[GRASS-dev] [GRASS GIS] #3161: different results by v.in.ogr --ui and vector import wizzard (data shift)

[GRASS GIS]

#3161: different results by v.in.ogr --ui and vector import wizzard (data shift)
----------------------+---------------------------
  Reporter:  hellik   |      Owner:  grass-dev@…
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  7.2.0
 Component:  Vector   |    Version:  svn-trunk
Resolution:           |   Keywords:  vector import
       CPU:  x86-64   |   Platform:  MSWindows 7
----------------------+---------------------------

Comment (by mmetz):

 Replying to [comment:4 hellik]:
 > Replying to [comment:1 mmetz]:
 > > In the end, the user has to decide if reprojection is needed or if the
 source srs and the location srs are similar enough to allow for using
 v.in.ogr -o (override projection check). After investigating the input
 data with g.proj georef=<data to be imported> and ogrinfo/gdalinfo.
 >
 > as mentioned before, there is no ''override projection check'' needed by
 import via v.in.ogr --ui.
 >
 > if you want to try
 >
 > - data can be downloaded
 [https://www.tirol.gv.at/data/datenkatalog/umwelt/gewaessernetz/ river
 net];
 >
 > - then ogr2ogr -s_srs EPSG:31254 -t_srs EPSG:31287
 >
 > - create location by EPSG:31287 and datum_trans 2
 >
 > - then import ''GUI -> import common formats''

 I tested. The location has the same parameters like yours:

 {{{
 > g.proj -p
 -PROJ_INFO-------------------------------------------------
 name       : MGI / Austria Lambert
 datum      : hermannskogel
 ellps      : bessel
 proj       : lcc
 lat_1      : 49
 lat_2      : 46
 lat_0      : 47.5
 lon_0      : 13.33333333333333
 x_0        : 400000
 y_0        : 400000
 no_defs    : defined
 towgs84    : 577.326,90.129,463.919,5.1366,1.4742,5.2970,2.4232
 -PROJ_EPSG-------------------------------------------------
 epsg       : 31287
 -PROJ_UNITS------------------------------------------------
 unit       : meter
 units      : meters
 meters     : 1
 }}}

 Now test if the SRS of the shapefile is identical

 {{{
 > v.in.ogr in=Gesamtgewaessernetz_v11_Tirol_epsg31287
 layer=Gesamtgewaessernetz_v11_Tirol -j
 Projection of input dataset and current location appear to match
 }}}

 fine, now v.import
 {{{
 > v.import in=Gesamtgewaessernetz_v11_Tirol_epsg31287
 out=Gesamtgewaessernetz_v11_Tirol_epsg31287
 [...]
 Input <Gesamtgewaessernetz_v11_Tirol_epsg31287> successfully imported
 without reprojection
 }}}

 All fine, no reprojection. What is your output of `v.in.ogr -j`?

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3161#comment:5>
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