'Line pattern fill' and 'Marker line' zooming/panning issue - Githubissues

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'Line pattern fill' and 'Marker line' zooming/panning issue #22739

Closed qgib closed 5 years ago

qgib commented 8 years ago

Author Name: Reinhard Reiterer (Reinhard Reiterer) Original Redmine Issue: 14782 Affected QGIS version: 2.14.2 Redmine category:symbology

When zooming or panning the map canvas, the position of line pattern fills and marker lines changes dynamically. All units are in meters (map units).

14782.zip (Reinhard Reiterer)
14782.mp4 (Reinhard Reiterer)
14782_2.mp4 (Reinhard Reiterer)

qgib commented 8 years ago

Author Name: Reinhard Reiterer (Reinhard Reiterer)

9887 was configured as 14782.zip
9888 was configured as 14782.mp4

14782.zip (Reinhard Reiterer)
14782.mp4 (Reinhard Reiterer)

qgib commented 8 years ago

Author Name: Saber Razmjooei (@saberraz)

category_id was configured as Symbology

qgib commented 8 years ago

Author Name: Giovanni Manghi (@gioman)

is this really an issue (genuinely asking)?

priority_id was changed from High to Normal

qgib commented 8 years ago

Author Name: Reinhard Reiterer (Reinhard Reiterer)

This issue is quite important to me. As demonstrated in the screencast the marker line is visible at larger scales although it is located far away from the current map section.

qgib commented 8 years ago

Author Name: Giovanni Manghi (@gioman)

Reinhard Reiterer wrote:

This issue is quite important to me.

but generally speaking it is?

qgib commented 8 years ago

Author Name: Giovanni Manghi (@gioman)

status_id was changed from Open to Feedback

qgib commented 8 years ago

Author Name: Reinhard Reiterer (Reinhard Reiterer)

It's a bug that needs to be fixed!

qgib commented 8 years ago

Author Name: Giovanni Manghi (@gioman)

Reinhard Reiterer wrote:

It's a bug that needs to be fixed!

yes, but this does not explains what the actual bug is (at least to me), so I still do not understand if this is a corner case (even if very important to you) or a more general issue. Thanks!

qgib commented 8 years ago

Author Name: Reinhard Reiterer (Reinhard Reiterer)

Hi Giovanni, in the attached file the marker line interval is set to 40 map units (m). How can markers with a fixed interval change their position? Panning a map with several marker lines and pattern fills is a bit annoying because half of the map content changes the position the whole time.

9976 was configured as 14782_2.mp4

14782_2.mp4 (Reinhard Reiterer) - screencast

qgib commented 8 years ago

Author Name: Martin Dobias (@wonder-sk)

I think those two issues should get resolved by enabling one option: Open project properties dialog > "General" tab > "General settings" group > Avoid artifacts when project is rendered as map tiles.

Could you please try and report back if that helped?

qgib commented 8 years ago

Author Name: Reinhard Reiterer (Reinhard Reiterer)

Thanks, zooming/panning the map canvas works just fine now. I haven't noticed this checkbox before.

status_id was changed from Feedback to Closed

myxBeni commented 1 year ago

While this corrects the problem in the map canvas, it doesn't in the print layout. Left you see the print layout (atlas) and right a map canvas. Any help on that?