[gdal-dev] VPF to GPKG translation with Latin-1 encoded strings

[Philippe Ghesquiere]

Dear all,

I need some help to deal with a VPF data set.

*Environment :*

   - Windows 10
   - Gdal V3.5.0

*Context :*

I have a VPF vector set I try to convert to Geopackage. Some strings are
Latin-1 encoded (ISO-8859-1).

The OGR_OGDI plugin supports this specific encoding, but the GPKG format
does not. Thus, Latin-1 encoded text strings are saved as "BLOB".

So far, I have tried 2 ways to convert my VPF data :

1) Direct conversion to GPKG :
ogr2ogr -f GPKG mig040.gpkg
gltp:/vrf/e:/KIT_GEOCAPI_v3.0/02_Donnees_Test-Mires/BAO_M011_Ed1/VPF/MIG040/EURNASIA/MIG_040
<http://gltp/vrf/e:/KIT_GEOCAPI_v3.0/02_Donnees_Test-Mires/BAO_M011_Ed1/VPF/MIG040/EURNASIA/MIG_040>
"transtxt at trans(*)_text"

Text is saved as "BLOB".

I have tried several options (-lco, -oo, -doo, with SHAPE_ENCODING
configuration variable, ...) with no success.

2) Two-step conversion

ogr2ogr mig040.shp
gltp:/vrf/e:/KIT_GEOCAPI_v3.0/02_Donnees_Test-Mires/BAO_M011_Ed1/VPF/MIG040/EURNASIA/MIG_040
<http://gltp/vrf/e:/KIT_GEOCAPI_v3.0/02_Donnees_Test-Mires/BAO_M011_Ed1/VPF/MIG040/EURNASIA/MIG_040>
"transtxt at trans(*)_text"

ogr2ogr -f GPKG mig040.gpkg mig040.shp

Text is saved as UTF-8

*My question :*

Is there a way to convert directly to GPKG with UTF-8 text conversion ?

N.B. : I can share the data set. How can I do it ?


Philippe
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