[postgis-users] Rasters

[Obe, Regina DND\MIS]

Interesting.  It looks like they have support in for PostGIS for their
latest version.  Would be interesting to see what they are doing with that

http://terralib.org/php/docs.php?body=DocsCentral

-----Original Message-----
From: Andre Cruvinel Resende [mailto:andrecruvinel at yahoo.com.br] 
Sent: Thursday, September 29, 2005 12:41 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] Rasters


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
> 



	



	
		
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