=== Piecewise constant (stepwise changing) area function ===
position_cm  area_cm2  perimeter_cm  articulator
0  0.644766  2.89167  N
0.537132  0.644766  2.89167  N
0.537132  0.499683  2.541  N
1.07426  0.499683  2.541  N
1.07426  0.397779  2.32258  N
1.61139  0.397779  2.32258  N
1.61139  0.343374  2.19721  N
2.14853  0.343374  2.19721  N
2.14853  1.68382  5.70771  N
2.68566  1.68382  5.70771  N
2.68566  5.45659  8.73047  N
3.22279  5.45659  8.73047  N
3.22279  5.9102  9.5585  N
3.75992  5.9102  9.5585  N
3.75992  6.19172  11.5537  N
4.29705  6.19172  11.5537  N
4.29705  6.09481  11.4064  N
4.83418  6.09481  11.4064  N
4.83418  6.33772  9.88145  N
5.37132  6.33772  9.88145  N
5.37132  7.34458  9.96374  T
5.90845  7.34458  9.96374  T
5.90845  7.60021  10.1558  T
6.44558  7.60021  10.1558  T
6.44558  7.65406  10.2137  T
6.98271  7.65406  10.2137  T
6.98271  7.77759  10.3644  T
7.51984  7.77759  10.3644  T
7.51984  7.98311  10.5549  T
8.05697  7.98311  10.5549  T
8.05697  8.0606  11.1716  T
8.59411  8.0606  11.1716  T
8.59411  6.62691  10.4481  T
9.11631  6.62691  10.4481  T
9.11631  5.88976  10.0277  T
9.61723  5.88976  10.0277  T
9.61723  4.53013  9.27821  T
10.0978  4.53013  9.27821  T
10.0978  2.98156  7.1619  T
10.5589  2.98156  7.1619  T
10.5589  1.67839  5.61837  T
11.0015  1.67839  5.61837  T
11.0015  0.912326  4.26731  T
11.4265  0.912326  4.26731  T
11.4265  0.585347  3.44188  T
11.8349  0.585347  3.44188  T
11.8349  0.458833  3.20992  T
12.2275  0.458833  3.20992  T
12.2275  0.40366  2.97101  T
12.6053  0.40366  2.97101  T
12.6053  0.402011  2.97109  T
12.9692  0.402011  2.97109  T
12.9692  0.433631  2.96521  T
13.3202  0.433631  2.96521  T
13.3202  0.419971  2.91235  T
13.6591  0.419971  2.91235  T
13.6591  0.392651  2.94935  T
13.987  0.392651  2.94935  T
13.987  0.266453  2.67685  T
14.3046  0.266453  2.67685  T
14.3046  0.250074  2.57097  T
14.613  0.250074  2.57097  T
14.613  0.250418  2.57203  T
14.9131  0.250418  2.57203  T
14.9131  0.292215  3.10761  T
15.2057  0.292215  3.10761  T
15.2057  0.447844  4.27697  T
15.4919  0.447844  4.27697  T
15.4919  0.653512  4.88431  T
15.7725  0.653512  4.88431  T
15.7725  0.742555  4.99612  T
16.0485  0.742555  4.99612  T
16.0485  0.588531  5.22093  I
16.3208  0.588531  5.22093  I
16.3208  0.46152  5.31897  I
16.5903  0.46152  5.31897  I
16.5903  1.18157  7.21807  L
16.858  1.18157  7.21807  L
16.858  2.46776  7.38409  L
17.1247  2.46776  7.38409  L

