[Qgis-user] Symbol lines every km, moving when changing scale or moving map

[Prud'homme Jérémie]

Hi,

I had simplification turned on, indeed...

I deactivated it :
- in the Options as you mention, so that it is deactivated for newly added
layers
- in my layer options (Rendering properties)

And it is ok now.

It makes sense that if the line is simplified the distance vary !

Thanks Andreas.


Jérémie.

Le ven. 19 févr. 2021 à 11:12, Andreas Neumann <a.neumann at carto.net> a
écrit :

> Hi Jérémie,
>
> Do you have geometry simplification turned off? See "Settings" -->
> "Options" --> "Rendering" --> "Enable feature simplification ..."
>
> Make sure this is deactivated (I think it is enabled by default).
>
> Greetings,
>
> Andreas
>
>
> On 2021-02-19 11:05, Prud'homme Jérémie wrote:
>
> Tested too fast :(
>
> Behavior is ok when zooming in, but still problems when zooming out
> (whereas the entire feature is visible !).
> See here : https://www.zupimages.net/viewer.php?id=21/07/ehlo.gif
>
> Circles should follow the strokes generated with the tool "Points along
> geometry".
>
>
> Jérémie.
>
> Le ven. 19 févr. 2021 à 10:03, Prud'homme Jérémie <p.jeremie at gmail.com> a
> écrit :
>
> Hi,
>
> Thank you very much Nyall, this one was pretty well hidden.
>
> With clipping unchecked, behavior is as expected for my use case.
>
>
> Jérémie.
>
> Le jeu. 18 févr. 2021 à 23:29, Nyall Dawson <nyall.dawson at gmail.com> a
> écrit :
>
> On Wed, 13 Jan 2021 at 06:33, Prud'homme Jérémie <p.jeremie at gmail.com>
> wrote:
> >
> > Hi,
> >
> > I'm using QGIS 3.10.
> >
> > I tried to use only symbology to display a stroke every km along a road.
> > The project CRS is 2154 (Lambert 93).
> >
> > When adding a ""symbol line" with an interval of 1000 map units (meter
> for 2154) – or 1000 meters at scale, same result – I achieve to display
> symbols every km.
> >
> > Problem is when I move the map or change scale, the symbols do not
> always stay in place. They are sometimes misplaced.
> >
> > I've been told that problem can be that the first node of the line is
> not always the reference to calculate the intervals.
>
> From the bottom of the symbol widget, click the "Advanced" button and
> uncheck "Clip features to canvas extent".
>
> Nyall
>
>
>
> >
> > You can find a GIF here that displays my problem :
> https://zupimages.net/viewer.php?id=21/02/nvr2.gif
> >
> > Circles are symbols via Symbology.
> > Strokes are symbos on points generated vith the tool "Points along
> geometry".
> >
> > You can see that circles are not always at the same place as the strokes.
> >
> > Is it a "normal" behavior ?
> > Anyway as a user I would expect that symbols are always generated at the
> same place from the starting node.
> >
> > Thanks for your enlightments on this.
> >
> > Jérémie.
> > _______________________________________________
> > Qgis-user mailing list
> > Qgis-user at lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20210219/bde45b5f/attachment-0001.html>