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Figure 7,8. The influence of the size of the force density on the equilibrium shape.Fig. 4 shows a perpendicular net structure with a force density in the boundary of 1. In Fig. 5 the forcedensity in the boundary and the network is 5. The equilibrium shape of the surface is the same. Theconclusion is that if the ratio in force density of the boundary and the network is the same, the shape of thestructure will also be the same.Figure 9: The force density in the borders is 3 times bigger than in the network. Figure 10: The force density in theborder is 10 times bigger than in the network.The forces in the boundary are proportionately bigger than in the network. Therefore the curvature ofthe boundary is smaller and the surface of the network increases. Conclusion: if the force density in theboundary compared to the network is bigger, the network will become bigger and the curvature in thenetwork and boundary will become smaller.Figure 11: The force density in the boundary is 3 times smaller than in the network. Figure 12: The density in theboundary is 6 times smaller than in the network.The force density in the network is relatively big compared to the boundary cables. The curvature of the36