CbcIntegerPseudoCostBranchingObject Class Reference
Simple branching object for an integer variable with pseudo costs. More...
#include <CbcBranchActual.hpp>
Public Member Functions | |
| CbcIntegerPseudoCostBranchingObject () | |
| Default constructor. | |
| CbcIntegerPseudoCostBranchingObject (CbcModel *model, int variable, int way, double value) | |
| Create a standard floor/ceiling branch object. | |
| CbcIntegerPseudoCostBranchingObject (CbcModel *model, int variable, int way, double lowerValue, double upperValue) | |
| Create a degenerate branch object. | |
| CbcIntegerPseudoCostBranchingObject (const CbcIntegerPseudoCostBranchingObject &) | |
| Copy constructor. | |
| CbcIntegerPseudoCostBranchingObject & | operator= (const CbcIntegerPseudoCostBranchingObject &rhs) |
| Assignment operator. | |
| virtual CbcBranchingObject * | clone () const |
| Clone. | |
| virtual | ~CbcIntegerPseudoCostBranchingObject () |
| Destructor. | |
| virtual double | branch () |
| Sets the bounds for the variable according to the current arm of the branch and advances the object state to the next arm. | |
| double | changeInGuessed () const |
| Change in guessed. | |
| void | setChangeInGuessed (double value) |
| Set change in guessed. | |
| virtual int | type () const |
Return the type (an integer identifier) of this. | |
| virtual CbcRangeCompare | compareBranchingObject (const CbcBranchingObject *brObj, const bool replaceIfOverlap=false) |
Compare the this with brObj. | |
Protected Attributes | |
| double | changeInGuessed_ |
| Change in guessed objective value for next branch. | |
Detailed Description
Simple branching object for an integer variable with pseudo costs.
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 633 of file CbcBranchActual.hpp.
Constructor & Destructor Documentation
| CbcIntegerPseudoCostBranchingObject::CbcIntegerPseudoCostBranchingObject | ( | ) |
Default constructor.
| CbcIntegerPseudoCostBranchingObject::CbcIntegerPseudoCostBranchingObject | ( | CbcModel * | model, | |
| int | variable, | |||
| int | way, | |||
| double | value | |||
| ) |
Create a standard floor/ceiling branch object.
Specifies a simple two-way branch. Let value = x*. One arm of the branch will be is lb <= x <= floor(x*), the other ceil(x*) <= x <= ub. Specify way = -1 to set the object state to perform the down arm first, way = 1 for the up arm.
| CbcIntegerPseudoCostBranchingObject::CbcIntegerPseudoCostBranchingObject | ( | CbcModel * | model, | |
| int | variable, | |||
| int | way, | |||
| double | lowerValue, | |||
| double | upperValue | |||
| ) |
Create a degenerate branch object.
Specifies a `one-way branch'. Calling branch() for this object will always result in lowerValue <= x <= upperValue. Used to fix a variable when lowerValue = upperValue.
| CbcIntegerPseudoCostBranchingObject::CbcIntegerPseudoCostBranchingObject | ( | const CbcIntegerPseudoCostBranchingObject & | ) |
Copy constructor.
| virtual CbcIntegerPseudoCostBranchingObject::~CbcIntegerPseudoCostBranchingObject | ( | ) | [virtual] |
Destructor.
Member Function Documentation
| CbcIntegerPseudoCostBranchingObject& CbcIntegerPseudoCostBranchingObject::operator= | ( | const CbcIntegerPseudoCostBranchingObject & | rhs | ) |
Assignment operator.
Reimplemented from CbcIntegerBranchingObject.
| virtual CbcBranchingObject* CbcIntegerPseudoCostBranchingObject::clone | ( | ) | const [virtual] |
Clone.
Reimplemented from CbcIntegerBranchingObject.
| virtual double CbcIntegerPseudoCostBranchingObject::branch | ( | ) | [virtual] |
Sets the bounds for the variable according to the current arm of the branch and advances the object state to the next arm.
This version also changes guessed objective value
Reimplemented from CbcIntegerBranchingObject.
| double CbcIntegerPseudoCostBranchingObject::changeInGuessed | ( | ) | const [inline] |
Change in guessed.
Definition at line 680 of file CbcBranchActual.hpp.
| void CbcIntegerPseudoCostBranchingObject::setChangeInGuessed | ( | double | value | ) | [inline] |
Set change in guessed.
Definition at line 683 of file CbcBranchActual.hpp.
| virtual int CbcIntegerPseudoCostBranchingObject::type | ( | ) | const [inline, virtual] |
Return the type (an integer identifier) of this.
Reimplemented from CbcIntegerBranchingObject.
Definition at line 687 of file CbcBranchActual.hpp.
| virtual CbcRangeCompare CbcIntegerPseudoCostBranchingObject::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.
Reimplemented from CbcIntegerBranchingObject.
Member Data Documentation
double CbcIntegerPseudoCostBranchingObject::changeInGuessed_ [protected] |
Change in guessed objective value for next branch.
Definition at line 702 of file CbcBranchActual.hpp.
The documentation for this class was generated from the following file:
- /home/coin/svn-release/OptimizationSuite-1.1.0/Cbc/src/CbcBranchActual.hpp
