[OpenLayers-Users] XML / GeoRSS / GML / KML and combined layers (Markers & SVG)

[Bart van den Eijnden (OSGIS)]

Wrt your last question, a colleague of mine has done an implementation of a
Group layer, which can be found here:

http://www.osgis.nl/download/Group.js

Example useage:

var groupLayer = new OpenLayers.Layer.Group("My group layer", {});
map.addLayer(groupLayer);
groupLayer.addLayer(layerA);
groupLayer.addLayer(layerB);

Best regards,
Bart

--
Bart van den Eijnden
OSGIS, Open Source GIS
http://www.osgis.nl


--------- Oorspronkelijk bericht --------
Van: mike <mike at bristolbeat.co.uk>
Naar: users at openlayers.org <users at openlayers.org>
Onderwerp: [OpenLayers-Users] XML / GeoRSS / GML / KML and combined layers
(Markers & SVG)
Datum: 19/09/07 07:44

> Hi,Is there any documentation of the merits / purpose and intended future
developments of the various XML layers such as GeoRSS, GML, KML etc?They
seem to be very similar and almost interchangable, and I&#39;m finding this
a bit confusing.
> For example, I&#39;m using GeoRSS to draw markers, and KML to draw
lines.&nbsp; However, this excellent GeoRSS Serialise example seems to be an
edit / draw component for lines and polys: 
>
http://dev.openlayers.org/sandbox/ahocevar/sldRenderer/examples/georss-serialize.html&nbsp;
Equally, KML boasts support for styles, although this is not implemented
yet, and if we are accepting the Google definition, then KML should support
both markers and lines / polys.
> Is there a twiki page for this or a good resource I could refer to?&nbsp;
I&#39;m considering developing this further and I&#39;d like to make sure
I&#39;m doing the right thing before I start...&nbsp; Also if anyone if
actively developing in this area I&#39;d be very interested to discuss and
see if I can help.
> My other point is about combined layers - I&#39;d like to create a layer
in the layerswitcher which shows markers and lines / polys (i.e. SVG I
assume).&nbsp; Is it possible to make a combined layer or wrap two layers
into one in some way?
> cheers, mike
> 
> 
> 
> 
> 
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