[GRASS-user] r.carve help

Stephen_Sefick1 · September 21, 2010, 2:35pm

I would like to reinforce a DEM with the nhd flow lines, but only at
road crossings. I have isolated an area and set the computational
region to this. I have run:

r.carve --overwrite rast=master_mbhw_mb_6@PERMANENT
vect=srs_nhd_flowlines_2010@PERMANENT output=mb_conditioned width=1
depth=10

in grass 6.4svn (last week) on a 1m DEM and there is no difference in
the output and the original (r.mapcalc difference map). What should I
look at?

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.

                            \-K\. Mullis

"A big computer, a complex algorithm and a long time does not equal science."

                          \-Robert Gentleman

Stephen_Sefick1 · September 21, 2010, 3:24pm

I increased the region setting and everything worked fine. Thanks for
your time.

Stephen

On Tue, Sep 21, 2010 at 9:35 AM, stephen sefick <ssefick@gmail.com> wrote:

I would like to reinforce a DEM with the nhd flow lines, but only at
road crossings. I have isolated an area and set the computational
region to this. I have run:

r.carve --overwrite rast=master_mbhw_mb_6@PERMANENT
vect=srs_nhd_flowlines_2010@PERMANENT output=mb_conditioned width=1
depth=10

in grass 6.4svn (last week) on a 1m DEM and there is no difference in
the output and the original (r.mapcalc difference map). What should I
look at?

--
Stephen Sefick
____________________________________
| Auburn University |
| Department of Biological Sciences |
| 331 Funchess Hall |
| Auburn, Alabama |
| 36849 |
|___________________________________|
| sas0025@auburn.edu |
| http://www.auburn.edu/~sas0025 |
|___________________________________|

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.
                            \-K\. Mullis
"A big computer, a complex algorithm and a long time does not equal science."
                          \-Robert Gentleman

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.

                            \-K\. Mullis

"A big computer, a complex algorithm and a long time does not equal science."

                          \-Robert Gentleman