[mapserver-users] Using dimensions with MapServer as WMS client

[Alexandre Saunier]

Thanks for the reply.

>  Only wms_time is supported by mapserver acting as a wms server.

I guess you meant "acting as a wms client"?
That would explain why metadata such as
"wms_dimension_elevation_uservalue" seem to be ignored.

A workaround would be to directly add the additional parameters in the
CONNECTION attribute, by hand in the mapfile or on the fly using
mapscript method layerObj::set('connection', ...).

Yewondwossen Assefa wrote:
> Alexandre,
> 
> 
>  Only wms_time is supported by mapserver acting as a wms server. It is
> also the only dimension that is advertised through the capabilities
> document.  From what I can I see the map context only loads/save the
> dimension into Mapserver metadata, but it is not used for anything.
> 
>  Best Regards,
> 
> 
> Alexandre Saunier wrote:
>> Hello,
>>
>> I use Mapserver 5.0.2 as a client sending GetMap requests to some WMS
>> server. Requests should contain additional parameters such as "time" and
>> "elevation". For instance:
>> wms?LAYERS=...&REQUEST=GetMap&SERVICE=WMS&BBOX=...&TIME=...&ELEVATION=...
>>
>> Using a "wms_time" metadata in the layer definition in the mapfile, I
>> have succeeded in  adding the "TIME" parameter to the request.
>>
>> On the other hand, in order to add the "ELEVATION" parameter I have
>> tried to use the "wms_dimension*" metadata parameters as described in
>> http://mapserver.gis.umn.edu/docs/howto/mapcontext#layer-object-metadata
>> but couldn't have them taken into account. For instance:
>>
> 
> 
>>  LAYER
>>       NAME "foobar"
>>       TYPE RASTER
>>       CONNECTION "http://foobar/wms?"
>>       CONNECTIONTYPE WMS
>>       METADATA
>>         "wms_srs"             "EPSG:4326"
>>         "wms_name"            "foobar"
>>         "wms_server_version"  "1.1.1"
>>         "wms_format"          "image/jpeg"
>>         "wms_title"           "Foobar"
>>         "wms_onlineresource"  "http://foobar/wms?"
>>         "wms_time"            "2007-06-13T12:00:00Z"
>>         "wms_dimension_elevation_uservalue" "100.0"
>>       END
>>  END
>>
>> I have also tried to add other wms_dimension* parameters (such as
>> wms_dimensionlist or wms_dimension_elevation_default) as listed in the
>> manual example but with no success. In addition it seems that using
>> "wms_dimension_time_uservalue" instead of "wms_time" does not work
>> either.
>>
>> Thus I was wondering what were the required wms_dimension* parameters to
>>  add a dimension in a WMS GetMap performed by Mapserver and if there
>> were some extra settings needed to enable dimensions support?
>>
>> Thanks for your help,
>> Alexandre
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>>
> 
>