Heya, Okay, you bet; raster format. What's the best way to store raster information, though? In tiles stored as geoindexed blobs in a database table, loaded on a per-tile basis? Is there some sort of well-establishes system for storing and querying grid information, like there is for geographical vector shapes?
-B On Dec 2, 2007 4:58 PM, Frank Warmerdam <[EMAIL PROTECTED]> wrote: > Brandon Martin-Anderson wrote: > > Hey Wankers, > > > > What's your favorite way to (efficiently) store and (quickly) query > > (very) large amounts of elevation data? > > > > Right off the top of my head, one way is to store elevation profiles as > > 3D lines in postgis, but that strikes me as kludgey. How would you do > it? > > Brandon, > > Are you working with gridded elevation data? If so, is there a reason not > to hold it in the obvious format, a raster file of some sort? The > organization of the raster data can be optimized for various sorts of > query > patterns (points, windows at varied resolutions, etc). > > Best regards, > -- > > ---------------------------------------+-------------------------------------- > I set the clouds in motion - turn up | Frank Warmerdam, > [EMAIL PROTECTED] > light and sound - activate the windows | > http://pobox.com/~warmerdam<http://pobox.com/%7Ewarmerdam> > and watch the world go round - Rush | President OSGeo, http://osgeo.org > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking >
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