OM offers two types of objects for the manipulation of 2D curves :
the BPF and BPC objects – Break Point Function and Break-Point Curve .
A BPF represents a function as a set of 2D points with increasing x values.
In the mathematical sense, a BPF can be considered as a function y = f(x).
A BPC is a free curve defined in a 2D plane.
BPF and BPC objects have four inputs and outputs :
The BPF or BPC points can be set by connecting lists of values to the "x-points" and "y-points" inputs, or with the BPF/BPC editor.
In a BPF, x-points must be in a strictly increasing order.
If the list is not ordered correctly, the points will be created from the y-points values and sorted automatically before the actual BPF is created.
If the x or y list is shorter than the other, the last interval in the shorter list is repeated until the right number of points is reached.
For instance, this allows to create a BPF with a list of y-points and a periodic x interval.
The " decimals" input determines the number of decimals per coordinates , that is, the precision of the curve.
Coordinates are therefore rounded according to the number of decimals.
If "decimals"= 0, all coordinates are rounded to the closest integer.
A "break-point" function is a function defined by a finite number of points (x,y).