[QGIS-trac] Re: [Quantum GIS] #1219: OTFT on, layer's and project's CRS the same: measure tools and Identify Features return impossible measurments

[Quantum GIS]

#1219: OTFT on, layer's and project's CRS the same: measure tools and Identify
Features return impossible measurments
---------------------------------------+------------------------------------
        Reporter:  smizuno             |         Owner:  homann           
            Type:  enhancement         |        Status:  assigned         
        Priority:  minor: annoyance    |     Milestone:  Version 1.2.0    
       Component:  Projection Support  |       Version:  HEAD             
      Resolution:                      |      Keywords:  measure area line
Platform_version:                      |      Platform:  All              
        Must_fix:  Yes                 |   Status_info:  0                
---------------------------------------+------------------------------------
Changes (by lutra):

  * milestone:  Version 1.0.3 => Version 1.2.0

Comment:

 Replying to [comment:9 homann]:
 > I changed the way it works a bit. The layer units are grayed out when
 OTFP is on, and there is a separate selector for displaying as feet or
 meter (only converts from meters and feet).
 >
 > It's in r11340. I expect bug reports! :-)
 [[BR]]

 Hi,
 thanks for working on this matter, it is a much needed thing.

 These are my observation.

 *) load a layer with a projection in meters and enable OTFR. Scale bar is
 right, measure line tools is right for both meters and feet. Measure area
 tool is right for square meters but *wrong* for square feet (seems to not
 make the transformation from square meters).

 *) load a layer with a projection in feet and enable OTFR. Scale bar is
 right, measure line tools is *wrong* for both meters and feet. Measure
 area tools is *wrong* for both meters and feet.

 I would like to see the "display units" to change automatically (when OTFR
 is enabled), together with the scale bar units, accordingly to the
 projection selected in the project properties. Now it doesn't behave this
 way, and the measure tools are always in meters by default and the map
 scale is fixed to the project projection unit.


 I am seeing that you just committed a code for fixing area measures. I'll
 give a try and then report back.

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/1219#comment:10>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats