MBMesquite::AWShape2DB1 Class Reference

#include <AWShape2DB1.hpp>

Inheritance diagram for MBMesquite::AWShape2DB1:

Collaboration diagram for MBMesquite::AWShape2DB1:

Public Member Functions
virtual MESQUITE_EXPORT	~AWShape2DB1 ()
virtual MESQUITE_EXPORT std::string	get_name () const
virtual MESQUITE_EXPORT bool	evaluate (const MsqMatrix< 2, 2 > &A, const MsqMatrix< 2, 2 > &W, double &result, MsqError &err)
	Evaluate \(\mu(A,W)\).

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Detailed Description

\( \frac{1}{4 \alpha \omega}|A(adj\,W)-[W(adj\,A)]^t|^2 \)

Definition at line 42 of file AWShape2DB1.hpp.

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Constructor & Destructor Documentation

MBMesquite::AWShape2DB1::~AWShape2DB1

(

)

[virtual]

Definition at line 46 of file AWShape2DB1.cpp.

{}

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Member Function Documentation

bool MBMesquite::AWShape2DB1::evaluate	(	const MsqMatrix< 2, 2 > &	A,
		const MsqMatrix< 2, 2 > &	W,
		double &	result,
		MsqError &	err
	)		[virtual]

Evaluate \(\mu(A,W)\).

Parameters:

A	2x2 active matrix
W	2x2 target matrix
result	Output: value of function

Returns:

false if function cannot be evaluated for given A and W (e.g. division by zero, etc.), true otherwise.

Reimplemented from MBMesquite::AWMetric.

Definition at line 48 of file AWShape2DB1.cpp.

References MBMesquite::adj(), MBMesquite::MsqError::BARRIER_VIOLATED, MBMesquite::barrier_violated_msg_aw, MBMesquite::det(), MBMesquite::AWMetric::invalid_determinant(), MSQ_SETERR, and MBMesquite::sqr_Frobenius().

{
    const double alpha = det( A );
    const double omega = det( W );
    const double prod  = alpha * omega;
    if( AWMetric::invalid_determinant( prod ) )
    {
        MSQ_SETERR( err )( barrier_violated_msg_aw, MsqError::BARRIER_VIOLATED );
        return false;
    }

    result = sqr_Frobenius( A * adj( W ) );
    result += sqr_Frobenius( W * adj( A ) );
    result *= 0.25 / prod;
    result -= 1.0;
    return true;
}

std::string MBMesquite::AWShape2DB1::get_name

(

)

const [virtual]

Reimplemented from MBMesquite::AWMetricBarrier.

Definition at line 41 of file AWShape2DB1.cpp.

{
    return "AWShape2DB1";
}

List of all members.

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

• AWShape2DB1.hpp
• AWShape2DB1.cpp