Maps of temperature (first panel), line-of-sight velocity (second panel), and magnetic field strength (third panel) over the chosen region in the MHD cube at a geometric height z = 0 km. Positive velocities denote downflows. The continuum intensity image at 6170 Å is shown in the bottom panel. Here the points P1, P2, P3, and P4 are the four pixels used for a detailed comparison between the Stokes profiles computed in LTE and NLTE.