[Qgis-user] Saving a polygon in QGis before to edit it

[Matthias Kuhn]

Yeah, I remember that as well.

But the boundless project page redirects here:
https://github.com/locationtech/geogig
and there is still some recent activity, so maybe it's not completely dead?

Matthias

On 07/20/2015 01:28 PM, Neumann, Andreas wrote:
>
> Hi,
>
> As far as I know, the geogit project was canceled by Boundless. They
> did not see enough customer demand to finish it.
>
> It is a pity, as the project was relatively close to completion.
>
> Andreas
>
> On 2015-07-20 13:05, Matthias Kuhn wrote:
>
>> Hi,
>>
>> I remember geogig (formerly geogit) offers promising concepts for
>> filebased spatial data management with historization and branching.
>> Unfortunately I don't know the current status of the project and the
>> progress of integration in QGIS.
>>
>> Matthias
>>
>> On 07/20/2015 11:25 AM, Neumann, Andreas wrote:
>>>
>>> Hi Didier,
>>>
>>> I don't think that anyone is working on a client-side historisation
>>> option in QGIS. And there wasn't much demand for that in the past,
>>> since most serious GIS data resides in databases.
>>>
>>> Andreas
>>>
>>> On 2015-07-20 09:45, didier peeters wrote:
>>>
>>>     Hello Andreas,
>>>      
>>>     yes it's for some 'historisation', more precisely to make a
>>>     filiation, and yes I certainly will use triggers in PostGIS.
>>>      But I wanted to avoid confusion between different kind of
>>>     edition operations that I'm not currently foreseeing; I'm not
>>>     sure it will always be easy to distinct this specific action
>>>     from others.  And I thought that it might also be interesting
>>>     outside of the database world, to have that "edit and preserve"
>>>     operation. 
>>>
>>>     Didier
>>>
>>>         Le 20 juil. 2015 à 09:10, Neumann, Andreas
>>>         <a.neumann at carto.net <mailto:a.neumann at carto.net>> a écrit :
>>>
>>>         Hi Didier,
>>>
>>>         Is this for historisation purposes? If yes, I would look
>>>         into database solutions to do historization.
>>>
>>>         The SQL-MM standard has this as a built-in tool set for
>>>         databases, however, PostgreSQL does not implement this part
>>>         of the SQL specification (I believe the latest versions of
>>>         SQL server and Oracle 12 does). However, you can simulate
>>>         the same in Postgis, using triggers and rules.
>>>
>>>         Andreas
>>>
>>>         On 2015-07-20 08:00, didier peeters wrote:
>>>
>>>             Hello,
>>>              
>>>             I would like to find the best solution to the following
>>>             case:
>>>              
>>>             in QGis, when editing a polygon (splitting it in 2
>>>             parts) I need to save the original shape, in order to
>>>             keep the different steps of its evolution; this
>>>             operation is likely to be repeated several times.  The
>>>             solution I found is to 
>>>
>>>               * start by copying the polygon, 
>>>               * then edit it (split) 
>>>               * then pasting back the original one, 
>>>               * then adjust and update the attributes of the 2 new
>>>                 polygons.  
>>>
>>>              
>>>             Is there a less tricky way to achieve this ?  
>>>              
>>>             If not it would be nice to have an option in the save
>>>             dialog (with a default behaviour set in the Settings),
>>>             and I would file a feature request.  
>>>              
>>>             Didier
>>>
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>>>          
>>>          
>>>
>>>
>>>
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