Hi list,
i imported a DEM in GRASS from an ascii file(exportted from ARC).i had holes
in it...i filled the DEM with r.fillnulls....but I don't know how make the
filled DEM to look exactly like i was looking before filling it, meaning that
r.fillnuls produced a rectangular raster map where some areas where was no
data before appear as some blocks..i tried to create a MASK by renaming to
MASK a raster files obtained from coverting a shapefile representing the
boundary of my area but the result was the same...i don't know how to clip the
filled DEM to appear without those blocks...maybe you give me an idea...
thanks
___________________________
Cv-ul tau ia 500 euro/luna!
http://500.myjob.ro
Your question is a little unclear. If you want to look at the original dem, then you can still view that original dem.
d.rast map=original_rast
r.fillnulls fills in all null spaces, unless you have a mask. Perhaps you can make a mask using r.digit, and make a new raster that blocks out areas that you don't want r.fillnulls to work. Name this new rast MASK. Then run r.fillnulls again on the original raster after the mask has been set.
G'luck
-ian
On Jun 2, 2005, at 2:22 PM, Jano Ferencik wrote:
Hi list,
i imported a DEM in GRASS from an ascii file(exportted from ARC).i had holes
in it...i filled the DEM with r.fillnulls....but I don't know how make the
filled DEM to look exactly like i was looking before filling it, meaning that
r.fillnuls produced a rectangular raster map where some areas where was no
data before appear as some blocks..i tried to create a MASK by renaming to
MASK a raster files obtained from coverting a shapefile representing the
boundary of my area but the result was the same...i don't know how to clip the
filled DEM to appear without those blocks...maybe you give me an idea...
thanks
___________________________
Cv-ul tau ia 500 euro/luna!
http://500.myjob.ro