[OpenLayers-Users] SLD on the fly

[Pedro Baracho]

Wow, I am impressed! What a cool map that is being displayed on my screen!
hehe :)

Thanks for the reply.

Guess I am set in solution 2.

Just another question. I don't see SLD BODY on WMS Spec, but I see it on SLD
profile for WMS. And it also states:
"GetMap is defined in WMS 1.3. The SLD profile for WMS defines additional
parameters allowing clients to request layers to be portrayed according to
some specified style."

Do you know any map server that doesn't support SLD profile for WMS, but
supports WMS? I am just curious about it, because imho it doesn't make sense
splitting SLD profile for WMS from WMS spec.

On Mon, Nov 16, 2009 at 5:54 PM, Ian Turton <ijturton at gmail.com> wrote:

> On Mon, Nov 16, 2009 at 2:29 PM, Pedro Baracho <pedropbaracho at gmail.com>
> wrote:
> > I need to change SLD on the fly to create some thematic maps. I would
> also
> > appreciate if compatibility with OGC's WFS was mantained. Have you guys
> done
> > this before? I could use some suggestions... :P
> >
> > I have done some searching and came up with a couple of solutions.
> >
> > 1- GeoServer GeoExt Styler Plugin.
> > I don't know if it is a good solution, because as far as I know, it
> changes
> > the style of the layer for all the users. I would need to replicate
> styles
> > on the server for each user and each layer. And also this requires the
> > server to be Geoserver, and breaks OGC compatibility.
> >
>
> You are right that will change it for everyone
>
> > 2- WMS 1.3 and SLD
> > MapServer implements WMS 1.3 and accepts a SLD description in the
> request.
> > GeoServer doesn't.
> > Nothing against MapServer, but my current development environment is set
> > with GeoServer..
>
> Try
> http://localhost:8080/geoserver/wms?bbox=-130,24,-66,50&Format=image/png&request=GetMap&width=550&height=250&srs=EPSG:4326&SLD_BODY=%3CStyledLayerDescriptor%20version%3D%221.0.0%22%3E%3CUserLayer%3E%3CName%3Etopp:states%3C/Name%3E%3CUserStyle%3E%3CName%3EUserSelection%3C/Name%3E%3CFeatureTypeStyle%3E%3CRule%3E%3CFilter%20xmlns:gml%3D%22http://www.opengis.net/gml%22%3E%3CPropertyIsEqualTo%3E%3CPropertyName%3ESTATE_NAME%3C/PropertyName%3E%3CLiteral%3EIllinois%3C/Literal%3E%3C/PropertyIsEqualTo%3E%3C/Filter%3E%3CPolygonSymbolizer%3E%3CFill%3E%3CCssParameter%20name%3D%22fill%22%3E%23FF0000%3C/CssParameter%3E%3C/Fill%3E%3C/PolygonSymbolizer%3E%3C/Rule%3E%3CRule%3E%3CLineSymbolizer%3E%3CStroke/%3E%3C/LineSymbolizer%3E%3C/Rule%3E%3C/FeatureTypeStyle%3E%3C/UserStyle%3E%3C/UserLayer%3E%3C/StyledLayerDescriptor%3E
> (from the demo requests page in geoserver 1.7.5) - works for all WMS
> versions.
> >
> > 3- WFS and treat SLD exhibition on the client
> > This is a double edged solution. The good thing about WFS is that I have
> > many more possibilities of control over the map. I can use SelectFeature
> > control, instead of hacking some code to implement it over WMS. But it
> also
> > gives me many other options I don't need such as the vector data. I only
> > need the images.
>
> Not sure I understand your plan here but sounds like overkill - and
> may kill off the browser if you have too much data.
>
> Ian
> --
> Ian Turton
>
> Sent from Houserville, Pennsylvania, United States
>
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