Hi,
I've created subcatchments using r.watershed and I would like to
convert these to polygons. My result at the moment contains too many
polygons - 194. The original raster had only 9 areas, which should all
have been contiguous seeing that they came from r.watershed.
Here is the sequence of
You might consider using -s flag to smooth the corners.
Otherwise, I can't see why it doesn't work.
R.
Sab
Hi,
I've created subcatchments using r.watershed and I would like to
convert these to polygons. My result at the moment contains too many
polygons - 194. The original raster had only 9
On 09/29/2010 02:11 PM, Hanlie Pretorius wrote:
Hi,
I've created subcatchments using r.watershed and I would like to
convert these to polygons. My result at the moment contains too many
polygons - 194. The original raster had only 9 areas, which should all
have been contiguous seeing that they
Hanlie Pretoriuswrote:
Hi,
I've created subcatchments using r.watershed and I would like to
convert these to polygons. My result at the moment contains too many
polygons - 194. The original raster had only 9 areas, which should all
have been contiguous seeing that they came from r.watershed.
2010/9/29, Markus Metz markus.metz.gisw...@googlemail.com:
In GRASS, you have full control of the computational region,
consequently you must be able to explain (to the client/supervisor)
every aspect of the computational region. Why is the horizontal
resolution not only slightly off from
Hanlie Pretorius wrote:
I don't really know why the
resolution in the x and y directions are not the same. Even when I set
them explicitly, I get a slight difference:
The -a flag is missing, see my previous post.
-
g.region -p vect=c83a_bor...@permanent nsres=25 ewres=25
projection: 99
Hello. I need to learn how to use GIS and I have chosen to do it with GRASS.
My plan is to learn GIS/GRASS essentials during the next 12 months and start
applying it for my research the 12 months after that. I have started reading
the documentation available and playing with the sample data set.
How to use openstreetmap data in GRASS GIS. In QGIS I have OSM plugin which
allows to download, modify and upload of data. data can be editted offline
and save changes back to OSM server. How to do these operation using GRASS
GIS. sorry for cross posting
--
Rashad
Hello. I need to learn how to use GIS and I have chosen to do it with GRASS.
My plan is to learn GIS/GRASS essentials during the next 12 months and start
applying it for my research the 12 months after that. I started reading the
available documentation and also started playing with the sample
On 09/29/2010 06:12 PM, Mario Julio Barragan Arce wrote:
Hello. I need to learn how to use GIS and I have chosen to do it with
GRASS. My plan is to learn GIS/GRASS essentials during the next 12
months and start applying it for my
Welcome, and good decision.
research the 12 months after that.
Greetings
I have a script where I need to define a region based on 2 rasters output[0]
and output[1].
I'm using thwe following expression:
grass.run_command(g.region, rast = output[2] output[3], res= t_srx)
But This is not correct. my question is how can I have both rasters without
getting an
On Wed, Sep 29, 2010 at 6:20 PM, Mario Julio Barragan Arce
mariojulio.barra...@upr.edu wrote:
Hello. I need to learn how to use GIS and I have chosen to do it with GRASS.
Welcome here!
My plan is to learn GIS/GRASS essentials during the next 12 months and start
applying it for my research the
Luis Lisboa wrote:
I have a script where I need to define a region based on 2 rasters output[0]
and output[1].
I'm using thwe following expression:
grass.run_command(g.region, rast = output[2] output[3], res= t_srx)
But This is not correct. my question is how can I have both rasters
Hi,
I am revisiting a previous script I made in producing
Multidirectional, oblique-weighted, shaded-relief. ArcGis has this
script:
http://blogs.esri.com/Support/blogs/mappingcenter/archive/2008/10/07/updated-hillshade-toolbox.aspx
The commads in ARC 6.0.1 GRID by Rober Mark (USGS) are as
14 matches
Mail list logo