[udig-devel] CRS not recognized in customized dataStore

[Theodor Foerster]

Ok, that does make sense. I set a breakpoint at getFeatureReader().
However, when I select a CRS on the map, which is different from the
original source layer of the datastore getCoordinateSystemReproject()
still returns null. That is a bit strange.

I am currently using RC 14.

	Theodor

> -----Original Message-----
> From: udig-devel-bounces at lists.refractions.net 
> [mailto:udig-devel-bounces at lists.refractions.net] On Behalf 
> Of Jody Garnett
> Sent: Tuesday, April 29, 2008 6:45 PM
> To: User-friendly Desktop Internet GIS
> Subject: Re: [udig-devel] CRS not recognized in customized dataStore
> 
> Theodor Foerster wrote:
> > Actually, the dataStore I am using, does not check or transform the 
> > features according to a query or CRS. So where should I do 
> that? Do I 
> > have to transform the features, when next() is called? By now, I 
> > always thought, that udig/geotools takes care of this 
> transformation 
> > issue. I might have been wrong there.
> >
> >   
> The DataStore implementor does; GeoTools provides a 
> ReprojectingFeatureCollection that can be "wrapped"
> your raw result. But actully checking the Query and applying 
> the ReprojectingFeatureCollection is up to the DataStore 
> implementor....
> 
> Why is it this way? Because some DataStores have their own 
> facilities for reprojection - the datastore implementor is in 
> the best position to make the judgment call about what to do.
> 
> The AbstractDataStore (and possibly the JDBCDataStore class) 
> abstract super class has some support for this already, but 
> you should do a check about what is happening ...
> 
> Jody
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