[OpenLayers-Users] Styling a point that is made up of multiple points

[Alexandre Dube]

Dave Winfield wrote:
> I apologize I was not giving all the information.  It IS a WMS layer 
> and I'm using GeoServer.
>
> Can I use a Vector layer, and still "smartly" query the database to 
> only show documents that would be seen on screen.  I have a lot of 
> points that come from the layer, and wouldn't want to always be 
> getting the whole data set.
>

Yes, with the BBOX strategy you could :

http://openlayers.org/dev/examples/strategy-bbox.html

Regards,

Alexandre

> Thank you,
>
> Dave
>
> On Thu, Jul 30, 2009 at 10:38 AM, Alexandre Dube <adube at mapgears.com 
> <mailto:adube at mapgears.com>> wrote:
>
>     Hi Dave,
>
>      What kind of wms server are you using.  MapServer ?  GeoServer ?
>      Your question seems more related to one of theses project since
>     you seem to be using a WMS layer.
>
>      One the other hand, if you used a Vector layer instead with a
>     Cluster strategy, you could replicate what you need with
>     OpenLayers.  The use of Vector features can slow down your
>     application if you have a lot of them, though.  See the OpenLayers
>     example (1) for more.
>
>     Regards,
>
>     Alexandre
>
>     (1) http://openlayers.org/dev/examples/strategy-cluster.html
>
>     Dave Winfield wrote:
>
>         Essentially, on my maps, there are multiple things happening
>         at the same exact location.  Unfortunately right I can't tell
>         that by looking at it (there's only one dot being shown) and I
>         can only tell there's more than one thing happening when I
>         click on it and do the getFeatureInfo request.
>
>         Does anyone know of a way to give a visual cue to the users?
>          Off the top of my head I'm thinking either put a number next
>         to it, or just change the color using the sld?
>         ------------------------------------------------------------------------
>
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>
>
>     -- 
>     Alexandre Dubé
>     Mapgears
>     www.mapgears.com <http://www.mapgears.com>
>
>


-- 
Alexandre Dubé
Mapgears
www.mapgears.com