polyfem::solver::ScalarVelocityParametrization Class Reference

#include <Parametrizations.hpp>

Inheritance diagram for polyfem::solver::ScalarVelocityParametrization:

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Public Member Functions
	ScalarVelocityParametrization (const double start_val, const double dt)
int	size (const int x_size) const override
	Compute DOF of y given DOF of x.
Eigen::VectorXd	inverse_eval (const Eigen::VectorXd &y) override
	Eval x = f^-1 (y).
Eigen::VectorXd	eval (const Eigen::VectorXd &x) const override
	Eval y = f(x).
Eigen::VectorXd	apply_jacobian (const Eigen::VectorXd &grad, const Eigen::VectorXd &x) const override
	Apply jacobian for chain rule.
Public Member Functions inherited from polyfem::solver::Parametrization
virtual	~Parametrization ()=default

Private Attributes
const double	start_val_
const double	dt_

Detailed Description

Definition at line 162 of file Parametrizations.hpp.

Constructor & Destructor Documentation

ScalarVelocityParametrization()

polyfem::solver::ScalarVelocityParametrization::ScalarVelocityParametrization ( const double  start_val, const double  dt  )

inline

Definition at line 165 of file Parametrizations.hpp.

Member Function Documentation

apply_jacobian()

Eigen::VectorXd polyfem::solver::ScalarVelocityParametrization::apply_jacobian ( const Eigen::VectorXd &  grad_full, const Eigen::VectorXd &  x  ) const

overridevirtual

Apply jacobian for chain rule.

Let g(y) = g(f(x)). Given ∂g/∂y, compute ∂g/∂x = ∂g/∂y * ∂y/∂x.

Parameters

[in]	grad_full	∂g/∂y.
[in]	x	Where ∂g/∂x is evaluated.

Returns

∂g/∂x.

Implements polyfem::solver::Parametrization.

Definition at line 478 of file Parametrizations.cpp.

References dt_, size(), and x.

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eval()

Eigen::VectorXd polyfem::solver::ScalarVelocityParametrization::eval ( const Eigen::VectorXd &  x ) const

overridevirtual

Eval y = f(x).

Parameters

[in]

x

x.

Returns

y.

Implements polyfem::solver::Parametrization.

Definition at line 468 of file Parametrizations.cpp.

References dt_, size(), start_val_, x, and y.

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inverse_eval()

Eigen::VectorXd polyfem::solver::ScalarVelocityParametrization::inverse_eval ( const Eigen::VectorXd &  y )

overridevirtual

Eval x = f^-1 (y).

This is not a strict inverse in mathematical sense, one may choose "reasonable" x even if f is not one-to-one.

Parameters

[in]

y

y.

Returns

x.

Exceptions

std::runtime_error

Throw if not implemented.

Reimplemented from polyfem::solver::Parametrization.

Definition at line 458 of file Parametrizations.cpp.

References dt_, size(), start_val_, x, and y.

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size()

int polyfem::solver::ScalarVelocityParametrization::size ( const int  x_size ) const

inlineoverridevirtual

Compute DOF of y given DOF of x.

Parameters

[in]

x_size

The DOF of x.

Returns

DOF of y.

Implements polyfem::solver::Parametrization.

Definition at line 167 of file Parametrizations.hpp.

Referenced by apply_jacobian(), eval(), and inverse_eval().

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Member Data Documentation

dt_

const double polyfem::solver::ScalarVelocityParametrization::dt_

private

Definition at line 174 of file Parametrizations.hpp.

Referenced by apply_jacobian(), eval(), and inverse_eval().

start_val_

const double polyfem::solver::ScalarVelocityParametrization::start_val_

private

Definition at line 173 of file Parametrizations.hpp.

Referenced by eval(), and inverse_eval().

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

• src/polyfem/optimization/parametrization/Parametrizations.hpp
• src/polyfem/optimization/parametrization/Parametrizations.cpp