While a neat analytical formula to describe lattice plane densities in arbitrary crystal structures may exist, our method is a brute force approach which relies on numerical geometrical computations. Additionally, this provides flexibility in treatment of the lattice sites (Section 2.3) which otherwise might require extensive tailoring or entirely new analytical formulas to describe. Indeed, a relevant analytical approach has been published ; however, the correctness of this method has been questioned without further rebuttal as of July 2021. Additionally, our database has the benefit of containing both summed and element-wise atomic planar densities (i.e. planar densities of each of the respective periodic elements).