[QGIS-trac] [Quantum GIS] #3437: Add natgrid to IGNF's RGF93 projections

[Quantum GIS]

#3437: Add natgrid to IGNF's RGF93 projections
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   Reporter:  jrm                               |              Owner:  nobody       
       Type:  patch                             |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.7.0
  Component:  Projection Support                |            Version:  Trunk        
   Keywords:  IGNF                              |   Platform_version:               
   Platform:  All                               |           Must_fix:  No           
Status_info:  0                                 |  
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 Hi,

 This ticket follows #3394. The official IGNF register does not specify the
 use of the gsb natgrid in the proj's description of the RGF93's systems
 because the gris was intented to convert from NTF to RGF93.

 However this grid is also useful when reprojecting or using OTF's
 projection of RGF93 layers on a NTF basemap, reducing the diff to cm
 instead of ~50m.

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/3437>
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