[mapguide-users] Connecting to WMS

Stefan Dalakov s.dalakov at mapware.net
Thu Feb 5 05:19:37 EST 2009


Hi Kenneth,
I explored the error log.
The problem is that coordinate systems do not match BUT :

1. The error log says
/The coordinate system (*EPSG:32633*) of layer RissaWMSLayer1 cannot be 
different than the coordinate system (*EPSG:32632*) of the map
/2. The wms layer is configured to use /*EPSG:32632 */- in my config.xml 
it is written
/      <RasterDefinition name="Image">
        <Format>PNG</Format>
        <Transparent>true</Transparent>
        <BackgroundColor>0xFFFFFF</BackgroundColor>
        <Time>current</Time>
        <Elevation>0</Elevation>
        <SpatialContext>*EPSG:32632*</SpatialContext>
        <Layer name="VERANDA">
.......
/3. The service supports this coordinate system - in GetCapabilities 
document I have

<SRS>EPSG:32633</SRS>
<BoundingBox SRS="EPSG:32633" minx="218329.98786561" 
miny="7160648.90075887" maxx="305197.974972341" maxy="7041546.39019898"/>
*<SRS>EPSG:32632</SRS>
<BoundingBox SRS="**EPSG:32632" minx="506720" miny="7147644" 
maxx="604333" maxy="7037305"/>
*<SRS>EPSG:32634</SRS>
<BoundingBox SRS="EPSG:32634" minx="-68103.0343048812" 
miny="7200948.9760428" maxx="7352.92691530631" maxy="7073836.91252369"/>
<SRS>EPSG:9804</SRS>
<BoundingBox SRS="EPSG:9804" minx="1017422.41132931" 
miny="9427477.01214373" maxx="1234782.60719126" maxy="9172903.66920839"/>
-

So, I want the map and WMS layer to be in coordinate system *32632*, the 
Feature source is configured to use this coordinate system, the service 
supports it, but still the server sends the output in *32633.*
Can you spot my mistake ?

Best regards : Stefan Dalakov
/


/Kenneth Skovhede, GEOGRAF A/S wrote:
> Since a WMS layer is a raster layer, MapGuide requires that the 
> Coordinate System of the layer is EXACTLY the same as for the map.
>
> This means that the Coordinate System Override on the layer must match 
> the map's Coordinate System exactly.
>
> To see if there are any errors reported, look in the error log:
> C:\Program Files\MapGuideOpenSource2.0\Server\Logs\Error.log
> Regards, Kenneth Skovhede, GEOGRAF A/S
>   
>
>
> Stefan Dalakov skrev:
>> Hi all,
>> I am trying to add a WMS layer to my map.
>> I followed the procedure described here : 
>> https://trac.osgeo.org/fdo/wiki/FdoWmsNotes
>> to create a feature source.
>> When I open the feature source in Studio the connection tests OK.
>> Clicking the *Refresh* button generates an error originating from 
>> displayschema.php at line :
>> /document.getElementById("Geom_"+"RissaWMS").previousSibling.firstChild.src 
>> = "./images/collapse_pane.png";
>> /for each layer in the WMS feature source which is not critical 
>> (critical for Studio)
>> *View Data *link then reports BBOX parameter missing, which I assume 
>> is normal
>>
>> I create a Layer afterwards, based on this Feature Source. The layer 
>> seems ok - refreshes OK, nothing on screen . This I also assume 
>> normal as  the layers (as described in the  GetCapabilities 
>> document)  are  limited to scale ranges  up to 1:5000.
>>
>> I add this layer to an existing map, with matching coordinate system 
>> (EPSG:32632 of the WMS Feature Source and UTM-WGS84 / Zone 32 North 
>> of the map).
>> The WMS layer is not shown on the preview in Studio - perhaps this is 
>> also normal - my other raster layers are not previewed either.
>>
>> But when I don't see the layer data in browser I am really stressed.
>>
>> And my biggest stress is based on the fact that I do not know how to 
>> debug this situation
>>
>> Any help will be highly appreciated
>>
>>
>> Thank you in advance : Stefan Dalakov
>>
>>
>>
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>>
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>>   
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