ClpConstraintQuadratic Class Reference

Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

Inheritance diagram for ClpConstraintQuadratic:

Collaboration diagram for ClpConstraintQuadratic:

Public Member Functions
Stuff
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...
ClpConstraintQuadratic &	operator= (const ClpConstraintQuadratic &rhs)
	Assignment operator. More...
virtual	~ClpConstraintQuadratic ()
	Destructor. More...
virtual ClpConstraint *	clone () const
	Clone. More...
Gets and sets
virtual int	numberCoefficients () const
	Number of coefficients. More...
int	numberColumns () const
	Number of columns in constraint. More...
CoinBigIndex *	start () 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...
ClpConstraint &	operator= (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...

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() [1/3]

ClpConstraintQuadratic::ClpConstraintQuadratic

(

)

Default Constructor.

ClpConstraintQuadratic() [2/3]

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

Constructor from quadratic.

ClpConstraintQuadratic() [3/3]

ClpConstraintQuadratic::ClpConstraintQuadratic

(

const ClpConstraintQuadratic &

rhs

)

Copy constructor .

~ClpConstraintQuadratic()

virtual ClpConstraintQuadratic::~ClpConstraintQuadratic ( )

virtual

Destructor.

Member Function Documentation

gradient()

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

virtual

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.

resize()

virtual void ClpConstraintQuadratic::resize ( int  newNumberColumns )

virtual

Resize constraint.

Implements ClpConstraint.

deleteSome()

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

virtual

Delete columns in constraint.

Implements ClpConstraint.

reallyScale()

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

virtual

Scale constraint.

Implements ClpConstraint.

markNonlinear()

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

virtual

Given a zeroed array sets nonquadratic columns to 1.

Returns number of nonquadratic columns

Implements ClpConstraint.

markNonzero()

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

virtual

Given a zeroed array sets possible nonzero coefficients to 1.

Returns number of nonzeros

Implements ClpConstraint.

operator=()

ClpConstraintQuadratic& ClpConstraintQuadratic::operator=

(

const ClpConstraintQuadratic &

rhs

)

Assignment operator.

clone()

virtual ClpConstraint* ClpConstraintQuadratic::clone ( ) const

virtual

Clone.

Implements ClpConstraint.

numberCoefficients()

virtual int ClpConstraintQuadratic::numberCoefficients ( ) const

virtual

Number of coefficients.

Implements ClpConstraint.

numberColumns()

int ClpConstraintQuadratic::numberColumns ( ) const

inline

Number of columns in constraint.

Definition at line 83 of file ClpConstraintQuadratic.hpp.

start()

CoinBigIndex* ClpConstraintQuadratic::start ( ) const

inline

Column starts.

Definition at line 87 of file ClpConstraintQuadratic.hpp.

column()

const int* ClpConstraintQuadratic::column ( ) const

inline

Columns.

Definition at line 91 of file ClpConstraintQuadratic.hpp.

coefficient()

const double* ClpConstraintQuadratic::coefficient ( ) const

inline

Coefficients.

Definition at line 95 of file ClpConstraintQuadratic.hpp.

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

• src/ClpConstraintQuadratic.hpp