[Qgis-developer] Vertex editor and CAD digitizing mode

Denis Rouzaud denis.rouzaud at gmail.com
Thu Jan 14 02:00:37 PST 2016


Hi Marco,

Looking at the discussion [0], I don't see strong opinions against this, 
but indeed the node was not usable, many of its features where missing.
Here is the list of remaining things to do to bring it at a usable state 
at that time [1].

While discussing refactoring of the node tool for circular strings, 
which went without any QEP, I was asking to use the new snapping API and 
to integrate it in the advanced digitizing tools. I thought we agree at 
that time.

I find a real pity that such a big change was not integrated into 
existing effort. Now, it will make things even more complicated.

I admit that, one year earlier, the first discussion did not yield to a 
solid agreement [2]. Although, this is the kind of behavior that is not 
really easy to speak about until you really tested it. I have a solid 
belief that click-click is the right approach since:
- people using it find it better
- other QGIS tools behave the same
- it allows integration of CAD tools, cancelation of current editing 
action with right-click, and avoids digitizing errors.

We had the same type of discussion when we remove the fact that right 
click was adding a last node to the digitized line or polygon.
Some were strongly against any change, but from now it looks much more 
natural.

So, yes, effort will start again to make the node tool more integrated 
into existing framework and workflows.
Although, it will be brought to QGIS 3, so it might be easier for such a 
change.

Best regards,

Denis

[0] 
https://github.com/qgis/QGIS/commit/a2f0763bab551da366b315fe562a571ec4dd1edd
[1] http://hub.qgis.org/issues/13276
[2] 
https://lists.osgeo.org/pipermail/qgis-developer/2014-September/034725.html

On 01/14/2016 08:52 AM, Marco Hugentobler wrote:
> Hi
>
> >With some comunities, we will be contracting a developper in a very 
> short time to start this development again. It will be merged after 2.14.
> >It will bring some changes in the behavior (click-click), so at the 
> end it might be a better idea to wait for 3.0.
>
> It was not only reverted because of bugs, it was mainly because some 
> users strongly disliked the behaviour changes. If you make a new go, 
> it will be good to have a QEP about it.
>
> Regards,
> Marco
>
> On 13.01.2016 07:58, Denis Rouzaud wrote:
>> Hi Andreas,
>>
>> The goal was to integrate CAD tools at the same time as circular string.
>> It was merged unfinished shortly before feature freeze (2.12) and 
>> thus reverted.
>>
>> With some comunities, we will be contracting a developper in a very 
>> short time to start this development again. It will be merged after 2.14.
>> It will bring some changes in the behavior (click-click), so at the 
>> end it might be a better idea to wait for 3.0.
>>
>> Best wishes,
>> Denis
>>
>> On 01/12/2016 12:53 PM, Andreas Neumann wrote:
>>> Hi,
>>>
>>> wasn't there once a vertex editor available along with a CAD 
>>> digitizing mode - that was pulled out of version 2.12 because it 
>>> wasn't fully mature?
>>>
>>> Is this still not put back into master? I can't seem to find it.
>>>
>>> Thanks for your information,
>>> Andreas
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>>
>>
>>
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>
> -- 
> Dr. Marco Hugentobler
> Sourcepole -  Linux & Open Source Solutions
> Weberstrasse 5, CH-8004 Z├╝rich, Switzerland
> marco.hugentobler at sourcepole.ch  http://www.sourcepole.ch
> Technical Advisor QGIS Project Steering Committee
>
>
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