2008/12/5 Micha Silver [EMAIL PROTECTED]:
georgew wrote:
Much progress!
My only remaining question is: Is there a way to use the track raster file
to input the values instead of using the mouse, so that the process can be
more or less automated? Thank you all for your great help. I'll write
Much progress!
Micha Silver wrote:
Set resolution to 10m. X 10m. with
g.region -s -p res=10
Hamish_b wrote:
Multiple displays would need multiple
WIND files but the processing module (eg v.to.rast) wouldn't know which
was the appropriate one to use. Thus computational region refers
Hello Georg,
first - I suggest You to get a copy of GRASS book. It's really good
reading for beginner.
Second - as I noted, v.profile is a new GRASS Add-on [1]. You can
compile it from source only. It requires GRASS 6.4 or 7 (both
unreleased). v.profile README file contains short note how to
Thanks Micha, here we go:
Micha Silver wrote:
How many shapefiles did you have in the GRASSDATA directory?
I had the two shapefiles, Contour and Track, but I got your message loud and
clear about creating separate vectors, which I did and displayed as follows:
v.in.ogr -o
Hamish, please forgive my ignorance but I am not sure what you mean. As far
as I know g.region is the means to change the resolution, whether through
the command line or the GUI. Can you please explain how to access and change
the computational region settings.
hamish_b wrote:
[please don't
Micha, I followed your instructions with the following results:
Import data from 2 shapefiles, Contour (layer 1)and Track (layer 2): (no
problems reported)
v.in.ogr dsn=/home/george/GRASSDATA/ output=testvectmap min_area=0.0001
snap=-1
Display vector map: (no problems, map displayes
Dylan, using v.surf.rst gives me Segmentation fault, using:
v.surf.rst [EMAIL PROTECTED] layer=1 zcolumn=ELEVATION
elev=kahu-surf-rast tension=40. segmax=40 npmin=300 dmin=168.547850
dmax=842.739250 zmult=1.0 --overwrite
I am on GRASS 6.3, Ubuntu 8.04, AMD64
Any suggestions please?
Maris, I
You can also take a look at new vector addon module v.profile. It will
give Your track intersections with contour lines or any other
points/lines. Currently it has limitation - Your track has to be a
single vector line. You can also combine r.profile and v.profile to
create better track profiles
What, no takers? Just a Yes or No will be already of great help to me,
anything more, like some hint on a possible solution would be cream on top.
Thanks all the same for reading this.
George
georgew wrote:
Hi, I am totally new to GRASS and overwhelmed by its scope and not sure
whether the
Dude- It is saturday night. Your request is for a fairly simple
operation, but there are several steps.
Some hints:
1. convert your contours into a DEM:
v.surf.rst
2. sample the elevation model along your line segments:
v.to.db
v.drape
you may need to densify the line segments-- i.e. add more
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