Bug report #8895

Field calculator "Area"

Added by Jonathan Moules about 7 years ago. Updated about 7 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:-
Affected QGIS version:2.0.1 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:invalid
Crashes QGIS or corrupts data:No Copied to github as #:17573

Description

I have a shapefile with two polygons - EPSG:27700 (British national grid).

- Enable editing
- Open field calculator
- "update existing field" (which is was set to a 10 width "real" at shapefile creation time)
- expression: $area

Result: One of them has a value of "0", the other one has a value of "243914090660769".

- save changes
- close table
- re open table

Result:
The one that was 0 is still 0. The other one has a new value: "-1397046367".

I guess maybe QGIS doesn't like the format I used for the number, but rather than provide erroneous results, QGIS should warn the user.

History

#1 Updated by Giovanni Manghi about 7 years ago

  • Resolution set to invalid
  • Status changed from Open to Closed

this issue was already fixed in master. It does happen when you have OTFR enabled, regardless if you are really reprojecting something.

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