[OpenLayers-Users] Register an event with a marker

[Adrian Popa]

Hello Andreas,

Thanks for your help - I will look into it. I thought the Sundials 
example was too tied to KML files, so this is why I didn't chose to 
follow it.

I will continue this thread if I run into unsolvable problems.

Regards,
Adrian

Andreas Hocevar wrote:
> Hi,
>
> On Fri, Jun 19, 2009 at 3:00 PM, Adrian
> Popa<adrian_gh.popa at romtelecom.ro> wrote:
>   
>> Here's what I'm trying to do (let me know if I'm reinventing the wheel):
>> I want to load a bunch of markers onto an existing map, and I want to
>> register a function to react to a click event. The function will create
>> a popup and get some content through an ajax call to display on the map.
>>     
>
> Please consider using a vector layer instead of a markers layer for
> your markers. Then, you add a SelectFeature control to the map,
> configured with your vector layer. Now all you have to do is create
> your popup in a listener for the layer's featureselected event.
>
> As a starting point, have a look at the sundials example
> (http://www.openlayers.org/dev/examples/sundials.html). Create your
> vector layer without the protocol and strategies options. You can add
> your markers (called features for a vector layer) to the layer anytime
> by saying:
>
> var feature = new OpenLayers.Feature.Vector(
>     new OpenLayers.Geometry.Point(lon, lat), {
>         myAttribute1: "foo",
>         myAttribute2: "bar"
>     }, {
>         externalGraphic: "yourMarkerImageURL"
>     }
> );
> map.addFeatures([feature]);
>
> For creating the popup content (see onFeatureSelect function in the
> sundials example), you can e.g. access the myAttribute1 property by
> evt.feature.attributes.myAttribute1.
>
>   
>> I went through a lot of examples on the net, but things got complicated
>> - because they started using jugl.js (don't know what that is), or
>> displaying KML content.
>>     
>
> Jugl is a cool template system, created by Tim Schaub. And using
> vector layers, it makes no difference whether you display KML content
> or features that you add to your layer programmatically.
>
>   
>> Can you point me to an example of a popup that gets its contents through
>> a definable function?
>>     
>
> See above, I think that should get you there.
>
> Regards,
> Andreas.
>
>   

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