(x,y) in degrees to polar coordinates. This is a necessary step to compute average fiber paths as a function of their angle of incidence in the optic nerve head with the Jansonius map
cart2jpolar( xy )
Visual field location in Cartesian coordinates
Input xy needs to be a data frame. It returns a data frame with the radial and angular coordinates
Data frame with the radial and angular coordinates
r psi 1 15.0000 180.0000 2 10.3929 118.7571
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