[OpenLayers-Trac] [OpenLayers] #143: SLD editing with OpenLayers

[OpenLayers]

#143: SLD editing with OpenLayers
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  Reporter:  cholmes at openplans.org  |       Owner:             
      Type:  feature                |      Status:  new        
  Priority:  trivial                |   Milestone:             
 Component:  general                |     Version:             
Resolution:                         |    Keywords:  sld styling
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Changes (by openlayers):

  * priority:  blocker => trivial

Comment:

 Replying to [comment:1 openlayers]:
 I have just downloaded the OL source code to see how hard this would be to
 implement. I discovoured that OL already supports SLD rendering. All you
 need to do is replace the layer: parameter with an SLD: parameter as per
 the spec and it happily returns the overlay as a dynamically rendered
 layer. See my demo at
 http://openlayers.cubewerx.getmyip.com/apps/test3.html. Maybe this should
 be documented as a feature.

 Cheers, Brad....
 brad at cubewerx.com.au


 > Accommodating for SLDs should not be a big job. I have hacked in
 solutions for other frameworks including GoogleMaps WMS API. However, I'm
 new to OpenLayers and find the caching very good for WMS layers and so
 want to use it as an alternative to my GoogelMaps application. See
 http//www.cubewerx.com.au/DemoDrapes.html. This application useds SLDs to
 render the thematic layer so I need the SLD feature urgently. Is anyone
 working on this if not I can have a go but I have not been able to
 download the source code - I gues that's another problem. Anyway, an
 update would be great.
 >
 > Cheers, Brad.....
 >
 >
 >
 >
 >
 > Replying to [ticket:143 cholmes at openplans.org]:
 > > Styled Layer Descriptor (SLD) is an open standard that specifies the
 'style' of a map, the colors and thickness of lines and what it looks like
 at various zoom levels and all.  Many WMS's support SLD, which allows a
 user to pass their SLD file, _their_ definition of what the map should
 look like, and let the server render it.
 > >
 > > In many ways this is the next step in the evolution of truly allowing
 users control of their mapping environments - you don't have to see things
 as Google decided, you can have a basemap that emphasizes different
 aspects of the data by portraying with different visuals.
 > >
 > > It would be awesome if openlayers supported this.  Even just basics,
 letting a user make roads thicker or change the colors.  But advanced
 functionality would be great, as a choice for how people actually create
 their map.  They could load up boring looking layers, and then openlayers
 could make it look quite nice.  Ideally would play well with
 min/maxScaleDenominator, part of the SLD spec, so that each zoom level
 would have it's own style.  This could make for a cool open source type
 movement around styling of maps, in addition to actually modifying the
 data.  Good SLD's could be passed around, modified for different base
 datasets.  Even further it could use filters to really dig in to the data
 (make the color of the map related to the number of unemployed divided by
 total number of people - so percentage of unemployed), and even do theming
 (divide in to quantiles).
 > >
 > > Perhaps someday we'll take a crack at it, it's non-trivial to do this,
 but euzuro wanted me to stick it in track

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Ticket URL: <http://trac.openlayers.org/ticket/143#comment:2>
OpenLayers <http://openlayers.org/>
A free AJAX map viewer