jijzepttools.modeling.replace.constraint

jijzepttools.modeling.replace.constraint#

Functions#

replace_constraint(→ jijmodeling.Constraint)

replace constraint with replacer.

replace_lhs_and_rhs_of_constraint(→ jijmodeling.Constraint)

replace lhs and rhs of constraint using replacer

move_decision_variable_to_left(→ jijmodeling.Constraint)

move decision variable to left

set_constraint_expr_less_than_equal(...)

set constraint expression to less than equal

Module Contents#

replace_constraint(constraint: jijmodeling.Constraint, replacer: Callable[[jijzepttools.modeling.utils.type.Expr], jijzepttools.modeling.utils.type.Expr], constraint_name: str | None = None, overwrite_cond: Literal['>=', '<=', '=='] | None = None) → jijmodeling.Constraint#

replace constraint with replacer.

Parameters:

  • constraint (jm.Constraint) – constraint to be replaced

  • replacer (tp.Callable[[Expr], Expr]) – replacer

  • constraint_name (tp.Optional[str], optional) – new constraint name. Defaults to None.

  • overwrite_cond (tp.Optional[str], optional) – new condition operator. Defaults to None.

replace_lhs_and_rhs_of_constraint(constraint: jijmodeling.Constraint, new_lhs: jijzepttools.modeling.utils.type.Expr, new_rhs: jijzepttools.modeling.utils.type.Expr, constraint_name: str | None = None, overwrite_cond: Literal['>=', '<=', '=='] | None = None) → jijmodeling.Constraint#

replace lhs and rhs of constraint using replacer

Parameters:

  • constraint (jm.Constraint) – constraint to be replaced

  • new_lhs (Expr) – new lhs

  • new_rhs (Expr) – new rhs

  • constraint_name (tp.Optional[str], optional) – new constraint name. Defaults to None.

move_decision_variable_to_left(constraint: jijmodeling.Constraint, constraint_name: str | None = None) → jijmodeling.Constraint#

move decision variable to left

Parameters:

  • constraint (jm.Constraint) – constraint to be moved

  • constraint_name (tp.Optional[str], optional) – new constraint name. Defaults to None.

Returns:

moved constraint

Return type:

jm.Constraint

set_constraint_expr_less_than_equal(constraint: jijmodeling.Constraint, constraint_name: str | None = None) → jijmodeling.Constraint#

set constraint expression to less than equal If the constraint is a >= b, then the constraint is replaced with -a <= -b. Othewise, the constraint is kept intact.

Parameters:

  • constraint (jm.Constraint) – constraint to be set

  • constraint_name (tp.Optional[str], optional) – new constraint name. Defaults to None.

Returns:

set constraint

Return type:

jm.Constraint