stephen sefick wrote: > I followed the directions all set to srtm, computation region set to > resolution of the coarsest (they are all the same and 00:00:01). The > map is still coming out as 7 different solid color blocks. > You have set the region to include all tiles? You have zoomed to the current region? The patched DEM still ranges from 0-296 only and not from 9-800 (r.info -r)?
I've done that regularly with SRTM tiles and it worked, no problems (6.4.0RC5). > On Thu, Jul 9, 2009 at 12:58 PM, Markus > Metz<[email protected]> wrote: > >> stephen sefick wrote: >> >>> values range from ~-9 to ~800 there is a tile which has no elevation. >>> The patched dem only ranges from 0-296. This may be the problem. >>> >>> >> It seems that the current computational region did not include all tiles. >> Try setting the computational region to include all tiles with g.region >> rast=<all your tiles>. >> Check the resolution of each tile with r.info -s. If they are not all >> the same, use the coarsest resolution to be safe. >> Check the resolution of the computational region. It must be the same >> like the coarsest resolution, if not, set it to that. >> Set the same color rules for all tiles. Use srtm or etopo2 but not >> elevation because elevation will be different for each tile. >> Display all tiles, zoom to the computational region. >> Patch all tiles. >> Set the same color rules to the patched DEM like to the tiles. >> Add the patched DEM to the display, it should look like the previous >> display with all the tiles. >> >> Good luck, >> >> Markus M >> >> >> > > > > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
