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Author Topic: Transformation between coordinate systems  (Read 342 times)

AndrejH

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Transformation between coordinate systems
« on: May 13, 2021, 03:42:56 PM »
Good afternoon!

Mr. Pasumansky I'm kindly asking you to let me know what method is used for transformation between coordinate systems in Metashape? My colleagues and I think that it might not be only a 7 parameter transformation, but some kind of polynomial. Could you please confirm or deny this? Could you please tell me more about the method you use?

Kind regards,
AndrejH

Alexey Pasumansky

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Re: Transformation between coordinate systems
« Reply #1 on: May 13, 2021, 06:05:01 PM »
Hello AndrejH,

Metashape is using 7-parameter Helmert transformation in geocentric domain.

Please refer to pages 108-109 of the following document:
https://www.iogp.org/wp-content/uploads/2019/09/373-07-02.pdf
Best regards,
Alexey Pasumansky,
Agisoft LLC