TightenConstraintFromVars

(class from pyomo.contrib.preprocessing.plugins.constraint_tightener)

class pyomo.contrib.preprocessing.plugins.constraint_tightener.TightenConstraintFromVars[source]

Bases: IsomorphicTransformation

DEPRECATED.

Tightens upper and lower bound on constraints based on variable bounds.

Iterates through each variable and tightens the constraint bounds using the inferred values from the variable bounds.

For now, this only operates on linear constraints.

Deprecated since version 5.7: Use of the constraint tightener transformation is deprecated. Its functionality may be partially replicated using pyomo.contrib.fbbt.compute_bounds_on_expr(constraint.body).

__init__()[source]: DEPRECATED.

Deprecated since version 5.7: Use of the constraint tightener transformation is deprecated. Its functionality may be partially replicated using pyomo.contrib.fbbt.compute_bounds_on_expr(constraint.body).

Methods

`__init__`()	DEPRECATED.
`apply`(model, **kwds)	DEPRECATED.
`apply_to`(model, **kwds)	Apply the transformation to the given model.
`create_using`(model, **kwds)	Create a new model with this transformation

Member Documentation

apply(model, **kwds): DEPRECATED.

Deprecated since version 4.3.11323: Transformation.apply() has been deprecated. Please use either Transformation.apply_to() for in-place transformations or Transformation.create_using() for transformations that create a new, independent transformed model instance.

apply_to(model, **kwds): Apply the transformation to the given model.

create_using(model, **kwds): Create a new model with this transformation