DM box of simulated Virgo cluster. The coloured lines represent the axis of projection. The red solid line axis is for the projection from the centre of the box to Virgo (Cen), the blue dotted line shows the projection along the main filament (Fil), and the green dashed and grey dash-dotted lines show the projections perpendicular to the main filament, with a rotation around the x (Filx) and y (Fily) axis, respectively.