[OpenLayers-Users] Highlighting changes in the KML layer

[Adrian Popa]

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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>
>

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