ParabolicVertexMetric Class Reference

Fake quality metric for testing numerial gradient. More...

Inheritance diagram for ParabolicVertexMetric:

Collaboration diagram for ParabolicVertexMetric:

Public Member Functions
std::string	get_name () const
int	get_negate_flag () const
	1 if metric should be minimized, -1 if metric should be maximized.
bool	evaluate (PatchData &pd, size_t vtx_idx, double &value, MsqError &)
	Get metric value at a logical location in the patch.
bool	evaluate_with_indices (PatchData &pd, size_t vtx_idx, double &value, std::vector< size_t > &indices, MsqError &)
	Get metric value at a logical location in the patch.

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Detailed Description

Fake quality metric for testing numerial gradient.

Implement a vertex metric for which the "quality" at a given vertex is the square of the value of the y-coordinate of that vertex. Thus the Hessian of the "quality" at every vertex should be {2,0,0}.

Definition at line 196 of file QualityMetricTest.cpp.

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Member Function Documentation

bool ParabolicVertexMetric::evaluate	(	PatchData &	pd,
		size_t	handle,
		double &	value,
		MsqError &	err
	)		[inline, virtual]

Get metric value at a logical location in the patch.

Evaluate the metric at one location in the PatchData.

Parameters:

pd	The patch.
handle	The location in the patch (as passed back from get_evaluations).
value	The output metric value.

Implements MBMesquite::QualityMetric.

Definition at line 207 of file QualityMetricTest.cpp.

References value(), and MBMesquite::PatchData::vertex_by_index().

    {
        value = pd.vertex_by_index( vtx_idx )[1];
        value *= value;
        return true;
    }

bool ParabolicVertexMetric::evaluate_with_indices	(	PatchData &	pd,
		size_t	handle,
		double &	value,
		std::vector< size_t > &	indices,
		MsqError &	err
	)		[inline, virtual]

Get metric value at a logical location in the patch.

Evaluate the metric at one location in the PatchData.

Parameters:

pd	The patch.
handle	The location in the patch (as passed back from get_evaluations).
value	The output metric value.
indices	The free vertices that the evaluation is a function of, specified as vertex indices in the PatchData.

Implements MBMesquite::QualityMetric.

Definition at line 213 of file QualityMetricTest.cpp.

References value(), and MBMesquite::PatchData::vertex_by_index().

    {
        value = pd.vertex_by_index( vtx_idx )[1];
        value *= value;
        indices.resize( 1 );
        indices[0] = vtx_idx;
        return true;
    }

std::string ParabolicVertexMetric::get_name

(

)

const [inline, virtual]

Implements MBMesquite::QualityMetric.

Definition at line 199 of file QualityMetricTest.cpp.

    {
        return "Fake metric for testing numerical gradient";
    }

int ParabolicVertexMetric::get_negate_flag

(

)

const [inline, virtual]

1 if metric should be minimized, -1 if metric should be maximized.

Implements MBMesquite::QualityMetric.

Definition at line 203 of file QualityMetricTest.cpp.

    {
        return 1;
    }

List of all members.

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

• QualityMetricTest.cpp