[OSGeo-Discuss] Options for sharing geodata symbology along with WFS?

Raj Singh raj at rajsingh.org
Sat Aug 15 12:49:51 EDT 2009


Good points, Jody.
---
Raj


On Aug 14, at 11:36 PM, Jody Garnett wrote:

> I will also point out that SLD 1.0 has been split into two in order  
> to make this more clear ..
>
> SLD 1.1 really focuses on the WMS intergration
> SE 1.1 isolates the information you need about styling and is much  
> more clearly applicable to defining *just* styles
>
> The link for Symbology Encoding is:
> - http://www.opengeospatial.org/standards/symbol
>
> The symbology encoding document does not really define any new  
> concepts; it is just one document being broken into two ...
> Jody
>
> On 15/08/2009, at 4:52 AM, Raj Singh wrote:
>
>> SLD is usually thought of in conjunction with WMS because you don't  
>> see the effect of the styling until you make a map. But it  
>> certainly applies to WFS just as well in a situation like Chris  
>> mentions with Openlayers, where the client software is doing the  
>> portrayal.
>>
>> In addition to this:
>> Styled Layer Descriptor
>> http://www.opengeospatial.org/standards/sld
>>
>> you will also want to look at this:
>> Feature Styling IPR version 0.4.1 found at:
>> http://www.opengeospatial.org/standards/dp
>>
>> ---
>> Raj
>>
>>
>> On Aug 14, at 2:39 PM, Christopher Schmidt wrote:
>>
>>> On Fri, Aug 14, 2009 at 02:22:51PM -0400, Alexandre Leroux wrote:
>>>>
>>>> Hi,
>>>>
>>>> Thanks Christopher for your answer. A colleague excluded SLD by  
>>>> telling
>>>> us it only applies to WMS, which, based on your comment, isn't  
>>>> true. The
>>>> OGC website isn't clear on this (I guess we should read deeper).  
>>>> This
>>>> would enable us to generate SLDs with uDig :-)
>>>
>>> SLD is a language; at least some non-WMS tools can read SLD, and  
>>> style
>>> WFS vectors according to it. (OpenLayers can do this; I'm sure that
>>> other client software can as well.) Insofar as such a thing exists,
>>> SLD is the primary standards based way of communicating styling
>>> information regarding a set of data.
>>>
>>> Some WMS servers are capable of using SLD as their style  
>>> descriptions;
>>> I believe both MapServer and GeoServer can do this. However, other
>>> clients can as well.
>>>
>>>>
>>>>
>>>>>> answers! :-) To my defense for this OSGeo-unrelated question,  
>>>>>> we do
>>>>>> process and serve all the related geodata using OSGeo  
>>>>>> software! ;-)
>>>>>
>>>>> Which software?
>>>>
>>>> Since you're asking.. still the same project already mentioned on  
>>>> this
>>>> list: providing Canadian weather information with web maps and  
>>>> standard
>>>> web services. Our (fully working) prototypes use MapFish,  
>>>> OpenLayers
>>>> GDAL/OGR . (we also use other OSGeo software for other projects)
>>>
>>> Hm, I guess my question was unclear; I was curious what software  
>>> you were
>>> using for WMS/WFS.
>>>
>>> GeoServer uses SLD as the primary styling configuration on the  
>>> server,
>>> for example.
>>>
>>>>
>>>> Cheers,
>>>>
>>>> Alex
>>>> --
>>>> Alexandre Leroux, M.Sc., Ing.
>>>> Environnement Canada / Environment Canada
>>>> Centre météorologique canadien / Canadian Meteorological Centre
>>>> Section de la réponse aux urgences environnementales /
>>>> Environmental Emergency Response Section
>>>> alexandre.leroux at ec.gc.ca
>>>>
>>>>
>>>> _______________________________________________
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>>>> Discuss at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/discuss
>>>
>>> -- 
>>> Christopher Schmidt
>>> Web Developer
>>> _______________________________________________
>>> Discuss mailing list
>>> Discuss at lists.osgeo.org
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>>
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