[fdo-dev] Semantic of ProcessSpatialCondition operation

[Traian Stanev]

FdoSpatialCondition supports any operation that is in the
FdoSpatialOperations enumeration, which are basically the 9 well known
simple feature operations plus a bbox operation. It depends on the
specific provider which ones of these are supported. Every FDO
connection exposes a FilterCapabilities object which lists all the
supported spatial operations.

Traian
 

-----Original Message-----
From: Mateusz Loskot [mailto:mateusz at loskot.net] 
Sent: Monday, August 14, 2006 12:01 AM
To: dev at fdo.osgeo.org
Subject: [fdo-dev] Semantic of ProcessSpatialCondition operation

Hi,

I analysed the code of
FdoRdbmsMySqlFilterProcessor::ProcessSpatialCondition() function, but
I'd like to get some confirmation.
Is my assumption correct that ProcessSpatialCondition() constructs
spatial filter based on geometry bounding box?
So, spatial filter is based on rectangular mask?

Does FDO supports spatial filter based on non-rectangular polygons?

Best regards
--
Mateusz Loskot
http://mateusz.loskot.net

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