On Mar 4, 2012, at 1:39 PM, Ed Linde wrote: > Thanks Yves, but my question still remains though. So in this raster of > 1200 x 1200 pixels, does each pixel get assigned an elevation in meters of > "x" meters? Or do the four corners of each pixel have different elevation > values of a,b,c and d meters each? > ..
I am guessing (albeit, based on my fiddling with SRTM a long time ago) that it is an ave value of "x" meters assigned to all the pixels in the tile. In essence, a 1200 pixel-square tile is behaving like a single large pixel with a value of "x" meters. Should be easy to confirm it by querying a few random pixels in a tile. -- Puneet Kishor _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
