Density (left column) and temperature (right column) maps of the MCMax disk models for four different dust populations. The solid and dotted lines show the vertical and radial optically thin transitions at 2.2 pm, respectively. The green, white, and pink bars show the inner rim radii and widths extracted from the surface density, near-infrared flux, and optical depth at mid-plane, respectively. The cyan diamond and bar correspond to the GRAVITY measurement presented in this paper. The vertical position of the bars is arbitrary.