Calculates projection factors for a point feature. This gives information about the distortion of the projection at that point.
The factors returned include:
- meridional_scale: Scale along meridian
- parallel_scale: Scale along parallel
- areal_scale: Area scale factor
- angular_distortion: Angular distortion
- meridian_convergence: Meridian convergence
- tissot_semimajor: Tissot ellipse semi-major axis
- tissot_semiminor: Tissot ellipse semi-minor axis
- dx_dlam: Partial derivative of x with respect to longitude
- dx_dphi: Partial derivative of x with respect to latitude
- dy_dlam: Partial derivative of y with respect to longitude
- dy_dphi: Partial derivative of y with respect to latitude
The feature must be a Point geometry.