=== Piecewise constant (stepwise changing) area function ===
position_cm  area_cm2  perimeter_cm  articulator
0  0.660114  2.9232  N
0.456928  0.660114  2.9232  N
0.456928  0.535377  2.62834  N
0.913855  0.535377  2.62834  N
0.913855  0.432705  2.39792  N
1.37078  0.432705  2.39792  N
1.37078  0.346799  2.20812  N
1.82771  0.346799  2.20812  N
1.82771  0.330594  2.1732  N
2.28464  0.330594  2.1732  N
2.28464  2.00308  6.79675  N
2.74157  2.00308  6.79675  N
2.74157  3.90281  7.88424  N
3.19849  3.90281  7.88424  N
3.19849  3.87471  9.35037  N
3.65542  3.87471  9.35037  N
3.65542  3.00457  8.55124  N
4.11235  3.00457  8.55124  N
4.11235  2.58423  7.8698  N
4.56928  2.58423  7.8698  N
4.56928  2.58666  7.15878  N
5.0262  2.58666  7.15878  N
5.0262  3.06855  7.09449  T
5.48313  3.06855  7.09449  T
5.48313  3.20978  7.22344  T
5.94006  3.20978  7.22344  T
5.94006  3.35023  7.38934  T
6.39699  3.35023  7.38934  T
6.39699  3.80537  7.96629  T
6.85392  3.80537  7.96629  T
6.85392  4.68883  8.70878  T
7.31084  4.68883  8.70878  T
7.31084  4.26951  8.64915  T
7.83615  4.26951  8.64915  T
7.83615  4.16792  8.66067  T
8.34004  4.16792  8.66067  T
8.34004  3.69498  8.6186  T
8.82345  3.69498  8.6186  T
8.82345  3.21408  8.67312  T
9.28731  3.21408  8.67312  T
9.28731  2.54101  7.04415  T
9.73254  2.54101  7.04415  T
9.73254  2.12538  6.10349  T
10.1601  2.12538  6.10349  T
10.1601  2.08191  6.05646  T
10.5709  2.08191  6.05646  T
10.5709  2.18931  6.16352  T
10.9658  2.18931  6.16352  T
10.9658  2.44211  6.44616  T
11.3459  2.44211  6.44616  T
11.3459  2.62972  6.50226  T
11.7119  2.62972  6.50226  T
11.7119  2.69388  6.51925  T
12.065  2.69388  6.51925  T
12.065  2.72776  6.46036  T
12.4059  2.72776  6.46036  T
12.4059  2.66116  6.41168  T
12.7357  2.66116  6.41168  T
12.7357  2.36056  6.22923  T
13.0552  2.36056  6.22923  T
13.0552  2.16181  6.11721  T
13.3655  2.16181  6.11721  T
13.3655  2.06172  6.08266  T
13.6673  2.06172  6.08266  T
13.6673  2.01221  6.19141  T
13.9617  2.01221  6.19141  T
13.9617  1.88213  5.94336  T
14.2496  1.88213  5.94336  T
14.2496  1.71016  5.8329  T
14.5319  1.71016  5.8329  T
14.5319  1.71789  5.993  T
14.8095  1.71789  5.993  T
14.8095  1.81315  6.37203  T
15.0834  1.81315  6.37203  T
15.0834  2.04488  6.68026  I
15.3545  2.04488  6.68026  I
15.3545  2.01512  7.81747  L
15.6237  2.01512  7.81747  L
15.6237  2.87179  7.98681  L
15.8921  2.87179  7.98681  L

