Inverted polygon rendering clipped

[qgib]

Author Name: Nick Allen (@nickballen)
Original Redmine Issue: 18493
Affected QGIS version: 3.0.0
Redmine category:symbology

---

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 (Nick Allen)
• Inverted_Glitch.zip (Nick Allen)

[qgib]

Author Name: Nick Allen (@nickballen)

---

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

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

---

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

---

• status_id was changed from Open to Feedback

[qgib]

Author Name: Nick Allen (@nickballen)

---

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.

---

• 12522 was configured as Inverted_Glitch.zip

---

• Inverted_Glitch.zip (Nick Allen)

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

---

• status_id was changed from Feedback to Open

[qgib]

Author Name: Nick Allen (@nickballen)

---

Identical issue raised in this Stack Exchange thread.

[[https://gis.stackexchange.com/questions/254636/print-composer-rotation-and-inverted-polygons]]