[mapguide-users] Changing Visibility for one layer affects others

[nclayton]

A little more info on the situation...if I toggle the raster layer on while I
am outside of its visibility range, the other layers are still visible. Once
I get within range and the raster layer is displayed, I lose my other
layers. Except for a couple of text layers. 

After this point, the layers are not visible again until I begin a new
session.



nclayton wrote:
> 
> It is at the very bottom of the drawing stack. The layer is pulling from
> an aliased folder on the server and contains 595 ecw files. I'm not sure
> if that could be a factor in this issue, especially since the layers do
> not return once the raster layer is set to no longer be visible.
> 
> 
> 
> andrew.demerchant wrote:
>> 
>> Without looking at your code, I'm wondering if maybe your raster image 
>> layer is above your other layers. I'd check your layer ordering. I know 
>> how to do that in Mapguide Studio or Web Studio, but not so sure using
>> code.
>> 
>> Andrew
>> 
>> 
>> nclayton wrote:
>>> Hi all,
>>> I am trying to add functionality to toggle raster images on and off to
>>> my
>>> map. I have the raster images on a layer called aerial. I am calling a
>>> php
>>> page with the following function call in the scriptFrame:
>>>
>>>         toggleLayer($sessionId,$mapName,"aerial");
>>>
>>> The function is:
>>>
>>> 	function toggleLayer($sessId,$mapName,$layerName){
>>> 		try{
>>> 			$userInfo = new MgUserInformation($sessId);
>>> 			$siteConnection = new MgSiteConnection();
>>> 			$siteConnection->Open($userInfo);
>>> 			$ressvc =
>>> $siteConnection->CreateService(MgServiceType::ResourceService);
>>> 			$map = new MgMap();
>>> 			$map->Open($ressvc,$mapName);
>>> 			$tlyr = $map->GetLayers()->GetItem($layerName);
>>> 			$tlyr->SetVisible(!($tlyr->GetVisible()));
>>> 			$map->Save($ressvc);
>>> 		}catch(Exception $e){
>>>
>>> 		}
>>> 	}
>>>
>>> This is causing the layer to become visible, but it is also causing
>>> other
>>> layers to not be visible. 
>>> I've made a page with images showing what is happening, and it is
>>> located
>>> at:
>>>
>>> http://www.tscmaps.com/issue.htm http://www.tscmaps.com/issue.htm 
>>>
>>> Thank you for your help
>>>
>>>   
>> 
>> -- 
>> 	*Andrew DeMerchant*
>> *Computer Technologist*
>> ph.1-877-2GEMTEC x.163
>> fax 506-453-9470
>> 
>> /GEMTEC Limited <http://www.gemtec.ca>
>> /191 Doak Road
>> Fredericton, NB, Canada
>> E3C 2E6
>> 
>> 
>> _______________________________________________
>> mapguide-users mailing list
>> mapguide-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>> 
>> 
> 
> 

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