[gdal-dev] [ogr2ogr] Anti-meridian issue when reprojecting from a Polar Stereographic projection to a geographic CRS

Andrey VI andrey_vi at list.ru
Tue Oct 14 05:50:11 PDT 2025


Hello.
 
I can't reproject data from a  Polar Stereographic projection (EPSG:3996) to a geographic projection (EPSG:4326) correctly using ogr2ogr. Command:
ogr2ogr -t_srs EPSG:4326 -wrapdateline polys_4326.shp polys.shp
ERROR 1: IllegalArgumentException: Points of LinearRing do not form a closed linestring
ERROR 1: IllegalArgumentException: Points of LinearRing do not form a closed linestring
ERROR 1: IllegalArgumentException: Points of LinearRing do not form a closed linestring
ERROR 1: IllegalArgumentException: Points of LinearRing do not form a closed linestring
ERROR 1: IllegalArgumentException: Points of LinearRing do not form a closed linestring
ERROR 1: IllegalArgumentException: Points of LinearRing do not form a closed linestring
  As a result some polygons are broken and also some polygons appears with artifacts.
The data used and the result (58 MB):  https://drive.google.com/file/d/176jtROjjeTlAQTITAJ75tBT1GwiUzSUm/view?usp=sharing .
 
How to reproject from a  projection naturally crossing the anti-meridian to a geographic CRS without any errors using ogr2ogr?
--
Andrey
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