Function1D

  • This documentation describes a Function of one argument, which can be either a constant value or a piecewise linear function.

  • If the function is piecewise linear, it's defined by a series of segments, each represented by a PieceWiseAffineSegment.

  • Each PieceWiseAffineSegment is determined by its starting and ending points (x, y coordinates).

  • The argument of the function represents different units such as weight (kg), time (min), or number of pallets.

Function of one argument.

JSON representation 
{

  // Union field function can be only one of the following:
  "constant": number,
  "pwl": {
    object (PieceWiseAffineFunction)
  }
  // End of list of possible types for union field function.
}
Fields
Union field function. The unity of the argument of the function is supposed to be: - if a weight: kg - if a time: min - if a number of pallets: 1 function can be only one of the following:
constant

number

The function is a constant.
pwl

object (PieceWiseAffineFunction)

The function is piecewise linear.

PieceWiseAffineFunction

Piecewise-linear function, limited to one argument. Design similar to https://github.com/google/or-tools/blob/stable/ortools/util/piecewise_linear_function.h

JSON representation 
{
  "segments": [
    {
      object (PieceWiseAffineSegment)
    }
  ]
}
Fields
segments[]

object (PieceWiseAffineSegment)

Linear segments of the function.

PieceWiseAffineSegment

One segment of a piecewise-linear function.

JSON representation 
{
  "startX": number,
  "startY": number,
  "endX": number,
  "endY": number
}
Fields
startX

number

Beginning of the segment: x.
startY

number

Beginning of the segment: y.
endX

number

End of the segment: x.
endY

number

End of the segment: y.