[mapguide-users] Editing tool using MapGuide Open Source

[Paul Spencer]

As far as editing MapGuide OS vectors in a web client goes, OpenLayers  
is the state of the art unless you can use the DWF viewer's ActiveX  
plugin.  Because OpenLayers is implemented in javascript and relies on  
SVG or VML for the actual rendering and manipulation of vectors, you  
will find that handling a large number of vectors will cause  
performance problems in the client's web browser - even with recent  
improvements in the javascript engines of all major browsers,  
javascript is still an interpreted language and thus somewhat slow.   
That being said, I would highly recommend that you actually try  
OpenLayers for vector editing in your use case before deciding that it  
won't work.  Do not rely entirely on the comments of others that you  
find in a quick web search, you will definitely be evaluating them out  
of context of the actual problems that were being described.

In practice, it is usually possible to minimize or avoid performance  
problems through careful planning and fine tuning your  
implementation.  You will need to spend time becoming familiar with  
OpenLayers and understanding how it works before you can decide if it  
is possible to produce a suitable solution for your use case.  Do not  
expect a quick and easy solution to this problem, though, and do not  
expect the community to do it for you.  The folks on this list (and  
the OpenLayers list) will certainly help out but in the end it will be  
you that needs to learn how to use the available tools and that will  
take time on your part.

Cheers

Paul

On 22-Jun-09, at 3:56 AM, sathishpsk9 wrote:

>
>
> Hi  Kenneth Skovhede,
>
>           Thanks for your reply.I learnt that OpenLayers doesnot  
> support
> large data.Thing is that i need a web editor . can we develop such  
> an editor
> using MapGuide ? Even if such thing is not available in mapguide  
> right now,
> i am ready add my efforts in this regard but  i am in fix where to  
> begin and
> how to begin ?
>
> Thanks & Regards,
> Satish
>
>
> -- 
> View this message in context: http://n2.nabble.com/Editing-tool-using-MapGuide-Open-Source-tp3131289p3131579.html
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>
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