MixedIntegerProgramLinearObjective< FT > Concept Reference

Definition

MixedIntegerProgramLinearObjective is a concept of the linear objective function in a Mixed Integer Programming (MIP) problem.

Has Models:

CGAL::Linear_objective<FT>

Types
enum	Sense { MINIMIZE, MAXIMIZE, UNDEFINED }
	The objective sense (i.e., optimization direction). More...

Creation
	MixedIntegerProgramLinearObjective (MixedIntegerProgramTraits *solver, Sense sense)
	Constructs a linear objective, initialized with the solver it belongs to and the objective sense.

Operations
void	set_sense (Sense sense)
	Sets the objective sense.
Sense	sense () const
	Gets the objective sense.
void	set_coefficients (const std::unordered_map< const MixedIntegerProgramVariable *, FT > &coeffs)
	Sets the coefficients of the constraint.
void	add_coefficient (const MixedIntegerProgramVariable *var, FT coeff)
	Adds a coefficient to a variable of the constraint.
const std::unordered_map< const MixedIntegerProgramVariable *, FT > &	coefficients () const
	Returns the coefficients of the constraint.
FT	get_coefficient (const MixedIntegerProgramVariable *var) const
	Gets the coefficient of the variable in this constraint.
void	set_offset (FT value)
	Sets the constant term.
FT	offset () const
	Gets the constant term.
void	clear ()
	Clears the objective (i.e., removes all variables, resets the objective sense to UNDEFINED). More...

Member Enumeration Documentation

Sense

template<typename FT >

enum MixedIntegerProgramLinearObjective::Sense

The objective sense (i.e., optimization direction).

Enumerator
MINIMIZE
MAXIMIZE
UNDEFINED

Member Function Documentation

clear()

template<typename FT >

void MixedIntegerProgramLinearObjective< FT >::clear

(

)

Clears the objective (i.e., removes all variables, resets the objective sense to UNDEFINED).

Useful to reuse the object to define a new linear objective.