[GRASS-user] modify feature's values interactively

[Moritz Lennert]

On 28/03/08 16:48, christian Brandt wrote:
> Dear Moritz,
> 
> after implementation of wxPython GUI I started with a new grass
> session with the command grass63 -wxpython. Then the following
> message came up:
> 
> grass63 -wxpython Cleaning up temporary files..... Starting GRASS ...
>  Traceback (most recent call last): File
> "/usr/local/grass-6.3.0RC5/etc/wxpython/gis_set.py", line 28, in from
> gui_modules import utils File
> "/usr/local/grass-6.3.0RC5/etc/wxpython/gui_modules/utils.py", line 1

There must be more to the traceback, and the interesting part is always 
at the end...


Also: it would be helpful if you could give the following info when 
reporting issues with wxgrass:

- OS
- python version
- wxpython version

Moritz

>  Date: Thu, 27 Mar 2008 10:18:22 +0100
>> From: mlennert at club.worldonline.be To: landa.martin at gmail.com CC:
>> chrisbrandt74 at hotmail.com; grass-user at lists.osgeo.org Subject: Re:
>> [GRASS-user] modify feature's values interactively
>> 
>> On 26/03/08 19:46, Martin Landa wrote:
>>> Hi
>>> 
>>> 2008/3/26, Moritz Lennert :
>>>>>> is it possible within GRASS to modify feature's values (of
>>>>>> the feature attribute table) interactively (e.g. like in
>>>>>> ArcGIS, where I can select an object within the view which
>>>>>> then can be modified/removed...)?
>>>>> you mean to modify attribute data of vector objects? If so,
>>>>> yes, you can use v.digit or digitizer in wxPython GUI
>>>>> (experimental).
>>> Moritz:
>>>> IMHO there should be a solution outside of the digitizer (i.e.
>>>> without risking any alteration of the actual map), something
>>>> along the lines of "d.what.vect -e".
>>>> 
>>>> Christian, if this is what you need, you will have to use it
>>>> with the "old-style" x-monitors from the command line, i.e.:
>>>> 
>>>> d.mon x0 d.vect YourMap d.what.vect -e YourMap
>>>> 
>>>> This is typically one element which would be GUI-only as I
>>>> don't think it would make much sense to program an interactive
>>>> command line version...
>>>> 
>>>> So maybe something to think about for wxgrass.
>>> hm, it wouldn't be so difficult to implement, sorry, back to the 
>>> reality;-) Basic implementation is here
>>> 
>>> http://trac.osgeo.org/grass/changeset/30745
>>> 
>>> see
>>> 
>>> http://grass.gdf-hannover.de/wiki/Image:Wxgui-vector-querying-gnulinux.png
>>> 
>> Cool !
>> 
>> However, I just can't get it to work:
>> 
>> I have
>> 
>> GRASS 6.3.svn (spearfish60):~> v.db.connect -p roads Vector map  is
>> connected by: layer  table  in database through driver with key
>> 
>> Querying in display mode works as expected:
>> 
>> East: 596271.961722 North: 4924483.851675
>> 
>> Map: roads Mapset: PERMANENT Type: Line Line: 51 Longueur:
>> 1416.211362 couche: 1 catégorie: 3
>> 
>> Driver: dbf Database:
>> /home/mlennert/GRASS/DATA/spearfish60/PERMANENT/dbf/ Table: roads 
>> Key column: cat cat : 3 label : secondary highway, hard surface
>> 
>> But when I try to query it in edit mode, I get:
>> 
>> "No database record available"
>> 
>> 
>> Also: probably the button's properties should be changed so that
>> you can click on it again directly to change from one mode to the
>> other. Currently you have to click on another button and then back
>> on the query button to change mode.
>> 
>> Moritz
> 
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