I believe that MFD in r.watershed is in versions 6.5 and up.
Mark
On Fri, May 21, 2010 at 7:27 AM, Kristian Foerster k.foers...@tu-bs.de wrote:
Hi,
I am using GRASS 6.4.0RC5+39438 (downloaded from svn server). I would like
to obtain basins and stream segments from digital elevation data
r.gwflow can help with the groundwater flow.
The r.watershed module can help with where streams in basins originate
and go to the outlet. The add-on of r.stream.extract can use
weighting parameters to adjust where the streams start (eg. increase
accumulation in wet areas, decrease accumulation
How about v.what.rast ?
Mark
On Thu, Apr 22, 2010 at 9:39 AM, Sofina Natalia nsof...@gmx.de wrote:
Hello everybody !
I would like to compare values for raster and vector points at positions of
vector points. Raster is filtered with edge detection function. And as
compared value is
For a simulation of a rain event, r.sim.water is pretty advanced.
To extract hydrologic features from a raster DEM, there are quite a
few tools under Raster--Hydrologic Modeling. The Watershed Analysis
(r.watershed) provides a lot of useful outputs.
Also, the r.streams.* suite of tools are
Using tcltk interface, there is a button/dropdown Set computational
region extents to match display in the Map Display.
What is the comparable command line syntax, and how to set this using
the wxpython GUI?
Thanks...
Mark
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grass-user mailing list
Are you using v.in.ogr? If so, are you pointing the 'OGR datasource name'
to the .shp file?
Mark
On Thu, Apr 8, 2010 at 7:59 AM, Nadine Jeschke blauba...@gmx.de wrote:
Hi to everyone!
I´m working with grass 6.3.0 on a ibook and I´d like to import some files
with .shp and .dbf format but I
. The report says the
projection of the dataset ist not identical with the projection of the
location
Do I have to install GDAL first??? That´s what I found at this page:
http://grass.itc.it/grass62/manuals/html62_user/v.in.ogr.html
Nadine
Am 08.04.2010 um 14:27 schrieb M S:
Are you using
Just installed updated 6.5svn, and the -e option is indeed present.
Thanks for the help.
Mark
On Tue, Apr 6, 2010 at 10:36 AM, Markus Neteler nete...@osgeo.org wrote:
On Tue, Apr 6, 2010 at 4:26 PM, M S msei...@gmail.com wrote:
I'll try updating. It looks like it was installed around
The online documentation for v.lidar.edgedetection show's an -e option to
get an estimate of point density (
http://grass.itc.it/grass65/manuals/html65_user/v.lidar.edgedetection.html).
In the GUI I don't see the -e option, and when entered at command line it is
not recognized.
If this option was
I'll try updating. It looks like it was installed around February 11.
Much thanks,
Mark
On Tue, Apr 6, 2010 at 10:17 AM, Markus Neteler nete...@osgeo.org wrote:
On Tue, Apr 6, 2010 at 3:32 PM, M S msei...@gmail.com wrote:
The online documentation for v.lidar.edgedetection show's an -e
How about r.out.tiff?
Mark
On Fri, Apr 2, 2010 at 11:00 AM, William Hudspeth bhudsp...@edac.unm.eduwrote:
Hello,
I am using GRASS 6.4~rc5-2 on Ubuntu 9.10. I am trying to export a DCELL
raster map to both a byte formatted and a UInt16 formatted Geotiff file.
The UInt16 formatted file shows
(answering self)
v.to.points seems to be a nice solution, as going from 3D line to raster,
and capturing Z of line didnt output raster features.
Data went from 3D lines, to 3D points (verticies), to raster with Z.
On Mon, Mar 29, 2010 at 12:15 PM, M S msei...@gmail.com wrote:
Should v.to.rast
Should v.to.rast be able to take a 3D line, and convert to raster with
applicable Z values brought over?
This command:
v.to.rast input=lin...@permanent output=line3d use=z type=line layer=1
rows=4096 --overwrite
outputs this:
Loading data...
Reading features...
Writing raster map...
Converted
Since now a vector, can you select and delete those extraneous blocks?
Mark
On Mon, Feb 22, 2010 at 3:14 PM, Rich Shepard rshep...@appl-ecosys.com wrote:
I've done something incorrectly but cannot find what that is.
Ran r.water.outlet and produced the output basin map. Then I applied
I haven't, but will. Much thanks!
Mark
On Wed, Feb 10, 2010 at 11:00 AM, Markus Metz
markus.metz.gisw...@googlemail.com wrote:
M S wrote:
I can launch r.terraflow in GRASS 6.4, but not in 6.5. (on kubuntu
9.10). 6.4 came from ubuntuGIS, which seems fine, however, 6.5 was
compiled from
Perfect. Setting the bad point null, and exporting without table or
topology (3D) proved to be the fastest solution. Thanks for the
suggestion.
Much thanks,
Mark
On Fri, Feb 5, 2010 at 2:27 AM, Hamish hamis...@yahoo.com wrote:
Mark:
I have a bunch of points (4+ million) with one outlier
I have a bunch of points (4+ million) with one outlier that needs
removed. I created a vector points file by using r.to.vect to create
a vector points file and associated table in sqlite.
When I run v.extract (v.extract -r input=points...@permanent
output=pointsfixed type=point layer=1
In GRASS 6.3 there was an output vector map option outwalk for
walkers in r.sim.water.
http://grass.itc.it/grass63/manuals/html63_user/r.sim.water.html
In GRASS 6.4 and 6.5, that output option seems to have gone away.
http://grass.itc.it/grass64/manuals/html64_user/r.sim.water.html
What does 'db.connect -p' show?
Mark
On Tue, Jan 26, 2010 at 9:02 AM, Rebecca Bennett rabenn...@ymail.com wrote:
Dear Sela,
Thank you for your advice. I have re-run the import having corrected the
format as you suggest, using the command below:
v.in.ascii -z -n
Looking at mine, the only difference I see is that the name of the
database is missing a .db extension. Please let me know if that
makes a difference.
Mark
On Tue, Jan 26, 2010 at 9:09 AM, Rebecca Bennett rabenn...@ymail.com wrote:
Hi Mark
db.connect -p shows
driver:sqlite
Lubica:
Googling shows there are binary GRASS packages for Suse 11.0. Are
they visible in your repo(s)?
I'm not familiar with the Suse distro enough to give specific package
management tools.
Mark
On Tue, Jan 12, 2010 at 9:41 AM, Rich Shepard rshep...@appl-ecosys.com wrote:
On Tue, 12 Jan
Great updates to already great modules. Thanks for the contribution.
I will likely be compiling these in the upcoming week(s).
Mark
2010/1/5 Jarosław Jasiewicz jar...@amu.edu.pl:
Hi all!
A have made major update with r.stream.order and r.stream.basins:
r.stream.order new functionality:
-
Kubuntu 9.10 64bit, using GRASS 6.5.
I ran v.breach on a stream network extracted with r.stream.extract.
It runs through the program, and puts up an error dialogue at
v.parallel. Attached is the log file. It looks like a negative
number is being passed to v.parallel. I saw in the documentation
Luis:
I noticed you mentioned you had run it with sqlite and dbf database
drivers. Mine is mapped to sqlite currently. I see some v.to.db
commands in the script, but do I understand correctly that you didnt
have issues using sqlite as backend?
Thanks,
Mark
2009/12/14 Luís Ferreira
Another module that might be applicable is r.sim.water
http://grass.itc.it/grass65/manuals/html65_user/r.sim.water.html
Mark
On Fri, Dec 11, 2009 at 1:44 PM, Joop Goedbloed jlgoedbl...@hetnet.nl wrote:
Hi Users on the list
To trace back the overland flood mechanism in (sub)urban area I've
I downloaded all the grass-addons, and didnt seen v.breach in the
directory. I also tried to download it as a specific module and I get
a message saying it doesnt exist.
svn checkout https://svn.osgeo.org/grass/grass-addons/v.breach
grass-addons/v.breach
yields...
svn: URL
Kind of a odd solution, but would it be possible to use the outputs of
r.param.scale to get the classed areas (i.e., peaks, pits, passes,
valleys) and then recode them as their opposite?
Alternatively, using r.mapcalc, can you multiply all the values by -1?
Mark
On Sat, Nov 21, 2009 at 9:01 AM,
Thank you for the info. I wound up installing GRASS65 and using MFD
in r.watershed. I was looking to those scripts to use MFD in GRASS64.
So, in short, I'm good to go.
Much thanks,
Mark
On Wed, Nov 18, 2009 at 4:52 AM, Hamish hamis...@yahoo.com wrote:
Mark:
I'm looking to use the addon
r.water.outlet works well for that.
Mark
On Wed, Nov 18, 2009 at 3:41 PM, stephen sefick ssef...@gmail.com wrote:
I have sampling locations that are located along streams. I would
like to generate watersheds above a particular sampling location. How
can I do this in GRASS, easily? I have
I'm looking to use the addon scripts r.dominant_dir.m and
r.calc_terraflow_dir.m, however, I have never used Matlab or Freemat.
I looked around for some examples or documentation on how to run these
scripts for (in?) GRASS, but have not found anything helpful.
Can someone point me to a good
As an output from r.streams.extract, I'm getting a stream direction
map that is only along the stream network, and null everywhere else.
From the manual, it seems the direction map needs to be for the entire
study area. I am looking to feed the streams and direction map into
the r.stream.basins
Thanks, I'll give it a shot.
Mark
2009/11/16 Markus Metz markus.metz.gisw...@googlemail.com:
Jarosław Jasiewicz wrote:
M S pisze:
As an output from r.streams.extract, I'm getting a stream direction
map that is only along the stream network, and null everywhere else.
From the manual
I have a DEM, a drainage and a Cover mapa, and I need to
estimate - for ANY pixel of my drainage - what is the
amount of my cover classes that contribute (or are upstream)
of that pixel.
I'm not sure what is meant by 'for any pixel of my drainage', however,
r.water.outlet will calculate a
That sounds similar to what I had to do with a custom Albers
projection for Florida. If I recall correctly, I was able to use the
custom parameters from the E$RI definition, and make the same custom
projection in GRASS to work with the data.
Mark
On Sat, Nov 14, 2009 at 6:42 PM, Rich Shepard
, 14 Nov 2009, M S wrote:
That sounds similar to what I had to do with a custom Albers projection
for Florida. If I recall correctly, I was able to use the custom
parameters from the E$RI definition, and make the same custom projection
in GRASS to work with the data.
Mark,
So, it may
... But, I cannot import
them into an existing location/map set
Is there an error or problem? Or am I missing something obvious?
Mark
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grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user
Great module! I like the optional parameters to tweak the stream
extraction. In my current situation, I have 20,000 acres modeled with
a 25ft cell DEM from relatively dense LiDAR data. The project area is
very flat and has many wetlands. The elevation range for the 20K
acres is only 30 to 170
You may find it easier to use the EPSG codes button, and pick the
code to match your projection/coordinate system.
There is the epsg and esri projection files. In Karmic Koaloa
Kubuntu, they reside in /usr/share/proj/
Mark
On Fri, Nov 13, 2009 at 1:16 PM, Rich Shepard rshep...@appl-ecosys.com
] Error 2
On Thu, Nov 12, 2009 at 10:32 AM, Glynn Clements
gl...@gclements.plus.com wrote:
M S wrote:
I'm on Kubuntu 9.10, using both 32 and 64 bit systems. This output is
from 32bit. It is GRASS 6.4 RC5. Seems to be the same logged issue
of defaulting to /build rather than /var/lib/grass64
I've imported arc/info GRIDs before, but from .e00 files, or more
recently the exports from the arctoolbox as .txt files, which are
ascii files. I believe the files listed below are binary arc/info
GRID files.
Given the excerpt from the r.in.arc manpage, it seems to need an ascii file. (?)
Perhaps this can help.
http://grass.osgeo.org/grass64/manuals/html64_user/r.in.gdal.html
Mark
On Wed, Nov 11, 2009 at 2:14 PM, Rich Shepard rshep...@appl-ecosys.com wrote:
I have files for 10M DEM in ARC/Info grid format that I want to use within
GRASS-6.4.0RC5. I read the man page, but do
It appears so. I'm going to look at the posts and see if I can get
mine to work.
Thanks,
Mark
On Tue, Nov 3, 2009 at 7:38 AM, Markus Neteler nete...@osgeo.org wrote:
On Tue, Nov 3, 2009 at 1:32 PM, M S msei...@gmail.com wrote:
I just installed from ubuntugis, and the package is
grass_6.4.0
:
On Tue, Nov 3, 2009 at 1:32 PM, M S msei...@gmail.com wrote:
I just installed from ubuntugis, and the package is
grass_6.4.0~rc5-3~karmic1_amd64.deb, which I presume to be 64bit.
I have problems compiling addons (using ubuntugis).
Perhaps you are hit by this one:
http://trac.osgeo.org/grass
I'll try some things and report findings. With some guidance from a
'make guru', I'm would think this could be resolved.
Thanks,
Mark
On Tue, Nov 10, 2009 at 3:33 PM, Markus Neteler nete...@osgeo.org wrote:
Mark,
On Tue, Nov 10, 2009 at 2:24 PM, M S msei...@gmail.com wrote:
Markus,
Based
I just installed from ubuntugis, and the package is
grass_6.4.0~rc5-3~karmic1_amd64.deb, which I presume to be 64bit.
I have problems compiling addons (using ubuntugis).
Mark
On Sat, Oct 24, 2009 at 7:17 PM, Horacio Samaniego
horacio.samani...@gmail.com wrote:
At this point I'm not sure... but
Greetings All.
I have downloaded the GRASS addons, and am working on installing them.
I've used this instruction set--
http://grass.osgeo.org/wiki/Compile_and_Install#Addons
I have installed GRASS 6.4RC5 binary and grass-dev package on Ubuntu
Karmic Koala, from the ubuntugis repo.
I'm trying
If you query two adjacent polygons, do they both have the same value
for the 'diss' attribute?
On Tue, Oct 20, 2009 at 7:05 PM, Roger André ran...@gmail.com wrote:
Yeah, kinda long, but here it is. fwiw, I loaded the file into
PostGIS and let it crank away at the dissolve. Was done after
Upon first glance, r.basins.fill seems like a great tool to generate
subbasins within a watershed. Although I must not be understanding
something obvious and essential.
If one has to digitize in the internal ridges in a given watershed,
why run the ridge input through the module if one has
Greetings,
I have searched the manuals, and have not found a direct tool. The
objective would be to output unique point ID's with corresponding
elevations. Is there a tool which would provide for one to attach raster
(elevation) values to vector points?
If no tool, would this be the most
Yikes that was fast! Not sure how I missed that one.
Much thanks.
Mark
On Tue, Sep 1, 2009 at 11:05 AM, Marco Lechner - FOSSGIS e.V.
marco.lech...@fossgis.de wrote:
http://grass.itc.it/grass62/manuals/html62_user/v.what.rast.html
M S schrieb:
Greetings,
I have searched the manuals
Excellent! Those are fantastic. Thanks for the contribution. We are working
on some stream assessments, and I hope to be able to get time to try these
modules. I will be sure to provide feedback.
Great stuff!
Mark
2009/8/27 Jarek Jasiewicz jar...@amu.edu.pl
Dear grass users!
I present
Greetings All:
How would one read the vector maps in a current mapset into a file, or a
list in an array (using python)? If I do 'g.list vect walker.list', the
list is not in one column and seems to be separated by tabs, with 4 columns
and a bunch of rows of vector files. Would a simple
Most excellent. Thanks to both for the help. Great wiki page too.
Mark
On Thu, Aug 20, 2009 at 12:29 PM, Milton Cezar Ribeiro
miltinho.astrona...@gmail.com wrote:
It is amazing!!!
Thanks hamish!
milton
2009/8/20 Hamish hamis...@yahoo.com
Mark:
If I do 'g.list vect walker.list',
There is a great suite of lidar tools in GRASS. One that might target your
needs is
http://grass.itc.it/grass64/manuals/html64_user/v.lidar.edgedetection.html
On Thu, Jun 4, 2009 at 3:03 PM, Shaun Melissa Busler busl...@gmail.comwrote:
I was wondering if anyone has tried to extract building
The software can be used for commercial use.
Both raster and vector data can be exported to shapefiles, which can be read
by nearly all GISs. One can use native GRASS vectors and rasters for
cartography in GRASS, or the Quantum GIS software to make end product maps
with native GRASS datasets.
I just started using the python interface with GRASS (6.3), where I have
typically used the older interface.
I ran r.contour. I wanted to re-run it, but change the input/output names.
I noticed two things, and was wondering if they are intentional. This
behavior was not present in the previous
You're on the right track. If you have obtained a an ESRI GRID representing
a DEM in an e00 format, then with GDAL and/or GRASS you can convert from
ESRI GRID (e00) to USGS DEM format, with the workflow Hamish outlined
previously.
ESRI data is in binary raster/vector formats when ESRI software
this wiki has been quite helpful, as well as the link in it for working with
contours. http://grass.osgeo.org/wiki/RST_Spline_Surfaces#Troubleshooting
I'm not sure I understand where this is to make the change for MAXPOINTS?
In the v.surf.rst/v.vol.rst, there is a MAXPOINTS value defined
I found this link from the GRASS wiki to be quite helpful.
http://skagit.meas.ncsu.edu/~helena/grasswork/interpgen.html
Mark
On Thu, Feb 26, 2009 at 9:52 AM, Christian Braun
christian.br...@tudor.luwrote:
Dear list members,
I am currently working on the generation of a hydrologic correct
try:
g.region -ap res=10
If my memory serves me correct.
Mark
On Wed, Feb 18, 2009 at 10:11 AM, Margherita Di Leo direg...@gmail.comwrote:
Hi all,
i have a problem using Grass 6.5 with a raster elevation map running the
command 'r.terraflow'.
I need to obtain the flow accumulation with
.
accumulation,direction).
Mark
On Thu, Jan 29, 2009 at 10:49 AM, Georg Kaspar ge...@geofs.de wrote:
On Thu, 29 Jan 2009 10:20:36 -0500, M S wrote:
In short, r.watershed, without depression input, will route water in
and *up* and out of depressions in the terrain to illustrate the
complete downward
It looks like it was exported in Z,Y,X or Z,X,Y coordinates. You will have
to tell GRASS that on input; the order or the values. Its normally x,y,z
format.
have fun.
Mark
On Wed, Jan 28, 2009 at 3:22 PM, Frank Aragona fr...@agroinnovations.comwrote:
Mark,
I've attached the .csv file for
There are a lot of great hydro tools in GRASS. I would recommend at a
minimum, some of these below.
On Wed, Jan 28, 2009 at 2:08 PM, Frank Aragona fr...@agroinnovations.comwrote:
What I'd really like to know, actually, is how to do terrain modelling and
waterflow analysis on a small area. I
The 3rd edition GRASS book is really the way to go, perhaps after what
Werner recommended. It is one of the best books I have read on GIS as it
relates to concept and actual usage and implementation. It has lots of
applicable examples. I cant recommend it enough.
http://www.grassbook.org/
Is there a way to plot legal descriptions in GRASS? Where one is provided
with textual starting and end points, and then all the distances and angles
in between to construct the parcel.
For example, the legal may be point of beginning is at X,Y location. then
the legal goes something like, then
Too good! Not sure how I missed that one. That is simply awesome.
Mark
On Mon, Jun 9, 2008 at 1:57 PM, Dylan Beaudette [EMAIL PROTECTED]
wrote:
On Monday 09 June 2008, M S wrote:
Is there a way to plot legal descriptions in GRASS? Where one is
provided
with textual starting and end
I would be very interested in purchasing a supplemental book for the ~200
pages that needed to be excluded from the 3rd edition print. I am sure
others would be as well. I cant read enough about GRASS, and I absolutely
love the format and way information and examples are presented in the book.
That would be great. Let's say for example that I only want to classify
paved or dirt roads. So I setup two classes, one training area for dirt
road, and one for paved road. Then a third outlier class of everything else
that doesnt match the two inputted training classes.
It almost seems like
I have some lidar data, that has return strength or intensity values for an
infrared beam.
the lidar data points have a density to support at least a 3 foot cell size
(thanks to the results of r.in.xzy using meth=n and r.report - a great
tool!).
Because I'm working with about a 10 square mile
I realize one can use use a training map to cluster like features, but is
there a way to have a leftover class that throws everything else that
doesnt match a defined class into this leftover category?
I'm using i.gensig to generate a signature file from a training map, and
then i.maxlik to
I cant answer the question of how the v.surf.rst module choses points,
but I can say that with the use of r.in.xyz you can control this quite
well.
For example, (and relating to the last question) you can use different
methods to assign values to the cells from ASCII import. Meaning if
you have
PROTECTED] wrote:
(I take liberty to cc the list again for discussion)
On Thu, May 22, 2008 at 3:59 PM, M S [EMAIL PROTECTED] wrote:
That is cool. I will definitely check out the wiki page.
Perhaps I am not using locations or more specifically mapsets as
efficiently as I could be. If I were
again for discussion)
On Thu, May 22, 2008 at 3:59 PM, M S [EMAIL PROTECTED] wrote:
That is cool. I will definitely check out the wiki page.
Perhaps I am not using locations or more specifically mapsets as
efficiently as I could be. If I were to use a single location, but
with different
I have two GRASS workstations performing various lidar and basin
operations. My idea was to distribute the processing on various machines.
As new data gets created in each location on each computer, when all
processes are done, I would like to re-sync the locations to be the same.
So far, unison
I've had good results with r.watershed, however, I'm seeking further
clarification about the 'depression' input, specifically when the watershed
of interest is an internally drained basin.
I have a watershed that is an internally drained basin, where most of the
surface water outflows as
There is a location setup option for plain old X,Y coordinates, that are an
undefined system.
Mark
On Tue, Apr 15, 2008 at 7:34 AM, Kunal Malik [EMAIL PROTECTED]
wrote:
Hi !!
is it possible to import map without providing datum Projection..
and does datum wgs84 and lcc can co-exist at
On Mon, Apr 14, 2008 at 1:33 AM, Hamish [EMAIL PROTECTED] wrote:
Mark wrote:
The points are about 5 million per tile, and there are 23 tiles (about
115 million total). I'm not sure if this is considered a large amount
of mass input points.
Yes, it's a lot. The current vector engine
Hi all:
When I run v.outlier I get the following error. The data source is lidar
data, created with v.in.ascii with no table or topology. Any suggestions?
Here is the error message:
GRASS 6.2.2 (SPWharnFT):~/gis/locations/SPWharnFT v.outlier
input=lidar57697_3d output=lidar57697_clean
Hello list!
I was importing lidar data into a 3D point with the sqlite dbase driver.
While it was chugging on that, I tried to import some simple polygon data.
I got a database locked message.
Does this mean that database access in a mapset (when using sqlite) is
limited to one vector at a time?
Thanks for the various solutions.
The points are about 5 million per tile, and there are 23 tiles (about 115
million total). I'm not sure if this is considered a large amount of mass
input points.
Perhaps the table size is OK. I havent reached a size problem yet, but I
was trying to avoided it
How about v.overlay?
On Thu, Apr 10, 2008 at 8:13 AM, Isabel Alfaro Cardozo
[EMAIL PROTECTED] wrote:
i want to overlap a poligon layer with a line layer and have GRASS tell me
wich lines are in a defined poligon, is it posible to do? wich comand do i
have to use?
thank you
Greetings GRASSers:
First I'd like to say what a great book the Open Source GIS: A GRASS GIS
Approach (3rd edition) is. It is full of great practical and conceptual
examples. Well worth the money to anyone who has not purchased it yet!
Also a big thanks to the developers and users of GRASS who
I just used this
http://grass.gdf-hannover.de/wiki/Sqlite_Drop_Columnexample to drop a
column with a SQL transaction in a file. It worked great.
Mark
On Wed, Apr 9, 2008 at 10:00 AM, Isabel Alfaro Cardozo
[EMAIL PROTECTED] wrote:
I cant get db.execute to work it seems to be a problem with
:
On 09/04/08 14:55, M S wrote:
I would like to import the XYZ to build the geometry for 3D points, and
have only Cat and Code in the attribute table. (Code being a column
name for the 4th column in the input ASCII). I cant seem to find the
combination of column definitions and other
I just wanted to drop a quick note to say thanks to everyone for the great
contributions to the open source GIS community via GRASS and QGIS and GDAL
(and all other associated apps!).
Thanks to the developers for building such a solid and useful product, and
thanks to the users and community for
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