[Qgis-user] Mis-projection in version 3.28 Firenze only

2024-09-23 Thread Jochen Albrecht via QGIS-User
Hi I am teaching with the latest version of OSgeo-Live, which runs QGIS 3.28. I am using for my class a small demo shapefile, which happens to be in EPSG:31287 (Austria, Styria). QGIS 3.28 places this file into the Mediterranean Sea, off the coast of France. Earlier versions of QGIS (in previous y

[Qgis-user] Different values for $area and 'Add Geometry Attributes'

2025-03-13 Thread Jochen Albrecht via QGIS-User
I am working with a projected vector layer (EPSG:31287) that, after dissolving polygons, has just two areas with no more than 20 vertices each. The total area should be exactly one million square meters. When I use the Add Geometry Attributes function, the sum of the calculated areas is less than a