[Geotools-devel] Questions about DataSource and CoordinateSystem

[Cameron S. <csh...@bi...>]

I'm looking at refactoring Extent and have noticed that DataSource does not 
seem to have a get/setCoordinateSystem.

From a MapViewer, how can you mix DataSources with different 
Status: O

CoordinateSystems?
I assume we need an extra method in DataSource.  Either:

dataSource.getFeatues(Envelope, DataSource)

or

cs=dataSource.getCoordinateSystem();
newEnvelope=cs.translateTo(coordSystemID);
dataSource.getFeatures(newEnvelope);

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Another issue.  There is an interface DataSource, but not a DefaultDataSource 
which is extended by all other DataSources.  A DefaultDataSource would be 
very useful so that I could just add a new method:
dataSource.getFeatures(Envelope);
and
DataSource.getFeatures(Filter,CoordinateSystem);

What do others think?

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On another note, I'm on holidays for a week.  I'll be travelling around with 
my laptop and intend to check emails occasionally, but may be a bit slow to 
respond.
I hope to be at the next IRC meeting.

-- 
Cameron Shorter              http://cameron.shorter.net
Open Source Developer        http://mapbuilder.sourceforge.net
Senior Software Engineer http://www.adi-limited.com/