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

[Rahkonen Jukka]

Hi,

This command prints also 6 error lines, but at least the result does not have empty areas:

ogr2ogr -t_srs epsg:4626 -wrapdateline -datelineoffset 180 foo3.shp polys.shp

I do not know if the result is correct or not, just that it is different.

-Jukka Rahkonen-


________________________________________
Lähettäjä: gdal-dev <gdal-dev-bounces at lists.osgeo.org> käyttäjän Andrey VI via gdal-dev <gdal-dev at lists.osgeo.org> puolesta
Lähetetty: Tiistai 14. lokakuuta 2025 15.50
Vastaanottaja: gdal-dev at lists.osgeo.org <gdal-dev at lists.osgeo.org>
Aihe: [gdal-dev] [ogr2ogr] Anti-meridian issue when reprojecting from a Polar Stereographic projection to a geographic CRS

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.shpERROR 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.[X]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