Schematic view of the geometry: (a) non-magnetic WD with the boundary layer as the X-ray-emitting site, and (b) magnetic WD with the accretion column as the X-ray-emitting site. Half of the X-ray-emitting site is assumed visible from the observer. In panel (a), the WD accretion disk and the rotation axis is assumed to align with the Be star decretion disk with a viewing angle of i_d. (c) The geometry of the reflection modeling with a viewing angle of i_r. The WD surface with a radius R_WD subtends an angle dΩ/2π seen from a point-like X-ray source at a height of βR_WD from the surface, in which |$d\Omega /2\pi = 1- \sqrt{1-\left(\frac{1}{\beta +1}\right)^{2}}$|⁠.