CglTreeInfo Class Reference

Information about where the cut generator is invoked from. More...

#include <CglTreeInfo.hpp>

Inheritance diagram for CglTreeInfo:

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Collaboration diagram for CglTreeInfo:

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List of all members.

Public Member Functions

 CglTreeInfo ()
 Default constructor.
 CglTreeInfo (const CglTreeInfo &)
 Copy constructor.
virtual CglTreeInfoclone () const
 Clone.
CglTreeInfooperator= (const CglTreeInfo &rhs)
 Assignment operator.
virtual ~CglTreeInfo ()
 Destructor.
virtual void fixes (int variable, int toValue, int fixedVariable, double fixedToValue)
 Take action if cut generator can fix a variable (toValue -1 for down, +1 for up).
virtual bool initializeFixing ()
 Initalizes fixing arrays etc - returns true if we want to save info.

Public Attributes

int level
 The level of the search tree node.
int pass
 How many times the cut generator was already invoked in this search tree node.
int formulation_rows
 The number of rows in the original formulation.
bool inTree
 Set true if in tree (to avoid ambiguity at first branch).
OsiRowCut ** strengthenRow
 Replacement array.

Detailed Description

Information about where the cut generator is invoked from.

Definition at line 12 of file CglTreeInfo.hpp.


Constructor & Destructor Documentation

CglTreeInfo::CglTreeInfo (  ) 

Default constructor.

CglTreeInfo::CglTreeInfo ( const CglTreeInfo  ) 

Copy constructor.

virtual CglTreeInfo::~CglTreeInfo (  )  [virtual]

Destructor.


Member Function Documentation

virtual CglTreeInfo* CglTreeInfo::clone (  )  const [virtual]

Clone.

Reimplemented in CglTreeProbingInfo.

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

Assignment operator.

virtual void CglTreeInfo::fixes ( int  variable,
int  toValue,
int  fixedVariable,
double  fixedToValue 
) [inline, virtual]

Take action if cut generator can fix a variable (toValue -1 for down, +1 for up).

Reimplemented in CglTreeProbingInfo.

Definition at line 52 of file CglTreeInfo.hpp.

virtual bool CglTreeInfo::initializeFixing (  )  [inline, virtual]

Initalizes fixing arrays etc - returns true if we want to save info.

Reimplemented in CglTreeProbingInfo.

Definition at line 54 of file CglTreeInfo.hpp.


Member Data Documentation

int CglTreeInfo::level

The level of the search tree node.

Definition at line 15 of file CglTreeInfo.hpp.

int CglTreeInfo::pass

How many times the cut generator was already invoked in this search tree node.

Definition at line 18 of file CglTreeInfo.hpp.

int CglTreeInfo::formulation_rows

The number of rows in the original formulation.

Some generators may not want to consider already generated rows when generating new ones.

Definition at line 21 of file CglTreeInfo.hpp.

bool CglTreeInfo::inTree

Set true if in tree (to avoid ambiguity at first branch).

Definition at line 23 of file CglTreeInfo.hpp.

OsiRowCut** CglTreeInfo::strengthenRow

Replacement array.

Before Branch and Cut it may be beneficial to strengthen rows rather than adding cuts. If this array is not NULL then the cut generator can place a pointer to the stronger cut in this array which is number of rows in size.

A null (i.e. zero elements and free rhs) cut indicates that the row is useless and can be removed.

The calling function can then replace those rows.

Definition at line 33 of file CglTreeInfo.hpp.


The documentation for this class was generated from the following file:
Generated on Sun Dec 16 03:03:27 2007 for coin-Bcp by  doxygen 1.4.7