[QGIS-Developer] QGIS 3 vertex editor problems

[Régis Haubourg]

Hi,
Agreed with Martin, the ergonomics changed because now we can't anymore
assume all the vertices are in the same feature.
Not being able to sub select a node without loosing previous selection is
indeed a pain. Martin is there any solution to keep a node selection, and
be able to subselect nodes from the map?

The use case I know is more typing z / m values easily than entering XY.
 X/Y typing is not so difficult using the advanced editor panel (just type
"x" then paste the X, "y" then paste) . It requires less mouse clicks for
sure than the node editor panel.
We maybe could add the z and m SpinBox with z and m shortcuts too there.

Régis





2017-10-05 11:01 GMT+02:00 Martin Dobias <wonder.sk at gmail.com>:

> Hi Andreas
>
> On Wed, Oct 4, 2017 at 10:00 AM, Andreas Neumann <a.neumann at carto.net>
> wrote:
> > Hi,
> >
> > In QGIS 3 the node editing on canvas was quite improved (thanks Martin
> and
> > the sponsors!), however, the vertex editor that allowed to edit
> individual
> > nodes in a list of exact coordinates suffered a lot.
> >
> > See https://issues.qgis.org/issues/17243
> >
> > Could a developer, during feature freeze, give the vertex editor some
> > attention and fix the open issues?
>
> Yeah I would happy to look into it. The issue is that as soon as node
> tool was freed from the requirement of dealing with just one feature
> at a time, there is not necessarily 1:1 relationship between what is
> active in node tool and the vertex editor. This made me think whether
> it would not be more useful to have a separation between node tool and
> the vertex editor table. E.g. the vertex editor could be a standalone
> dock widget with its own map tool to pick active feature. This could
> probably solve all the issues listed in the bug above. I am not sure
> what are the common use cases of the vertex editor - do people
> commonly use numeric input of vertex coordinates together with visual
> editing or are they barely used at the same time? Maybe Andreas if you
> could describe your use case for vertex editor, that would help me
> understand the workflow.
>
>
> > I know that one can also use the advanced digitizin panel to edit
> vertices -
> > but to be honest, this panel is so confusing to me - and probably to 90
> % of
> > the users out there as well - so I think the separate vertex editor panel
> > still makes sense.
>
> It is a bit difficult to grasp at first, but it is quite powerful -
> maybe some tutorial videos would help to get people on board...
>
>
> > For 3.2 I would even suggest to add new features to the vertex editor
> panel,
> > to allow adding new features or add/delete individual coordinates of
> > existing features, e.g. add new points at a given position, or delete
> one or
> > more nodes.
>
> I think this would go well together with my proposal above to make the
> vertex editor independent from the node tool.
>
>
> > And of course, expose and allow editing z and m values.
>
> Editing of Z/M values should be already supported - or am I wrong?
>
>
> > @Martin: would you have time fixing the vertex editor during the bug
> fixing
> > period, or should I ask another dev?
>
> Yeah I can handle that - of course first we need an agreement how the
> vertex editor should behave...
>
> Cheers
> Martin
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