[OpenLayers-Dev] SOS support

Bart van den Eijnden bartvde at osgis.nl
Sat Apr 3 09:20:38 EDT 2010

Right agreed, however we might want to wait up until OpenLayers 3.0 so that we can deprecate Layer.WFS and make that a convenience class instead.

Best regards,

On Apr 3, 2010, at 10:26 AM, Eric Lemoine wrote:

> On Thursday, March 25, 2010, Tim Schaub <tschaub at opengeo.org> wrote:
>> Bart van den Eijnden wrote:
>>> Hi,
>>> the example demonstrates the way the building blocks provided by the
>>> library can be tied together, this is highly application-specific,
>>> everybody will want to do it in a different way. The example is just
>>> one way.
>>> So what the library provides are the building blocks: 1) a protocol
>>> for communicating with an SOS 2) formats to parse several SOS
>>> responses and write out some requests
>>> These can be used with the standard OpenLayers.Layer.Vector. This is
>>> the way OpenLayers has been redesigned about 1 or 1,5 years ago,
>>> because for every type a new Layer type was necessary in the past
>>> (Layer.GML etc). With the new design, this is not necessary anymore.
>>> It is a much cleaner design.
>>> So, to answer your question, there won't be an OpenLayers.Layer.SOS.
>>> An application builder is responsible for tying the pieces together.
>> Hey-
>> Quick follow up on this.
>> Personally, I don't think we should discourage the creation of new
>> layers that use specific formats, protocols, and strategies.
>> The vector behavior design was supposed to encourage reuse of common
>> code rather than discourage new specific layer types.
>> Not sure how others feel, but if someone wanted to create a specific SOS
>> layer, I'd be in favor of including it.
>> Disclaimer: I have no idea if someone could create an SOS layer that
>> would be useful in multiple applications.
> Hi
> Adding convenience classes makes sense to me. This "vector behavior"
> stuff can look scary to newcomers, and convenience classes could
> improve the situation I think.
> For example we could have a WFS layer, pre-configured with a WFS
> protocol and a BBOX strategy, and with which the user just needs to
> set "url" and "featureNS" in the options passed to the constructor.
> This layer could be OpenLayers.Layer.Vector.WFS, although I don't like
> having four levels too much; but I guess this kind of details should
> be discussed in a specific thread.
> Cheers,
> -- 
> Eric Lemoine
> Camptocamp France SAS
> Savoie Technolac, BP 352
> 73377 Le Bourget du Lac, Cedex
> Tel : 00 33 4 79 44 44 96
> Mail : eric.lemoine at camptocamp.com
> http://www.camptocamp.com
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