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Public Member Functions | Protected Attributes | List of all members
OsiSOS Class Reference

Define Special Ordered Sets of type 1 and 2. More...

`#include <OsiBranchingObject.hpp>`

Inheritance diagram for OsiSOS:
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Collaboration diagram for OsiSOS:
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## Public Member Functions
| OsiSOS ()
| OsiSOS (const OsiSolverInterface *solver, int numberMembers, const int *which, const double *weights, int type=1)
| Useful constructor - which are indices and weights are also given. More...
| OsiSOS (const OsiSOS &)
virtual OsiObject * | clone () const
| Clone. More...
OsiSOS & | operator= (const OsiSOS &rhs)
virtual | ~OsiSOS ()
virtual double | infeasibility (const OsiBranchingInformation *info, int &whichWay) const
| Infeasibility - large is 0.5. More...
virtual double | feasibleRegion (OsiSolverInterface *solver, const OsiBranchingInformation *info) const
| Set bounds to fix the variable at the current (integer) value. More...
virtual OsiBranchingObject * | createBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way) const
| Creates a branching object. More...
virtual double | upEstimate () const
| Return "up" estimate (default 1.0e-5) More...
virtual double | downEstimate () const
| Return "down" estimate (default 1.0e-5) More...
virtual void | resetSequenceEtc (int numberColumns, const int *originalColumns)
| Redoes data when sequence numbers change. More...
int | numberMembers () const
| Number of members. More...
const int * | members () const
| Members (indices in range 0 ... numberColumns-1) More...
int | sosType () const
| SOS type. More...
int | setType () const
| SOS type. More...
const double * | weights () const
| Array of weights. More...
virtual bool | canDoHeuristics () const
| Return true if object can take part in normal heuristics. More...
void | setIntegerValued (bool yesNo)
| Set whether set is integer valued or not. More...
virtual bool | canHandleShadowPrices () const
| Return true if knows how to deal with Pseudo Shadow Prices. More...
void | setNumberMembers (int value)
| Set number of members. More...
int * | mutableMembers () const
| Members (indices in range 0 ... numberColumns-1) More...
void | setSosType (int value)
| Set SOS type. More...
double * | mutableWeights () const
| Array of weights. More...
Public Member Functions inherited from OsiObject2
| OsiObject2 ()
| Default Constructor. More...
| OsiObject2 (const OsiObject2 &)
| Copy constructor. More...
OsiObject2 & | operator= (const OsiObject2 &rhs)
| Assignment operator. More...
virtual | ~OsiObject2 ()
| Destructor. More...
void | setPreferredWay (int value)
| Set preferred way of branching - -1 off, 0 down, 1 up (for 2-way) More...
virtual int | preferredWay () const
| Get preferred way of branching - -1 off, 0 down, 1 up (for 2-way) More...
Public Member Functions inherited from OsiObject
| OsiObject ()
| Default Constructor. More...
| OsiObject (const OsiObject &)
| Copy constructor. More...
OsiObject & | operator= (const OsiObject &rhs)
| Assignment operator. More...
virtual | ~OsiObject ()
| Destructor. More...
double | infeasibility (const OsiSolverInterface *solver, int &whichWay) const
| Infeasibility of the object. More...
virtual double | checkInfeasibility (const OsiBranchingInformation *info) const
virtual double | feasibleRegion (OsiSolverInterface *solver) const
| For the variable(s) referenced by the object, look at the current solution and set bounds to match the solution. More...
virtual bool | canMoveToNearest () const
| Return true if object can take part in move to nearest heuristic. More...
virtual int | columnNumber () const
| Column number if single column object -1 otherwise, Used by heuristics. More...
int | priority () const
| Return Priority - note 1 is highest priority. More...
void | setPriority (int priority)
| Set priority. More...
virtual bool | boundBranch () const
| Return true if branch should only bound variables. More...
int | numberWays () const
| Return maximum number of ways branch may have. More...
void | setNumberWays (int numberWays)
| Set maximum number of ways branch may have. More...
void | setWhichWay (int way)
| Return preferred way to branch. More...
int | whichWay () const
| Return current preferred way to branch. More...
double | infeasibility () const
| Return infeasibility. More...
virtual void | resetBounds (const OsiSolverInterface *)
| Reset variable bounds to their original values. More...
virtual void | updateBefore (const OsiObject *)
| Updates stuff like pseudocosts before threads. More...
virtual void | updateAfter (const OsiObject *, const OsiObject *)
| Updates stuff like pseudocosts after threads finished. More...

## Protected Attributes
int * | members_
| data More...
double * | weights_
| Weights. More...
int | numberMembers_
| Number of members. More...
int | sosType_
| SOS type. More...
bool | integerValued_
| Whether integer valued. More...
Protected Attributes inherited from OsiObject2
int | preferredWay_
| Preferred way of branching - -1 off, 0 down, 1 up (for 2-way) More...
double | otherInfeasibility_
| "Infeasibility" on other way More...
Protected Attributes inherited from OsiObject
double | infeasibility_
| data More...
short | whichWay_
| Computed preferred way to branch. More...
short | numberWays_
| Maximum number of ways on branch. More...
int | priority_
| Priority. More...

## Detailed Description

Define Special Ordered Sets of type 1 and 2.

These do not have to be integer - so do not appear in lists of integers.

which_ points columns of matrix

Definition at line 674 of file OsiBranchingObject.hpp.

## Constructor & Destructor Documentation

OsiSOS::OsiSOS | ( |  | ) |

OsiSOS::OsiSOS | ( | const OsiSolverInterface * | solver,
|  | int | numberMembers,
|  | const int * | which,
|  | const double * | weights,
|  | int | type = `1`
| ) |  |

Useful constructor - which are indices and weights are also given.

If null then 0,1,2.. type is SOS type

OsiSOS::OsiSOS | ( | const OsiSOS & |  | ) |

virtual OsiSOS::~OsiSOS | ( |  | ) |
| virtual

## Member Function Documentation

virtual OsiObject* OsiSOS::clone | ( |  | ) | const
| virtual

Clone.

Implements OsiObject.

OsiSOS& OsiSOS::operator= | ( | const OsiSOS & | rhs | ) |

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

Infeasibility - large is 0.5.

Implements OsiObject.

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

Set bounds to fix the variable at the current (integer) value.

Given an integer value, set the lower and upper bounds to fix the variable. Returns amount it had to move variable.

Implements OsiObject.

virtual OsiBranchingObject* OsiSOS::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.

Reimplemented from OsiObject.

virtual double OsiSOS::upEstimate | ( |  | ) | const
| virtual

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

Reimplemented from OsiObject.

virtual double OsiSOS::downEstimate | ( |  | ) | const
| virtual

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

Reimplemented from OsiObject.

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

Redoes data when sequence numbers change.

Reimplemented from OsiObject.

int OsiSOS::numberMembers | ( |  | ) | const
| inline

Number of members.

Definition at line 726 of file OsiBranchingObject.hpp.

const int* OsiSOS::members | ( |  | ) | const
| inline

Members (indices in range 0 ... numberColumns-1)

Definition at line 730 of file OsiBranchingObject.hpp.

int OsiSOS::sosType | ( |  | ) | const
| inline

SOS type.

Definition at line 734 of file OsiBranchingObject.hpp.

int OsiSOS::setType | ( |  | ) | const
| inline

SOS type.

Definition at line 738 of file OsiBranchingObject.hpp.

const double* OsiSOS::weights | ( |  | ) | const
| inline

Array of weights.

Definition at line 742 of file OsiBranchingObject.hpp.

virtual bool OsiSOS::canDoHeuristics | ( |  | ) | const
| inline virtual

Return true if object can take part in normal heuristics.

Reimplemented from OsiObject.

Definition at line 747 of file OsiBranchingObject.hpp.

void OsiSOS::setIntegerValued | ( | bool | yesNo | ) |
| inline

Set whether set is integer valued or not.

Definition at line 750 of file OsiBranchingObject.hpp.

virtual bool OsiSOS::canHandleShadowPrices | ( |  | ) | const
| inline virtual

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

Reimplemented from OsiObject.

Definition at line 753 of file OsiBranchingObject.hpp.

void OsiSOS::setNumberMembers | ( | int | value | ) |
| inline

Set number of members.

Definition at line 756 of file OsiBranchingObject.hpp.

int* OsiSOS::mutableMembers | ( |  | ) | const
| inline

Members (indices in range 0 ... numberColumns-1)

Definition at line 760 of file OsiBranchingObject.hpp.

void OsiSOS::setSosType | ( | int | value | ) |
| inline

Set SOS type.

Definition at line 764 of file OsiBranchingObject.hpp.

double* OsiSOS::mutableWeights | ( |  | ) | const
| inline

Array of weights.

Definition at line 768 of file OsiBranchingObject.hpp.

## Member Data Documentation

int* OsiSOS::members_
| protected

data

Members (indices in range 0 ... numberColumns-1)

Definition at line 774 of file OsiBranchingObject.hpp.

double* OsiSOS::weights_
| protected

Weights.

Definition at line 776 of file OsiBranchingObject.hpp.

int OsiSOS::numberMembers_
| protected

Number of members.

Definition at line 779 of file OsiBranchingObject.hpp.

int OsiSOS::sosType_
| protected

SOS type.

Definition at line 781 of file OsiBranchingObject.hpp.

bool OsiSOS::integerValued_
| protected

Whether integer valued.

Definition at line 783 of file OsiBranchingObject.hpp.

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

- /tmp/Osi-0.107.7/Osi/src/Osi/OsiBranchingObject.hpp