=== Piecewise constant (stepwise changing) area function ===
position_cm  area_cm2  perimeter_cm  articulator
0  0.642586  2.88407  N
0.503154  0.642586  2.88407  N
0.503154  0.509424  2.56417  N
1.00631  0.509424  2.56417  N
1.00631  0.404933  2.33834  N
1.50946  0.404933  2.33834  N
1.50946  0.325805  2.16463  N
2.01262  0.325805  2.16463  N
2.01262  0.401192  2.7105  N
2.51577  0.401192  2.7105  N
2.51577  2.85407  7.45917  N
3.01892  2.85407  7.45917  N
3.01892  3.16563  8.67893  N
3.52208  3.16563  8.67893  N
3.52208  1.82693  8.05947  N
4.02523  1.82693  8.05947  N
4.02523  1.30404  7.03671  N
4.52839  1.30404  7.03671  N
4.52839  1.28553  5.89326  N
5.03154  1.28553  5.89326  N
5.03154  1.47976  5.77597  T
5.53469  1.47976  5.77597  T
5.53469  1.20455  5.33474  T
6.03785  1.20455  5.33474  T
6.03785  0.907875  4.99312  T
6.541  0.907875  4.99312  T
6.541  0.835777  4.95554  T
7.04415  0.835777  4.95554  T
7.04415  0.858947  4.96346  T
7.54731  0.858947  4.96346  T
7.54731  1.1312  5.27786  T
8.05046  1.1312  5.27786  T
8.05046  0.589385  3.89483  T
8.59972  0.589385  3.89483  T
8.59972  0.626713  4.0142  T
9.12659  0.626713  4.0142  T
9.12659  0.848626  4.41916  T
9.63203  0.848626  4.41916  T
9.63203  0.994466  4.77426  T
10.117  0.994466  4.77426  T
10.117  1.40171  5.57617  T
10.5826  1.40171  5.57617  T
10.5826  2.24242  7.31544  T
11.0296  2.24242  7.31544  T
11.0296  3.22732  8.51344  T
11.4591  3.22732  8.51344  T
11.4591  4.63202  9.53242  T
11.8721  4.63202  9.53242  T
11.8721  6.05302  9.97672  T
12.2694  6.05302  9.97672  T
12.2694  7.33324  12.9329  T
12.6522  7.33324  12.9329  T
12.6522  8.0834  13.447  T
13.0214  8.0834  13.447  T
13.0214  8.60461  13.6499  T
13.3779  8.60461  13.6499  T
13.3779  8.22109  13.2993  T
13.7227  8.22109  13.2993  T
13.7227  7.85483  12.8902  T
14.0568  7.85483  12.8902  T
14.0568  6.93261  12.2119  T
14.3811  6.93261  12.2119  T
14.3811  6.1512  10.9597  T
14.6967  6.1512  10.9597  T
14.6967  5.06379  9.85827  T
15.0045  5.06379  9.85827  T
15.0045  4.82338  8.93491  T
15.3055  4.82338  8.93491  T
15.3055  3.18401  7.58823  I
15.6007  3.18401  7.58823  I
15.6007  2.19747  6.90093  I
15.891  2.19747  6.90093  I
15.891  1.64327  5.64298  L
16.1774  1.64327  5.64298  L
16.1774  1.11964  4.9041  L
16.4608  1.11964  4.9041  L
16.4608  1.03723  4.86541  L
16.7424  1.03723  4.86541  L
16.7424  1.03632  5.08323  L
17.0229  1.03632  5.08323  L

