[QGIS-trac] Re: [Quantum GIS] #3118: GdalTools (warp): add support for ntv2 grid and +towgs84 transformations

[Quantum GIS]

#3118: GdalTools (warp): add support for ntv2 grid and +towgs84 transformations
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   Reporter:  lutra                             |              Owner:  brushtyler   
       Type:  enhancement                       |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.6.0
  Component:  Python plugins and bindings       |            Version:  Trunk        
   Keywords:                                    |   Platform_version:               
   Platform:  All                               |           Must_fix:  Yes          
Status_info:  0                                 |  
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Comment(by lutra):

 Hi Brett,

 beside the fact that this is not the right ticket where to continue this
 interesting discussion, I'm not following you.

 A few commits that have been done recently have been reversed.

 The "indirect" method (see #3099) still works.

 I don't understand where this WGS72 comes out. :)



 Replying to [comment:5 badams]:
 > I loaded r14495.
 >
 > I'm not convinced its splitting AGD84 fron AGD66. There is only a few
 meters difference which dosn't seem to be accounted for.
 >
 > To get AGD84, AGD66 and GDA94 to plot together I need to allow on the
 fly reprojection. This changes everything to WGS72 (is that a bit dodgy?
 I'd never even heard of that projection). From here, everything seems to
 get exported as WGS72 lat long as opposed to the projection assigned on
 import(not sure about this, the prj files don't make alot of sense but
 they don't look right)
 >
 > When I go to Vector >> Data management tools >> Define current
 projection
 > no projection is shown. Does this imply the projection isn't sticking?
 It never has in the past.
 >
 > If I try and open the attribute table to see whats going on QGIS
 crashes.
 >
 > Sorry, not many positives in that.
 >

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/3118#comment:10>
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