[QGIS-trac] [Quantum GIS] #3296: Areas and length from field calculator are different to derived or measuared results, when on the fly projection is on

Quantum GIS qgis at qgis.org
Mon Dec 6 17:12:10 EST 2010


#3296: Areas and length from field calculator are different to derived or
measuared results, when on the fly projection is on
------------------------------------------------+---------------------------
   Reporter:  gespiel                           |              Owner:  jef          
       Type:  enhancement                       |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.7.0
  Component:  Vectors                           |            Version:  Trunk        
   Keywords:                                    |   Platform_version:  XP sp3       
   Platform:  Windows                           |           Must_fix:  No           
Status_info:  0                                 |  
------------------------------------------------+---------------------------
 Hi,

 in a project with EPSG 31466 (Gauss Krüger Zone 2), i get different
 results of area and length from fieldcalculator and derived (or measured).
 Project EPSG and shapefile EPSG are set to 31466.

 When on the fly is off, the results are indentic.

 A screenshot is attached

 Do I soething wrong?

 Gerhard

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/3296>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats


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