Bug report #21650
calculator not returning correct area
Status: | Rejected | ||
---|---|---|---|
Priority: | Normal | ||
Assignee: | - | ||
Category: | Field calculator | ||
Affected QGIS version: | 3.4.4 | Regression?: | No |
Operating System: | ubuntu | Easy fix?: | No |
Pull Request or Patch supplied: | No | Resolution: | invalid |
Crashes QGIS or corrupts data: | No | Copied to github as #: | 29466 |
Description
while using field calculator to calculate acres from ft (state plane 3435 (ft) > acres). I am not getting expected results. I've tried this on QGIS 3.4.4, and 2.18.28.
My formula is:
$area * 0.0000229568
I double checked in postgis. This is returning expected numbers:
st_area(geom) * 0.0000229568
History
#1 Updated by Nyall Dawson over 5 years ago
- Resolution set to invalid
- Status changed from Open to Rejected
They are two totally different calculations - the PostGIS one is the equivalent of QGIS'
area($geometry)*0.0000229568
The other is an ellipsoidal area, calculated using the settings from your project properties.
#2 Updated by garret w over 5 years ago
Ah, I see. Thanks!