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

Dave Winfield winfield.dave at gmail.com
Thu Jul 30 11:00:24 EDT 2009


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.

Thank you,

Dave

On Thu, Jul 30, 2009 at 10:38 AM, Alexandre Dube <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
>
>
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