constraint.py

ConstraintComp is now deprecated.

class openmdao.components.constraint.ConstraintComp(expr, out='out')[source]

Bases: openmdao.components.exec_comp.ExecComp

ConstraintComp is deprecated. Please see the basic tutorial for more information.

A Component that represents an equality or inequality constraint.

Args:

expr : str

Constraint expression containing an operator that is one of [‘<’, ‘>’, ‘<=’, ‘>=’, ‘=’].

out : str, optional

Name of the output variable containing the result of the constraint equation. Default is ‘out’.

Options:

fd_options[‘force_fd’] : bool(False)

Set to True to finite difference this system.

fd_options[‘form’] : str(‘forward’)

Finite difference mode. (forward, backward, central) You can also set to ‘complex_step’ to peform the complex step method if your components support it.

fd_options[‘step_size’] : float(1e-06)

Default finite difference stepsize

fd_options[‘step_type’] : str(‘absolute’)

Set to absolute, relative

fd_options[‘extra_check_partials_form’] : None or str

Finite difference mode: (“forward”, “backward”, “central”, “complex_step”) During check_partial_derivatives, you can optionally do a second finite difference with a different mode.

fd_options[‘linearize’] : bool(False)

Set to True if you want linearize to be called even though you are using FD.