Miles Jordan wrote:
> Plus, I've already written a web based SLD editor for the
Australian
> Antarctic Division, that we plan to make available for
public use at
> some stage (no ETA yet). Right now only Antarctic Division
Data Centre
> staff can edit SLDs, but the public can download the simple styles
> that we have in our catalogue:
>
> http://aadc-maps.aad.gov.au/aadc/symbology
>
> I'm also working on a java based stand-alone editor that
isn't too far
> from completion (I need time, which I have little of) - It would be
> really good to be able to integrate a mini-wms in it to render
> previews using getLegendGraphic reqests.. Still thinking
about how to
> do it... Watch this space...Very cool. Is it pure java, like applet? Or is it using
some sort of
jsps or other web page framework? If the latter you might
just leverage
openlayers to handle the WMS requests. If not you may try using
GeoTools's WMS access.Chris
It's pure java. For now I'm running Geoserver on my notebook which makes the previews for me in an embedded browser frame, but it's a really clunky approach and shouldn't be like that, because it means that every time you make a change, the SLD is written to the disk (somewhere web-accessible so Geoserver can read it, so you need to run a mini web server too) a GetLegendGraphic request is sent to geoserver wms, pointing to the SLD, and the resulting PNG is displayed in the browser frame.
What would be much better would be to have the GetLegendGraphic functionality built in - I figured having learnt so much about SLDs doing Antarctic Division work, that I might as well not waste it! Seeing as you sound interested, I'll see if I can finish off a few things and post what I've done... Soon...
The web-based Antarctic SLD generator was all written in Coldfusion.
Regards,
Miles
>
> Miles Jordan
>
> Applications Developer
> Data Centre
> The Australian Government Antarctic Division
> 203 Channel Hwy, Kingston TAS 7053
> [w] http://www.aad.gov.au
>
>
>> -----Original Message-----
>> From: geoserver-users-bounces@lists.sourceforge.net
>> [mailto:geoserver-users-bounces@lists.sourceforge.net] On
>> Behalf Of Brent Owens
>> Sent: Thursday, 22 February 2007 3:28 AM
>> To: Fabio Da Soghe
>> Cc: 'geoserver-users@lists.sourceforge.net'
>> Subject: Re: [Geoserver-users] R: R: SLD editor [Sec=Unclassified]
>>
>>
>> The benefit of a web-based tool is that anyone can just head
>> to the one
>> website and use it, and it can be shared by various existing
>> open source
>> products already out there that are based on the web (mapbuilder,
>> openlayers, geoserver). Also, such web-based tools are
>> relatively easy
>> to use with javascript and the new abundance of javascript
>> libraries to
>> make the programmer's life easy (GWT, script.aculo.us,
>> prototype). I've
>> planned out how long it would take and the difficulty and
it would be
>> quite feasible to make one (maybe 1 month full time). We just
>> need some
>> time and funding =)
>>
>> Brent Owens
>> (The Open Planning Project)
>>
>>
>>
>> Fabio Da Soghe wrote:
>>> I completely agree: there is a big middle ground between
>> the simplest
>>> SLD and the monstrous one currently uncovered by a tool
>> (neither open
>>> source nor proprietary, as far as I know). In a typical GIS
>> scenario
>>> we see the GIS operator (as such, not a programmer able to
>> hand-code
>>> the SLD) creating important thematic symbolizations for
data he/she
>>> has built. Every commercial GIS software today can do
that (ArcGis,
>>> MicroStation, AutoCAD, Geomedia, etc.) but there's no way
to export
>>> that simbolization in SLD.
>>>
>>> We found this:
>>>
http://arcmap2sld.geoinform.fh-mainz.de/ArcMap2SLDConverter_Eng.htm
>>>
>>> The interesting idea is that you can use all the power and
>>> user-friendlyness of such a rich tool like ArcGis and having its
>>> thematism converted in an SLD file; of course that
>> conversion tool is
>>> far from complete
>>>
>>> If I can say, I think it was a pity to have several very basic SLD
>>> editors open source (MapBuilder, maybe Geoserver is
>> creating one too),
>>> even web based (isn't it a nonsense to create such a
>> complex GUI tool
>>> in a web interface?), and not developing a single robust
>> and complete
>>> tool, like uDig could became (there are not many fast
>> improvements in
>>> this direction, it seems to me).
>>>
>>> Only my 1 cent.
>>>
>>> Cheers,
>>>
>>> Fabio
>>>
>>>
>>>> -----Messaggio originale-----
>>>> Da: Andrea Aime [mailto:aaime@anonymised.com]
>>>> Inviato: mercoledì 21 febbraio 2007 15.41
>>>> A: Fabio Da Soghe
>>>> Cc: 'geoserver-users@lists.sourceforge.net'; User-friendly
>>>> Desktop Internet GIS
>>>> Oggetto: Re: [Geoserver-users] R: SLD editor
>>>>
>>>> Fabio Da Soghe ha scritto:
>>>>
>>>>> Indeed this seems very odd to me: I was sure there
would have been
>>>>> plenty of open source utility to edit visually an SLD
style, but
>>>>> there's none today.
>>>>>
>>>>> In my company we are in great difficult for this reason:
>>>>>
>>>> programmers
>>>>
>>>>> are the only capable of editing an SLD document with good
>>>>>
>>>> proficiency
>>>>
>>>>> but they are busy developing the application that will use
>>>>>
>>>> it, and the
>>>>
>>>>> GIS people has not all the XML and WMS knowledge needed to
>>>>>
>>>> create more
>>>>
>>>>> then the simplest style.
>>>>>
>>>>> Maybe SLD is not so much used today?
>>>>>
>>>> The only systems I know using SLD are those Geotools based, and
>>>> DeeGree. uDig uses SLD under covers, whilst
unfortunately Geoserver
>>>> does not have an SLD editor. To be fair, uDig covers the most
>>>> common cases, and makes you revert to SLD hand coding for the
>>>> most complex issues.
>>>>
>>>> The WMS spec did not force people to use SLD, and given the
>>>> complexity of the specification, most just flew away.
>>>>
>>>> I agree an SLD editor is very much needed, yet:
>>>> * basic cases are handled by uDig. The only pity is that
>> it's hard to
>>>> build a complex layered style with different "simple"
styles for
>>>> different scale levels, and hard to apply filters (the
>> CQL module
>>>> would allow for quick and intutive filter spec input).
>>>> * more complex ones tend to turn into scripts anyways. On the
>>>> Sigma demo we do have an SLD that is around 2000 lines, any
>>>> graphical
>>>> editor allowing to play with such a best would not
>> probably be much
>>>> simpler than coding XML directly...
>>>>
>>>> I guess the middle ground is the interesting territory
that's not
>>>> covered, that is, scales and filters with relatively static
>>>> symbolizers. uDig could evolve to cover it.
>>>>
>>>> Cheers
>>>> Andrea
>>>>
>>>>
>>>>
>>>
>>
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___________________________________________________________________________
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