Couenne::CouenneThreeWayBranchObj Class Reference

Spatial, three-way branching object. More...

#include <CouenneThreeWayBranchObj.hpp>

Inheritance diagram for Couenne::CouenneThreeWayBranchObj:

Inheritance graph

Collaboration diagram for Couenne::CouenneThreeWayBranchObj:

Collaboration graph

Public Member Functions
	CouenneThreeWayBranchObj (JnlstPtr jnlst, expression *, CouNumber, CouNumber, int=THREE_CENTER)
	Constructor. More...

	CouenneThreeWayBranchObj (const CouenneThreeWayBranchObj &src)
	Copy constructor. More...

virtual OsiBranchingObject *	clone () const
	Cloning method. More...

virtual double	branch (OsiSolverInterface *solver=NULL)
	Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state. More...

Protected Attributes
expression *	brVar_
	The variable this branching object refers to. More...

CouNumber	lcrop_
	left divider More...

CouNumber	rcrop_
	right divider More...

int	firstBranch_
	First branch to be performed: 0 is left, 1 is central, 2 is right. More...

JnlstPtr	jnlst_
	True if the associated variable is integer. More...

Detailed Description

Spatial, three-way branching object.

Branching is performed on continuous variables but a better convexification is sought around the current point by dividing the interval in three parts

Definition at line 28 of file CouenneThreeWayBranchObj.hpp.

Constructor & Destructor Documentation

CouenneThreeWayBranchObj::CouenneThreeWayBranchObj	(	JnlstPtr	jnlst,
		expression *	brVar,
		CouNumber	lcrop,
		CouNumber	rcrop,
		int	way = `THREE_CENTER`
	)

Constructor.

Get a variable as an argument and set value_ through a call to operator () of that exprAux.

Definition at line 21 of file CouenneThreeWayBranchObj.cpp.

Couenne::CouenneThreeWayBranchObj::CouenneThreeWayBranchObj ( const CouenneThreeWayBranchObj & src )

inline

Copy constructor.

Definition at line 42 of file CouenneThreeWayBranchObj.hpp.

Member Function Documentation

virtual OsiBranchingObject* Couenne::CouenneThreeWayBranchObj::clone ( ) const

inlinevirtual

Cloning method.

Definition at line 51 of file CouenneThreeWayBranchObj.hpp.

double CouenneThreeWayBranchObj::branch ( OsiSolverInterface * solver = NULL )

virtual

Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state.

Returns change in guessed objective on next (what does "next" mean here?) branch

Returns change in guessed objective on next branch

Definition at line 53 of file CouenneThreeWayBranchObj.cpp.

Member Data Documentation

expression* Couenne::CouenneThreeWayBranchObj::brVar_

protected

The variable this branching object refers to.

If the corresponding CouenneObject was created on w=f(x,y), it is either x or y.

Definition at line 67 of file CouenneThreeWayBranchObj.hpp.

CouNumber Couenne::CouenneThreeWayBranchObj::lcrop_

protected

left divider

Definition at line 69 of file CouenneThreeWayBranchObj.hpp.

CouNumber Couenne::CouenneThreeWayBranchObj::rcrop_

protected

right divider

Definition at line 70 of file CouenneThreeWayBranchObj.hpp.

int Couenne::CouenneThreeWayBranchObj::firstBranch_

protected

First branch to be performed: 0 is left, 1 is central, 2 is right.

Definition at line 73 of file CouenneThreeWayBranchObj.hpp.

JnlstPtr Couenne::CouenneThreeWayBranchObj::jnlst_

protected

True if the associated variable is integer.

SmartPointer to the Journalist

Definition at line 79 of file CouenneThreeWayBranchObj.hpp.

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

/tmp/OS-2.10.2/Couenne/src/branch/CouenneThreeWayBranchObj.hpp
/tmp/OS-2.10.2/Couenne/src/branch/CouenneThreeWayBranchObj.cpp