[Qgis-user] Crashing with snapping and WFS !?

[Alessandro Pasotti]

Hi,

this really sounds like a bug, can you file a ticket if there isn't one
already?

On Fri, Oct 22, 2021 at 4:16 AM Michael Dufty <
MDufty at mbsenvironmental.com.au> wrote:

> I'm not sure if its related, but I often have issues with snapping and
> arcgis rest layers.  The problem is if snapping is enabled QGIS will index
> the entire layer.  If it happens to be a national dataset - the sort of
> thing web layers are great for, this can take an hour or so, with QGIS
> unresponsive for the whole time often it won't actually crash if you are
> patient enough, but better to force quit if you have saved.  Often I don't
> even want to snap to that layer, just accidentally had snap to all layers
> enabled, and once you realise it is happening it is too late to save the
> setting.  Even worse the settings only seem to be available when snap is
> enabled, so to fix it, you need to hide the layer, turn snap on, change the
> settings, then turn the layers back on.
>
> Michael Dufty
> -----Original Message-----
> From: Qgis-user <qgis-user-bounces at lists.osgeo.org> On Behalf Of Lars I.
> Nielsen
> Sent: Wednesday, 20 October 2021 7:29 PM
> To: Julien Cabieces <julien.cabieces at oslandia.com>
> Cc: qgis-user at lists.osgeo.org
> Subject: Re: [Qgis-user] Crashing with snapping and WFS !?
>
> Thanks Julien.
>
> It's on Windows. It's at a customer, so I'm not entirely sure what
> version, except that it's Windows 10.
>
> I did a bug report on it: # 45589.
>
> Cheers
> Lars
>
> -----Oprindelig meddelelse-----
> Fra: Julien Cabieces [mailto:julien.cabieces at oslandia.com]
> Sendt: 18. oktober 2021 09:15
> Til: Lars I. Nielsen
> Cc: qgis-user at lists.osgeo.org
> Emne: Re: [Qgis-user] Crashing with snapping and WFS !?
>
>
> Hi,
>
>
> Could you please open an issue here https://github.com/qgis/QGIS/issues
> ?
>
> Does it happen on Linux or Windows ?
>
> Do you manage to reproduce the issue every time or it happen randomly?
>
> Kind regards,
> Julien
>
> > Hi list.
> >
> >
> >
> > We’re running a dataset via WFS (Geoserver 2.16) into QGIS.
> >
> > The user has snap turned on while digitizing/editing, and too often this
> combo results in QGIS crashing.
> >
> >
> >
> > However, this crash does not happen when digitizing/editing, but during
> other operations like panning the map or something similar.
> >
> >
> >
> > The stack dump mentions “snapPoint”, “snapToMap”, “nearestVertex”, and
> “closestVertex”, which to me implies the snapping function in action.
> >
> > It also mentions “canvasMoveEvent”, which to me implies a panning
> operation.
> >
> >
> >
> > I expect the snapping operation to be entirely local, i.e. independent
> of actual data source type, but this apparently only happens when using a
> WFS data source.
> >
> >
> >
> > Can anyone shed some light on this unexpected behavior ? Is it a bug ?
> >
> >
> >
> > Here’s the crash dialog box:
> >
> > *
> >
> >
> >
> > QGIS is version 3.16.10, as the stack dump shows.
> >
> >
> >
> >
> >
> > Med venlig hilsen
> >
> > Lars I. Nielsen
> > GIS-kons., FME+Python Certified Professional
> > GeoData
> >
> >
> >
> > *
> >  Dir. +4563136849
> >  Tlf.  +4563136800
> >  Mail  +lin at lifa.dk
> > *
> >
> >
> >
> > LIFA A/S · Tlf +4563136800 · lifa.dk · CVRI20937289
> >
> > Odense · København · Fredericia · Vejle · Kolding · Aarhus · Middelfart
> · Vissenbjerg · Kerteminde
> >
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>
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-- 
Alessandro Pasotti
QCooperative:  www.qcooperative.net
ItOpen:   www.itopen.it
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