Il 20/04/2012 00:51, Pedro Venâncio ha scritto:
I thought a way to get around, which is to convert the contours to equally
spaced points and join these points whith the elevation points layer. Is
there a more correct and straightforward way to do?
your real data are vertices anyway, so I
On Thu, Apr 19, 2012 at 10:57 PM, Rich Shepard rshep...@appl-ecosys.com wrote:
On one project the r.stream.extract error, Accumulation map does not
match elevation map!, was caused by a mask on the elevation map. With this
project the mask was removed, and no longer limits the DEM region.
It
Another workaround. Don't know if that helps and never tried it out, but
my approach for inner offset would be a decomposition of the polygons:
v.type in=poly out=poly_as_line type=boundary,line
v.parallel
v.clean tool=break
v.type type=line,boundary
v.centroids
v.build
If you can not define
Hi,
I am working on a python script which involves a g.parser module (to get the
input mask for a module as for other modules in GRASS).
So far I know how a flag is produced in the beginning of the script.
E.g.:
#%Flag
#% key: f
#% description: My Flag of Interest
#%end
Is there any
Johannes Radinger wrote:
I am working on a python script which involves a g.parser module (to
get the input mask for a module as for other modules in GRASS).
So far I know how a flag is produced in the beginning of the script.
E.g.:
#%Flag
#% key: f
#% description: My Flag of Interest
Hi Pankaj,
What format are you exporting to? The vectors in india_basins_vector.png
look good.
Daniel
--
B.Sc. Daniel Lee
Geschäftsführung für Forschung und Entwicklung
ISIS - International Solar Information Solutions GbR
Vertreten durch: Daniel Lee, Nepomuk Reinhard und Nils Räder
I created this vector by r.to.vect command.
Then, I ran v.out.ogr.
And, thereafter I tried v.in.ogr. Which resulted in erroneous vector.
On Fri, Apr 20, 2012 at 4:31 PM, Daniel Lee l...@isi-solutions.org wrote:
Hi Pankaj,
What format are you exporting to? The vectors in
Thank you.
Good to know that, so that I'll do a reverse of the meaning
of the flag as you mentioned (...don't...).
cheers,
Johannes
Original-Nachricht
Datum: Fri, 20 Apr 2012 11:26:55 +0100
Von: Glynn Clements gl...@gclements.plus.com
An: Johannes Radinger jradin...@gmx.at
On Fri, 20 Apr 2012, Markus Metz wrote:
It is perfectly ok to set the region to a subregion of the DEM and to set
a MASK. These settings should not be modified, however. As long as
r.watershed and r.stream.extract are used on the same region settings and
the same MASK, the map mismatch error
On Fri, 20 Apr 2012, Markus Metz wrote:
g.region res=10m -a
r.resamp.stats in=dem_proj out=dem_10m method=average -w
What is the reason to run r.resamp.stats if the region's resolution has
been changed to that cell size?
Thanks,
Rich
___
On Fri, 20 Apr 2012, Markus Metz wrote:
The resolution has been decreased, in this case several of the original
cells fall into one new cell. A reasonably accurate new value can be
obtained by using the average of all cells falling into a new cell. If on
the contrary resolution is changed from
On Fri, 20 Apr 2012, Markus Metz wrote:
Try to set the region and MASK before the analysis, then don't modify
these settings during the analysis. Something like
g.region vect=basins align=dem_proj
g.region res=10m -a
r.resamp.stats in=dem_proj out=dem_10m method=average -w
v.to.rast in=basins
Thank you Paolo!
Best regards!
Pedro
- Original Message -
From: Paolo Cavallini
Il 20/04/2012 00:51, Pedro Venâncio ha scritto:
I thought a way to get around, which is to convert the contours to equally
spaced points and join these points whith the elevation points layer. Is
Hi all.
I wrote a shell-script module v.triangle that is front-end for the
famous Triangle utility (http://www.cs.cmu.edu/~quake/triangle.html) of
J.R. Shewchuk. I'm planning to add it to GRASS-Addons wiki page :)
Triangle makes exact Delaunay triangulations, constrained Delaunay
triangulations,
Hi,
I'm not sure to understand the difference between your v.triangle and the
v.delaunay (
http://grass.osgeo.org/grass64/manuals/html64_user/v.delaunay.html) already
in grass core ... for what I see in your pdf exemple, it seems that your
new module is giving almost the same result as v.delaunay
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