[GRASS-dev] [GRASS GIS] #997: g.proj returns wrong datumtrans

[GRASS GIS]

#997: g.proj returns wrong datumtrans
--------------------------------+-------------------------------------------
 Reporter:  martinl             |       Owner:  grass-dev at lists.osgeo.org
     Type:  defect              |      Status:  new                      
 Priority:  blocker             |   Milestone:  6.4.0                    
Component:  Projections/Datums  |     Version:  svn-releasebranch64      
 Keywords:  g.proj              |    Platform:  Unspecified              
      Cpu:  Unspecified         |  
--------------------------------+-------------------------------------------
 {{{g.proj}}} behaves strangely when printing datum transform paramaters.
 E.g.

 {{{
 g.proj epsg=3004 datumtrans=-1
 }}}

 nothing is printed out even epgs code is given.

 Setting datumtrans also doesn't work, e.g.

 {{{
 g.proj epsg=3004 datumtrans=1 -j
 ...
 +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
 ...
 }}}

 same with

 {{{
 g.proj epsg=3004 datumtrans=2 -j
 ...
 +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
 ...
 }}}

 Everything is working with {{{-t}}} flag, e.g.

 {{{
 g.proj epsg=3004 datumtrans=-1 -t
 ---
 1
 Used in whole rome40 region
 towgs84=-225.000,-65.000,9.000
 Default 3-Parameter Transformation (May not be optimum for older datums;
 use this only if no more appropriate options are available.)
 ---
 2
 Used in Italy (Peninsular Part)
 towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
 Accuracy 3-4m
 ---
 3
 Used in Italy (Sardinia)
 towgs84=-168.6,-34.0,38.6,-0.374,-0.679,-1.379,-9.48
 Accuracy 3-4m
 ---
 4
 Used in Italy (Sicily)
 towgs84=-50.2,-50.4,84.8,-0.690,-2.012,0.459,-28.08
 Accuracy 3-4m
 }}}

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/997>
GRASS GIS <http://grass.osgeo.org>