[QGIS-Developer] Problem with Algorithm Shortest Path (Point To Layer)

Falk Huettmann fhuettmann at alaska.edu
Mon Mar 2 09:37:30 PST 2020


Hi there,
thanks.

I have seen such type of questions and problems like below a lot,
and specifically in GIS and computing; certainly in (complex) optimizations.
So as a cautionary note, it must be documented very well (Metadata),
and benchmark data should exist and with standard solutions
for a check and with reasoning provided.

Very best
   Falk Huettmann






On Mon, Mar 2, 2020 at 1:13 AM <Bauer.Josef at swm.de> wrote:

> Hello, Nyall,
>
> thank you very much for the quick reply! I thought that this problem would
> be very difficult to solve without test data.
>
> We will try to provide appropriate test data to reproduce the problem.
> However, this may take some time.
>
> Best regards
> Josef
>
>
> -----Urspr√ľngliche Nachricht-----
> Von: Nyall Dawson <nyall.dawson at gmail.com>
> Gesendet: Freitag, 28. Februar 2020 01:40
> An: Bauer.Josef extern IT-DS-TS <Bauer.Josef at swm.de>
> Cc: qgis-developer <qgis-developer at lists.osgeo.org>; Ullmann.Jana extern
> IT-DS-TS <Ullmann.Jana at swm.de>
> Betreff: Re: [QGIS-Developer] Problem with Algorithm Shortest Path (Point
> To Layer)
>
> On Thu, 27 Feb 2020 at 23:24, <Bauer.Josef at swm.de> wrote:
> >
> ?
> > Unfortunately, we cannot publish those layers without editing them.
> > We hope that someone is familiar with this challenge and able to help us
> :).
>
> It's certainly a challenge! To be honest, it's almost impossible to dig
> further into this without some example data and workflows which can be used
> to test with. There's already a decent unit test coverage of this
> functionality, and the automated tests have not detected any regressions.
> This leads me to believe it's a corner case you're hitting with your
> particular dataset and inputs...
>
> Nyall
>
> >
> >
> >
> > Best regards
> >
> > Josef
> >
> >
> >
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