[QGIS-Developer] Processing 3.0: Possible change to the Convex Hull algorithm

[Anita Graser]

On Thu, Jun 29, 2017 at 10:32 AM, Nyall Dawson <nyall.dawson at gmail.com>
wrote:

> On 29 June 2017 at 18:21, G. Allegri <giohappy at gmail.com> wrote:
> >
> > 1. Allowing multiple field selection for grouping
> > 2. Keeping attributes of first feature when grouping
> >
> >
> > I will accept this criteria, obviously, if it's the preferred solution
> for
> > the mosts.
> > I just want to report that many users (partecipants to courses or
> customers)
> > say they find having the "first feature value" misleading.
> > I agree with them. I would set the field values only for the grouping
> > fields, having the same value within the group, and set null for the
> other
> > fields.
> >
> > The problem raises during a long workflow. At some point you obtain a
> > dataset with unconsisten field values, and it's not always obvious to
> know
> > when and.which field value was set miningless.
>
> That's fair enough reasoning. Paolo/Anita are you OK with that logic?


​Sounds OK to me if it is possible to select multiple grouping fields.

Best wishes,
Anita

​
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