Inaccurate and asymmetric (North/South) transformation utm to lat lon

[camillechasset]

I think I found an error in the original python code. The issue is reported and analyzed here

Summary: because of a wrong parenthesis position here the transformation from UTM to lat/lon was not fully accurate. Error up to 8cm in Svalbard, 6.5cm in Norway, and 5mm at other places. Error can be reduced with a factor between 5 and 10 depending on the location.

[im7mortal]

Thank you @camillechasset !
Great explanation! I will change it immediately after the python version will be modified.
Feel free to remind me about it.

[im7mortal]

@camillechasset I see there still no any response on python version.

I still want that python and go version were exact match. I just want to notify you , that I follow this issue

[im7mortal]

I see there still no any response on python version.

It's possible to get version with this fix using this command

go get github.com/im7mortal/UTM@839439135257eeb116a1edb8af72911e5df6a998

[tvkn]

Hi @im7mortal,

The python code has now been updated (with 8394391), and the corresponding issue has been closed.

Is there anything else blocking from getting this into main? Can I help?

[im7mortal]

Thank you @tvkn !

I released v1.4.0.

If you could verify that the distortion disappeared, it would be great!

Otherwise feel free to close the issue.

[tvkn]

I reviewed your code change and it looks good (and in line with the Python fix).

I can't close the issue as I don't own it, but OK for me to close based on the above.

Thanks & happy new year!