Bug report #18493

Inverted polygon rendering clipped

Added by Nick Allen over 2 years ago. Updated almost 2 years ago.

Status:Open
Priority:Normal
Assignee:-
Category:Symbology
Affected QGIS version:3.0.0 Regression?:No
Operating System:Windows & Mac Easy fix?:Yes
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:26381

Description

When applying the inverted polygon sub-renderer, the inverted mask gets "clipped" diagonally. The clipped area varies at different zoom levels. This occurs in both the map canvas and print composer views. I have replicated this issue with single and multi-polygon geometries, and tested in both Mac and PC versions of QGIS 3.0

Inverted_polygon.PNG (1.71 MB) Nick Allen, 2018-03-20 06:49 PM

Inverted_Glitch.zip (10.5 KB) Nick Allen, 2018-03-26 05:10 PM

History

#1 Updated by Nick Allen over 2 years ago

The "clip" area appears to be anchored to the viewing window and not to the polygon file.

#2 Updated by Nyall Dawson over 2 years ago

  • Status changed from Open to Feedback

Can you share a small project and sample data which demonstrates this?

#3 Updated by Nick Allen over 2 years ago

A test project is attached. I've since discovered it is rotation-dependent: the clipping varies at oblique angles and does not occur when rotation is set to 0, 90, 180, or 270 degrees.

#4 Updated by Nyall Dawson over 2 years ago

  • Status changed from Feedback to Open

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