[Qgis-user] Elements appear and disappear while zomming and panning

[G. Allegri]

The GeoJSON I was given didn't have the polygons correctly closed. First
vertex wasn't repeated.
Sorry and forget it...

Giovanni

Il giorno ven 30 nov 2018 alle ore 12:59 G. Allegri <giohappy at gmail.com> ha
scritto:

> Thx Luigi, I already tried that, and other options combinations, but no
> one solved the issue.
>
> Il giorno ven 30 nov 2018 alle ore 12:29 Luigi Pirelli <luipir at gmail.com>
> ha scritto:
>
>> just an hint to check, in vector properties ->rendering try to unckeck
>> (if set) the vector simplification during render process. And if set, plays
>> with possible simplification parameters.
>> Luigi Pirelli
>>
>>
>> **************************************************************************************************
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>> * Stackexchange: http://gis.stackexchange.com/users/19667/luigi-pirelli
>> * GitHub: https://github.com/luipir
>> * Mastering QGIS 2nd Edition:
>> *
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>> * Hire me: http://goo.gl/BYRQKg
>>
>> **************************************************************************************************
>>
>>
>> On Fri, 30 Nov 2018 at 12:09, G. Allegri <giohappy at gmail.com> wrote:
>>
>>> I forgot to say it happens with QGIS 3.4 on Windows 10.
>>>
>>> Il giorno ven 30 nov 2018 alle ore 12:08 G. Allegri <giohappy at gmail.com>
>>> ha scritto:
>>>
>>>> I'm facing a strange behaviour with a very simple layer: 5 polygons, 4
>>>> corners each.
>>>>
>>>> The following video shows what happens while panning and zooming the
>>>> map. No reporjection applied and nothing changed on the rendering settings.
>>>>
>>>> https://youtu.be/UOfwRlfcDK4
>>>>
>>>> Can anybody spot what's wrong with this layer?
>>>> Giovanni
>>>>
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