Plates, cuboids, triple prisms, quadruple prisms, cylinders were adopted with three kinds of blockage ratios, 20%, 40% and 60%.

• 选用五种立体结构障碍物，平板、长方体、三棱柱、四棱柱和圆柱，其阻塞比分别有20%25、40%25和60%25。