I understand that GEOS and Shapely don't care about coordinate  
systems, and that's not an oversight.  I meant the fact that the GEOS  
slot for SRID (which is part of the standard for geometries) is not  
exposed in Shapely.  At some point, someone may care about the SRID of  
the data and want to do something with it...

Doug

On Jun 11, 2009, at 9:23 PM, Sean Gillies wrote:

> Not an oversight. Like you said, GEOS doesn't understand coordinate
> systems. It is only concerned with planar geometry. Shapely, likewise.
> Coordinate systems are (IMO) a concern of features and layers (or
> feature collections).
>
> Sean
>
>
> On Jun 11, 2009, at 12:59 PM, Douglas Mayle wrote:
>
>> Hello everybody...
>>      After talking with Paul Ramsey, I understand the GEOS, the c library
>> behind Shapely has an SRID slot for the geometry object.  It doesn't
>> know enough to do anything with it, but at least you can track the
>> SRID of the object you're working with.  This doesn't seem to be
>> exposed in Shapely.  Of course there's no problem in simply adding an
>> attribute (yay python!), but I was wondering if this was a simple
>> oversight?
>>
>> Thanks,
>> Douglas Mayle
>> _______________________________________________
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>
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