Lotsize branching object. More...
#include <OsiBranchingObject.hpp>
Public Member Functions | |
OsiLotsizeBranchingObject () | |
Default constructor. | |
OsiLotsizeBranchingObject (OsiSolverInterface *solver, const OsiLotsize *originalObject, int way, double value) | |
Create a lotsize floor/ceiling branch object. | |
OsiLotsizeBranchingObject (const OsiLotsizeBranchingObject &) | |
Copy constructor. | |
OsiLotsizeBranchingObject & | operator= (const OsiLotsizeBranchingObject &rhs) |
Assignment operator. | |
virtual OsiBranchingObject * | clone () const |
Clone. | |
virtual | ~OsiLotsizeBranchingObject () |
Destructor. | |
virtual double | branch (OsiSolverInterface *solver) |
Sets the bounds for the variable according to the current arm of the branch and advances the object state to the next arm. | |
virtual void | print (const OsiSolverInterface *solver=NULL) |
Print something about branch - only if log level high. | |
Protected Attributes | |
double | down_ [2] |
Lower [0] and upper [1] bounds for the down arm (way_ = -1). | |
double | up_ [2] |
Lower [0] and upper [1] bounds for the up arm (way_ = 1). |
Lotsize branching object.
This object can specify a two-way branch on an integer variable. For each arm of the branch, the upper and lower bounds on the variable can be independently specified.
Variable_ holds the index of the integer variable in the integerVariable_ array of the model.
Definition at line 942 of file OsiBranchingObject.hpp.
OsiLotsizeBranchingObject::OsiLotsizeBranchingObject | ( | ) |
Default constructor.
OsiLotsizeBranchingObject::OsiLotsizeBranchingObject | ( | OsiSolverInterface * | solver, | |
const OsiLotsize * | originalObject, | |||
int | way, | |||
double | value | |||
) |
Create a lotsize floor/ceiling branch object.
Specifies a simple two-way branch. Let value
= x*. One arm of the branch will be is lb <= x <= valid range below(x*), the other valid range above(x*) <= x <= ub. Specify way = -1 to set the object state to perform the down arm first, way = 1 for the up arm.
OsiLotsizeBranchingObject::OsiLotsizeBranchingObject | ( | const OsiLotsizeBranchingObject & | ) |
Copy constructor.
virtual OsiLotsizeBranchingObject::~OsiLotsizeBranchingObject | ( | ) | [virtual] |
Destructor.
OsiLotsizeBranchingObject& OsiLotsizeBranchingObject::operator= | ( | const OsiLotsizeBranchingObject & | rhs | ) |
Assignment operator.
Reimplemented from OsiTwoWayBranchingObject.
virtual OsiBranchingObject* OsiLotsizeBranchingObject::clone | ( | ) | const [virtual] |
Clone.
Implements OsiBranchingObject.
virtual double OsiLotsizeBranchingObject::branch | ( | OsiSolverInterface * | solver | ) | [virtual] |
Sets the bounds for the variable according to the current arm of the branch and advances the object state to the next arm.
state. Returns change in guessed objective on next branch
Implements OsiTwoWayBranchingObject.
virtual void OsiLotsizeBranchingObject::print | ( | const OsiSolverInterface * | solver = NULL |
) | [virtual] |
Print something about branch - only if log level high.
double OsiLotsizeBranchingObject::down_[2] [protected] |
Lower [0] and upper [1] bounds for the down arm (way_ = -1).
Definition at line 986 of file OsiBranchingObject.hpp.
double OsiLotsizeBranchingObject::up_[2] [protected] |
Lower [0] and upper [1] bounds for the up arm (way_ = 1).
Definition at line 988 of file OsiBranchingObject.hpp.