Hi,
I'm testing r.hazard.flood and noticed that it computes the flood and
mti layers on the full region of the elevation raster instead of the
pre-defined region settings.
The relvant code I found from the r.hazard.flood is this:
# Detect cellsize of the DEM
info_region = grass.read_comman
Hi,
I have a series of vector polygon layer where there is an attribute
for estimated depth of the rivers/streams. I want to use this in
r.carve [0] to improve the river/stream channel of my DEM.
As I understand it, r.carve [0] only uses a single float value to
carve the stream channel.
Instead
Has anyone here able to archive and load GPM dataset into GRASS? I
was able to get TRMM netcdf in my area of interest before, but I can't
find the tools to automate GPM downloads.
Thanks!
[0] http://www.nasa.gov/mission_pages/GPM/main/
--
cheers,
maning
-
Thanks Markus. Already registered and can access ftp. Unfortunately,
processed (L3) rainfall data will be released by Dec 2014.
Will just wait then. :)
On Thu, Nov 6, 2014 at 4:27 PM, Markus Neteler wrote:
> On Mon, Nov 3, 2014 at 10:18 AM, maning sambale
> wrote:
>> Has anyone
Hi,
I'm trying to import multidimensional netCDF files slicing the bands
according to time. I want to use the new temopral module in GRASS70
for further processing.
My process are as follows:
1. Download the netCDF usinf ncks, i.e.:
$ ncks -O -v r -d time,${MIN},${MAX} -d lon,115.00,155.00 -d l
Hi,
I have an 3hr raintrate data in GRASS STRDs. I tested running a 10day
accumulation but I get valuerror.
Details below:
GRASS 7.0.0 (rainfall):~/trmm > t.info 3hr_rainrate
+ Space Time Raster Dataset -+
|
Hi,
A have a temporal raster of 3hourly_rainrate.
> t.rast.list input=3hr_rainrate
name|mapset|start_time|end_time
3hr_rainrate_2014-11-13_0300|PERMANENT|2014-11-13 03:00:00|2014-11-13 06:00:00
3hr_rainrate_2014-11-13_0600|PERMANENT|2014-11-13 06:00:00|2014-11-13 09:00:00
The values are the avera
Thanks Moritz.
I renamed all my maps and its working now.
On Tue, Dec 2, 2014 at 8:59 PM, Moritz Lennert
wrote:
> On 02/12/14 13:30, maning sambale wrote:
>>
>> Hi,
>>
>> A have a temporal raster of 3hourly_rainrate.
>>>
>>> t.rast.list input=3hr_r
Hi,
I have 3hourly rainrate data for a given region in a GRASS temporal
database (strds).
I want to aggregate the data by summing all raster from the previous
10 days to calculate the accumulated rainfall.
The temporal modules have several tools:
t.rast.series
t.rast.accumulate
t.rast.aggregate
t
Dear Vero,
Thanks for the reply. But t.rast.aggregate does not do what I intend
to do. My rainrate is from a span of 20 days.
t.rast.aggregate produces (as expected) two rasters, one for each of
the 10day accumulation. What I want for example is like a moving sum,
where for each day, it calcula
>
> Oh, I see... then, t.rast.accumulate is what you need. The default method
> "mean" does the sum.
So "mean" is actually sum?
>
> Maybe, something like this (please re-check the cycle and granularity
> parameters, i didn't test)
>
> t.rast.accumulate input=3hr_rainrate output=10day_acum_precip
Dear Soeren,
> The temporal raster algebra module is very experimental, but i hope
> that this will work.
Thanks will try this.
--
cheers,
maning
--
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.c
GRASS71 binaries at launchpad's grass/grass-devel is only for Ubuntu 12.04.1.
Any chance to get one for 13.10 and 14.04. Maybe from other repo?
--
cheers,
maning
--
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambal
Hi,
I have a DTM I want to resample. The original data was in lat/lon SRS
which I re-projected to UTM and imported to GRASS GIS.
GRASS 6.4.3 (pampanga_wshed):~ > r.info ifsar_dtm
++
| Layer:ifsar_dtm
Just noticed it today and would like to share. Last year, NASA/JPL
announced that they will finally release SRTM ~30m to areas outside
the USA starting with Africa.
I noticed today that data is now available for my country. Might be
available for your areas too.
--
cheers,
maning
-
Hi,
I'm running r.basin using GRASS 6.4.4 from KyngChaos.
r.basin map=dem_90_int@PERMANENT prefix=out easting=712026.954
northing=1212651.537 threshold=40 --overwrite
I get this error, but the process continues.
out_dem_90_int_dist2out Done
##
Traceback (most rec
Dear Margherita,
Thanks!
On Thu, Apr 30, 2015 at 4:35 PM, Margherita Di Leo wrote:
> Matplotlib is a dependency needed for the graphic output, being the
> hypsographic curve and the width function. If you don't need those graphics,
> this error will not affect the result that you get. For what c
Hi,
I have a lot of aerial photos I need rectify. The data came from an
incomplete project intending to acquire geospatial data for landslide
risk assessment.
The project ended prematurely.
Here are the details:
Images were acquired using this method.
Two GPS receivers were used, one attached t
> OK, I have added my draft recipe here:
> http://grass.gdf-hannover.de/wiki/Orthorectification_digital_camera
It says:
Usually such high-resolution DEMs (raster cell length below 1m) are not
easily available. Therefore, interpolation of a given DEM to a higher
resolution is recommended
The dem
Salamat!
Never expected such quick replies!
A few more details:
Camera: Kodak Pro DCS 14N digital SLR camera
using a 19-35mm Tamron zoom lens set at 19mm focal length, 13.5
megapixel resolution (4,500 x 3,000 pixels).
Images are in Kodak DCR format. Converting to tif before export to
GRASS mo
Hi,
I'm trying to interpolate a DEM to match my imagery. The images are
approximately 60 cm resolution of about 829,490,277 cells!
GRASS 6.2.2cvs (phil_geog):~ > g.region rast=infanta_qb.rgb -pm
projection: 3 (Latitude-Longitude)
zone: 0
datum: wgs84
ellipsoid: a=6378137 es=0.0066943
Markus,
> Well, you have what you have, I think. For which country do you need
> the DEM?
Philippines
> > >>I once received a script collection to use Octave and GRASS
> > to perform bundle block adjustment but never got that working
> > (still have the code, we could contact the author).
I've be
r.mapcalc new_map="round(original_map)"
On 6/30/10, Pedro Venâncio wrote:
> Hello Micha and Eloi,
>
> This
> procedure only extracts the integer part of the number, it is not rounded.
> For example, 3.8
> becomes 3 instead of 4.
>
> Is there any way
> to "force" the rounding?
>
> Thanks!
>
> Pe
Hi,
I have several Landsat (4-7) images from 1990-2002 which will be used
for change analysis of land cover. FAO's FRA-RSS [1] developed a
standard methodology for integrating multi-temporal Landsat into a
consistent sample tiles. The article [2] outlined the general method
as:
- Image subsetti
2010/9/29 Markus Neteler :
> 2010/9/28 António Rocha :
>> Greetings
>>
>> I'm trying to find if GRASS includes some-sort of way to detect/eliminatd
>> cloud cover and shadows from LANDSAT Images.
>> The only thing I found was this:
>> http://svn.osgeo.org/grass/grass-addons/imagery/i.landsat.acca/d
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 fol
For individual layers in GRASS, you can add descriptive information
and processing history using r.support.
To access the information, use r.info.
Many metadata support files in GRASS are simple text files.
A simple shell script can parse that data and reformatted into a human
readable format.
This site provides PALSAR 50m Orthorectified Mosaic Product.
http://www.eorc.jaxa.jp/ALOS/en/kc_mosaic/kc_mosaic.htm
I tried running gdalinfo to the directory, img and header files, but
gdal doesn't recognize the format. There is pdf (below the webpage)
but I can't find any reference to the file
, maning sambale
wrote:
> Anyone successfully loaded kc50 palsar raw imagery with gdal?
>
>
> -- Forwarded message ------
> From: maning sambale
> Date: Tue, Nov 23, 2010 at 4:00 PM
> Subject: loading kc50 palsar datasets in GRASS
> To: grass-us...@lists.osgeo.org
I think its worth pointing out is that according to the ogr docs,
gdal/ogr automatically re-projects the data in EPSG:4326. I'm not
sure though if this is correct for all cases (in the past I always
make sure that my data in GRASS is in EPSG:4326 before converting to
KML).
http://www.gdal.org/ogr
r.mapcalc "integer_map = round(fp_maps)"
On Thu, May 19, 2011 at 7:04 AM, Michael Morin wrote:
> Techies,
>
> In ArcInfo I used to write .aml code to covert Floating Point Grids to
> Integer Grids. Doing this produced a .vat table in the new Integer grid
> thereby giving me elevation data whic
In your file browser, got to your grass database and delete the
".gislock" file (you need to show hidden files to see the .gislock or
any file with a preceding dot.
On Wed, Jun 1, 2011 at 6:31 PM, Niels Thevs wrote:
> Dear all,
>
> I want to digitize shapefiles in Q-GIS based on raster layers in
[Apologies for cross-posting]
Just a short announcement for anyone interested.
Public mailinglist for the OSGeo-Philippine local chapter is available at:
http://lists.osgeo.org/mailman/listinfo/philippines
This will be the main discussion list for organizing the OSGeo
Philippine Local Chapter.
Hi,
I have a series polygons located in a mountainous terrain. I can
convert the 2d vector into 2.5d using v.drape and a DEM, however, it
only converts 2D vector point or line data and not areas. My task is
to calculate the area in hectares of the polygon incorporating the
elevation/surface of t
5-7671(SHESC), 480-727-0709 (CSDC)
>> www: http://csdc.asu.edu, http://shesc.asu.edu
>> http://www.public.asu.edu/~cmbarton
>>
>
> --
> Benjamin Ducke
> {*} Geospatial Consultant
> {*} GIS Developer
>
> bendu...@fastmail.fm
>
>
> On Wednesday,
Hi,
Just a heads up if there are GRASS gurus who are using radar
(specifically PALSAR) for land cover classification. I just got back
from a radar workshop using ENVI 4.7. I am interested in "porting"
the methodology (import, pre-processing, classification) to GRASS.
Just looking for specific p
Sweet! Thanks markus.
On Feb 10, 2012 7:16 PM, "Markus Neteler" wrote:
> On Fri, Feb 10, 2012 at 12:15 PM, Martin Landa
> wrote:
> > 2012/2/10 Markus Neteler :
> >> Seems they have done it:
> >>
> http://www.osgeo.jp/wiki/index.php?title=Introduction_to_Radar_data_processing
> >
> > could be thi
Thanks markus for this.
I added an initial workflow for the ENVI tutorial I attended my goal
is to "port" this to GRASS. Most of the process is already available
in the pdf Alexander provided.
However, I'm having difficulty importing images from the K&C mosaic
product [0]. In the training I att
Dear Stefan,
If i remember it right, the window size is an input to the r.neighbors command.
In the script there is an option to slect a windows size:
#%option
#% key: window
#% type: integer
#% description: window size default is 5
#% answer : 5
#% required : yes
#%END
You can modify the r.neig
Any working code I can start with to create custom filters? I
basically want to run the speckle filters in GRASS. Sample filters
are explained here:
http://resources.arcgis.com/en/help/main/10.1/index.html#//009t01z700
--
cheers,
maning
--
Hi,
I'm trying to implement the FROST [0] SAR despeckling filter in a
GRASS script. The code according to the referenced link is below:
#
The implementation of this filter consists of defining a circularly
symmetric filter with a set of weighting values M for each pixel:
M = exp(- A * T
Dear Paul,
Do you have x2 monitor activated?
d.mon start=x2
d.monsize setmonitor=x2 setwidth=601 setheight=391
--
cheers,
maning
--
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http:
On Fri, Feb 15, 2013 at 11:40 AM, Yann Chemin wrote:
> (maybe in r.in.gdal, maybe another more specific.
Or, r.in.bin
--
cheers,
maning
--
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog:
I downloaded grass7 from Michael Barton's page [0] and then tried r.sim.water:
GRASS 7.0.svn (dtm):~ > r.sim.water elevin=dtm_1m dxin=dtm_1m_dx
dyin=dtm_1m_dy rain=rain manin=manning infil=infilt depth=depth
disch=discharge err=error --overwrite --verbose
dyld: Library not loaded: /Library/Framewo
>
> What is the best live-cd with GRASS (GDAL/OGR), QGIS ? Or, how could I
> build a custom live-CD including latest FOSSGIS tools?
Some options
http://grass.itc.it/download/cdrom.php
I think the most up to date is from ominiverdi
http://livecd.ominiverdi.org/index.php?page=LiveCD&toc=livecd
But
>
> But I use the FOSS4G2006 CD without minimal problems for my basic GIS
> classes. A bit old but very reliable (at least for me).
I mean:
with minimal problems
>
> http://ldap.telascience.org/foss4g/
>
> maning
>
> >
> > Thank you,
> >
> > Nikos
> >
> > _
Hi,
I'm having problems download the grass 6.3 cygwin packges using the
http://grass.ibiblio.org/grass63/binary/mswindows/cygwin/
Are there any server problems?
cheers,
maning
--
|-|--|
| __.-._ |"Ohhh. Great warrior. Wars not ma
Great! Thank you for a quick response!
On Wed, May 7, 2008 at 6:31 PM, Markus Neteler <[EMAIL PROTECTED]> wrote:
> On Wed, May 7, 2008 at 12:06 PM, Hamish <[EMAIL PROTECTED]> wrote:
> > maning sambale wrote:
> > > I'm having problems download the grass 6.3 cy
Hi,
Just tried it today,
http://grass.ibiblio.org/grass63/binary/mswindows/cygwin/setup.ini
still refers to 6.3.0-1.
cheers,
maning
On Wed, May 7, 2008 at 7:04 PM, maning sambale
<[EMAIL PROTECTED]> wrote:
> Great! Thank you for a quick response!
>
>
>
> On Wed, May 7, 20
Alright thanks!
On Thu, May 8, 2008 at 10:54 AM, Hamish <[EMAIL PROTECTED]> wrote:
> maning sambale wrote:
> > Just tried it today,
> > http://grass.ibiblio.org/grass63/binary/mswindows/cygwin/setup.ini
> >
> > still refers to 6.3.0-1.
>
> the mirror t
minal reports a fatal error:
It says:
Fatal server error:
Cannot open log file "/tmp/XWin.log"
xterm Xt error: Can't open display: 127.0.0.1:0.0
Any ideas?
cheers,
maning
On Thu, May 8, 2008 at 12:22 PM, maning sambale
<[EMAIL PROTECTED]> wrote:
> Alright thanks!
>
>
> But, under another username/account, I can't.
>
> cygwin terminal reports a fatal error:
>
> It says:
> Fatal server error:
> Cannot open log file "/tmp/XWin.log"
This file just needs write permissions to other users
Now, it's running.
> xterm Xt error: Can't open display: 127.0.0.1:0.0
>
> Any
Hi,
I'm using processed SRTM data from http://srtm.csi.cgiar.org/ the
current release is Version 3, which was a great improvement from V1
and 2 especially with 1/2 pixel shift, coastline boundary clipping and
filled holes.
I would like to ask others on using this dataset in calculating slope.
I
Marco,
>> now have a working GRASS database with SRTM imported (as integer).
> did you use r.in.gdal, right?
Yes
>>In running r.slope.aspect, do I need to do further pre-processing of
> the SRTM DEM?
>
> no, you don't.
Alright, thanks!
cheers,
maning
--
|-|--
Hi,
This simple script doesn't seem to work on my cygwin bash
for i in *.shp; do
ogr2ogr -f "ESRI Shapefile" -where "ELEVATION>10" $i_elev $i;
done
I'm trying to extract elevation contour lines from a couple of shapefiles
I know it worked before on my linux.
cheers,
maning
--
|---
I don't think so, this one worked:
ogr2ogr -f "ESRI Shapefile" -where "ELEVATION>10" new13744-4.shp 3744-4.shp
On Tue, May 13, 2008 at 3:54 PM, Nikos Alexandris
<[EMAIL PROTECTED]> wrote:
> On Tue, 2008-05-13 at 15:52 +0800, maning sambale wrote:
> &g
Both didn't worked.
> $i_elev --> ${i}_elev
>
> $i\_elev instead of $i_elev.
>
--
|-|--|
| __.-._ |"Ohhh. Great warrior. Wars not make one great." -Yoda |
| '-._"7' |"Freedom is still the most radical idea of all" -N.Branden|
Wolf,
Aha! It works now!
Salamat!
maning
On Tue, May 13, 2008 at 5:59 PM, Wolf Bergenheim
<[EMAIL PROTECTED]> wrote:
> On 13.05.2008 10:52, maning sambale wrote:
>
> > Hi,
> >
> > This simple script doesn't seem to work on my cygwin bash
> >
> >
jonathan,
I've just returned to grass on cygwin a couple of weeks ago. Overall,
I think it's pretty much stable, a couple of quirks I encountered
though:
1. No cut and paste under startxwin.sh shell
2. Some of my simple scripts (for batch import of vector and raster)
are not working, both unde
Glynn,
Thank you for clearing things out. Will check and report results by
next week.
Have a nice weekend!
maning
> 1. xterm doesn't use the clipboard by default, but the primary
> selection. Consequently, you can't paste the selection with e.g.
> Ctrl-V or Shift-Insert. This can be changed vi
Hi,
Using v.rast.stats in grass6.3 both in cygwin and native windows,
v.rast.stats [EMAIL PROTECTED] layer=1
[EMAIL PROTECTED] colprefix=dem percentile=90
I get this error
:/GRASS/scripts/v.rast.stats: r.cats: command not found
I see no entry in the 6.3 manual on r.cats
any ideas on using v.r
from http://grass.ibiblio.org/grass63/binary/mswindows/cygwin/
downloaded last 2008/05/08
According to the site
grass-6.3.0-2.cygwin.tar.bz2 22-Apr-2008 10:09 20M
So the packages are 22 of April.
maning
On 5/21/08, Hamish <[EMAIL PROTECTED]> wrote:
> maning sambale:
>> Using
Hamish,
> hmmm, don't know. the r.cats script should be there- it was included in the
> release source code:
> http://trac.osgeo.org/grass/browser/grass/tags/release_20080423_grass_6_3_0_1/scripts/r.cats
>
> oh well. the easiest solution is to edit the v.rast.stats script in a text
> editor to ren
Woohoo!
Just received an email from our College Librarian:
GRASS Book 3rd edition is now available for circulation
Along with Making Maps by Krygier and Wood
The 3rd edition is a bit thicker, time to read, read, and run sample commands!
cheers,
maning
--
|-|---
hi,
Not specifically a grass question. How do I download in bulk a number
of Landsat tiles from GLCF.
for example:
ftp://ftp.glcf.umiacs.umd.edu/glcf/Landsat/WRS2/p114/r052/p114r052_7x20010909.ETM-EarthSat-Orthorectified/
I want to download only the bands 1-5 and 7and the metadata.
I need to do
2008 at 1:03 PM, maning sambale
<[EMAIL PROTECTED]> wrote:
> hi,
>
> Not specifically a grass question. How do I download in bulk a number
> of Landsat tiles from GLCF.
> for example:
> ftp://ftp.glcf.umiacs.umd.edu/glcf/Landsat/WRS2/p114/r052/p114r052_7x20010909.ETM-Ea
MS,
On Tue, May 27, 2008 at 8:21 PM, M S <[EMAIL PROTECTED]> wrote:
> This sounds like a question for the Arc List, or their tech support?
I know, are there any public Arc list out there (can't seem to find
one with Google)? I'm not an arc user but my colleague sent me this
shapefile so we can ve
>> Just curious if anybody encountered this issue with Arc*:
>
> it's a common problem.
It does seem to be.
> short answer: TINs stink. Raster maps created from TINs stink more.
My colleague used SRTM DEM converted to grid format of Arc
He mentioned that it is fairly common when you convert raste
Hi,
I can't find the instructions on installing grass add-ons particularly
imagery add-ons
https://svn.osgeo.org/grass/grass-addons/imagery/
and
except i.landsat.dehaze which is simply a script
I'm using grass 6.3 on cygwin.
cheers,
maning
--
|-|--
Hi,
For a project I am involved with, we are conducting landcover
classification from LANDSAT TM (orthorectified) data downloaded from
GLCF.
We are now in the process on pre-processing the image and then conduct
classification using i.smap.
Following the GRASS book, we will be conducting the pre-
Markus,
> AFAIK LANDSAT is sun-synchronous, it passes in the local morning time
> (something like 10:30-11:00).
>
> Maybe this helps:
> http://earthobservatory.nasa.gov/MissionControl/overpass.html
Since it is an overpass predictor, it doesn't provide information on
previous landsat overpass. Ca
d from previous errors
DONE.
Segmentation fault (core dumped)
GRASS 6.3.0 (test_landsat):~/grass-addons/imagery/i.landsat.toar >
I'm using GRASS 6.3 under Cygwin.
maning
On Mon, Jun 2, 2008 at 3:08 PM, Markus Neteler <[EMAIL PROTECTED]> wrote:
> On Mon, Jun 2, 2008 at 5:33 AM,
Hi,
I'm getting segmentation fault using i.atcorr on a LANDSAT TM data. I
subsetted the image to test in a small region.
projection: 1 (UTM)
zone: 51
datum: wgs84
ellipsoid: wgs84
north: 646722
south: 641763
west: 744135
east: 749436
nsres: 28.5
ewres:
Markus and Glynn,
> I have submitted that as it now no longer crashes.
Great!
>But it's (for me)
> either extremely
> slow (remaining at 0%) or endless looping.
> Maning, does it now work for you (hope you can update from SVN)?
Shucks, don't know installing via SVN yet. Still struggling to use
G
Hi,
>From a classification process we are developing, we created a
unsupervised classification from the image. We then want to select
random locations from the unsup raster as a training area for the 2nd
level of classification. I think it can be done by: r.to.vect,
v.random, v.extract. The pro
Hi,
I know it should not be really practiced, but how accurate is the areal
calculations (hectares) in v.report when the projection is lon/la wgs84?
I have a vector data that covers several utm grids that I want to
compute "hectarage".
cheers,
maning
___
Thank you for the clarification.
On Mon, Jun 9, 2008 at 4:52 PM, Glynn Clements <[EMAIL PROTECTED]> wrote:
>
> Maning Sambale wrote:
>
>> I know it should not be really practiced, but how accurate is the areal
>> calculations (hectares) in v.report when the projection i
To add info to this thread:
Some arc users said it its dependent on the snapping threshold or
smoothing option in the polygon creation. Polygons will be "blocky"
when this options are not enabled.
cheers,
maning
--
|-|--|
| __.-._
Hi,
I have installed grass63 fro les-ejk repo on a gutsy. I then checkout
from svn the releasebranch_6_3 rev. 31664
Know doing:
./configure ...
I get this error:
Unable to locate curses includes.
Any ideas?
maning
--
|-|--|
|
e"
#include "confdefs.h"
#include
On Tue, Jun 10, 2008 at 6:21 PM, maning sambale
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have installed grass63 fro les-ejk repo on a gutsy. I then checkout
> from svn the releasebranch_6_3 rev. 31664
>
> Know doing:
> ./c
Thanks Hamish.
Following the link
> http://svn.debian.org/wsvn/pkg-grass/packages/grass/trunk/debian/control?op=file
I installed all dependencies from hardy's default repo.
The configure logs this tells me:
configure:8436: checking whether to use Tcl/Tk
configure:8456: checking for location of Tc
Wohoo! Now it running.
One last question, I have checked out from svn the grass-addons
particularly the imagery. How do I add them in the compilation?
cheers,
maning
On Wed, Jun 11, 2008 at 12:28 PM, Glynn Clements
<[EMAIL PROTECTED]> wrote:
>
> Hamish wrote:
>
>> these instructions should help
, maning sambale
<[EMAIL PROTECTED]> wrote:
> Wohoo! Now it running.
>
> One last question, I have checked out from svn the grass-addons
> particularly the imagery. How do I add them in the compilation?
>
> cheers,
> maning
>
> On Wed, Jun 11, 2008 at 12:28 PM, Glynn Cle
Hi,
Not entirely GRASS specific.
I was asked by our office to purchase a new PC as a GIS workstation.
We have existing PCs already on various specs and configuration
(mostly windows, some mac, 1 linux). For the new PC, I was advised to
get the latest and greatest in the market. Naturally, I pref
y good results, however, adding the -s flag
(for cloud shadows), sometimes misclassify water bodies such as
rivers.
image: http://farm4.static.flickr.com/3126/2571893895_0a73dd3380.jpg
cheers,
maning
On 6/2/08, maning sambale <[EMAIL PROTECTED]> wrote:
> Markus,
>
>> AFAIK LANDSA
Hi,
After implementing gain and bias correction and topographic
correction, I get very low values for landsat data data
for example range of values of band1:
GRASS 6.3.1svn (p112r056):~ > r.info lsat7_2000.toar.1 -r
min=0.030303
max=0.372067
[Raster MASK present]
GRASS 6.3.1svn (p112r056):~ > r.i
Thanks! Multiplying by 1000 with r.mapcalc gives better results. Any
chance adding floating points (FCELL) to i.cluster?
On 6/16/08, Markus Neteler <[EMAIL PROTECTED]> wrote:
> On Mon, Jun 16, 2008 at 11:59 AM, maning sambale
> <[EMAIL PROTECTED]> wrote:
>> After im
On 6/18/08, Glynn Clements <[EMAIL PROTECTED]> wrote:
>
> maning sambale wrote:
>
>> >> After implementing gain and bias correction and topographic
>> >> correction, I get very low values for landsat data data
>> >> for example range of va
On 6/19/08, Nikos Alexandris <[EMAIL PROTECTED]> wrote:
> On Wed, 2008-06-18 at 22:41 +0100, Glynn Clements wrote:
>> Glynn Clements wrote:
>>
>> > > Thanks! Multiplying by 1000 with r.mapcalc gives better results. Any
>> > > chance adding floating points (FCELL) to i.cluster?
>> >
>> > I had a b
Hi,
I'm getting the same errors as this one:
http://lists.osgeo.org/pipermail/grass-user/2005-April/028536.html
Why is this so? I'm running on 12 classes on 8 rasters in a group.
cheers,
maning
--
|-|--|
| __.-._ |"Ohhh. Great war
Nikos,
thank you fo testing seems it's working OK now. I will test it myself later.
maning
On 6/20/08, Nikos Alexandris <[EMAIL PROTECTED]> wrote:
> Not sure if this helps... (!)
> ---
>
>> r.univar change_pca_250m_06.239_07.242.2_test
> 100%
> total null and non-null cells: 247720
> total null
Hi,
Here's the process I plan to do for my image classification
1. Create an unsupervised classification from TCAP images to get
clusters of pure pixel values.
2. Convert to vector.
3. Create a random location of vector points.
4. From the converted vector layer, select random polygons
(approxima
0.00 0.00 -0.03 -0.02
class 7 0.00 0.00 -0.03 -0.02
class 8 0.00 0.00 -0.03 -0.02
class 9 0.00 0.00 -0.02 -0.01
class 10 0.00 0.00 -0.02 -0.01
class 11 0.00 0.00 -0.01 -0.01
Thanks!
maning
On 6/23/08, maning sambale <[EMAIL PROTECTED]> wrote:
&g
I get thios message with v.in.gns:
Converted 74072 place names.
Scanning input for column types...
Unparsable latitude value: LAT
Unable to open vector map <[EMAIL PROTECTED]> on topology level 2
AFAIK is used the original data from downloaded from GNS Repo, sample data:
RCUFIUNILATLONGDMS_LATDM
gdal
libgdal1.5.0.so.1 (libc6) => /usr/lib/libgdal1.5.0.so.1
libgdal1.5.0.so (libc6) => /usr/lib/libgdal1.5.0.so
libgdal1.4.0.so.1 (libc6) => /usr/lib/libgdal1.4.0.so.1
cheers,
maning
On 7/2/08, Markus Neteler <[EMAIL PROTECTED]> wrote:
> On Fri, Jun 27, 2008 at 4:26 AM, m
Hi,
I'm also experiencing the same problem from todays's svn checkout
I'm using ubuntu hardy. I have the same configuration with dokotoreas
cheers,
maning
On 7/2/08, doktoreas <[EMAIL PROTECTED]> wrote:
>
> Hello everybody.
>
> Building today svn checkout, I have this error with gdal-config:
> c
+1 on the ps.map cookbook
I can provide my ps.map files. Some ideas:
1. Techniques in making atlas, like a script that can use a single
ps.map config to a number of regions to create a map atlas expanding
the ps.atlas script.
2. More http://grass.osgeo.org/wiki/AreaFillPatterns for
landuse/cove
I just updated and compiled to day. Seems to work now.
maning
On 7/7/08, Brian Bishop <[EMAIL PROTECTED]> wrote:
> Still had this issue with:
> --with-includes
>
> Found workaround by changing the first line in gdal-config;
> >From this:
> CONFIG_LIBS="-L/usr/lib -lgdal1.5.0"
> To this:
> CONFIG
Hi,
I have patched a polygon and a line vector. Then I cleaned all the
overshoots and dangles. What I want is to remove all the centroids
and start from scratch. I have a point vector which will be used as
the centroids. And finally, query polygon to get only the polys with
centroids.
V.clean
On 7/14/08, Maciej Sieczka <[EMAIL PROTECTED]> wrote:
> maning sambale pisze:
>
>> V.clean options only removes duplicate centroids (rmdac) but not for
>> all the centroids.
>>
>> any ideas?
>
> v.edit tool=delete
Doh! Thanks! That's my GRASS modu
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