[OpenLayers-Users] mouse event return clicked layer

[gustavo palminha]

Hello.
As you say "....set opacity or remove layer."
But the idea would be to reference that layer with a click on the map.
Do you do that?
And if so how?
Regards.
GP

Arnd Wippermann wrote:
> 
> Hi,
> 
> I use in my application the possibility to set the active layer for the
> map.
> 
> 
> With this I am able to accomplish general functions like set opacity or
> remove layer.
> And I can decide, which special functions are possible for this layer.
> I.e.
> if it is WMS layer, i can do a GetFeatureInfo request for that layer, if
> it
> is a vector layer I can display a editing toolbar.
> 
> Arnd
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
> Auftrag von gustavo palminha
> Gesendet: Freitag, 4. September 2009 16:32
> An: users at openlayers.org
> Betreff: Re: [OpenLayers-Users] mouse event return clicked layer
> 
> 
> After studying the GetFeatureInfo example from openlayers i looked into
> the
> WSDL of the WMS server that was used for building the example.
> After looking into it there was references in the WSDL about the
> GetFeatureInfo. After a short look into the foruns about the
> GetFeatureInfo
> i had the feeling that there a few stet to acomplish this, so whats called
> with a fewlines of code from the OL requires a server setup (Mapserver or
> Geoserver) to be able to retrieve back the information.
> I will try to find a alternative solution to my application.
> I was just curious if there was any way to retrive back the name of the
> WMS
> clicked layer, because thats the only thing i need so far, the rest is
> done.
> Regards.
>  
> 
> Andreas Hocevar-2 wrote:
>> 
>> gustavo palminha wrote:
>>> Hello andreas.
>>> I bottom line is that i would like to create a sort of GetFeatureInfo 
>>> for my WMS layers.
>>> I do not use mapserver or geoserver, instead i use manifold gis which 
>>> doen not provide a valid WSDL for a working GetFeatureInfo.
>>>   
>> 
>> Wow, I was not aware that there is a SOAP-based flavour of 
>> GetFeatureInfo that requires a WSDL. I think your point is that 
>> Manifold does not support GetFeatureInfo [1].
>> 
>>> So my main goal would be to know how to discover a way to capture the 
>>> name of the clicked wms layer.
>>> Assuming that this is not possible i was thinking about doing this:
>>> OL Side (client side)
>>> •Build a list of shown/active layers (by reading the layers on the 
>>> layser selection menu) •Pass this list to a webservice with the x,y 
>>> Server Side (webservice) •Filter them excluding the ones from the 
>>> list where they did not touch/intersect the x/y •Read back the items 
>>> retrieved and the user should have pressed the last layer in the 
>>> list.
>>>   
>> 
>> This sounds like re-inventing the wheel. See [1] for suggestions on how
>> to work around this. You could also contact Manifold support and suggest
>> they add GetFeatureInfo (hey, you paid for that software), or replace
>> Manifold with some GetFeatureInfo capable WMS like Geoserver or UMN
>> Mapserver.
>> 
>> Regards,
>> Andreas.
>> 
>> [1] http://forum.manifold.net/forum/t82857.12
>> 
>> -- 
>> Andreas Hocevar
>> OpenGeo - http://opengeo.org/
>> Expert service straight from the developers.
>> 
>> _______________________________________________
>> Users mailing list
>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
>> 
>> 
> 
> 
> -----
> Regards.
> GP
> -- 
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-----
Regards.
GP
-- 
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