Am 02.01.2014 23:13, schrieb Markus Neteler:
You may consider r.sun as well in order to compute cast shadow. I
played around with it recently, see
http://courses.neteler.org/will-the-sun-shine-on-us/
Thanks for sharing this.
Perhaps r.sun.hourly should get an additional flag to generate the
Am 04.01.2014 15:12, schrieb Vaclav Petras:
On Sat, Jan 4, 2014 at 6:17 AM, Tim Michelsen
timmichel...@gmx-topmail.de mailto:timmichel...@gmx-topmail.de wrote:
Am 02.01.2014 23:13, schrieb Markus Neteler:
You may consider r.sun as well in order to compute cast shadow. I
Calibre seems good for going from HTML to ePub and Mobi, and probably
PDF too. PDF-eBook is apparently not a pretty thing. HTML actually
seems the preferred starting format, so we should be able to make progress
quickly.
http://calibre-ebook.com/
At first I thought about a single large
Dear all,
I am receiving quite some of these mails on the LP packages for both
version 6.x
7.x.
There are even less constructive messages like: your PPA is broken.
just let you know. fix it
As noted in an earlier email:
http://thread.gmane.org/gmane.comp.gis.grass.user/46947
I currently cannot
Hello,
would like to make a table join based on two fields.
So suppose I have to create a new temporary join field (joinkey).
I have the fields area (C2) and value (D2), per one area these do not
repeat.
So in Excel I did for preparing the source table for the other values:
=(C2 D2)
How can I
Am 31.07.2013 18:44, schrieb Michel Wortmann:
And straight on to another question:
Is there a way of switching of the permissions check when opening a
mapset? It prevents me from opening mapsets that are mounted on
different filesystems as the grass installation. E.g. if I try to open a
ERROR: MAPSET PERMANENT - permission denied
Any solution to this would be much appreciated.
In any of the current SVN versions, setting the environment variable
GRASS_SKIP_MAPSET_OWNER_CHECK to any non-empty string will suppress
the check.
Yes, but what for the people who wanna rely on the
hello Marcus and others,
just wanna give feedback and say thanks:
How can I create an area that fills the area between these lines and to
which the same value as the last adjacent line is attached (all points
from one line to the other have the same cost factor)?
You could try to
1.
Hello,
I reclassified a continous integer value raster into discrete classes.
But when adding a raster legend to the map, it still shows a continued,
map with a colour gradient.
This is not true as the raster map values have true and hard class breaks.
How can I get aroudn this limitation of
Thank you Stephen
I guess my System manager used GRASS-binary packages which it means that
do not support this.
Ask him to install the package
grass-dev
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No, just this one:
python: can't open file
'/usr/lib/grass/etc/gui/wxpython/gis_set.py':
[Errno 2] No such file or directory
Received EXIT message from GUI.
that should be /usr/lib/grass70/etc/ not /grass/?
Did the version number extract part of the build rules script
work? maybe it
Below a suggestion for the packaging structure:
regarding addon packaging. We can create packages like
grassaddons(full addons)
grassaddons-imgagery
grassaddons-vector
grassaddons-raster
grasssaddons-general
I question when looking at :
http://trac.osgeo.org/grass/browser/grass-addons
I
your grass7.0 also gives error in g.version right?. I think it might be
a bug in grass which need to be fixed.
No, just this one:
python: can't open file '/usr/lib/grass/etc/gui/wxpython/gis_set.py':
[Errno 2] No such file or directory
Received EXIT message from GUI.
Dear community of GRASS users,
is there a need for having packages for the GRASS addons?
Please give feedback by:
(+1 / 0 / -1)
And of saying yes (+1), would you voluteer in heping with packaing and
maintaining the daily builds of the PPA?
Please give feedback by:
(+1 / 0 / -1)
Below a
could you please test latest build of grass70 package for quantal?
startup error seems to be gone but install extension has some issues
related to g.version script
I get for grass70:
Hit RETURN to continue
Starting GRASS GIS...
python: can't open file
Am 24.04.2013 23:21, schrieb Markus Neteler:
On Wed, Apr 24, 2013 at 11:15 PM, Tim Michelsen
timmichel...@gmx-topmail.de wrote:
...
I get for grass (6.4.x):
3D view mode: /usr/lib/grass64/lib/libgrass_ogsf.6.4.3svn.so: symbol
TIFFSetField, version GDAL_1.8 not defined in file libgdal.so.1
/grass70_release_debian
change and upload again.
If you do not want to wait for LP builds, use pbuilder locally to test
your changes.
Feel free to ask if you have more questions!
Kind regards,
Timmie
On Sat, Mar 30, 2013 at 6:03 PM, Tim Michelsen
timmichel...@gmx-topmail.de mailto:timmichel...@gmx
Hello all,
nice that this discussion becomes lively now!
the first thing that should happen is that the control files
should be updated to pull from the latest from the DebianGIS
git repository.
I respect and recognise the work done there.
2 points where this is not always possible:
* your
Dear GRASS users and developers on Ubuntu,
It seems [1, 2] that there is high demand for up-to-date packages of
both grass stable (6.4.x) and development code (7.0.x) for Ubuntu.
So we have put an overview on the situation on the wiki:
http://grasswiki.osgeo.org/wiki/Ubuntu_Packaging
r.what [1] just prints out.
Isn't the right tool v.sample [2]?
r.what extracts values from one or more raster maps at locations given
by coordinates.
v.what.rast uploads raster values at positions of vector points to the table.
But why is there v.sample if all other commands have similar
I have to extract isolated value from several raster.
Interestingly.
Yesterday I had the same task to solve:
have a vector with some sampling points and wanting to insert values
from 2 raster layers to the table.
The GRASS module r.what [0] extracts raster values at a
given location. As input
OK, I did it.
Stable (grass6.4.X) Packages are in the grass-stable PPA:
https://code.launchpad.net/~grass/+archive/grass-stable
This includes Ubuntu 12.10 13.04!
So let's try to run the recipe daily without errors:
https://code.launchpad.net/~grass/+recipe/grass64
If you want to see how I
Hello user list,
I have a question concerning equal distant buffer lines
I struggle in creating equal distant buffer lines for a central
reference line (e.g. a river):
E.g. say I have a river and would like to generate lines and as well
areas of 10, 30, 50m distance to that river in order to
Hello user list,
I have a question concerning raster works:
classifying in by typical methods
How can I create a reclassified raster from another raster with
continuous values where the classification follows the following rules
* equal steps (a class break every 100 or 50 [mg/m^2])
* equal
yes. there is. unbuntugis-testing PPA
I found ubuntugis-testig, but it only goes up to precise - I am looking for
quantal.
Don't worry for now - I just compiled GRASS.
What about contributing to the automatic development builds -- once
yours works?
Just push your changes to:
Sidenote: I really hope that one day Ubuntu launchpad will deliver
GRASS binaries...
Since all code is well imported from SVN to LP:
https://code.launchpad.net/~grass/grass/releasebranch_6_4
It is /*only/* an issue of updating the debian files:
I was having the same error in openSUSE OBS about gui/wxpython and it is
now fixed in svn (branch_64).
OK, I requested a build. let's see.
I see that there is a direct mirror from subversion to bazaar in LP.
All code is here:
https://code.launchpad.net/~grass
This should trigger a build on
Am 25.03.2012 18:58, schrieb John Ortiz:
I'm trying to install GRASS 6.4.2 on Ubuntu. However when I launch
GRASS it
says it is version 6.4.1. Any ideas what I'm doing wrong?
You are right, the only reason is that grass 6.4.2 still are not available
in Ubuntu repositories..
In this
note that r.sun output maps can be used to good effect with
the d.shadedmap module to make a more-correct version of a
typical r.shaded.relief image.
e.g. http://bambi.otago.ac.nz/hamish/grass/screenshots/deep_cove_rsun.jpg
Wow, stunning.
How was it generated?
ps- debian has a site set up
is there a good tutorial or blog post somewhere that could guide me
through the creation of a shaded relief (aero-imagery over DEM)?
OK, I found more in the records of the ML:
r.sunmask (position) and r.shaded.relief
http://thread.gmane.org/gmane.comp.gis.grass.user/42653/focus=42669
Also nice
is it known when Ubuntu and GRASS repos will be updated?
I'm interested in a debian repo providing GRASS 6.4.2
could you please try the packages here:
https://launchpad.net/~grass/+archive/grass-stable
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Am 31.01.2012 00:05, schrieb Markus Neteler:
On Mon, Jan 30, 2012 at 11:16 PM, Gabriele N.gis...@libero.it wrote:
Ciao.
I have installed GRASS (6.4.1) from the repository and I can not install
i.pr (add-on).
With g.extension
unfortunately 6.4.1 is too old in a sense that on Ubuntu
Hello,
is there a good tutorial or blog post somewhere that could guide me
through the creation of a shaded relief (aero-imagery over DEM)?
What are the recommended export settings for creating a GeoTIFF from
such a composition?
Thanks in advance,
Timmie
Hello,
I would like to use GRASS for analysis regional potential for hydrology
applications like run-off / small scale hydro power.
So from a DEM I would create watersheds. But then I am still unaware of
which tools and methodology to use.
Is there a article or publication that detailes on
Hello,
for my projects I often have to create several locations: 1 in wgs84
lat/lon for importing data, another for the actual target projection
(e.g. ETRS89)).
One thing I always would like to have is the option to configure region
extend and resolution setting by the projection default
I'd like to install Grass on my Ubuntu 11.04.
Could someone tell me if the Generic weekly snapshot of Grass works
fine with this Ubuntu release?
daily builds:
https://launchpad.net/~grass/+archive/grass-stable
Please enable UbuntuGIS PPA before.
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maybe youd like to try these packages:
https://launchpad.net/~grass/+archive/grass-stable
Upon source change automatically built from GRASS source based on debian
packaging:
https://code.launchpad.net/~grass/+recipe/grass64
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Hello,
reading
http://grass.osgeo.org/wiki/GRASS_and_Python
I may still ask:
* is there a IPython-enhanced Python scripting console withing GRASS?
* What is the preferrred way to script grass from Python?
* Do I need to be inside GRASS shell to script in order to have all
environment parameters
Hello,
there was nice PDF file created by Hamish that shows which grass command
(module) is mapped to which menu in the wxGUI.
I cannot find it on the following doc pages:
* http://grass.osgeo.org/grass64/manuals/html64_user/index.html
*
note g.extension is rather new and untested compared the rest of
the software, especially on Windows. Besides svn for building C
modules, you will need a C compiler which doesn't ship with the
GRASS installer.
What about a automtaci build process on the server?
Then the users would download a
I think there were (and believe still are) problems with gdal when
configured for both hdf and netcdf formats - I believe you cant have
both which (if still true) is too bad, because lots of climate related
data come in both of these 2 formats.
To my opinion QGIS or GRASS should have a similar
Dear all,
the GRASS addons are a wonderful resource for scripts.
My questions here:
1) How do I install on Windows
a) source addons that need to be compiled
b) scripts that are written with bash or python
2) If I create a SVN checkout somewhere on my computer and add the checkout
directory
Hello,
is it possible to use g.extension with a local SVN checkout of the
online repository at https://svn.osgeo.org/grass/grass-addons ?
This could be convenient when working disconnected to the net.
Alternatively, this program could also support other VCS tools such as
Bazaar or Git.
What do
front-end, LyX, to be much quicker and more productive than writing
LaTeX in
emacs. So I'm not totally averse to using the pointy-thingie when it's
demonstrably more productive. :-)
The same applies to the new GRASS GUI.
It's awesome and once you get acustomated pretty useful.
You may wanna
Hello,
what do the inputs for i.sunshine in GRASS7 mean?
i.sunhours doy=name lat=name
Thanks in advance,
Timmie
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Hello,
I while ago I asked how to cut a small map from a larger one using the
region settings as boundary for the small map:
http://n2.nabble.com/r-mapcalc-changes-color-table-td4072836.html#a4072836
I tried this again:
Approach 1: r.mapcalc
r.mapcalc cut=if(boundary_raster,
I tried this again:
Approach 1: r.mapcalc
r.mapcalc cut=if(boundary_raster, large_map,
null())
Approach 2: r.resample
r.resample input=large_map output=cut
I notice the that using Approach 2, the areas that was outside the set
region is white. The underlayung
I while ago I asked how to cut a small map from a larger one using the
region settings as boundary for the small map:
http://n2.nabble.com/r-mapcalc-changes-color-table-td4072836.html#a4072836
I tried this again:
Approach 1: r.mapcalc
r.mapcalc cut=if(boundary_raster,
MAP=your_map_name
v.db.addcol $MAP column=north DOUBLE PRECISION, \
south DOUBLE PRECISION, east DOUBLE PRECISION, west DOUBLE PRECISION
eval `v.info -g $MAP`
echo UPDATE $MAP SET north = $north, south = $south, \
east = $east, west = $west | db.execute
With the latest efforts to
Hello,
which command line and GUI options do I have to get the current mapset?
I am looking for a command that tells me the mapset selected when
eneting GRASS.
g.mapsets shows with its -p option all mapsets in the search path and
g.mapset shows all in open locations.
Could these two commands be
First,
thanks to all who responded. I will try and apply that later.
6) use r.mapcalc to cut: r.mapcalc cut=if(boundary_raster, large_map,
null())
Replace step 6 with:
g.copy rast=boundary_raster,MASK
r.resample input=large_map output=cut
g.remove rast=MASK
Can someone
Dear Grass Users,
I have a large georeferenced digital map.
I successfully imported it into GRASS.
Now I would like to cut only a small rectangle -- my investigation
area -- out of this large map.
I used the following approach:
1) import the TIFF
2) select the part of interest in the GRASS
Dear grass users,
recently someone posted a link to some course materials for courses held with
the windows version.
I canot find the link anymore.
May someone indicate me any material focusing on the GRASS windows
installations?
I would like to forward it to a group of new users that are not
-Monthly Averaged Clear Sky Insolation Clearness Index
By its name -- without having read the description -- I would recommond this
one.
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What is the best way to handle this?
Use a filesystem which was designed for a multi-user OS.
It could, but that replaces one problem (using FAT filesystems on
Unix) with another (users accidentally trashing other users' mapsets).
See the following use case:
A desktop/notebook used by a
Hello,
thanks a lot for the answer (on the weekend) ;-)
You must be the owner of the directory selected as the current mapset.
A FAT/VFAT partition mounted by root must be mounted with the uid=
option to set the owner.
OK. I was able to get access using the right uid in fstab.
But let's say
Hello,
I have a question on the requirements GRASS has towards user/group
permissions on linux:
My data is stored on a vfat partition mounted by a Ubuntu Linux.
The corresponding entry in the mount configuration file (/etc/fstab) goes:
UUID=44FC-A7FD /media/daten vfat
I think you mix up the purpose of location and mapsets- what
you ask for is exactly what mapsets are do.
It seemed to. And yes, this may come from experiences with other GIS
programs, too.
Note that not only ArcGIS works this way but also QGIS or gvSIG, for
instance.
Throw together data from
By file system based copying?
Yes. If you are sure the projections of the locations are the
same, move the entire mapset over.
I am still not 100% sure why data from mapsets in different locations
with the same projection cannot be re-used in other locations.
Why there are no g.mapset.move,
[straying more than slightly off-topic]
If you are a fan of the structured/sanitized approach to data management
you might enjoy the LyX word(document)-processor. It's a WYSIWYM frontend
to the LaTeX typesetting language, and to use the vernacular- it rocks.
For writing manuscripts there is
What about a command that lets users safely move a vector
from one locagion into the other?
as above. this is on purpose to protect distinct map projections.
please see my use case where a locations serves global datasets for
other smaller locations.
Or the one with a test / development
moving from one location to another location (which usually is/should be
of another projection) is safely done with v.proj. Why use another
command for that?
Then v.proj should support:
* -r flag for importing only the current region extend
* -ship_project flag if source target locations have
I don't understand what you want to do here.
Image the following use case:
You have project location.
Then you would like to test out some new processing workflows or
developed a new methodology.
In order not to pollute the project location with a lot of test rasters,
you start a new location to
moving from one location to another location (which usually is/should be
of another projection) is safely done with v.proj. Why use another
command for that?
Then v.proj should support:
* -r flag for importing only the current region extend
* -ship_project flag if source target locations have
add the mapset as a symlink to the mapset in the other location,
then use the @othermapset notation.
As GRASS is aim to support Windows, this is not an option
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Maybe I am misunderstanding the concept of mapsets.
And that the develpers meat mapsets to provide this kind of functionality.
I read the basic explanation at:
http://grass.osgeo.org/wiki/Gis_Concepts#How_a_GRASS_project_is_organized
So for testing new data or methods, I definately should use a
I don't understand what you want to do here.
Image the following use case:
You have project location.
Then you would like to test out some new processing workflows or
developed a new methodology.
In order not to pollute the project location with a lot of test rasters,
you start a new location to
add the mapset as a symlink to the mapset in the other location,
then use the @othermapset notation.
As GRASS is aim to support Windows, this is not an option
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Sorry, Hamish already gave an answer to that in his first reply:
add the mapset as a symlink to the mapset in the other location,
then use the @othermapset notation.
BTW, how do you do this on a Windows computer?
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So sharing data between locations is not really supported?
Not at all supported. (except for v.proj, r.proj, i.rectify)
What about a command that lets users safely move a vector from one
locagion into the other?
Even if I just want to add the layer to the map view?
if you want to mix
Hello grass users,
There exist v.external and r.external to link to data which hasn't been
imported into GRASS.
But in order to save time and disk space I would like to link to data
sets from other locations:
How do I link to a raster and vector data in another location presuming
it has
r.mapcalc newmap = landcover - buildings
if I understand right this might work for you, if everything that is not a
building in your 'buildings' map is no data (null):
r.mapcalc newmap = if(isnull(buildings),landcover,null())
The outcome is a map showing only the buildings and no
Actually,I have reproject the map-I create a new location with the
latitude (epsg 4326),then use r.proj commond to reproject the map,however when I
display the map I found there is a very serious distortion,the exported kml is
also So I have give up the idea.
I am talking about vectors.
Hello,
How do I zoom to a certain point (e.g. -3, 35) in the GRASS map window?
Kind regards,
Timmie
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Hello,
I tried to create a point vector from a table with coordinates:
db.in.ogr dsn=points_in.csv output=points key=myid
v.in.db --overwrite table=points x=UTM_E y=UTM_N key=myid output=points_vect
= ERROR: x/y/z column must be integer or double
Why do I get this error?
How to I change the
wxGUI: Go to in Map display statusbar? GRASS = 6.5.
do you refer to
https://svn.osgeo.org/grass/grass/branches/develbranch_6/?
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Hello,
when exporting from a projected system to KML, is a reprojection into
WGS84 included?
in the manual there is:
v.out.ogr input=random3d_hull dsn=random3d_hull.kml format=KML \
type=face dsco=AltitudeMode=absolute
Let's say I use the EPSG:2965 projection. in my works. Exporting to KML
Are the GUI program files byte-compiled into *.pyc files
during install?
not sure what happens in the installer, but if not that should happen
automatically the first time you run it, assuming you have write
permissions in the install directory.
fwiw using the rc5 native wingrass
Hello,
I am trying to reproject a vector from latlon/wgs84 to a UTM/projected
location
The program aborts with the message:
v.proj: split_q.c:69: RTreeClassify: Assertion `!p-taken[i]' failed.
What does this mean?
How can I get around this?
I run this comand Ubuntu 9.04, 64svn.
Thanks for
icons) but the wxpython GUI still does not include vector digitizing
(wxvdigit) or 3d visualization (wxnviz).
the last time I ended up in the hell of mixing libraries built using
mingw (GRASS) and msvs (wxpython). Currently I have no time for this
kind of fun. If somebody put on wiki
By the way, I just started using the WxPython interface for good and I
got to say it's great. The only drawback is that it's slower than the
tcltk interface. But that is probably due to my very weak and old
laptop (1Ghz Transmeta Crusoe processor)
I noticed that also.
I use a Intel multi-core
I guess here
http://lists.osgeo.org/mailman/listinfo/ubuntu
I put it here:
https://bugs.launchpad.net/ubuntu/+source/geos/+bug/387299
What to do under the current situation if libgeos does not work:
1) open synaptic
2) search for geos
3) select the package libgeos-c1
4) menu package - force
BTW, where do I report errors with the UbuntuGIS PPA packages?
Here are more infos:
http://lists.osgeo.org/pipermail/ubuntu/2009-May/16.html
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Hello,
I cannot find r.in.external in the wxPython based GUI:
http://grass.itc.it/grass64/manuals/html64_user/r.external.html
Would it be possible to add support for
* r.in.external for a single layer
* r.in.external for multiple layers in the same way as it is provided
with r.in.gdal?
The
My current idea is to play with the bounding box
(extend) definitions when
defining the projection of the location and then
import-/reimport.
IS there a option in GRASS to shift a raster by a vector (x, y)?
I found such a tool in the ArcMap Toolbox.
Regards,
Timmie
Hello,
great news.
Key improvements of the GRASS 6.4.0 release include enhanced
portability for MS-Windows (native support), hundreds of fixes,
the new wxPython based portable graphical interface and much
new functionality.
I would like to test the Windows port.
I didn't find a installer for
Besides that you can also generate indices or do a transform.
See for example
http://grass.osgeo.org/grass64/manuals/html64_user/i.tasscap.html
- 'Wetness' Tasseled Cap component 3 (screenshot)
thanks for this hint. looks useful.
For completeness, I found also:
* Impervious surface
Hello,
I aim to delineate landscape features -- especially water bodies -- from
Landsat imagery.
There was a publication where this was conducted with ArcSDE Oracle at
[1].
My question: has anyone tried such a task with GRASS?
Which combination of tools/commands lead to the best results?
Hello,
I have a raster which was calculated from r.mapcalc and therefore contains areas
with NULL values.
Is there any procedure I can use to get an raster (or better vector) with the
outline of all coherent or connected areas where the raster values are not NULL?
Example:
Imagine a raster with
Hello,
thanks for your help. but this is not all that I was looking for.
Basically, I'd like to run v.extract/v.overlay not on a
vector-to-vector basis but on a vector-to-raster basis.
g.region rast=dem_name
v.in.region dem_box
then v.overlay or v.select, depending on if you want to want
This datum name is very unusual and I'm not sure where it could have
come
from. What version of GRASS? What is the exact commandline you used?
ii grass 6.3.0-0
Geographic Resources Analysis Support System
ii grass-doc
Hi,
thanks for the fast response.
'(name = Ukraine)'
is bogus, should be
where=name = Ukraine
It worked finally with
where=name = 'Ukraine'
Timmie
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Hello,
I have a shapefile containing 150 polygons.
After importing this shapefile with v.in.ogr and then adding it to a qgis prject
I observe that it has more polygons than the original data source.
I tested it by overlaying the original shapefile in QGIS as a normal (non-GRASS)
vector.
This is
Here you can find some scripts, perhaps useful.
Thanks you for these scripts. They are really useful.
I tried the merge process with the script shpmerge.sh that Paolo sent.
That is really effective and works well.
The only issue is that it show the following error in the bash:
shpmerge.sh:
* I cannot just point the program to a directory of shapefiles and tell
it import all. QGIS, gvSIG and ArcGIS can do this.
We could easily add v.in.ogr.all or v.external.all, I suppose two or
three lines of shell script :) Could be stored in the Addons wiki.
I added the script from
We could easily add v.in.ogr.all or v.external.all, I suppose two or
three lines of shell script :) Could be stored in the Addons wiki.
Could be easily done in wxGUI too...
I created a ticket at:
http://trac.osgeo.org/grass/ticket/240
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Some defect it seems. Please report to Trac (with details how to reproduce).
I upgraded the memory (RAM) of that PC to 1 GB.
Now it works.
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Hello,
Here you can find some scripts, perhaps useful.
Thanks you for these scripts. They are really useful.
Nevertheless, I cannot get around expressing my disappointment about
GRASS in this area.
* I cannot just point the program to a directory of shapefiles and tell
it import all. QGIS,
Hello,
what methodes are recommended to use within GRASS to calibrate a map
with by using geostatistical methods?
OK, normally the method depends on the kind of data. Therefore I may
give an example:
I have long-term meteorological mesurement data (timeseries aggregated
to monthly frequency)
Hello,
for my current project I would like to create some postscript maps.
When I run ps.map it takes a lot of time. I use a DEM as raster layer
and country borders as vector layer on top of it.
The DEM covers two SRTM tiles.
Is there any way to speed the process up?
How do I best set the
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