[mapguide-users] Silverlight/Moonlight Viewer

Thu Jun 26 06:50:13 EDT 2008

Yes, exactly. But it does require the "serverconfig.ini" file, and the 
correct version of the MgApi binaries.

You can use the IServerConnection interface, and then change the 
connection depending on your access needs:

ServerConnectionI con;
if (servername == "localhost") //Perhaps check for LAN?
    con = new LocalNativeConnection(...);
else
    con = new HttpServerConnection(...);

LayerDefinition layer = con.GetLayerDefinition(...);

Regards, Kenneth Skovhede, GEOGRAF A/S

Maksim Sestic skrev:
> Hi Kenneth,
>  
> Thanks for the clarification, I didn't get the concept of Maesto API 
> LocalNativeConnection in first place. The assumption is - if I develop 
> a managed server-side component relying on Meastro API 
> LocalNativeConnection, then it would use the headerless loopback 
> connection to MG repository (aside from managed object 
> (de)serialization)?
>  
> Regards,
> Maksim Sestic
>
> ------------------------------------------------------------------------
> *From:* mapguide-users-bounces at lists.osgeo.org 
> [mailto:mapguide-users-bounces at lists.osgeo.org] *On Behalf Of *Kenneth 
> Skovhede, GEOGRAF A/S
> *Sent:* Thursday, June 26, 2008 12:07
> *To:* MapGuide Users Mail List
> *Subject:* Re: [mapguide-users] Silverlight/Moonlight Viewer
>
> There are. If you create a MgResourceService object, you are talking 
> to the repository.
> And MaestroAPI uses this (with a LocalNativeConnection) to talk to the 
> MapGuide server.
>
> I have not followed it all the way, but I think that the 
> MgResourceService is about as close
> as it gets, to the repository content.
>
> Alternatively, you can use DBXml and read the database directly, but 
> that is a recipie for trouble.
>
> Regards, Kenneth Skovhede, GEOGRAF A/S
>   
>
>
> Maksim Sestic skrev:
>> I agree, the thing is that there's no MG managed wrappers we can 
>> leverage to talk to the repository manager directly. If we had one, 
>> we could start from that point on. Could we use Meastro API for 
>> repository objects serialization/deserialization in managed fashion then?
>>  
>> Regards,
>> Maksim Sestic
>>
>> ------------------------------------------------------------------------
>> *From:* mapguide-users-bounces at lists.osgeo.org 
>> [mailto:mapguide-users-bounces at lists.osgeo.org] *On Behalf Of 
>> *Kenneth Skovhede, GEOGRAF A/S
>> *Sent:* Thursday, June 26, 2008 11:30
>> *To:* MapGuide Users Mail List
>> *Subject:* Re: [mapguide-users] Silverlight/Moonlight Viewer
>>
>> Yes, the http roundtrip time is a beast.
>>
>> I think the server is (partly) divided, with one part being a 
>> repository manager.
>> You can already retrieve resources with calls, and coordinate data 
>> with another.
>> The MgApi interacts directly with the server, it is still serialized, 
>> but binary.
>> The MgApi uses the loopback connection, but does not use a webserver, 
>> and has no http headers.
>>
>> So you can still do it, but I agree that it would make sense to 
>> divide the different parts more rigidly.
>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>   
>>
>>
>> Maksim Sestic skrev:
>>> Hi Kenneth,
>>>  
>>> I guess that someone :-) needs to build a tier-neutral repository 
>>> viewer first, then leverage it's API via Silverlight/Moonlight. 
>>> Presumably using .NET. Currently, the engine is called MapGuide 
>>> Server :-) but it's kernel is server-tier oriented and any external 
>>> communication with it goes via Http on mandatory base. It would be 
>>> perfect if we had respository manager as a separate API - 
>>> representing the actual core. Then, a web-tier API (another 
>>> component) leverages repository API to talk over Http with thin 
>>> clients. So developers might pick if they want to use either 
>>> web-tier approach (i.e. JavaScript) or want to talk via SOAP/linking 
>>> to the repository manager directly.
>>>  
>>> Don't know actually... just a couple of thoughts from my side.
>>>  
>>> Regards,
>>> Maksim Sestic
>>>
>>> ------------------------------------------------------------------------
>>> *From:* mapguide-users-bounces at lists.osgeo.org 
>>> [mailto:mapguide-users-bounces at lists.osgeo.org] *On Behalf Of 
>>> *Kenneth Skovhede, GEOGRAF A/S
>>> *Sent:* Thursday, June 26, 2008 10:04
>>> *To:* MapGuide Users Mail List
>>> *Subject:* Re: [mapguide-users] Silverlight/Moonlight Viewer
>>>
>>> Silverlight uses GDI+, which also supports hardware acceleration.
>>> I would prefer Silverlight over Java because it intergrates better 
>>> with the html DOM (IMO).
>>>
>>> As for codebase, the current viewers are based on Javascript, and 
>>> they are limited to
>>> manipulating pre-rendered images.
>>>
>>> The DWF viewer is some of it, but it is still ActiveX based.
>>> I suppose one could make plugins for all browsers, but it still 
>>> difficult
>>> to persuade regular web users to install it.
>>>
>>> Since Silverlight/Moonlight is more likely to be installed already,
>>> and backed by Microsoft, it will probably be easier.
>>>
>>> Flash is another option, but it is terribly hard to work with (IMO).
>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>   
>>>
>>>
>>> Carl Jokl skrev:
>>>> I think that there could potentially be a number of alternatives to using an
>>>> Active X based viewer. I could see potential also for both Flash or Java to
>>>> create a viewer too. One problem with the Active X viewer in relation to the
>>>> clients of the company I work for is the security / administrative problem
>>>> for our clients. Organisations internet security policies could interfere
>>>> with deployment of an Active X control. I would think though that the same
>>>> issue would apply to a Java based viewer too. Silverlight might work better
>>>> in this regard. 
>>>>
>>>> One of the reasons I find the Java option interesting is the availability of
>>>> JOGL essentially allowing a Applet or Web Start application to be able to
>>>> take advantage of Hardware accelerated graphics. I don't know if any
>>>> alternative viewers have been worked on. If much of MapGuide is open source
>>>> would that include the viewer? If so it might be possible to start from the
>>>> existing viewer source code and port it to another platform. 
>>>>
>>>>
>>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>>   
>>>>> Has anyone started or is considering starting development of a viewer in 
>>>>> Silverlight/Moonlight?
>>>>>
>>>>> Such a viewer should be able to achieve performance that is comparable 
>>>>> to the MapGuide 6.5 viewer,
>>>>> without the need for an ActiveX plugin.
>>>>>
>>>>> -- 
>>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> mapguide-users mailing list
>>>>> mapguide-users at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>>>
>>>>>
>>>>>     
>>>>
>>>>   
>>>
>>>
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