Hi there
I’ve encountered this really strange bug when doing a buffer with mitre_join.
I have this polygon (from a real work usage). It comes from a negative -3m buffer, and I’m applying a +3m buffer with 8 quarter segments, mitre joins, and 5 as the mitre limit.
Instead of closing back the holes, it completely erases them
When doing instead a +4m buffer, everything is ok
This happens only on this precise configuration. I’ve tried doing -4m then +4m, and it was ok. Even -3.1 then +3.1 is ok. Here are my Qgis parameters (in French, sorry):
And the polygon (gpkg):
polygon.zip
I’ve tried on PostgreSQL 13 with PostGIS (Ubuntu Server), Postgresql 16 with PostGIS (local Windows), Qgis 3.44.8 (osgeo installer).
Hi there
I’ve encountered this really strange bug when doing a buffer with mitre_join.
I have this polygon (from a real work usage). It comes from a negative -3m buffer, and I’m applying a +3m buffer with 8 quarter segments, mitre joins, and 5 as the mitre limit.
Instead of closing back the holes, it completely erases them
When doing instead a +4m buffer, everything is ok
This happens only on this precise configuration. I’ve tried doing -4m then +4m, and it was ok. Even -3.1 then +3.1 is ok. Here are my Qgis parameters (in French, sorry):
And the polygon (gpkg):
polygon.zip
I’ve tried on PostgreSQL 13 with PostGIS (Ubuntu Server), Postgresql 16 with PostGIS (local Windows), Qgis 3.44.8 (osgeo installer).