[gdal-dev] Projection definition issue with Mapinfo files
even.rouault at mines-paris.org
Mon Aug 29 18:35:54 EDT 2011
Le lundi 29 août 2011 13:34:22, Yves Jacolin a écrit :
> One of QGIS user report an issue with mapInfo file (TAB file). If you
> understand french you can see the thread here:
This looks really similar to the issue raised in ticket
http://trac.osgeo.org/gdal/ticket/3292 that you reported almost 2 years ago
;-) but that did not see any progress unfortunately :-(
Although not a specialist of the mapinfo format, I think the fix for EPSG:2154
should be straightforward (adding an entry in a table) once we know the
mapinfo code that matches to the Reseau_Geodesique_Francais_1993 datum. One
way to get it would be to attach the COMMUNEL93.TAB (and the other related
files that make dataset) mentionned in
http://georezo.net/forum/viewtopic.php?pid=197022 to the ticket.
> I try to sum up the issue in english in this email. The process is basicly
> as follow:
> 1. check projection information with ogrinfo
> > DATUM["GRS_80",
> > SPHEROID["GRS 80",6378137,298.257222101],
> 2. update projection information file with ogr2ogr:
> > ogr2ogr -f "MapInfo file" -s_srs "EPSG:2154" -t_srs "EPSG:2154" new.tab
> 3. check projection information with ogrinfo
> > DATUM["WGS_1984",
> > SPHEROID["WGS 84",6378137,298.257223563],
> 1 and 3 show differents projection information! If I try to change file
> format to shp, it seems that projection information are correct.
> I can share tab files if needed.
> Any idea? Thanks.
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