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How does Correlator3D handle meridian convergence?#60

By Saad Farrell - Tue Dec 12, 2023 9:59 am

- Tue Dec 12, 2023 9:59 am #60

Hi again!

If your input is in a Roll/Pitch/Yaw (RPY) system and defined in a geographical system, how does C3D deal with the meridian Convergence?

Re: How does Correlator3D handle meridian convergence?#61

By David Alamillo - Tue Dec 12, 2023 1:56 pm

- Tue Dec 12, 2023 1:56 pm #61

Hello Saad,

Indeed, the Omega/Phi/Kappa (OPK) orientation system is defined in a projected system while the Roll/Pitch/Yaw (RPY) system is defined in a geographical system. In Correlator3D, processing occurs in a projected system. This means that if RPY is provided as input data, a conversion to OPK is first performed. This conversion does take into account the meridian convergence through a minimization based on geographical coordinates. Consequently, the conversion results may slightly differ from one project to another.