I'm trying to find out why I get different area figure in QGIS than in AutoCAD when I'm using the same shapefile?
What I did is I drew a shape in AutoCAD, imported it in QGIS and used the field calculator there to add area in the attribute table.
The result is that the shape's area figure in QGIS is always a little bit less than it is in AutoCAD in the properties window.
It’s the same no matter what the coordinate system is (same or different).
Could someone help me and tell me why the area figure is different in QGIS and how can I fix it?