[GRASS-dev] grass-dev Digest, Vol 82, Issue 57

GRASS GIS GRASS GIS developer
,
1

Hi,

Actually my requirement is to run Python script outside GRASS Python shell. For this i tried connecting to GRASS outside with Python following the GRASS-wiki instructions, but failed. Then i tried to connect to GRASS with OGR Python bindings, it too failed because gdal_grass plugin provided in OSGEO4W does not install in GRASS (they are considered obsolete in OSGEO4W). However i installed gdal1.6_grass with stable release of GRASS 6.4.3 (run with gdal latest version 1.9.x) in OSGEO4W. However, when checked for the installed packages, gdal_grass support is not provided. It is highly appreciated if it is included in the current OSGEO4W setup or any suggestion.

Cheers, Brian

···

On Sat, Dec 29, 2012 at 9:57 PM, Rashad M <mohammedrashadkm@gmail.com> wrote:

grass7.0 fails compilation at first and continues only after setting PYTHONPATH.

This becomes a routine for recompilation. Is there any work around to automatically pickup wxPython?

Here is my error log:

Started compilation: Sat Dec 29 21:46:17 IST 2012

Errors in:
/code/grass/grass70/gui/wxpython/animation
/code/grass/grass70/gui/wxpython/mapswipe
/code/grass/grass70/gui/wxpython/gmodeler
/code/grass/grass70/gui/wxpython/rlisetup
/code/grass/grass70/gui/wxpython/psmap
/code/grass/grass70/gui/wxpython/dbmgr
/code/grass/grass70/gui/wxpython/vdigit

In case of errors please change into the directory with error and run ‘make’.
If you get multiple errors, you need to deal with them in the order they
appear in the error log. If you get an error building a library, you will
also get errors from anything which uses the library.

Finished compilation: Sat Dec 29 21:53:10 IST 2012

wxpython is installed from ubuntu repos. so its in the default path

–

Regards,
Rashad

–

Regards,
Rashad

2

Did you tried new grass python API?. Before that could you tell what error you are getting?

[0] http://code.google.com/p/pygrass/
[1] http://www.ing.unitn.it/~zambelli/projects/pygrass/

···

On Mon, Dec 31, 2012 at 7:14 PM, Brian Sanjeewa Rupasinghe <jinkabs@gmail.com> wrote:

Hi,

Actually my requirement is to run Python script outside GRASS Python shell. For this i tried connecting to GRASS outside with Python following the GRASS-wiki instructions, but failed. Then i tried to connect to GRASS with OGR Python bindings, it too failed because gdal_grass plugin provided in OSGEO4W does not install in GRASS (they are considered obsolete in OSGEO4W). However i installed gdal1.6_grass with stable release of GRASS 6.4.3 (run with gdal latest version 1.9.x) in OSGEO4W. However, when checked for the installed packages, gdal_grass support is not provided. It is highly appreciated if it is included in the current OSGEO4W setup or any suggestion.

Cheers, Brian

On Sun, Dec 30, 2012 at 1:30 AM, <grass-dev-request@lists.osgeo.org> wrote:

Send grass-dev mailing list submissions to
grass-dev@lists.osgeo.org

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.osgeo.org/mailman/listinfo/grass-dev
or, via email, send a message with subject or body ‘help’ to
grass-dev-request@lists.osgeo.org

You can reach the person managing the list at
grass-dev-owner@lists.osgeo.org

When replying, please edit your Subject line so it is more specific
than “Re: Contents of grass-dev digest…”

Today’s Topics:

  1. Re: GRASS Vector Support (J?rgen E. Fischer)
  2. Re: Grass7 GUI compilation failed (Rashad M)

---------- Forwarded message ----------
From: “Jürgen E.” Fischer <jef@norbit.de>
To: grass-dev@lists.osgeo.org
Cc:
Date: Sat, 29 Dec 2012 17:42:00 +0100
Subject: Re: [GRASS-dev] GRASS Vector Support
Hi Brian,

On Sat, 29. Dec 2012 at 10:58:19 +0530, Brian Sanjeewa Rupasinghe wrote:

I need to automate some GRASS functions in my research work. If there is a
possibility to build gdal_grass plugin for Windows it is highly
appreciated. Even the Python scripts that call GRASS functions from
outside for MS_Windows do not connect with GRASS even though the
instructions provided in the GRASS wiki is followed. I have posted this
problem in grass-windows forum and finally advised me to bring the problem
down to grass-dev list.

And you are positive that the GDAL plugin would help? The above description
sounds like a more general problem and I don’t see any connection to the
missing plugin at all.

Does GRASS itself need the GDAL GRASS plugin at all?

Jürgen

–
Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31
Dipl.-Inf. (FH) Rheinstraße 13 Fax. +49-4931-918175-50
Software Engineer D-26506 Norden http://www.norbit.de
committ(ed|ing) to Quantum GIS IRC: jef on FreeNode

–
norBIT Gesellschaft fuer Unternehmensberatung und Informationssysteme mbH
Rheinstrasse 13, 26506 Norden
GF: Jelto Buurman, HR: Amtsgericht Emden, HRB 5502

---------- Forwarded message ----------
From: Rashad M <mohammedrashadkm@gmail.com>
To: grass-dev@lists.osgeo.org
Cc:
Date: Sat, 29 Dec 2012 23:55:17 +0530
Subject: Re: [GRASS-dev] Grass7 GUI compilation failed

here is output from v.digit
make

ml
make[6]: Entering directory /code/grass/grass70/gui/wxpython/vdigit' GISRC=/code/grass/grass70/dist.x86_64-unknown-linux-gnu/demolocation/.grassrc70 GISBASE=/code/grass/grass70/dist.x86_64-unknown-linux-gnu PATH="/code/grass/grass70/dist.x86_64-unknown-linux-gnu/bin:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/bin:$PATH" PYTHONPATH="/code/grass/grass70/dist.x86_64-unknown-linux-gnu/etc/python:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/etc/python:$PYTHONPATH" LD_LIBRARY_PATH="/code/grass/grass70/dist.x86_64-unknown-linux-gnu/bin:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/lib:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/lib:" LC_ALL=C /code/grass/grass70/dist.x86_64-unknown-linux-gnu/scripts/g.gui.vdigit --html-description < /dev/null | grep -v '</body>\|</html>' > g.gui.vdigit.tmp.html Traceback (most recent call last): File "/code/grass/grass70/dist.x86_64-unknown-linux-gnu/scripts/g.gui.vdigit", line 39, in <module> import wx ImportError: No module named wx make[6]: *** [g.gui.vdigit.tmp.html] Error 1 rm g.gui.vdigit.tmp.html make[6]: Leaving directory /code/grass/grass70/gui/wxpython/vdigit’
make[5]: *** [guiscript] Error 2

grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev

grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev

–

Regards,
Rashad

On Sat, Dec 29, 2012 at 9:57 PM, Rashad M <mohammedrashadkm@gmail.com> wrote:

grass7.0 fails compilation at first and continues only after setting PYTHONPATH.

This becomes a routine for recompilation. Is there any work around to automatically pickup wxPython?

Here is my error log:

Started compilation: Sat Dec 29 21:46:17 IST 2012

Errors in:
/code/grass/grass70/gui/wxpython/animation
/code/grass/grass70/gui/wxpython/mapswipe
/code/grass/grass70/gui/wxpython/gmodeler
/code/grass/grass70/gui/wxpython/rlisetup
/code/grass/grass70/gui/wxpython/psmap
/code/grass/grass70/gui/wxpython/dbmgr
/code/grass/grass70/gui/wxpython/vdigit

In case of errors please change into the directory with error and run ‘make’.
If you get multiple errors, you need to deal with them in the order they
appear in the error log. If you get an error building a library, you will
also get errors from anything which uses the library.

Finished compilation: Sat Dec 29 21:53:10 IST 2012

wxpython is installed from ubuntu repos. so its in the default path

–

Regards,
Rashad

–

Regards,
Rashad

3

Hi Thanks,

My requirement is to run GRASS commands outside GRASS with Python 2.7.3 installed in Windows 7 machine with
OGR Python bindings. According to sources, there are two possible ways to connect to GRASS data through external Python.
The first method is described in http://grasswiki.osgeo.org/wiki/GRASS_and_Python. However when i set the environment variables in my machine according to above wiki, I cannot connect to GRASS 6.4.3 with Python 2.7.3. When i use following
two imports:

import os, sys

From grass.lib import grass

For the second one, it gives an error message saying “No module named grass.lib”

Then using the second method, i tried to connect to GRASS with GDAL/OGR grass support. For this i needed to have gdal_grass plugin installed with GRASS. So i compiled GRASS and gdal_grass with OSGEO4W. The stable release of
GRASS 6 in OSGEO4W uses gdal 1.9 and the gdal_grass plugin for latest version is not available in OSGEO4W. The only available plugins are for gdal 1.5 and 1.6 versions under OBSOLETE category of OSGEO4W. I installed both of these and checked GDAL/OGR GRASS support is available within GRASS by typing at GRASS command shell the following:

ogrinfo --formats
gdalinfo --formats

But i cannot find gdal_grass support over there. Had it been there i could have read GRASS data as explained by the following code provided my Python has OGR python bindings:

from osgeo import ogr
ds = ogr.Open('D:/UEL/GrassGISDB/SLD99/LBS/vector/CluterCleaned/head')
layer = ds.GetLayer(0)


However when i execute above this is the error i get because of the non-availability of gdal_grass plug-in


Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    layer = ds.GetLayer(0)
AttributeError: 'NoneType' object has no attribute 'GetLayer'
···

On Mon, Dec 31, 2012 at 7:14 PM, Brian Sanjeewa Rupasinghe <jinkabs@gmail.com> wrote:

Hi,

Actually my requirement is to run Python script outside GRASS Python shell. For this i tried connecting to GRASS outside with Python following the GRASS-wiki instructions, but failed. Then i tried to connect to GRASS with OGR Python bindings, it too failed because gdal_grass plugin provided in OSGEO4W does not install in GRASS (they are considered obsolete in OSGEO4W). However i installed gdal1.6_grass with stable release of GRASS 6.4.3 (run with gdal latest version 1.9.x) in OSGEO4W. However, when checked for the installed packages, gdal_grass support is not provided. It is highly appreciated if it is included in the current OSGEO4W setup or any suggestion.

Cheers, Brian

On Sun, Dec 30, 2012 at 1:30 AM, <grass-dev-request@lists.osgeo.org> wrote:

Send grass-dev mailing list submissions to
grass-dev@lists.osgeo.org

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.osgeo.org/mailman/listinfo/grass-dev
or, via email, send a message with subject or body ‘help’ to
grass-dev-request@lists.osgeo.org

You can reach the person managing the list at
grass-dev-owner@lists.osgeo.org

When replying, please edit your Subject line so it is more specific
than “Re: Contents of grass-dev digest…”

Today’s Topics:

  1. Re: GRASS Vector Support (J?rgen E. Fischer)
  2. Re: Grass7 GUI compilation failed (Rashad M)

---------- Forwarded message ----------
From: “Jürgen E.” Fischer <jef@norbit.de>
To: grass-dev@lists.osgeo.org
Cc:
Date: Sat, 29 Dec 2012 17:42:00 +0100
Subject: Re: [GRASS-dev] GRASS Vector Support
Hi Brian,

On Sat, 29. Dec 2012 at 10:58:19 +0530, Brian Sanjeewa Rupasinghe wrote:

I need to automate some GRASS functions in my research work. If there is a
possibility to build gdal_grass plugin for Windows it is highly
appreciated. Even the Python scripts that call GRASS functions from
outside for MS_Windows do not connect with GRASS even though the
instructions provided in the GRASS wiki is followed. I have posted this
problem in grass-windows forum and finally advised me to bring the problem
down to grass-dev list.

And you are positive that the GDAL plugin would help? The above description
sounds like a more general problem and I don’t see any connection to the
missing plugin at all.

Does GRASS itself need the GDAL GRASS plugin at all?

Jürgen

–
Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31
Dipl.-Inf. (FH) Rheinstraße 13 Fax. +49-4931-918175-50
Software Engineer D-26506 Norden http://www.norbit.de
committ(ed|ing) to Quantum GIS IRC: jef on FreeNode

–
norBIT Gesellschaft fuer Unternehmensberatung und Informationssysteme mbH
Rheinstrasse 13, 26506 Norden
GF: Jelto Buurman, HR: Amtsgericht Emden, HRB 5502

---------- Forwarded message ----------
From: Rashad M <mohammedrashadkm@gmail.com>
To: grass-dev@lists.osgeo.org
Cc:
Date: Sat, 29 Dec 2012 23:55:17 +0530
Subject: Re: [GRASS-dev] Grass7 GUI compilation failed

here is output from v.digit
make

ml
make[6]: Entering directory /code/grass/grass70/gui/wxpython/vdigit' GISRC=/code/grass/grass70/dist.x86_64-unknown-linux-gnu/demolocation/.grassrc70 GISBASE=/code/grass/grass70/dist.x86_64-unknown-linux-gnu PATH="/code/grass/grass70/dist.x86_64-unknown-linux-gnu/bin:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/bin:$PATH" PYTHONPATH="/code/grass/grass70/dist.x86_64-unknown-linux-gnu/etc/python:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/etc/python:$PYTHONPATH" LD_LIBRARY_PATH="/code/grass/grass70/dist.x86_64-unknown-linux-gnu/bin:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/lib:/code/grass/grass70/dist.x86_64-unknown-linux-gnu/lib:" LC_ALL=C /code/grass/grass70/dist.x86_64-unknown-linux-gnu/scripts/g.gui.vdigit --html-description < /dev/null | grep -v '</body>\|</html>' > g.gui.vdigit.tmp.html Traceback (most recent call last): File "/code/grass/grass70/dist.x86_64-unknown-linux-gnu/scripts/g.gui.vdigit", line 39, in <module> import wx ImportError: No module named wx make[6]: *** [g.gui.vdigit.tmp.html] Error 1 rm g.gui.vdigit.tmp.html make[6]: Leaving directory /code/grass/grass70/gui/wxpython/vdigit’
make[5]: *** [guiscript] Error 2

grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev

grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev

–

Regards,
Rashad

On Sat, Dec 29, 2012 at 9:57 PM, Rashad M <mohammedrashadkm@gmail.com> wrote:

grass7.0 fails compilation at first and continues only after setting PYTHONPATH.

This becomes a routine for recompilation. Is there any work around to automatically pickup wxPython?

Here is my error log:

Started compilation: Sat Dec 29 21:46:17 IST 2012

Errors in:
/code/grass/grass70/gui/wxpython/animation
/code/grass/grass70/gui/wxpython/mapswipe
/code/grass/grass70/gui/wxpython/gmodeler
/code/grass/grass70/gui/wxpython/rlisetup
/code/grass/grass70/gui/wxpython/psmap
/code/grass/grass70/gui/wxpython/dbmgr
/code/grass/grass70/gui/wxpython/vdigit

In case of errors please change into the directory with error and run ‘make’.
If you get multiple errors, you need to deal with them in the order they
appear in the error log. If you get an error building a library, you will
also get errors from anything which uses the library.

Finished compilation: Sat Dec 29 21:53:10 IST 2012

wxpython is installed from ubuntu repos. so its in the default path

–

Regards,
Rashad

–

Regards,
Rashad

4

Hi,

2013/1/1 Brian Sanjeewa Rupasinghe <jinkabs@gmail.com>:

http://grasswiki.osgeo.org/wiki/GRASS_and_Python. However when i set the
environment variables in my machine according to above wiki, I cannot
connect to GRASS 6.4.3 with Python 2.7.3. When i use following
two imports:

import os, sys

From grass.lib import grass

For the second one, it gives an error message saying "No module named
grass.lib"

did you set up PYTHONPATH or modified sys.path? Eg.

sys.path.append(r"C:\OSGeo4W\apps\grass7.0svn\etc\python") or something similar?

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

5

You mean adding this in env.bat file?

On Tue, Jan 1, 2013 at 10:28 PM, Martin Landa <landa.martin@gmail.com> wrote:

Hi,

2013/1/1 Brian Sanjeewa Rupasinghe <jinkabs@gmail.com>:

Yes, I added PYTHONPATH inenv.bat file. Here is the env.bat file i modified.
Newly added lines are below rem #—

what says

print sys.path

?

–
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

6

It gives a message: “unable to initialize device PRN”

On Tue, Jan 1, 2013 at 11:04 PM, Brian Sanjeewa Rupasinghe <jinkabs@gmail.com> wrote:

You mean adding this in env.bat file?

On Tue, Jan 1, 2013 at 10:28 PM, Martin Landa <landa.martin@gmail.com> wrote:

Hi,

2013/1/1 Brian Sanjeewa Rupasinghe <jinkabs@gmail.com>:

Yes, I added PYTHONPATH inenv.bat file. Here is the env.bat file i modified.
Newly added lines are below rem #—

what says

print sys.path

?

–
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

7

Hi,

2013/1/1 Brian Sanjeewa Rupasinghe <jinkabs@gmail.com>:

You mean adding this in env.bat file?

no I mean if you run your python script with exported shell variables.
Try to print in this script `sys.path` to check if
`%GISBASE%\etc\python` is there.

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa