Please ignore this question...
On Apr 5, 2010, at 9:34 PM, António M. Rodrigues wrote:
Hi,
when using v.rast.stats to get stats for a raster over a polygon
layer, I get the following error:
-
DBMI-DBF driver error:
Error while executing: 'ALTER TABLE caop09c2 ADD COLUMN a2_per0-10
Hi Richard and Daniel,
thanks for your answers. I don't think its as easy as building a convex hull
around the endpoints of the networks segments.
Have a look at the picture example of v.hull [1] in the docs. A convex hull
only connects the outer points of a point vector and doesn't care about
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
Hello to all,
I trying to classify remote sensing imagery, and
I thought to try the i.smap module, but
when I run the i.gensigset, I always
get the same problem:
...
Removed a singular subsignature number 1 (9 remain)
Removed a singular subsignature number 1 (8 remain)
Removed a singular
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 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
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
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 February 11.
Markus Metz fixed them on Feb 17 :)
http://trac.osgeo.org/grass/browser/grass/branches/develbranch_6/vector/lidar
Cheers
Markus
joel dinis wrote:
I trying to classify remote sensing imagery, and
I thought to try the i.smap module, but
when I run the i.gensigset,
Please, could you copy-paste the exact command you used?
Does the maxsig= (e.g. maxsig=20) make any difference?
Nikos
I always
get the same problem:
...
Greetings
I need to use a newer version of PROJ in GRASS6.4 (I have 4.6.1 and I need
at least 4.6.1-5). Does GRASS6.4 supports newer versions of PROJ (even 4.7)?
Thanks
Best regards
Nikos
___
grass-user mailing list
grass-user@lists.osgeo.org
Hello Nikos,
In fact, I put maxsig=30.
i.gensigset trainingmap=amostras group=grupo subgroup=subgrupo
signaturefile=assinaturas maxsig=30
JD
On Tue, Apr 6, 2010 at 4:04 PM, Nikos Alexandris
nikos.alexand...@felis.uni-freiburg.de wrote:
joel dinis wrote:
I trying to classify remote sensing
On Tue, Apr 6, 2010 at 4:57 PM, Nikos Dumakis nikosdu1...@gmail.com wrote:
Greetings
I need to use a newer version of PROJ in GRASS6.4 (I have 4.6.1 and I need
at least 4.6.1-5). Does GRASS6.4 supports newer versions of PROJ (even 4.7)?
Yes. I am using 4.7.
Markus
(sorry for re-sorting the message, just to keep it easy to follow-up)
joel dinis:
I trying to classify remote sensing imagery, and
I thought to try the i.smap module, but
when I run the i.gensigset,
Nikos Alexandris:
Please, could you copy-paste the exact
joel dinis:
In fact, I put maxsig=30.
i.gensigset trainingmap=amostras group=grupo subgroup=subgrupo
signaturefile=assinaturas maxsig=30
NikosA:
What about smaller maxsig's, like:
- maxsig=25
- maxsig=20
- maxsig=15
and even smaller than 10 perhaps since the algorithm indicates 9
Nikos Alexandris wrote:
(sorry for re-sorting the message, just to keep it easy to follow-up)
joel dinis:
I trying to classify remote sensing imagery, and
I thought to try the i.smap module, but
when I run the i.gensigset,
Nikos Alexandris:
It remains.
I tried, as you sugested, and the problem
remains.
...
Clustering class 9 (4994 pixels)...
Removed a singular subsignature number 1 (24 remain)
Removed a singular subsignature number 1 (23 remain)
Removed a singular subsignature number 1 (22 remain)
Removed a singular subsignature
On Tue, Apr 6, 2010 at 5:42 PM, joel dinis dinis.j...@gmail.com wrote:
It remains.
I tried, as you sugested, and the problem
remains.
...
Clustering class 9 (4994 pixels)...
...
Number of subclasses is 0
i.gensigset complete.
Yes, this happen to all the classes...
Maybe is something
Hello Micha,
I put r.info -r amostras
as sugested, get the following:
min=112
max=512
(This values are index to my classes.)
JD
On Tue, Apr 6, 2010 at 4:39 PM, Micha Silver mi...@arava.co.il wrote:
Nikos Alexandris wrote:
(sorry for re-sorting the message, just to keep it easy to
Thanks Markus
And can it be a problem using newer versions of PROJ (4.7) with older of
GDAL? (1.6.3.2) for instance supporting certain operations for newly
supported EPSG systems?
Thank you all
Nikos
On Tue, Apr 6, 2010 at 4:28 PM, Markus Neteler nete...@osgeo.org wrote:
On Tue, Apr 6, 2010 at
On Tue, Apr 6, 2010 at 6:04 PM, Nikos Dumakis nikosdu1...@gmail.com wrote:
Thanks Markus
And can it be a problem using newer versions of PROJ (4.7) with older of
GDAL? (1.6.3.2) for instance supporting certain operations for newly
supported EPSG systems?
Best asked on the GDAL list, I
--%---
...
Removed a singular subsignature number 1 (1 remain)
Unreliable clustering. Try a smaller initial number of clusters
--%---
As a side note:
while reading the manual of i.gensigset, I think it would be better to
rephrase either the above output message or the the manual directly to
Hi,
I'm working on Windows XP SP3 and Grass 6.4.0RC6. When I try to run
r.sim.water according to the example on page 163 in the book Open
Source GIS a GRASS GIS approach (3rd Ed.), I get one of those Windows
errors that want to 'tell Microsoft about this problem'.
The details of the error report
Hi,
I have just started writing scripts using python for Grass on Mac. I copied
the example below from the library and ran it.
#!/usr/bin/env python
#%module
#% description: Checks if vector map is 3D
#% keywords: vector
#%end
#%option
#% key: map
#% type: string
#% gisprompt:
joel dinis wrote:
Hello Micha,
I put r.info http://r.info/ -r amostras
as sugested, get the following:
min=112
max=512
So, if I understand correctly, you are trying to classify into 400
separate classes?!
I'm a beginner with image classification, and others with more
experience will know
On Tue, 2010-04-06 at 20:44 +0300, Micha Silver wrote:
joel dinis wrote:
Hello Micha,
I put r.info http://r.info/ -r amostras
as sugested, get the following:
min=112
max=512
So, if I understand correctly, you are trying to classify into 400
separate classes?!
I'm a beginner
NO NO NO!
I have 30 CORINE land cover classes to classify.
The number 512, for example, means 5.1.2, is a
nominal number, IS NOT an classe id.
But may be right: may be the way the classes are
represented in the system cause that problem. I'll test
that..
Thanks
JD
On Tue, Apr 6, 2010 at 6:44
Markus,
Thanks for your assistance and explanation. I ended up adding +1 and
multiplying by 100 the source raster
e.g.
r.mapcalc new_raster=(old_raster+1.0)*100
I also transformed the ndvi color table accordingly, and post it here if
anyone should wish to use it...
0.00 5 24 82
70.0
The first thing to check would be the file permission bits on the file
hi.py to be sure the execute bit is set. From your command line, just
type ls -al hi.py. The first 10 characters from the output should show
you what bits are set and you are looking for an x in the fourth
character. For
On Tue, 2010-04-06 at 20:59 +0100, joel dinis wrote:
NO NO NO!
I have 30 CORINE land cover classes to classify.
The number 512, for example, means 5.1.2, is a
nominal number, IS NOT an classe id.
But may be right: may be the way the classes are
represented in the system cause that
On Thu, Dec 17, 2009 at 11:52 AM, andry rustanto getux...@gmail.com wrote:
Dear All,
Please inform me how to do histogram matching in grass gis, thank you
indeed..
On Tue, 2010-01-12 at 07:21 +0100, Markus Neteler wrote:
In 2004, we had a master student implementing this. I could send
William Hudspeth wrote:
Markus,
Thanks for your assistance and explanation. I ended up adding +1 and
multiplying by 100 the source raster
e.g.
r.mapcalc new_raster=(old_raster+1.0)*100
I also transformed the ndvi color table accordingly, and post it here if
anyone should wish to use
claslite modules in GRASS?
I'm wondering if any GRASS users have been able to adapt a similar
workflow of Claslite within GRASS GIS.
http://claslite.ciw.edu/
Claslite is a suite of remote sensing modules developed by Carnegie
Institution for Science for rapid assessment of forest cover using
31 matches
Mail list logo
