Different slices to analyze the angle of repose, rms height, and rms slope. The simulation box is divided into five equal slices along the y-axis, indicated by translucent blue planes. The angle of repose and surface roughness are calculated for each slice to understand the spatial variation of these properties across the box. Particle colors are based on material type: magenta for NS and green for HS. The yellow color is used for the floor particles, which are the HS in this case.