Cbc  2.9.9
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ClpConstraintAmpl Class Reference

Ampl Constraint Class. More...

#include <ClpConstraintAmpl.hpp>

+ Inheritance diagram for ClpConstraintAmpl:
+ Collaboration diagram for ClpConstraintAmpl:

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 nonampl columns to 1. More...
virtual int markNonzero (char *which) const
 Given a zeroed array sets possible nonzero coefficients to 1. More...
virtual void newXValues ()
 Say we have new primal solution - so may need to recompute. More...
Constructors and destructors
 ClpConstraintAmpl ()
 Default Constructor. More...
 ClpConstraintAmpl (int row, void *amplInfo)
 Constructor from ampl. More...
 ClpConstraintAmpl (const ClpConstraintAmpl &rhs)
 Copy constructor . More...
ClpConstraintAmploperator= (const ClpConstraintAmpl &rhs)
 Assignment operator. More...
virtual ~ClpConstraintAmpl ()
 Destructor. More...
virtual ClpConstraintclone () const
 Clone. More...
Gets and sets
virtual int numberCoefficients () const
 Number of coefficients. 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...

Private Attributes

Private member data

Ampl info

int * column_
 Column. More...
double * coefficient_
 Coefficients. More...
int numberCoefficients_
 Number of coefficients in gradient. 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

Ampl Constraint Class.

Definition at line 17 of file ClpConstraintAmpl.hpp.

Constructor & Destructor Documentation

ClpConstraintAmpl::ClpConstraintAmpl ( )

Default Constructor.

ClpConstraintAmpl::ClpConstraintAmpl ( int  row,
void amplInfo 

Constructor from ampl.

ClpConstraintAmpl::ClpConstraintAmpl ( const ClpConstraintAmpl rhs)

Copy constructor .

virtual ClpConstraintAmpl::~ClpConstraintAmpl ( )


Member Function Documentation

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

Fills gradient.

If Ampl 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 ClpConstraintAmpl::resize ( int  newNumberColumns)

Resize constraint.

Implements ClpConstraint.

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

Delete columns in constraint.

Implements ClpConstraint.

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

Scale constraint.

Implements ClpConstraint.

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

Given a zeroed array sets nonampl columns to 1.

Returns number of nonampl columns

Implements ClpConstraint.

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

Given a zeroed array sets possible nonzero coefficients to 1.

Returns number of nonzeros

Implements ClpConstraint.

virtual void ClpConstraintAmpl::newXValues ( )

Say we have new primal solution - so may need to recompute.

Reimplemented from ClpConstraint.

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

Assignment operator.

virtual ClpConstraint* ClpConstraintAmpl::clone ( ) const


Implements ClpConstraint.

virtual int ClpConstraintAmpl::numberCoefficients ( ) const

Number of coefficients.

Implements ClpConstraint.

const int* ClpConstraintAmpl::column ( ) const


Definition at line 83 of file ClpConstraintAmpl.hpp.

const double* ClpConstraintAmpl::coefficient ( ) const


Definition at line 87 of file ClpConstraintAmpl.hpp.

Member Data Documentation

void* ClpConstraintAmpl::amplInfo_

Definition at line 97 of file ClpConstraintAmpl.hpp.

int* ClpConstraintAmpl::column_


Definition at line 99 of file ClpConstraintAmpl.hpp.

double* ClpConstraintAmpl::coefficient_


Definition at line 101 of file ClpConstraintAmpl.hpp.

int ClpConstraintAmpl::numberCoefficients_

Number of coefficients in gradient.

Definition at line 103 of file ClpConstraintAmpl.hpp.

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