[gdal-dev] Possible bug in gdal.TransformPoint() gdal 3.0.1

[Deschamps, Benjamin (EC)]

Hi gdal-dev list,

Not sure if this is a bug so posting here first...

I am having to reverse X and Y coordinates in a coordinate transformations (in at least 3 different dst_crs) otherwise I am getting -inf values. Python bindings with GDAL 3.0.1, Python 3.7.2 64-bit on Windows 10.

For a point near the dateline in the Arctic at (175W, 80N):

from osgeo import osr
in_crs = osr.SpatialReference()
in_crs.ImportFromEPSG(4326)
out_crs = osr.SpatialReference()
out_crs.ImportFromEPSG(3347)
transformation = osr.CoordinateTransformation(in_crs, out_crs)
print(transformation.TransformPoint(-175, 80, 0)) # lon, lat
print(transformation.TransformPoint(80, -175, 0))  # lat, lon

Gives :

(inf, inf, inf)
(4983944.437216174, 5754720.297247784, 0.0) # correct

https://epsg.io/transform#s_srs=4326&t_srs=3347&x=-175.0000000&y=80.0000000

Regards,

Benjamin Deschamps
Environment and Climate Change Canada / Government of Canada
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