[mapguide-users] POOL:DWF or AJAX

Andrew DeMerchant andrew.demerchant at gemtec.ca
Thu Sep 14 12:09:39 EDT 2006


Let's keep our fingers crossed!

Andrew

Jason Birch wrote:
> I haven't tested yet, but the MapGuide and FDO development projects 
> have been working on this pretty actively, setting up pooled FDO 
> connections and enhancing the ODBC provider.
>  
> I'll be interested to see whether the changes made for the 
> 1.0.2 release (which I'm guessing is the same as Enterprise 
> SP1) resolves these issues as well as the Oracle performance problems.
>  
> Jason
>
> ------------------------------------------------------------------------
> *From:* Andrew DeMerchant [mailto:andrew.demerchant at gemtec.ca]
> *Sent:* Thursday, September 14, 2006 06:10
> *To:* users at mapguide.osgeo.org
> *Subject:* Re: [mapguide-users] POOL:DWF or AJAX
>
> I can certainly vouch for that....for me, ODBC is pretty much useless 
> in AJAX because of the horrible speed. I had a few hundred 
> points.....it's still slow in DWF if you do things like filters and/or 
> themed layers., but it's at least useable.
>
> As for the OnSelect question, I have no idea. I'm not doing anything 
> like that....though, I may at some point, I have no need just yet.
>
> Andrew
>
> Ivan Miličević wrote:
>> I figured out that ODBC connection drasticly slow performance. In dwf that
>> difference is not so big.  I've tested on 50 points. Measured by feeling ;-)
>>
>>
>> I've restart OS every time after test so "feeling" is relevant.
>>
>> -----Original Message-----
>> From: Traian Stanev [mailto:traian.stanev at autodesk.com] 
>> Sent: 14. rujan 2006 14:46
>> To: users at mapguide.osgeo.org
>> Subject: RE: [mapguide-users] POOL:DWF or AJAX
>>
>>
>> As far as the "everything is selectable" argument, you need to take into
>> account the fact that if everything is selectable, it means ALL properties
>> for all features need to be included with the DWF that gets sent to the
>> client. They are all saved out in an XML file that is attached inside the
>> DWF package. So depending on how many features you have and the ratio of
>> viewing operations to selection operations the client is performing, the
>> bandwidth wasted by that DWF could be larger than sending over a simple PNG
>> and then processing a few mouse clicks on the server. So it's a double-edged
>> sword.
>>
>> Traian
>>  
>>
>> -----Original Message-----
>> From: Joel Carranza [mailto:jec at gatekeeper.com] 
>> Sent: Thursday, September 14, 2006 1:05 AM
>> To: users at mapguide.osgeo.org
>> Subject: Re: [mapguide-users] POOL:DWF or AJAX
>>
>>
>> AJAX viewer "bugless" ? That is a pretty bold claim :)
>>
>> While the "thinness" of the AJAX viewer certainly is appealing, I still get
>> a little uncomfortable everytime I think about the additional burden it puts
>> on the server in order to support selection and tooltips. We currently
>> author maps where almost everything is selectable, almost every feature has
>> a lengthy tooltip. In such an environment where users are doing alot of
>> object selection and tooltips, I just don't think the AJAX viewer will be
>> performant enough to satisfy our users moving from 6.5. I suspect alot of
>> people don't have this problem, but i'm just throwing my 2 cents in. 
>>
>> I'm a big fan of vector output, for a couple reasons:
>> a) potentially more compact in terms of map request download
>> b) ideal for "disconnected" applications (where network connectivity is not
>> always available)
>> c) absolutely necessary for printing
>> d) easier to port existing MapGuide 6.5 applications
>>
>> I would love to see vector output in a different format. The DWF viewer is a
>> major improvement over the MapGuide 6.5 viewer from our perspective because
>> its so much easier for us to customize for our own purposes. However,
>> deploying an ActiveX control is a big problem for alot of people. A java
>> viewer leveraging an open vector format would be way cool. I don't see any
>> reason why vector output should look worse than the raster output, although
>> I agree it does. (Why doesn't the DWF viewer do anti-aliasing?)
>>
>> Something else that would be way cool that neither viewer has: Selected
>> objects being drawn in something other than solid blue....
>>
>> Joel Carranza
>> Gatekeeper Systems
>>
>>
>> Ivan Miličević wrote:
>>   
>>> Wich one you prefer?
>>>
>>>  
>>>
>>> For me, AJAX is better one.
>>>
>>>  
>>>
>>> Ajax:
>>>
>>> -not needed plugin
>>>
>>> -working with lot's of browsers
>>>
>>> -visually looks better
>>>
>>> -buugless
>>>
>>> -more stable
>>>
>>>  
>>>
>>> DWF:
>>>
>>> -faster
>>>
>>> -better zooming, paning
>>>
>>>  
>>>
>>> Let's exchange expirience :-)
>>>
>>> --------------------
>>> Ivan Miličević, voditelj razvoja
>>> iNEO d.o.o. 
>>> 091 502 9672
>>>
>>>  
>>>
>>>
>>>
>>>     
>>
>> --
>> View this message in context:
>> http://www.nabble.com/POOL%3ADWF-or-AJAX-tf2268101.html#a6299527
>> Sent from the OSGeo MapGuide forum at Nabble.com.
>>
>>
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>>
>>
>>
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>>
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>>
>>
>>   
>
> -- 
> 	*Andrew DeMerchant*
> *Computer Technologist*
> ph.1-877-4GEMTEC x.163
> fax 506-453-9470
>
> /GEMTEC Limited <http://www.gemtec.ca>
> /191 Doak Road
> Fredericton, NB, Canada
> E3C 2E6
>

-- 
	*Andrew DeMerchant*
*Computer Technologist*
ph.1-877-4GEMTEC x.163
fax 506-453-9470

/GEMTEC Limited <http://www.gemtec.ca>
/191 Doak Road
Fredericton, NB, Canada
E3C 2E6

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