[GRASS-dev] Re: subgroups in grass7

GRASS GRASS developer
1

On Jan 31, 2009, at 8:27 AM, <grass-dev-request@lists.osgeo.org> wrote:

Date: Sat, 31 Jan 2009 16:27:35 +0100
From: Martin Landa <landa.martin@gmail.com>
Subject: [GRASS-dev] Re: subgroups in grass7
To: GRASS developers list <grass-dev@lists.osgeo.org>
Message-ID:
  <f8fe65c40901310727i214352denae29f72637b373cc@mail.gmail.com>
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Hi,

2009/1/10 Martin Landa <landa.martin@gmail.com>:

while reading

#134 (Add a flag for subgroup listing in i.group) – GRASS GIS

Do we really need subgroups in G7? It would simplify usage of many
modules. E.g. I don't understand why I need to define subgroup for
i.maxlik.

Thanks for clarification.

so should I understand that subgroups are not really used in GRASS?

Another question - I would suggest to generalize i.group to g.group -
module which can group raster or vector layers into groups. This would
require to move group-related subroutines from imagery to gis library.
Then some v.* modules could accept vector layers group - e.g.
v.transform.

I second this latter idea. I also just had a report that the 'v.group' hack that is needed by the georectifier module is now broken in 6.5 (and 6.4?) for wxPython. It is still working OK in TclTk.

Michael

2

Hi,

2009/1/31 Michael Barton <michael.barton@asu.edu>:

I second this latter idea. I also just had a report that the 'v.group' hack
that is needed by the georectifier module is now broken in 6.5 (and 6.4?)
for wxPython. It is still working OK in TclTk.

I am going to fix georect in wxGUI in 6.4. g.group could simplify some
other operations in GRASS.

Martin

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

3

On Sat, Jan 31, 2009 at 4:47 PM, Martin Landa <landa.martin@gmail.com> wrote:

2009/1/31 Michael Barton <michael.barton@asu.edu>:

I second this latter idea. I also just had a report that the 'v.group' hack
that is needed by the georectifier module is now broken in 6.5 (and 6.4?)
for wxPython. It is still working OK in TclTk.

I am going to fix georect in wxGUI in 6.4. g.group could simplify some
other operations in GRASS.

Sounds very good to me to have g.group. in 6.4/5 i.group could
then become a simple wrapper to g.group.

Markus