=== Piecewise constant (stepwise changing) area function ===
position_cm  area_cm2  perimeter_cm  articulator
0  0.631149  2.86139  N
0.570065  0.631149  2.86139  N
0.570065  0.482135  2.49943  N
1.14013  0.482135  2.49943  N
1.14013  0.372395  2.26614  N
1.7102  0.372395  2.26614  N
1.7102  0.333952  2.18082  N
2.28026  0.333952  2.18082  N
2.28026  2.24142  6.94231  N
2.85033  2.24142  6.94231  N
2.85033  4.34705  8.10774  N
3.42039  4.34705  8.10774  N
3.42039  4.42812  9.77676  N
3.99046  4.42812  9.77676  N
3.99046  3.92513  9.16872  N
4.56052  3.92513  9.16872  N
4.56052  3.91563  8.14175  N
5.13059  3.91563  8.14175  N
5.13059  4.3331  8.12047  T
5.70065  4.3331  8.12047  T
5.70065  4.27715  8.07664  T
6.27072  4.27715  8.07664  T
6.27072  4.17433  8.10944  T
6.84078  4.17433  8.10944  T
6.84078  4.1699  8.11009  T
7.41085  4.1699  8.11009  T
7.41085  4.29471  8.323  T
7.98092  4.29471  8.323  T
7.98092  4.74992  8.73924  T
8.55098  4.74992  8.73924  T
8.55098  5.54244  9.20312  T
9.12105  5.54244  9.20312  T
9.12105  5.10658  9.2959  T
9.67592  5.10658  9.2959  T
9.67592  5.17411  9.32294  T
10.2082  5.17411  9.32294  T
10.2082  4.71978  9.66743  T
10.7188  4.71978  9.66743  T
10.7188  4.21753  9.75589  T
11.2087  4.21753  9.75589  T
11.2087  3.6554  9.39451  T
11.679  3.6554  9.39451  T
11.679  3.60997  9.19564  T
12.1306  3.60997  9.19564  T
12.1306  3.94633  9.18567  T
12.5645  3.94633  9.18567  T
12.5645  4.59451  9.22594  T
12.9817  4.59451  9.22594  T
12.9817  4.99158  9.19287  T
13.3832  4.99158  9.19287  T
13.3832  5.26012  9.14746  T
13.7698  5.26012  9.14746  T
13.7698  5.13637  8.8711  T
14.1428  5.13637  8.8711  T
14.1428  4.56333  8.39392  T
14.5029  4.56333  8.39392  T
14.5029  4.45443  8.34434  T
14.8512  4.45443  8.34434  T
14.8512  3.84448  10.4783  T
15.1887  3.84448  10.4783  T
15.1887  3.52729  9.22203  T
15.5164  3.52729  9.22203  T
15.5164  2.88145  8.06173  T
15.8352  2.88145  8.06173  T
15.8352  2.53174  7.24639  T
16.1462  2.53174  7.24639  T
16.1462  2.33068  6.82645  I
16.4503  2.33068  6.82645  I
16.4503  1.88167  6.71987  I
16.7484  1.88167  6.71987  I
16.7484  1.41394  5.37418  L
17.0417  1.41394  5.37418  L
17.0417  0.852287  3.89735  L
17.331  0.852287  3.89735  L
17.331  0.769082  3.44786  L
17.6174  0.769082  3.44786  L
17.6174  0.771478  3.49085  L
17.9018  0.771478  3.49085  L
17.9018  0.834397  4.06571  L
18.1852  0.834397  4.06571  L

