3D representation of different structures. Left: magnetic field components of ℬ₀ (grey dots) and ℬ₂ (black dots) in RTN coordinate system, along with their projections in the RT, RN. and TN planes. Right: magnetic field components across a tangential discontinuity preceding structure ℬ₂ in the MV system, along with their projections in the maximum-minimum, maximum-intermediate, and minimum-intermediate planes.