#include <piecewise_linear_function.h>

Public Member Functions
	PiecewiseSegment (int64_t point_x, int64_t point_y, int64_t slope, int64_t other_point_x)

int64_t	Value (int64_t x) const
	Returns the value of the segment at point x.

int64_t	start_x () const
	Returns the start of the segment's domain.

int64_t	end_x () const
	Returns the end of the segment's domain.

int64_t	start_y () const
	Returns the value at the start of the segment's domain.

int64_t	end_y () const
	Returns the value at the end of the segment's domain.

int64_t	slope () const
	Returns the segment's slope.

int64_t	intersection_y () const
	Returns the intersection of the segment's extension with the y axis.

void	ExpandEnd (int64_t end_x)

void	AddConstantToX (int64_t constant)
	Adds 'constant' to the 'x' the segments.

void	AddConstantToY (int64_t constant)
	Adds 'constant' to the 'y' the segments.

std::string	DebugString () const

Static Public Member Functions
static bool	SortComparator (const PiecewiseSegment &segment1, const PiecewiseSegment &segment2)
	Comparison method useful for sorting a sequence of segments.

static bool	FindComparator (int64_t point, const PiecewiseSegment &segment)
	Comparison method useful for finding in which segment a point belongs.

Detailed Description

This structure stores one straight line. It contains the start point, the end point and the slope. It is defined for x values between start_x and end_x.

Definition at line 33 of file piecewise_linear_function.h.

Constructor & Destructor Documentation

◆ PiecewiseSegment()

operations_research::PiecewiseSegment::PiecewiseSegment	(	int64_t	point_x,
		int64_t	point_y,
		int64_t	slope,
		int64_t	other_point_x )

Definition at line 81 of file piecewise_linear_function.cc.

Member Function Documentation

◆ AddConstantToX()

void operations_research::PiecewiseSegment::AddConstantToX ( int64_t constant )

Adds 'constant' to the 'x' the segments.

Definition at line 245 of file piecewise_linear_function.cc.

◆ AddConstantToY()

void operations_research::PiecewiseSegment::AddConstantToY ( int64_t constant )

Adds 'constant' to the 'y' the segments.

Definition at line 255 of file piecewise_linear_function.cc.

◆ DebugString()

std::string operations_research::PiecewiseSegment::DebugString ( ) const

Definition at line 263 of file piecewise_linear_function.cc.

◆ end_x()

int64_t operations_research::PiecewiseSegment::end_x ( ) const

inline

Returns the end of the segment's domain.

Definition at line 43 of file piecewise_linear_function.h.

◆ end_y()

int64_t operations_research::PiecewiseSegment::end_y ( ) const

inline

Returns the value at the end of the segment's domain.

Definition at line 47 of file piecewise_linear_function.h.

◆ ExpandEnd()

void operations_research::PiecewiseSegment::ExpandEnd ( int64_t end_x )

Expands segment to the specified endpoint, if it is further than the current endpoint. The reference point of the segment doesn't change for overflow reasons.

Definition at line 241 of file piecewise_linear_function.cc.