.

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