[GRASS-user] GUI freeze when trying to change legend

GRASS GRASS user
1

On Sep 29, 2009, at 5:14 AM, grass-user-request@lists.osgeo.org wrote:

Date: Tue, 29 Sep 2009 07:07:24 -0400
From: Michael Denslow <michael.denslow@gmail.com>
Subject: [GRASS-user] GUI freeze when trying to change legend
To: grass-user@lists.osgeo.org
Message-ID:
       <b440a3f80909290407g61ffa161iaa933697ec9d1afb@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Dear Grass,

I am having a problem when I try to change the legend for my raster
file using to GUI. This happens even if I select a new legend to add.
As soon as I select the raster map from the list Grass freezes for
several minutes.

Perhaps it is a problem with the raster file or the rules file,
however it runs fine when I run the command in the terminal. I would
like to do this in the GUI since I am not sure how to do all of my map
resizing and saving as .tif from the command line.

Can someone please advise me on this?

I am using Grass 6.4 with standard GUI (not Python)
System is Mac OS 10.6.1

Thanks in advance for your time,

Michael

  I see that you are using Snow Leopard, which has Python 2.5.1 and 2.6 on it. It can also have a couple different wxpython versions. William Kyngesburye has worked out special instructions for compiling on Snow Leopard.

If you are not using a recently compiled binary (after mid-September), you will have problems.

My guess is that this is related to ticket: http://trac.osgeo.org/grass/ticket/753. This is caused when you compile GRASS with more than one version of python on your Mac. In these circumstances, there is an error in a display widget (PseudoDC). The whole issue is complicated but I can explain more if you are interested in the intricacies of the code.

The fixes are to either
1) find the second version of Python and any vestiges of a second wxpython and delete them (sometimes harder than it seems, and especially complicated with Snow Leopard with needs 2 official Python versions), make distclean, and recompile. Or
2) bundle wxpython with GRASS.

The second option guarantees that you are running with the version of wxpython that you compiled with and that all parts of GRASS are using the same wxpython. I'm recommending bundling wxpython with all Mac binaries to avoid this and other problems.

Michael

2

Thanks Michael,

Dear Grass,

I am having a problem when I try to change the legend for my raster
file using to GUI. This happens even if I select a new legend to add.
As soon as I select the raster map from the list Grass freezes for
several minutes.

Perhaps it is a problem with the raster file or the rules file,
however it runs fine when I run the command in the terminal. I would
like to do this in the GUI since I am not sure how to do all of my map
resizing and saving as .tif from the command line.

Can someone please advise me on this?

I am using Grass 6.4 with standard GUI (not Python)
System is Mac OS 10.6.1

Thanks in advance for your time,

Michael

I see that you are using Snow Leopard, which has Python 2.5.1 and 2.6 on
it. It can also have a couple different wxpython versions. William
Kyngesburye has worked out special instructions for compiling on Snow
Leopard.

I installed GRASS on my new computer from this page a week or so ago.
http://www.kyngchaos.com/software:grass/

If you are not using a recently compiled binary (after mid-September), you
will have problems.

My guess is that this is related to ticket:
http://trac.osgeo.org/grass/ticket/753. This is caused when you compile
GRASS with more than one version of python on your Mac. In these
circumstances, there is an error in a display widget (PseudoDC). The whole
issue is complicated but I can explain more if you are interested in the
intricacies of the code.

As far as I can tell this seems to be a similar problem.

The fixes are to either
1) find the second version of Python and any vestiges of a second wxpython
and delete them (sometimes harder than it seems, and especially complicated
with Snow Leopard with needs 2 official Python versions), make distclean,
and recompile. Or

Indeed! I have no idea how to find these files and I fear that I will
really mess something up here.

2) bundle wxpython with GRASS.

Unfortunately I don't know how to do this. On the page I listed above
it says that wxpython is included in the GRASS install. I didn't think
that I was using the Python GUI but perhaps I am misunderstanding
something here.
When I open GRASS I hit return to load the GUI I don't run "g.gui wxpython".
Is there an idiots guide to on how to bundle wxpython?

The second option guarantees that you are running with the version of
wxpython that you compiled with and that all parts of GRASS are using the
same wxpython. I'm recommending bundling wxpython with all Mac binaries to
avoid this and other problems.

Thanks for this,
Michael

--
Michael Denslow

Graduate Student
I.W. Carpenter Jr. Herbarium [BOON]
Department of Biology
Appalachian State University
Boone, North Carolina U.S.A.

-- AND --

Communications Manager
Southeast Regional Network of Expertise and Collections
sernec.org

3

Perhaps a stupid question on my part. Did you download the Snow Leopard version of GRASS from William Kyngesburye's site? Did you download all of his current frameworks?

Bundling is something you do when you compile it. Compiling is not hard but you shouldn't need to do it. You can download versions that should work on your system from my site too. It's not official but I try to produce regular binaries.

http://www.public.asu.edu/~cmbarton/files/grass_mac

Try the 6.4 binary.

Michael
______________________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University
Tempe, AZ 85287-2402
USA

voice: 480-965-6262; fax: 480-965-7671
www: http://csdc.asu.edu, http://shesc.asu.edu
    http://www.public.asu.edu/~cmbarton

On Sep 29, 2009, at 9:40 AM, Michael Denslow wrote:

Thanks Michael,

Dear Grass,

I am having a problem when I try to change the legend for my raster
file using to GUI. This happens even if I select a new legend to add.
As soon as I select the raster map from the list Grass freezes for
several minutes.

Perhaps it is a problem with the raster file or the rules file,
however it runs fine when I run the command in the terminal. I would
like to do this in the GUI since I am not sure how to do all of my map
resizing and saving as .tif from the command line.

Can someone please advise me on this?

I am using Grass 6.4 with standard GUI (not Python)
System is Mac OS 10.6.1

Thanks in advance for your time,

Michael

I see that you are using Snow Leopard, which has Python 2.5.1 and 2.6 on
it. It can also have a couple different wxpython versions. William
Kyngesburye has worked out special instructions for compiling on Snow
Leopard.

I installed GRASS on my new computer from this page a week or so ago.
http://www.kyngchaos.com/software:grass/

If you are not using a recently compiled binary (after mid-September), you
will have problems.

My guess is that this is related to ticket:
http://trac.osgeo.org/grass/ticket/753. This is caused when you compile
GRASS with more than one version of python on your Mac. In these
circumstances, there is an error in a display widget (PseudoDC). The whole
issue is complicated but I can explain more if you are interested in the
intricacies of the code.

As far as I can tell this seems to be a similar problem.

The fixes are to either
1) find the second version of Python and any vestiges of a second wxpython
and delete them (sometimes harder than it seems, and especially complicated
with Snow Leopard with needs 2 official Python versions), make distclean,
and recompile. Or

Indeed! I have no idea how to find these files and I fear that I will
really mess something up here.

2) bundle wxpython with GRASS.

Unfortunately I don't know how to do this. On the page I listed above
it says that wxpython is included in the GRASS install. I didn't think
that I was using the Python GUI but perhaps I am misunderstanding
something here.
When I open GRASS I hit return to load the GUI I don't run "g.gui wxpython".
Is there an idiots guide to on how to bundle wxpython?

The second option guarantees that you are running with the version of
wxpython that you compiled with and that all parts of GRASS are using the
same wxpython. I'm recommending bundling wxpython with all Mac binaries to
avoid this and other problems.

Thanks for this,
Michael

--
Michael Denslow

Graduate Student
I.W. Carpenter Jr. Herbarium [BOON]
Department of Biology
Appalachian State University
Boone, North Carolina U.S.A.

-- AND --

Communications Manager
Southeast Regional Network of Expertise and Collections
sernec.org