[mapguide-users] mapagent operation=QUERYMAPFEATURES

[Yewondwossen Assefa]

Thanks.  Small rectangle seems to do the trick with Intersects 
(EnvelopeIntersects does not seem to be supported).
I was kind of looking for low level support like a point query + 
tolerance but I can still simulate the tolerance in my application.

Best Regards,

Traian Stanev wrote:
> The input point is probably not *exactly* equal to the feature point and hence a point query with Intersects will not work. I would use a small rectangle query with the EnvelopeIntersects or Intersects operation. Note that by small rectangle, I don't mean a zero size rectangle, but something with width and height of say 1e-6 for example.
>  
> Traian
> 
> 	-----Original Message----- 
> 	From: Assefa Yewondwossen 
> 	Sent: Wed 8/9/2006 7:08 PM 
> 	To: users at mapguide.osgeo.org 
> 	Cc: 
> 	Subject: [mapguide-users] mapagent operation=QUERYMAPFEATURES
> 	
> 	
> 
> 	Hi There,
> 	
> 	  I am having trouble selecting elements on a point layer. Query looks
> 	something like this :
> 	
> 	
> 	....&operation=QUERYMAPFEATURES&geometry=POINT(663293.447226639%205431187.3623488685)&selectionVariant=INTERSECTS...
> 	
> 	  I have tried WITHIN for the selectionvariant with no success.
> 	  I have also tried a polygon geometry where the Min=Max with no success.
> 	  Note that using a polygon geometry around a point element selects the
> 	element as expected.
> 	
> 	  Any idea what I am doing wrong ?
> 	
> 	Thanks
> 	
> 	--
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> 	Assefa Yewondwossen
> 	Software Analyst
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> 	Email: assefa at dmsolutions.ca
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-- 
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Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
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