[postgis-users] Rasters

[Andre Cruvinel Resende]

Hello...

Paul.. it´s not a direct answer for your questions but...
could help to clarify somethings.

I know that terralib can store and manipulate raster data
in normal database (even mdb´s) and spatial database too.

http://terralib.org/ (All in English)

We could take a look to how terralib team implement raster
objetcs inside RDBMS, and see what could be used in
PostGIS.

The basic class is "TeRaster" 

http://terralib.dpi.inpe.br/html/rv/classTeRaster.html 

These book explain more about that, but actualy just in
portuguese, i heard that some one was translating to 
english, but i can´t remember who. But some exemples are
easy to understand (because all code is in English).

http://www.dpi.inpe.br/livros/bdados/

These chapter is about how they deal whit raster data.
http://www.dpi.inpe.br/livros/bdados/cap13.pdf

Well.. i´m not from terralib team and probaly will don´t
know the ansewers of some questions that could apper, so if
you what you can talk with them at: 

http://phorum.dpi.inpe.br/index.php?49

My 2$ . :-)

André Cruvinel
 
--- Paul Ramsey <pramsey at refractions.net> escreveu:

> OK, raster people.  My problem is that I cannot envision
> the use  
> cases for raster in the database, so, make it easy for
> me! :)
> 
> - What is the atomic unit of storage for rasters in the
> database?  Is  
> it complete scenes?  Something else?
> - What is some SQL I would apply against my raster
> tables?  Make up  
> some descriptive function names and show me some example
> SQL and tell  
> me what it does.
> - How do vector data and raster data interact?  Note the
> atomicity  
> question above.
> 
> P.
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
>
http://postgis.refractions.net/mailman/listinfo/postgis-users
> 



	



	
		
_______________________________________________________ 
Novo Yahoo! Messenger com voz: ligações, Yahoo! Avatars, novos emoticons e muito mais. Instale agora! 
www.yahoo.com.br/messenger/