Lotsize class. More...

#include <OsiBranchingObject.hpp>

Inheritance diagram for OsiLotsize:

Collaboration diagram for OsiLotsize:

Public Member Functions
	OsiLotsize ()
	OsiLotsize (const OsiSolverInterface solver, int iColumn, int numberPoints, const double points, bool range=false)
	OsiLotsize (const OsiLotsize &)
virtual OsiObject *	clone () const
	Clone.
OsiLotsize &	operator= (const OsiLotsize &rhs)
virtual	~OsiLotsize ()
virtual double	infeasibility (const OsiBranchingInformation *info, int &whichWay) const
	Infeasibility - large is 0.5.
virtual double	feasibleRegion (OsiSolverInterface solver, const OsiBranchingInformation info) const
	Set bounds to contain the current solution.
virtual OsiBranchingObject *	createBranch (OsiSolverInterface solver, const OsiBranchingInformation info, int way) const
	Creates a branching object.
void	setColumnNumber (int value)
	Set solver column number.
virtual int	columnNumber () const
	Column number if single column object -1 otherwise, so returns >= 0 Used by heuristics.
virtual void	resetBounds (const OsiSolverInterface *solver)
	Reset original upper and lower bound values from the solver.
bool	findRange (double value, double integerTolerance) const
	Finds range of interest so value is feasible in range range_ or infeasible between hi[range_] and lo[range_+1].
virtual void	floorCeiling (double &floorLotsize, double &ceilingLotsize, double value, double tolerance) const
	Returns floor and ceiling.
double	originalLowerBound () const
	Original bounds.
double	originalUpperBound () const
int	rangeType () const
	Type - 1 points, 2 ranges.
int	numberRanges () const
	Number of points.
double *	bound () const
	Ranges.
virtual void	resetSequenceEtc (int numberColumns, const int *originalColumns)
	Change column numbers after preprocessing.
virtual double	upEstimate () const
	Return "up" estimate (default 1.0e-5).
virtual double	downEstimate () const
	Return "down" estimate (default 1.0e-5).
virtual bool	canHandleShadowPrices () const
	Return true if knows how to deal with Pseudo Shadow Prices.
virtual bool	canDoHeuristics () const
	Return true if object can take part in normal heuristics.
Public Member Functions inherited from OsiObject2
	OsiObject2 ()
	Default Constructor.
	OsiObject2 (const OsiObject2 &)
	Copy constructor.
OsiObject2 &	operator= (const OsiObject2 &rhs)
	Assignment operator.
virtual	~OsiObject2 ()
	Destructor.
void	setPreferredWay (int value)
	Set preferred way of branching - -1 off, 0 down, 1 up (for 2-way).
virtual int	preferredWay () const
	Get preferred way of branching - -1 off, 0 down, 1 up (for 2-way).

Private Attributes
int	columnNumber_
	data
int	rangeType_
	Type - 1 points, 2 ranges.
int	numberRanges_
	Number of points.
double	largestGap_
double *	bound_
	Ranges.
int	range_
	Current range.

Additional Inherited Members
Protected Attributes inherited from OsiObject2
int	preferredWay_
	Preferred way of branching - -1 off, 0 down, 1 up (for 2-way).
double	otherInfeasibility_
	"Infeasibility" on other way

Detailed Description

Lotsize class.

Definition at line 904 of file OsiBranchingObject.hpp.

Constructor & Destructor Documentation

◆ OsiLotsize() [1/3]

OsiLotsize::OsiLotsize ( )

◆ OsiLotsize() [2/3]

OsiLotsize::OsiLotsize	(	const OsiSolverInterface *	solver,
		int	iColumn,
		int	numberPoints,
		const double *	points,
		bool	range = false )

◆ OsiLotsize() [3/3]

OsiLotsize::OsiLotsize ( const OsiLotsize & )

◆ ~OsiLotsize()

virtual OsiLotsize::~OsiLotsize ( )

virtual

Member Function Documentation

◆ clone()

virtual OsiObject * OsiLotsize::clone ( ) const

virtual

Clone.

◆ operator=()

OsiLotsize & OsiLotsize::operator= ( const OsiLotsize & rhs )

◆ infeasibility()

virtual double OsiLotsize::infeasibility	(	const OsiBranchingInformation *	info,
		int &	whichWay ) const

virtual

Infeasibility - large is 0.5.

◆ feasibleRegion()

virtual double OsiLotsize::feasibleRegion	(	OsiSolverInterface *	solver,
		const OsiBranchingInformation *	info ) const

virtual

Set bounds to contain the current solution.

More precisely, for the variable associated with this object, take the value given in the current solution, force it within the current bounds if required, then set the bounds to fix the variable at the integer nearest the solution value. Returns amount it had to move variable.

◆ createBranch()

virtual OsiBranchingObject * OsiLotsize::createBranch	(	OsiSolverInterface *	solver,
		const OsiBranchingInformation *	info,
		int	way ) const

virtual

Creates a branching object.

The preferred direction is set by way, 0 for down, 1 for up.

◆ setColumnNumber()

void OsiLotsize::setColumnNumber ( int value )

inline

Set solver column number.

Definition at line 949 of file OsiBranchingObject.hpp.

◆ columnNumber()

virtual int OsiLotsize::columnNumber ( ) const

virtual

Column number if single column object -1 otherwise, so returns >= 0 Used by heuristics.

◆ resetBounds()

virtual void OsiLotsize::resetBounds ( const OsiSolverInterface * solver )

virtual

Reset original upper and lower bound values from the solver.

Handy for updating bounds held in this object after bounds held in the solver have been tightened.

◆ findRange()

bool OsiLotsize::findRange	(	double	value,
		double	integerTolerance ) const

Finds range of interest so value is feasible in range range_ or infeasible between hi[range_] and lo[range_+1].

Returns true if feasible.

◆ floorCeiling()

virtual void OsiLotsize::floorCeiling	(	double &	floorLotsize,
		double &	ceilingLotsize,
		double	value,
		double	tolerance ) const

virtual

Returns floor and ceiling.

◆ originalLowerBound()

double OsiLotsize::originalLowerBound ( ) const

inline

Original bounds.

Definition at line 977 of file OsiBranchingObject.hpp.

◆ originalUpperBound()

double OsiLotsize::originalUpperBound ( ) const

inline

Definition at line 981 of file OsiBranchingObject.hpp.

◆ rangeType()

int OsiLotsize::rangeType ( ) const

inline

Type - 1 points, 2 ranges.

Definition at line 986 of file OsiBranchingObject.hpp.

◆ numberRanges()

int OsiLotsize::numberRanges ( ) const

inline

Number of points.

Definition at line 991 of file OsiBranchingObject.hpp.

◆ bound()

double * OsiLotsize::bound ( ) const

inline

Ranges.

Definition at line 996 of file OsiBranchingObject.hpp.

◆ resetSequenceEtc()

virtual void OsiLotsize::resetSequenceEtc	(	int	numberColumns,
		const int *	originalColumns )

virtual

Change column numbers after preprocessing.

◆ upEstimate()

virtual double OsiLotsize::upEstimate ( ) const

virtual

Return "up" estimate (default 1.0e-5).

◆ downEstimate()

virtual double OsiLotsize::downEstimate ( ) const

virtual

Return "down" estimate (default 1.0e-5).

◆ canHandleShadowPrices()

virtual bool OsiLotsize::canHandleShadowPrices ( ) const

inlinevirtual

Return true if knows how to deal with Pseudo Shadow Prices.

Definition at line 1009 of file OsiBranchingObject.hpp.

◆ canDoHeuristics()

virtual bool OsiLotsize::canDoHeuristics ( ) const

inlinevirtual

Return true if object can take part in normal heuristics.

Definition at line 1015 of file OsiBranchingObject.hpp.

Member Data Documentation

◆ columnNumber_

int OsiLotsize::columnNumber_

private

data

Column number in model

Definition at line 1024 of file OsiBranchingObject.hpp.

◆ rangeType_

int OsiLotsize::rangeType_

private

Type - 1 points, 2 ranges.

Definition at line 1026 of file OsiBranchingObject.hpp.

◆ numberRanges_

int OsiLotsize::numberRanges_

private

Number of points.

Definition at line 1028 of file OsiBranchingObject.hpp.

◆ largestGap_

double OsiLotsize::largestGap_

private

Definition at line 1030 of file OsiBranchingObject.hpp.

◆ bound_

double* OsiLotsize::bound_

private

Ranges.

Definition at line 1032 of file OsiBranchingObject.hpp.

◆ range_

int OsiLotsize::range_

mutableprivate

Current range.

Definition at line 1034 of file OsiBranchingObject.hpp.

The documentation for this class was generated from the following file:

/builddir/build/BUILD/coin-or-Osi-0.108.12-build/Osi-releases-0.108.12/Osi/src/Osi/OsiBranchingObject.hpp

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ OsiLotsize() [1/3]

◆ OsiLotsize() [2/3]

◆ OsiLotsize() [3/3]

◆ ~OsiLotsize()

Member Function Documentation

◆ clone()

◆ operator=()

◆ infeasibility()

◆ feasibleRegion()

◆ createBranch()

◆ setColumnNumber()

◆ columnNumber()

◆ resetBounds()

◆ findRange()

◆ floorCeiling()

◆ originalLowerBound()

◆ originalUpperBound()

◆ rangeType()

◆ numberRanges()

◆ bound()

◆ resetSequenceEtc()

◆ upEstimate()

◆ downEstimate()

◆ canHandleShadowPrices()

◆ canDoHeuristics()

Member Data Documentation

◆ columnNumber_

◆ rangeType_

◆ numberRanges_

◆ largestGap_

◆ bound_

◆ range_