Example of the arrangement of filaments within 1 and 3 virial radii R₂₀₀ of the halo around a group with log M_halo = 14.2. The position of filament points in a cubic box of (8R₂₀₀)³ is shown by coloured points. The circles indicated 1 and 3R₂₀₀, respectively. The grey arrow shows the orientation of the major axis of the central galaxy. Within 1R₂₀₀, filaments 2, 3, and 5 are aligned with the central galaxy orientation.