Environment of two clusters: CL1052 (left panel), which is one of the most distant clusters from filaments, and CL3030 (right panel), which is a high surface brightness cluster with a typical (median) distance. Our clusters are marked by the black cross in the centre, the dark green circle represents their virial radii r₂₀₀, filaments are in coral, and intersections (not used in this work) are in rose. The closest filament point, used for measuring the distance, is surrounded by a green rhombus.