On Thu, Apr 11, 2013 at 8:58 AM, Hamish hamis...@yahoo.com wrote:
Johannes wrote:
I just tested it again and realized this problem is
not related to the placeholder in the python code,
but probably an other issue of my pythoncode line
nothing is update when use:
Hi all,
I'm reading the GRASS7 programmer's manual, to update my experience with
GRASS (I'm going to use it for some network analysis, and probably I will
need to extend it)
Looking at the topology examples [1] I fill a bit confused by the types
of nodes and lines, which vary between the different
Hi all,
Thank you Hamish, including the option input=- in the python line (for
GRASS7) solved the problem.
Now I get an update/entry in my attribute table. This is a different
behavior from
grass65 where this additional option is not needed.
/johannes
On Thu, Apr 11, 2013 at 11:15 AM, Markus
Hi,
I would like to check if the file defined as output in a python script
already exists and fire an error when it exists and the overwrite flag is
not set. Furhtermore I'd like
to check this already in the beginning before all calculations in the
script are executed. I thought about something
Going on grasping the data structures...
- Point example: a point doesn't have nodes but have a line (P_LINE),
with type GV_POINT.
It's enough for me to get confused :)
A P_LINE structure has a void * topo opaque element [2], which will point
to the relative topology structure depending
Johannes Radinger wrote:
Thank you Hamish, including the option input=- in the python line (for
GRASS7) solved the problem.
Why read the command from stdin rather than using sql=...? E.g.:
grass.write_command(db.execute, sql = UPDATE my points SET prob=100)
--
Glynn Clements
Johannes Radinger wrote:
I would like to check if the file defined as output in a python script
already exists and fire an error when it exists and the overwrite flag is
not set. Furhtermore I'd like
to check this already in the beginning before all calculations in the
script are executed.
Dear all,
I recently switched to linux (Mint KDE) and I simply don't find how to start
the command line terminal of grass. Could someone help me?
thanks
Lucien
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Hey Lucien,
If you start a new terminal and start grass (by typing grass), you will
be able to execute grass commands from the terminal.
Success!
Miguel
2013/4/11 BLANDENIER Lucien lucien.blanden...@unine.ch
Dear all,
I recently switched to linux (Mint KDE) and I simply don't find how to
I apologize for the naive question but I haven't been able to find an
explanation for the meaning of the square boxes that appear around my lines
layer's nodes, when I display topological informations on the map.
I thought they could indicate errors, but my layer appear to be
topologically ok.
On Thu, Apr 11, 2013 at 3:21 PM, G. Allegri gioha...@gmail.com wrote:
I apologize for the naive question but I haven't been able to find an
explanation for the meaning of the square boxes that appear around my lines
layer's nodes, when I display topological informations on the map.
These
Thank you! The grass.script.overwrite() function was the one I was looking
for. :)
On Thu, Apr 11, 2013 at 1:00 PM, Glynn Clements gl...@gclements.plus.comwrote:
Johannes Radinger wrote:
I would like to check if the file defined as output in a python script
already exists and fire an
Oh yes, of course I could use the sql= option... I just overlooked that
after moving
from GRASS6.5 where this option is not yet existing. Thank you ...
/Johannes
On Thu, Apr 11, 2013 at 12:47 PM, Glynn Clements
gl...@gclements.plus.comwrote:
Johannes Radinger wrote:
Thank you Hamish,
grass --help tells you to use grass -text
Marco
Am 11.04.2013 14:30, schrieb José Miguel Barrios:
Hey Lucien,
If you start a new terminal and start grass (by typing grass), you
will be able to execute grass commands from the terminal.
Success!
Miguel
2013/4/11 BLANDENIER Lucien
Hello All,
I am trying to find a way to process a fuzzy K-mean cluster using multiple
rasters/grids in GRASS. Is anyone aware of a grass add-on or another simple
process I can use to accomplish this?
Thanks,
Robert Brown
PhD Student
Purdue University
Department of Agronomy
Robert
I would recommend a combination of GRASS and R (http://cran.r-project.org/).
R has fuzzy K-mean cluster capability, using the R addon package spgrass6
to read/write to/from GRASS and R. Also, see this:
http://www.r-bloggers.com/fuzzy-clustering-with-fanny/ and this:
On Wed, Apr 10, 2013 at 1:06 PM, Adrian Kirilov
kirilov.adr...@gmail.com wrote:
Hello to all GRASS GIS users,
My name is Adrian Kirilov. I'm currently student and I'm making my thesis
this semester. I have to use GIS software for it and I decided to use GRASS
GIS. I have to work with
Hi Tom,
I am an avid R user and forgot about the spgrass6 addon. I have linked to grass
through R and read in my rasters with the following script. The process worked
beautifully and I appreciate you reminding me of the package and process!!!
Script for reading the rasters
###
Giovanni wrote:
I haven't been able to find an explanation for the meaning of
the square boxes that appear around my lines layer's nodes,
when I display topological informations on the map.
I thought they could indicate errors, but my layer appear to be
topologically ok.
they are just
Tom wrote:
I would recommend a combination of GRASS and R (http://cran.r-
project.org/). R has fuzzy K-mean cluster capability, using
the R addon package spgrass6 to read/write to/from GRASS and R.
see Roger's tutorial here:
http://grasswiki.osgeo.org/wiki/R_statistics
Hamish
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