=== Piecewise constant (stepwise changing) area function ===
position_cm  area_cm2  perimeter_cm  articulator
0  0.635341  2.87071  N
0.525507  0.635341  2.87071  N
0.525507  0.498792  2.53662  N
1.05101  0.498792  2.53662  N
1.05101  0.392451  2.31368  N
1.57652  0.392451  2.31368  N
1.57652  0.326345  2.16628  N
2.10203  0.326345  2.16628  N
2.10203  0.629474  3.65668  N
2.62753  0.629474  3.65668  N
2.62753  3.04903  7.47438  N
3.15304  3.04903  7.47438  N
3.15304  3.32731  8.59583  N
3.67855  3.32731  8.59583  N
3.67855  2.69561  8.7032  N
4.20406  2.69561  8.7032  N
4.20406  2.39307  8.33093  N
4.72956  2.39307  8.33093  N
4.72956  2.47675  7.37884  N
5.25507  2.47675  7.37884  N
5.25507  3.24977  7.39272  T
5.78058  3.24977  7.39272  T
5.78058  3.04717  7.11419  T
6.30608  3.04717  7.11419  T
6.30608  2.28386  6.32567  T
6.83159  2.28386  6.32567  T
6.83159  1.84599  5.84331  T
7.3571  1.84599  5.84331  T
7.3571  1.78026  5.82322  T
7.8826  1.78026  5.82322  T
7.8826  1.74038  6.09446  T
8.40811  1.74038  6.09446  T
8.40811  0.640051  3.90878  T
9.00126  0.640051  3.90878  T
9.00126  0.527078  3.67109  T
9.57023  0.527078  3.67109  T
9.57023  0.334718  2.92394  T
10.1161  0.334718  2.92394  T
10.1161  0.298388  2.79815  T
10.6398  0.298388  2.79815  T
10.6398  0.327643  2.93738  T
11.1426  0.327643  2.93738  T
11.1426  0.550034  3.90239  T
11.6253  0.550034  3.90239  T
11.6253  0.957316  4.90135  T
12.0891  0.957316  4.90135  T
12.0891  1.94846  6.52633  T
12.5351  1.94846  6.52633  T
12.5351  3.06366  7.65838  T
12.9642  3.06366  7.65838  T
12.9642  3.80585  8.20518  T
13.3776  3.80585  8.20518  T
13.3776  4.4187  8.56791  T
13.7762  4.4187  8.56791  T
13.7762  4.60933  8.49836  T
14.1612  4.60933  8.49836  T
14.1612  4.46225  8.29862  T
14.5336  4.46225  8.29862  T
14.5336  4.39959  8.27729  T
14.8944  4.39959  8.27729  T
14.8944  4.6686  10.6287  T
15.2447  4.6686  10.6287  T
15.2447  4.78042  10.0306  T
15.5855  4.78042  10.0306  T
15.5855  4.84934  9.27459  T
15.9179  4.84934  9.27459  T
15.9179  3.80524  8.31957  I
16.2429  3.80524  8.31957  I
16.2429  2.51637  7.04942  I
16.5617  2.51637  7.04942  I
16.5617  1.65131  5.6716  L
16.8752  1.65131  5.6716  L
16.8752  0.697034  3.8741  L
17.1844  0.697034  3.8741  L
17.1844  0.513122  3.21744  L
17.4906  0.513122  3.21744  L
17.4906  0.451534  3.13544  L
17.7946  0.451534  3.13544  L
17.7946  0.450906  3.32439  L
18.0976  0.450906  3.32439  L

