CbcCutBranchingObject Class Reference

Cut branching object. More...

#include <CbcBranchCut.hpp>

Inheritance diagram for CbcCutBranchingObject:

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Collaboration diagram for CbcCutBranchingObject:

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List of all members.

Public Member Functions
	CbcCutBranchingObject ()
	Default constructor.
	CbcCutBranchingObject (CbcModel *model, OsiRowCut &down, OsiRowCut &up, bool canFix)
	Create a cut branching object.
	CbcCutBranchingObject (const CbcCutBranchingObject &)
	Copy constructor.
CbcCutBranchingObject &	operator= (const CbcCutBranchingObject &rhs)
	Assignment operator.
virtual CbcBranchingObject *	clone () const
	Clone.
virtual	~CbcCutBranchingObject ()
	Destructor.
virtual double	branch ()
	Sets the bounds for variables or adds a cut depending on the current arm of the branch and advances the object state to the next arm.
virtual void	print ()
	Print something about branch - only if log level high.
virtual bool	boundBranch () const
	Return true if branch should fix variables.
virtual int	type () const
	Return the type (an integer identifier) of `this`.
virtual int	compareOriginalObject (const CbcBranchingObject *brObj) const
	Compare the original object of `this` with the original object of `brObj`.
virtual CbcRangeCompare	compareBranchingObject (const CbcBranchingObject *brObj, const bool replaceIfOverlap=false)
	Compare the `this` with `brObj`.
Protected Attributes
OsiRowCut	down_
	Cut for the down arm (way_ = -1).
OsiRowCut	up_
	Cut for the up arm (way_ = 1).
bool	canFix_
	True if one way can fix variables.

Detailed Description

Cut branching object.

This object can specify a two-way branch in terms of two cuts

Definition at line 108 of file CbcBranchCut.hpp.

Constructor & Destructor Documentation

CbcCutBranchingObject::CbcCutBranchingObject ( )

Default constructor.

CbcCutBranchingObject::CbcCutBranchingObject	(	CbcModel *	model,
		OsiRowCut &	down,
		OsiRowCut &	up,
		bool	canFix
	)

Create a cut branching object.

Cut down will applied on way=-1, up on way==1 Assumed down will be first so way_ set to -1

CbcCutBranchingObject::CbcCutBranchingObject ( const CbcCutBranchingObject & )

Copy constructor.

virtual CbcCutBranchingObject::~CbcCutBranchingObject ( ) [virtual]

Destructor.

Member Function Documentation

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

Assignment operator.

Reimplemented from CbcBranchingObject.

virtual CbcBranchingObject* CbcCutBranchingObject::clone ( ) const [virtual]

Clone.

Implements CbcBranchingObject.

virtual double CbcCutBranchingObject::branch ( ) [virtual]

Sets the bounds for variables or adds a cut depending on the current arm of the branch and advances the object state to the next arm.

Returns change in guessed objective on next branch

Implements CbcBranchingObject.

virtual void CbcCutBranchingObject::print ( ) [virtual]

Print something about branch - only if log level high.

virtual bool CbcCutBranchingObject::boundBranch ( ) const [virtual]

Return true if branch should fix variables.

Reimplemented from OsiBranchingObject.

virtual int CbcCutBranchingObject::type ( ) const [inline, virtual]

Return the type (an integer identifier) of this.

Implements CbcBranchingObject.

Definition at line 159 of file CbcBranchCut.hpp.

virtual int CbcCutBranchingObject::compareOriginalObject ( const CbcBranchingObject * brObj ) const [virtual]

Compare the original object of this with the original object of brObj.

Assumes that there is an ordering of the original objects. This method should be invoked only if this and brObj are of the same type. Return negative/0/positive depending on whether this is smaller/same/larger than the argument.

virtual CbcRangeCompare CbcCutBranchingObject::compareBranchingObject	(	const CbcBranchingObject *	brObj,
		const bool	replaceIfOverlap = `false`
	)			`[virtual]`

Compare the this with brObj.

this and brObj must be os the same type and must have the same original object, but they may have different feasible regions. Return the appropriate CbcRangeCompare value (first argument being the sub/superset if that's the case). In case of overlap (and if replaceIfOverlap is true) replace the current branching object with one whose feasible region is the overlap.