[OpenLayers-Users] Highlighting changes in the KML layer
Adrian Popa
adrian_gh.popa at romtelecom.ro
Tue Nov 3 06:26:12 EST 2009
Thank you for the hint. I suppose I shouldn't expect to see a working
demo of what I need :)
Do you know if the patches presented in ticket 1259 are already part of
openlayers (since the latest version is from january last year?)
Thanks,
helmi wrote:
> The idea from http://trac.openlayers.org/ticket/1259
> {{{
> You could create a selectStyle that could be passed to
> Control.SelectFeature quite easily: create a style object, read the
> "highlight" styles, create a FidFilter rule for every feature (or
> groups of features with the same style), use the according "highlight"
> style as symbolizer for the rule, and add the rule to the style object
> }}}
>
> helmi03.com <http://helmi03.com>
>
> On Tue, Nov 3, 2009 at 12:59 AM, Adrian Popa
> <adrian_gh.popa at romtelecom.ro <mailto:adrian_gh.popa at romtelecom.ro>>
> wrote:
>
> Hello everyone,
>
> Sorry if this has already been discussed on the list (didn't really
> check), but I would like to know if there is a solution (or at least a
> plan to implement a feature) that �"somehow" highlights (visually) the
> elements that have been loaded �through KML - in contrast to the
> elements displayed previously.
>
> I am working at a view that displays alarms on top of the map, and if
> there is a large number of alarms, one more alarm coming every 2
> minutes
> will not catch the attention of the operator...
>
> I need a mechanism to somehow color/animate symbols loaded through KML
> which were not previously on the map. Symbols which dissapear between
> layer refreshes are not important to me. At the next refresh
> cycle, the
> highlighted symbols would no longer be highlighted (because they
> already
> exist on the map).
>
> I have a way to load KMLs periodically, avoiding the cache, but I'm
> missing the "highlight" mechanism.
>
> Hope I have presented my request in an understandable manner, and hope
> there is a solution. Maybe a property on the KML layer indicating
> if an
> item is new or not...
>
> Regards,
> Adrian
>
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