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

Nyall Dawson nyall.dawson at gmail.com
Thu Jun 29 01:32:54 PDT 2017

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?


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