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ClpConstraintQuadratic Class Reference

Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

+ Inheritance diagram for ClpConstraintQuadratic:
+ Collaboration diagram for ClpConstraintQuadratic:

Public Member Functions

virtual int gradient (const ClpSimplex *model, const double *solution, double *gradient, double &functionValue, double &offset, bool useScaling=false, bool refresh=true) const
 Fills gradient. More...
virtual void resize (int newNumberColumns)
 Resize constraint. More...
virtual void deleteSome (int numberToDelete, const int *which)
 Delete columns in constraint. More...
virtual void reallyScale (const double *columnScale)
 Scale constraint. More...
virtual int markNonlinear (char *which) const
 Given a zeroed array sets nonquadratic columns to 1. More...
virtual int markNonzero (char *which) const
 Given a zeroed array sets possible nonzero coefficients to 1. More...
Constructors and destructors
 ClpConstraintQuadratic ()
 Default Constructor. More...
 ClpConstraintQuadratic (int row, int numberQuadraticColumns, int numberColumns, const CoinBigIndex *start, const int *column, const double *element)
 Constructor from quadratic. More...
 ClpConstraintQuadratic (const ClpConstraintQuadratic &rhs)
 Copy constructor . More...
ClpConstraintQuadraticoperator= (const ClpConstraintQuadratic &rhs)
 Assignment operator. More...
virtual ~ClpConstraintQuadratic ()
 Destructor. More...
virtual ClpConstraintclone () const
 Clone. More...
Gets and sets
virtual int numberCoefficients () const
 Number of coefficients. More...
int numberColumns () const
 Number of columns in constraint. More...
CoinBigIndexstart () const
 Column starts. More...
const int * column () const
 Columns. More...
const double * coefficient () const
 Coefficients. More...
- Public Member Functions inherited from ClpConstraint
virtual double functionValue (const ClpSimplex *model, const double *solution, bool useScaling=false, bool refresh=true) const
 Constraint function value. More...
 ClpConstraint ()
 Default Constructor. More...
 ClpConstraint (const ClpConstraint &)
 Copy constructor. More...
ClpConstraintoperator= (const ClpConstraint &rhs)
 Assignment operator. More...
virtual ~ClpConstraint ()
 Destructor. More...
int type ()
 Returns type, 0 linear, 1 nonlinear. More...
int rowNumber () const
 Row number (-1 is objective) More...
double functionValue () const
 Stored constraint function value. More...
double offset () const
 Constraint offset. More...
virtual void newXValues ()
 Say we have new primal solution - so may need to recompute. More...

Private Attributes

Private member data

Column starts

int * column_
 Column (if -1 then linear coefficient) More...
double * coefficient_
 Coefficients. More...
int numberColumns_
 Useful to have number of columns about. More...
int numberCoefficients_
 Number of coefficients in gradient. More...
int numberQuadraticColumns_
 Number of quadratic columns. More...

Additional Inherited Members

- Protected Attributes inherited from ClpConstraint
double * lastGradient_
 Gradient at last evaluation. More...
double functionValue_
 Value of non-linear part of constraint. More...
double offset_
 Value of offset for constraint. More...
int type_
 Type of constraint - linear is 1. More...
int rowNumber_
 Row number (-1 is objective) More...

Detailed Description

Quadratic Constraint Class.

Definition at line 17 of file ClpConstraintQuadratic.hpp.

Constructor & Destructor Documentation

ClpConstraintQuadratic::ClpConstraintQuadratic ( )

Default Constructor.

ClpConstraintQuadratic::ClpConstraintQuadratic ( int  row,
int  numberQuadraticColumns,
int  numberColumns,
const CoinBigIndex start,
const int *  column,
const double *  element 

Constructor from quadratic.

ClpConstraintQuadratic::ClpConstraintQuadratic ( const ClpConstraintQuadratic rhs)

Copy constructor .

virtual ClpConstraintQuadratic::~ClpConstraintQuadratic ( )


Member Function Documentation

virtual int ClpConstraintQuadratic::gradient ( const ClpSimplex model,
const double *  solution,
double *  gradient,
double &  functionValue,
double &  offset,
bool  useScaling = false,
bool  refresh = true 
) const

Fills gradient.

If Quadratic then solution may be NULL, also returns true value of function and offset so we can use x not deltaX in constraint If refresh is false then uses last solution Uses model for scaling Returns non-zero if gradient udefined at current solution

Implements ClpConstraint.

virtual void ClpConstraintQuadratic::resize ( int  newNumberColumns)

Resize constraint.

Implements ClpConstraint.

virtual void ClpConstraintQuadratic::deleteSome ( int  numberToDelete,
const int *  which 

Delete columns in constraint.

Implements ClpConstraint.

virtual void ClpConstraintQuadratic::reallyScale ( const double *  columnScale)

Scale constraint.

Implements ClpConstraint.

virtual int ClpConstraintQuadratic::markNonlinear ( char *  which) const

Given a zeroed array sets nonquadratic columns to 1.

Returns number of nonquadratic columns

Implements ClpConstraint.

virtual int ClpConstraintQuadratic::markNonzero ( char *  which) const

Given a zeroed array sets possible nonzero coefficients to 1.

Returns number of nonzeros

Implements ClpConstraint.

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

Assignment operator.

virtual ClpConstraint* ClpConstraintQuadratic::clone ( ) const


Implements ClpConstraint.

virtual int ClpConstraintQuadratic::numberCoefficients ( ) const

Number of coefficients.

Implements ClpConstraint.

int ClpConstraintQuadratic::numberColumns ( ) const

Number of columns in constraint.

Definition at line 83 of file ClpConstraintQuadratic.hpp.

CoinBigIndex* ClpConstraintQuadratic::start ( ) const

Column starts.

Definition at line 87 of file ClpConstraintQuadratic.hpp.

const int* ClpConstraintQuadratic::column ( ) const


Definition at line 91 of file ClpConstraintQuadratic.hpp.

const double* ClpConstraintQuadratic::coefficient ( ) const


Definition at line 95 of file ClpConstraintQuadratic.hpp.

Member Data Documentation

CoinBigIndex* ClpConstraintQuadratic::start_

Definition at line 105 of file ClpConstraintQuadratic.hpp.

int* ClpConstraintQuadratic::column_

Column (if -1 then linear coefficient)

Definition at line 107 of file ClpConstraintQuadratic.hpp.

double* ClpConstraintQuadratic::coefficient_


Definition at line 109 of file ClpConstraintQuadratic.hpp.

int ClpConstraintQuadratic::numberColumns_

Useful to have number of columns about.

Definition at line 111 of file ClpConstraintQuadratic.hpp.

int ClpConstraintQuadratic::numberCoefficients_

Number of coefficients in gradient.

Definition at line 113 of file ClpConstraintQuadratic.hpp.

int ClpConstraintQuadratic::numberQuadraticColumns_

Number of quadratic columns.

Definition at line 115 of file ClpConstraintQuadratic.hpp.

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