[mapguide-internals] Toggling layers on and off in a load tester application.

[Kenneth Skovhede, GEOGRAF A/S]

I just saw that you are using C# somewhere.
If possible, you can use the MaestroAPI to
toggle layers via. http.

It requires binary
access, so it will be hard to port to clean JS.

Regards, Kenneth Skovhede, GEOGRAF A/S



Kenneth Skovhede, GEOGRAF A/S skrev:
> AFAIK, it is not possible to toggle layers on/off from
> a client request, even if the GUID items are present.
>
> I have never gotten it to work, and can't see it being done
> in the viewer either.
>
> You need a server side script to toggle the layer visibility
> in the runtime map.
>
> I wrote RFC 21 way back, which would support something like this:
> http://trac.osgeo.org/mapguide/wiki/MapGuideRfc21
>
> I would LOVE to have every API function supported
> in the http interface, so more functions can be performed
> without having server side access.
>
> The RFC should probably be scrapped, and a new one written
> that states that all API methods should have a http equivalent.
>
> I'm guessing that the REST API that Jason & Harris put up,
> can support something like this, but it's still a server item
> that needs to be installed.
>
> Regards, Kenneth Skovhede, GEOGRAF A/S
>
>
>
> Carl Jokl skrev:
>> I am fairly far along in in development of a .Net MapGuide Enterprise 
>> load
>> tester. I have recently had some problems when trying to toggle 
>> layers on
>> and off on the test map. I thought that this was working but it looks 
>> like
>> it may not have been after all.
>> I used the grider script as a starting point and ported the 
>> functionality to
>> .Net using our own MapGuide framework's HttpRequest making component.
>> The problem which I am having is that when I am calling the code to 
>> turn off
>> a layer and getting the image back the image does not show that layer 
>> having
>> been turned off. I even used FireFox live headers to observer every 
>> request
>> which the AJAX viewer makes to the server and my code is making 
>> requests in
>> identical format and yet for me it isn't working. I have 
>> functionality to
>> translate layer names to ids as I know layer object ids need to be
>> submitted. I have tried both the route of creating an overlay image 
>> as well
>> as just creating a regular map image. Neither approach is showing the 
>> layer
>> I am trying to hide being hidden. I can't see what is different about 
>> the
>> requests that I am making from those made by the Ajax Viewer. I feel 
>> like I
>> have tried just about everything at this point. Matching even the 
>> parameter
>> order (not that this should matter in Http but you never know when 
>> dealing
>> with Autodesk Software). We are using MapGuide Enterprise 2010 
>> Service Pack
>> 1. There is the BEHAVIOR parameter. I am using the same one as the AJAX
>> viewer but I don't know what behaviour is associated with each 
>> number. I am
>> not sure if this is even documented as I might guess a lot of this 
>> stress
>> testing work is based on a fair amount of reverse engineering.
>>
>> I did notice for a lot of the requests to create a dynamic map image 
>> overlay
>> by the AJAX view the CLIENTAGENT parameter appears twice in the url 
>> query. I
>> am pretty sure that this is a viewer bug.
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