Comparison of the density maps between the different LMC clean samples. Top: LMC complete sample. Bottom: LMC optimal sample. From left to right, APOGEE, BOSS, Gaia, and Combined sample. We display bins containing three or more stars; otherwise, we display individual stars as a scatter plot. The brighter colours correspond to the higher density zones. A red line splitting the overdensities (LMC bar and spiral arm) from the underdensities is plotted. All maps are shown in the LMC in-plane (x^′, y^′) Cartesian coordinate system. To mimic how the LMC is seen in the sky, the plotted data has both axes inverted.