knuppMetric Class Reference

class for mesh untangler More...

Inheritance diagram for knuppMetric:

Collaboration diagram for knuppMetric:

Public Member Functions
	knuppMetric (partTetMeshSimplex &simplex)
	~knuppMetric ()
void	optimizeNodePosition (const scalar tol=0.001)
Public Member Functions inherited from simplexSmoother
	simplexSmoother (partTetMeshSimplex &simplex)
	construct from partTetMeshSimplex More...
virtual	~simplexSmoother ()

Private Member Functions
scalar	evaluateMetric () const
	evaluate the value of the metric More...
scalar	evaluateMetricNoBeta () const
void	evaluateGradients (vector &grad, tensor &gradGrad) const
	evaluate metric gradients More...

Private Attributes
point &	p_
	free vertex More...
DynList< vector, 64 >	normals_
	normals of triangles forming the outer hull More...
DynList< point, 64 >	centres_
	centres of triangles forming the outer hull More...
scalar	beta_
	control parameter. It helps the point get inside the feasible region More...

Additional Inherited Members
Protected Attributes inherited from simplexSmoother
DynList< point, 128 > &	points_
	mesh points More...
const DynList< partTet, 128 > &	tets_
	list tets around the given vertex More...
const label	pointI_
	label of the point More...
boundBox	bb_
	bound box More...

Detailed Description

class for mesh untangler

Definition at line 53 of file knuppMetric.H.

Constructor & Destructor Documentation

knuppMetric()

knuppMetric

(

partTetMeshSimplex &

simplex

)

Definition at line 85 of file knuppMetric.C.

References partTet::a(), partTet::b(), simplexSmoother::bb_, knuppMetric::beta_, partTet::c(), triangle::centre(), knuppMetric::centres_, forAll, boundBox::mag(), Foam::mag(), n, triangle::normal(), knuppMetric::normals_, simplexSmoother::points_, and simplexSmoother::tets_.

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~knuppMetric()

~knuppMetric

(

)

Definition at line 117 of file knuppMetric.C.

Member Function Documentation

evaluateMetric()

scalar evaluateMetric ( ) const

private

evaluate the value of the metric

Definition at line 42 of file knuppMetric.C.

References knuppMetric::beta_, knuppMetric::centres_, forAll, Foam::mag(), knuppMetric::normals_, knuppMetric::p_, and Foam::sqr().

Referenced by knuppMetric::optimizeNodePosition().

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evaluateMetricNoBeta()

scalar evaluateMetricNoBeta ( ) const

private

Definition at line 55 of file knuppMetric.C.

References knuppMetric::centres_, forAll, Foam::mag(), knuppMetric::normals_, knuppMetric::p_, and Foam::sqr().

Referenced by knuppMetric::optimizeNodePosition().

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evaluateGradients()

void evaluateGradients ( vector &  grad, tensor &  gradGrad  ) const

private

evaluate metric gradients

Definition at line 68 of file knuppMetric.C.

References knuppMetric::beta_, knuppMetric::centres_, forAll, Foam::fvc::grad(), Foam::mag(), knuppMetric::normals_, knuppMetric::p_, Foam::sign(), Vector< scalar >::zero, and Tensor::zero.

Referenced by knuppMetric::optimizeNodePosition().

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optimizeNodePosition()

void optimizeNodePosition ( const scalar  tol = 0.001 )

virtual

find the best position such that all tets making a simplex have a positive volume

store previous value

evaluate gradients

calculate displacement

it seems that this direction is wrong

Implements simplexSmoother.

Definition at line 124 of file knuppMetric.C.

References simplexSmoother::bb_, knuppMetric::beta_, knuppMetric::centres_, boundBox::contains(), Foam::det(), Foam::endl(), knuppMetric::evaluateGradients(), knuppMetric::evaluateMetric(), knuppMetric::evaluateMetricNoBeta(), forAll, Foam::func(), Foam::Info, Foam::inv(), Foam::mag(), Foam::magSqr(), boundBox::max(), boundBox::min(), VectorSpace< Vector< scalar >, scalar, 3 >::nComponents, knuppMetric::normals_, knuppMetric::p_, relax(), Foam::sqr(), and Vector< scalar >::zero.

Referenced by tetMeshOptimisation::optimiseUsingKnuppMetric().

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Field Documentation

p_

point& p_

private

free vertex

Definition at line 59 of file knuppMetric.H.

Referenced by knuppMetric::evaluateGradients(), knuppMetric::evaluateMetric(), knuppMetric::evaluateMetricNoBeta(), and knuppMetric::optimizeNodePosition().

normals_

DynList<vector, 64> normals_

private

normals of triangles forming the outer hull

Definition at line 62 of file knuppMetric.H.

Referenced by knuppMetric::evaluateGradients(), knuppMetric::evaluateMetric(), knuppMetric::evaluateMetricNoBeta(), knuppMetric::knuppMetric(), and knuppMetric::optimizeNodePosition().

centres_

DynList<point, 64> centres_

private

centres of triangles forming the outer hull

Definition at line 65 of file knuppMetric.H.

Referenced by knuppMetric::evaluateGradients(), knuppMetric::evaluateMetric(), knuppMetric::evaluateMetricNoBeta(), knuppMetric::knuppMetric(), and knuppMetric::optimizeNodePosition().

beta_

scalar beta_

private

control parameter. It helps the point get inside the feasible region

Definition at line 68 of file knuppMetric.H.

Referenced by knuppMetric::evaluateGradients(), knuppMetric::evaluateMetric(), knuppMetric::knuppMetric(), and knuppMetric::optimizeNodePosition().

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

• applications/extra/cfMesh-v1.1.2/meshLibrary/utilities/smoothers/geometry/meshOptimizer/tetMeshOptimisation/advancedSmoothers/knuppMetric/knuppMetric.H
• applications/extra/cfMesh-v1.1.2/meshLibrary/utilities/smoothers/geometry/meshOptimizer/tetMeshOptimisation/advancedSmoothers/knuppMetric/knuppMetric.C