Hi list
Im trying to use the r.out.ascii command but it fails
Got an existing mapset, with some elevation rasters in it (.tiff converted
in grass raster)
I'd like to extract the xyz values of a DEM to txt file
I use this syntax in the grass shell:
[code]
r.out.ascii input=mnt output=testmnt.txt
[/code]
testmnt.txt is created and the header is written,but the x,y,z values are
missing, only stars appear in it, like this:
[code]
north: 2787570
south: 1546950
east: 1284500
west: -47544.1
rows: 931
cols: 999
* * * * * * * * * * * * *
* * * * * * * * * * * * *
* * * * * * * * * * * * *
[/code]
Is anybody understands what happens?
Does a r.out.xyz command exist? or any other way to get x,y,z values from a
raster?
Im trying to use the r.out.ascii command but it fails
Got an existing mapset, with some elevation rasters in it (.tiff
converted in grass raster)
I'd like to extract the xyz values of a DEM to txt file
I use this syntax in the grass shell:
[code]
r.out.ascii input=mnt output=testmnt.txt
[/code]
testmnt.txt is created and the header is written,but the x,y,z values
are
missing, only stars appear in it, like this:
[code]
north: 2787570
south: 1546950
east: 1284500
west: -47544.1
rows: 931
cols: 999
* * * * * * * * * * * * *
* * * * * * * * * * * * *
* * * * * * * * * * * * *
[/code]
Is anybody understands what happens?
r.out.ascii exports a rectangular array of values (like for a
spreadsheet with x & y axes), in your above example 931x999 cells. The
"*"s represent NULL data.
Raster ops. work on the current zoom region. see the g.region module.
e.g. set to the region to the exact extent of the raster map with:
g.region rast=mnt
Does a r.out.xyz command exist? or any other way to get x,y,z values
from a raster?