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
and watch the world go round - Rush | President OSGeo, http://osgeo.org
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