[QGIS-trac] Re: [Quantum GIS] #3132: Field calculator cannot calculates area of polygon

Quantum GIS qgis at qgis.org
Mon Apr 11 15:42:11 EDT 2011


#3132: Field calculator cannot calculates area of polygon
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        Reporter:  dr                                |         Owner:  jef          
            Type:  bug                               |        Status:  reopened     
        Priority:  major: does not work as expected  |     Milestone:  Version 1.7.0
       Component:  Vectors                           |       Version:  Trunk        
      Resolution:                                    |      Keywords:               
Platform_version:                                    |      Platform:  All          
        Must_fix:  Yes                               |   Status_info:  0            
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Comment(by enrico80):

 Replying to [comment:11 borysiasty]:
 > I can confirm. Creating integer as well as floating point fails.
 For floating values the problem happen if you assign precision = 0,
 otherwise area is correct.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/3132#comment:13>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats


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