Simulations of two-dimensional GISAXS intensity maps obtained with model 2 and azimuthal averaging for the set of disorder parameters P8. (a) The azimuthal directions of all vectors are included in the azimuthal averaging; (b) only the azimuthal directions of the vectors are averaged, the direction of is fixed. Perpendicular geometry is shown in (b). The intensity scale is the same as in Fig. 11.