Re: [GRASS-user] Opensuse 13.1 Grass

Angelos Tzotsos Sun, 30 Nov 2014 03:14:44 -0800

I am guessing you use a more recent version of numpy, than the 13.1default which is 1.7.In numpy 1.9+ they dropped support for "numeric" and wxWidgets isrecently patched for it:

http://trac.wxwidgets.org/ticket/16590


On 11/30/2014 11:13 AM, Tim Southern wrote:

Can confirm that Grass is apparently working under 13.1.  Grass crashed trying 
to save a screen image from the Grass toolbar command.  Rebooted ok.

Thanks.

Will try and install 13.2 again and try Grass.  Why was Numpy incomplete?

Kind regards

Tim
Tim Southern
17, Park Close,
Sonning Common,
Oxfordshire
RG4 9RY

On 30 Nov 2014, at 05:02, grass-user-requ...@lists.osgeo.org wrote:

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

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

You can reach the person managing the list at
        grass-user-ow...@lists.osgeo.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of grass-user digest..."


Today's Topics:

   1. Re: Grass 6.4, Opensuse 13.1/13.2 (Angelos Tzotsos)
   2. mapping interface (shashank khare)
   3. Re: how to change all cats in a vector line
      (C?sar Augusto Ram?rez Franco)
   4. Re: grass-user Digest, Vol 103, Issue 47 (Michael Barton)


----------------------------------------------------------------------

Message: 1
Date: Sun, 30 Nov 2014 05:16:07 +0200
From: Angelos Tzotsos <gcpp.kal...@gmail.com>
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] Grass 6.4, Opensuse 13.1/13.2
Message-ID: <547a8bf7.3090...@gmail.com>
Content-Type: text/plain; charset=windows-1252; format=flowed

Problem fixed on both openSUSE 13.1 and 13.2
Can you please confirm?

On 11/30/2014 01:43 AM, Angelos Tzotsos wrote:

Hi Tim,

I will have a look at this and report back.

Cheers,
Angelos

On 11/29/2014 03:32 PM, Tim Southern wrote:

Dear all,

A couple of weeks ago I made the mistake of upgrading Opensuse on
this 32 Toshiba Laptop to 13.2.  Grass failed to work with error
messages indicating NumPy had not been installed.  It had been
installed but did not contain the files Grass was looking for.
Attempts at removing and re-installing NumPy all produced the same
incomplete file set.  (i586 installation)

I have reverted to Opensuse 13.1 and now have another non working
version Grass 6.4

Traceback (most recent call
GRASS 6.4.3 (South_Oxfordshire):~ > Traceback (most recent call last):
File "/opt/grass/etc/wxpython/wxgui.py", line 139, in <module>
sys.exit(main())
File "/opt/grass/etc/wxpython/wxgui.py", line 132, in main
app = GMApp(workspaceFile)
File "/opt/grass/etc/wxpython/wxgui.py", line 45, in __init__
wx.App.__init__(self, False)
File
"/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
line 7981, in __init__
self._BootstrapApp()
File
"/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
line 7555, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/opt/grass/etc/wxpython/wxgui.py", line 78, in OnInit
workspace = self.workspaceFile)
File "/opt/grass/etc/wxpython/lmgr/frame.py", line 111, in __init__
self.toolbars = { 'workspace' : LMWorkspaceToolbar(parent = self),
File "/opt/grass/etc/wxpython/lmgr/toolbars.py", line 40, in __init__
self.InitToolbar(self._toolbarData())
File "/opt/grass/etc/wxpython/gui_core/toolbars.py", line 96, in
InitToolbar
self.CreateTool(*tool)
File "/opt/grass/etc/wxpython/gui_core/toolbars.py", line 120, in
CreateTool
shortHelp, longHelp)
File
"/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_controls.py",
line 3764, in AddLabelTool
shortHelp, longHelp, clientData)
File
"/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_controls.py",
line 3686, in DoAddTool
return _controls_.ToolBarBase_DoAddTool(*args, **kwargs)
ValueError: invalid null reference in method 'ToolBarBase_DoAddTool',
expected argument 4 of type 'wxBitmap const &'

I am assuming both the errors in 13.2 and now in 13.1 are due to
installation issues.  Grass 6.4 worked well in 13.1 until I
upgraded.  Can anyone help?

Thanks

Tim
Tim Southern
17, Park Close,
Sonning Common,
Oxfordshire
RG4 9RY

On 25 Nov 2014, at 20:00, grass-user-requ...@lists.osgeo.org wrote:

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

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

You can reach the person managing the list at
    grass-user-ow...@lists.osgeo.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of grass-user digest..."


Today's Topics:

   1. Re: Computing major and minor axes for polygons (Benjamin Ducke)
   2. Re: Computing major and minor axes for polygons (S?ren Gebbert)
   3. Re: Computing major and minor axes for polygons (Nikos
Alexandris)


----------------------------------------------------------------------

Message: 1
Date: Mon, 24 Nov 2014 22:50:46 +0100
From: Benjamin Ducke <bendu...@fastmail.fm>
To: grass-user <grass-user@lists.osgeo.org>
Subject: Re: [GRASS-user] Computing major and minor axes for polygons
Message-ID: <5473a836.5030...@fastmail.fm>
Content-Type: text/plain; charset=utf-8

Right, a PCA of the polygon vertices, I assume?
Maybe "v.to.db" could be enhanced to allow it to upload
the lengths of the first two/three components to the
attribute table?

For a quick fix, I solved the problem in a shell script using
a crude approximation. FWIW:
0. Set major axis length=-1
1. Rotate polygon by 10? (v.transform)
2. Fit region to polygon (g.region vect=).
3. Get width of region. If it is greater than major axis length,
   set "major axis length = width"
4. Repeat from 1, until polygon has been rotated 350?
5. Minor axis length = height of current region.

Like I said, it's just a crude approximation (precision can
be increased by using smaller rotation steps) and slow, too.
But it's good enough for my purposes, which is basically to
calculate "elongation=len(major)/len(min)".

Best,

Ben

On 24/11/14 19:27, S?ren Gebbert wrote:

IIRC is the code to compute the major and minor axes already in GRASS.
You need to perform a Karhunen-Loewe-Transformation for each Polygon.
This is also known as principal components analysis.

Best regards
Soeren

Am 21.11.2014 23:33 schrieb "Benjamin Ducke" <bendu...@fastmail.fm
<mailto:bendu...@fastmail.fm>>:

    Hi All --

    Does anybody here know of an existing GRASS modules that
    will compute the major and minor axes for the polygons of
    a vector map?

    Thanks and best,

    Ben
    _______________________________________________
    grass-user mailing list
    grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org>
    http://lists.osgeo.org/mailman/listinfo/grass-user


--
Dr. Benjamin Ducke
{*} Geospatial Consultant
{*} GIS Developer

Spatial technology for the masses, not the classes:
experience free and open source GIS at http://gvsigce.org


------------------------------

Message: 2
Date: Mon, 24 Nov 2014 23:44:29 +0100
From: S?ren Gebbert <soerengebb...@googlemail.com>
To: Benjamin Ducke <bendu...@fastmail.fm>
Cc: grass-user <grass-user@lists.osgeo.org>
Subject: Re: [GRASS-user] Computing major and minor axes for polygons
Message-ID:
    <caphdrejy+alkpezthfcd+8m935qgild1f-ynhrjemz-s8ru...@mail.gmail.com>

Content-Type: text/plain; charset=UTF-8

Hi Ben,

2014-11-24 22:50 GMT+01:00 Benjamin Ducke <bendu...@fastmail.fm>:

Right, a PCA of the polygon vertices, I assume?

Exactly, create a covariance matrix from the vertices coordinates of
each polygon
and compute the eigenvectors and eigenvalues of these matrices.

Best regards
Soeren

Maybe "v.to.db" could be enhanced to allow it to upload
the lengths of the first two/three components to the
attribute table?

For a quick fix, I solved the problem in a shell script using
a crude approximation. FWIW:
0. Set major axis length=-1
1. Rotate polygon by 10? (v.transform)
2. Fit region to polygon (g.region vect=).
3. Get width of region. If it is greater than major axis length,
   set "major axis length = width"
4. Repeat from 1, until polygon has been rotated 350?
5. Minor axis length = height of current region.

Like I said, it's just a crude approximation (precision can
be increased by using smaller rotation steps) and slow, too.
But it's good enough for my purposes, which is basically to
calculate "elongation=len(major)/len(min)".

Best,

Ben

On 24/11/14 19:27, S?ren Gebbert wrote:

IIRC is the code to compute the major and minor axes already in
GRASS.
You need to perform a Karhunen-Loewe-Transformation for each Polygon.
This is also known as principal components analysis.

Best regards
Soeren

Am 21.11.2014 23:33 schrieb "Benjamin Ducke" <bendu...@fastmail.fm
<mailto:bendu...@fastmail.fm>>:

    Hi All --

    Does anybody here know of an existing GRASS modules that
    will compute the major and minor axes for the polygons of
    a vector map?

    Thanks and best,

    Ben
    _______________________________________________
    grass-user mailing list
    grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org>
    http://lists.osgeo.org/mailman/listinfo/grass-user


--
Dr. Benjamin Ducke
{*} Geospatial Consultant
{*} GIS Developer

Spatial technology for the masses, not the classes:
experience free and open source GIS at http://gvsigce.org
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

------------------------------

Message: 3
Date: Tue, 25 Nov 2014 19:10:38 +0200
From: Nikos Alexandris <n...@nikosalexandris.net>
To: <grass-user@lists.osgeo.org>
Subject: Re: [GRASS-user] Computing major and minor axes for polygons
Message-ID: <5db8e3e250d0adde57c6a9628ba56...@nikosalexandris.net>
Content-Type: text/plain; charset=UTF-8; format=flowed

On 24.11.2014 23:50, Benjamin Ducke wrote:

Right, a PCA of the polygon vertices, I assume?
Maybe "v.to.db" could be enhanced to allow it to upload
the lengths of the first two/three components to the
attribute table?

For a quick fix, I solved the problem in a shell script using
a crude approximation. FWIW:
0. Set major axis length=-1
1. Rotate polygon by 10? (v.transform)
2. Fit region to polygon (g.region vect=).
3. Get width of region. If it is greater than major axis length,
   set "major axis length = width"
4. Repeat from 1, until polygon has been rotated 350?
5. Minor axis length = height of current region.

Wow, What a smart approach! :-)

Nikos


------------------------------

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

End of grass-user Digest, Vol 103, Issue 42
*******************************************



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


--
Angelos Tzotsos
Remote Sensing Laboratory
National Technical University of Athens
http://users.ntua.gr/tzotsos



------------------------------

Message: 2
Date: Sun, 30 Nov 2014 03:46:54 +0000
From: shashank khare <skh...@hotmail.com>
To: "grass-user@lists.osgeo.org" <grass-user@lists.osgeo.org>
Subject: [GRASS-user] mapping interface
Message-ID: <blu175-w24e2d4661f9fd9e586bf7cc9...@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"

I want to develop a mapping application using python for avalanche flow 
simulation which takes a lot of user inputs. I do not want to go through wxGUI 
as the user is not interested in options shown by its GUI. Is there any 
documentation about 2d/3d mapping interface classes/modules which I can use. If 
these are not documented I can help in it.
ThanksShash                                     
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://lists.osgeo.org/pipermail/grass-user/attachments/20141130/ce5cae59/attachment-0001.html>

------------------------------

Message: 3
Date: Sun, 30 Nov 2014 04:13:43 +0000
From: C?sar Augusto Ram?rez Franco <caesar...@gmail.com>
To: GRASS User List <grass-user@lists.osgeo.org>
Subject: Re: [GRASS-user] how to change all cats in a vector line
Message-ID:
        <CAJDYeikYbxrb3-w3ZSiiN3ufZoLzQRnQow+RjgD5=rzds67...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello Michael

You could use r.stream.order after r.stream.extract to get your stream
network ordered, and then, after running r.thin on the ordered stream
network, convert it to vector using r.to.vect with the -v flag, that way,
each order is a cat, you can them use v.to.points or the add-on suggested
below to get topologically-correct points along the stream network, you
could also use r.stream.distance and upload distance and elevation to each
point using v.what.rast

I usually run R from within GRASS and use the spgrass6 library to read the
vector map and analyze the data there

Regards

C?sar.

El s?b, 29 de noviembre de 2014 06:29 p.m., Helmut Kudrnovsky <hel...@web.de>
escribi?:

Michael Barton wrote

Hi Markus,

What I'm trying to do is start with a raster stream map from r.drain and
convert it to a sequence of vector points, where each point has
information as to its position along the stream. I then use the points

for

sampling a stream profile and related information. Oddly enough, with all
of the very useful stream analysis modules, there is nothing I could find
to generate the data for a stream profile (distance from outlet or from
headwaters vs. elevation).

v.to.points does a nice job of creating a sequence of evenly spaced

points

with information about their location along a line (the "along" field).
BUT, if the line is composed of multiple segments or even if it has an
irregularity in it, the "along" values start over again from 0. The only
way I can use it is if I have a very clean and continuous vector line

with

only a single cat.

This has proven surprisingly difficult to obtain reliably from my raster
stream map. So far, the only way has been to do a two sequences of

v.clean

(with thresholds 1.5 X the raster resolution) and v.build.polylines. If
you have any better suggestion, I'd love to hear it.

Thanks again for the polylines idea. That was a big help.

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice:  480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu

On Nov 29, 2014, at 10:20 AM, Michael Barton &lt;

Michael.Barton@
&gt; wrote:

Thanks. This helped.

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice:  480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu

On Nov 29, 2014, at 1:23 AM, Markus Neteler &lt;

neteler@
&gt; wrote:

On Sat, Nov 29, 2014 at 6:16 AM, Michael Barton &lt;

Michael.Barton@
&gt; wrote:

I have a vector line that is divided into 12 cat values. I?d like all
of the
line to have a single cat value. I?ve tried v.category to no avail. If
I
delete all categories and then add new categories, I get 12 cats

again.

And
I can find no other way to get a single cat for the entire line.
Hopefully
someone can tell what I?m missing here.

Please try to use
http://grass.osgeo.org/grass70/manuals/v.build.polylines.html

Markus

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

http://grass.osgeo.org/grass71/manuals/r.stream.extract.html ?



-----
best regards
Helmut
--
View this message in context: http://osgeo-org.1560.x6.
nabble.com/how-to-change-all-cats-in-a-vector-line-tp5175575p5175634.html
Sent from the Grass - Users mailing list archive at Nabble.com.
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://lists.osgeo.org/pipermail/grass-user/attachments/20141130/fc9f610c/attachment-0001.html>

------------------------------

Message: 4
Date: Sun, 30 Nov 2014 04:51:04 +0000
From: Michael Barton <michael.bar...@asu.edu>
To: grass-user grass-user <grass-user@lists.osgeo.org>
Subject: Re: [GRASS-user] grass-user Digest, Vol 103, Issue 47
Message-ID: <d877804b-caf8-4178-9156-6d2f160ca...@asu.edu>
Content-Type: text/plain; charset="utf-8"

r.stream.extract can make the raster streams?ones that are pretty much 
equivalent to those made with r.watershed. But it can?t do stream profiles 
AFAICT. Also, like r.watershed, it extracts a stream network, not a particular 
stream. That is why we?re using r.drain to extract a particular drainage.

MICHAEL
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice:  480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu

On Nov 29, 2014, at 4:40 PM, 
grass-user-requ...@lists.osgeo.org<mailto:grass-user-requ...@lists.osgeo.org> 
wrote:

Re: [GRASS-user] how to change all cats in a vector line

Michael Barton wrote
Hi Markus,

What I'm trying to do is start with a raster stream map from r.drain and
convert it to a sequence of vector points, where each point has
information as to its position along the stream. I then use the points for
sampling a stream profile and related information. Oddly enough, with all
of the very useful stream analysis modules, there is nothing I could find
to generate the data for a stream profile (distance from outlet or from
headwaters vs. elevation).

v.to.points does a nice job of creating a sequence of evenly spaced points
with information about their location along a line (the "along" field).
BUT, if the line is composed of multiple segments or even if it has an
irregularity in it, the "along" values start over again from 0. The only
way I can use it is if I have a very clean and continuous vector line with
only a single cat.

This has proven surprisingly difficult to obtain reliably from my raster
stream map. So far, the only way has been to do a two sequences of v.clean
(with thresholds 1.5 X the raster resolution) and v.build.polylines. If
you have any better suggestion, I'd love to hear it.

Thanks again for the polylines idea. That was a big help.

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice:  480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, 
http://csdc.asu.edu<http://csdc.asu.edu/>

On Nov 29, 2014, at 10:20 AM, Michael Barton &lt;

Michael.Barton@

&gt; wrote:

Thanks. This helped.

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice:  480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, 
http://csdc.asu.edu<http://csdc.asu.edu/>

On Nov 29, 2014, at 1:23 AM, Markus Neteler &lt;

neteler@

&gt; wrote:

On Sat, Nov 29, 2014 at 6:16 AM, Michael Barton &lt;

Michael.Barton@

&gt; wrote:
I have a vector line that is divided into 12 cat values. I?d like all
of the
line to have a single cat value. I?ve tried v.category to no avail. If
I
delete all categories and then add new categories, I get 12 cats again.
And
I can find no other way to get a single cat for the entire line.
Hopefully
someone can tell what I?m missing here.

Please try to use
http://grass.osgeo.org/grass70/manuals/v.build.polylines.html

Markus

_______________________________________________
grass-user mailing list

grass-user@.osgeo

http://lists.osgeo.org/mailman/listinfo/grass-user

http://grass.osgeo.org/grass71/manuals/r.stream.extract.html ?

-----
best regards
Helmut

-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://lists.osgeo.org/pipermail/grass-user/attachments/20141130/1cda7384/attachment.html>

------------------------------

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

End of grass-user Digest, Vol 103, Issue 48
*******************************************

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



--
Angelos Tzotsos
Remote Sensing Laboratory
National Technical University of Athens
http://users.ntua.gr/tzotsos

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

Re: [GRASS-user] Opensuse 13.1 Grass

Reply via email to