Disk model geometry for HD 142527 for the vertical plane along the minor axis with the location of the visible part of the reflecting disk surface (solid white line). The color scale illustrates the adapted disk volume density model of Marino et al. (2015). The disk midplane (dashed white line) is inclined by 20° toward the observer. The dotted lines indicate the location of the steep wall on the far side of the disk between 0.7′′ and 1.0′′ where the approximation of the disk wall by a plane-parallel surface is expected to be quite good.