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Public Member Functions
	surfaceOptimizer (DynList< point > &pts, const DynList< triFace > &trias)
	Construct from transformed points and triangles forming a simplex. More...

	~surfaceOptimizer ()

point	optimizePoint (const scalar tol=0.1)
	optimizes position of a central point in the simplex More...

Private Member Functions
scalar	evaluateStabilisationFactor () const
	evaluate stabilisation factor More...

scalar	evaluateFunc (const scalar &K) const
	evaluate the functional More...

void	evaluateGradients (const scalar &, vector &, tensor &) const
	evaluate gradients needed for optimisation More...

scalar	optimiseDivideAndConquer (const scalar tol)
	optimise point position using the divide and conquer technique More...

scalar	optimiseSteepestDescent (const scalar tol)
	optimise point position via the steepest descent method More...

	surfaceOptimizer (const surfaceOptimizer &)
	Disallow default bitwise copy construct. More...

void	operator= (const surfaceOptimizer &)
	Disallow default bitwise assignment. More...

Private Attributes
DynList< point > &	pts_
	reference to the simplex points More...

const DynList< triFace > &	trias_
	reference to the triangles forming a simplex More...

point	pMin_
	min position of the bnd box More...

point	pMax_
	max position of the bnd box More...

Static Private Attributes
static const vector	dirVecs [4]
	direction vectors for divide and conquer algorithm More...

Detailed Description

Definition at line 50 of file surfaceOptimizer.H.

Constructor & Destructor Documentation

◆ surfaceOptimizer() [1/2]

surfaceOptimizer ( const surfaceOptimizer & )

private

Disallow default bitwise copy construct.

◆ surfaceOptimizer() [2/2]

surfaceOptimizer	(	DynList< point > &	pts,
		const DynList< triFace > &	trias
	)

Construct from transformed points and triangles forming a simplex.

Definition at line 352 of file surfaceOptimizer.C.

References forAll, Foam::max(), Foam::min(), and tf.

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◆ ~surfaceOptimizer()

~surfaceOptimizer ( )

Definition at line 377 of file surfaceOptimizer.C.

Member Function Documentation

◆ evaluateStabilisationFactor()

scalar evaluateStabilisationFactor ( ) const

private

evaluate stabilisation factor

find the minimum area

K is greater than zero in case the stabilisation is needed

Definition at line 51 of file surfaceOptimizer.C.

References Foam::endl(), forAll, Foam::Info, Foam::magSqr(), Foam::max(), Foam::min(), surfaceOptimizer::pts_, surfaceOptimizer::trias_, Vector< Cmpt >::x(), and Vector< Cmpt >::y().

Referenced by surfaceOptimizer::optimiseDivideAndConquer(), and surfaceOptimizer::optimiseSteepestDescent().

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◆ evaluateFunc()

scalar evaluateFunc ( const scalar & K ) const

private

evaluate the functional

Definition at line 97 of file surfaceOptimizer.C.

References Foam::endl(), forAll, Foam::func(), Foam::Info, Foam::magSqr(), Foam::max(), surfaceOptimizer::pts_, Foam::sqr(), Foam::sqrt(), surfaceOptimizer::trias_, Vector< Cmpt >::x(), and Vector< Cmpt >::y().

Referenced by surfaceOptimizer::optimiseDivideAndConquer(), and surfaceOptimizer::optimiseSteepestDescent().

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◆ evaluateGradients()

void evaluateGradients	(	const scalar &	K,
		vector &	gradF,
		tensor &	gradGradF
	)		const

private

evaluate gradients needed for optimisation

calculate the gradient

calculate the second gradient

stabilise diagonal terms

Definition at line 135 of file surfaceOptimizer.C.

References forAll, Foam::mag(), Foam::magSqr(), Foam::max(), Foam::pow(), Foam::sqr(), Foam::sqrt(), Foam::twoSymm(), Vector< Cmpt >::x(), Tensor::xx(), Vector< Cmpt >::y(), Tensor::yy(), Tensor::zero, and Vector< scalar >::zero.

Referenced by surfaceOptimizer::optimiseSteepestDescent().

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◆ optimiseDivideAndConquer()

scalar optimiseDivideAndConquer ( const scalar tol )

private

optimise point position using the divide and conquer technique

find the value of the functional in the centre of the bnd box

set the centre with the minimum value as the centre for future search

halve the search range

calculate the tolerence

Definition at line 208 of file surfaceOptimizer.C.

References surfaceOptimizer::dirVecs, Foam::endl(), surfaceOptimizer::evaluateFunc(), surfaceOptimizer::evaluateStabilisationFactor(), Foam::func(), Foam::Info, Foam::mag(), surfaceOptimizer::pMax_, surfaceOptimizer::pMin_, surfaceOptimizer::pts_, surfaceOptimizer::trias_, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< scalar >::zero.

Referenced by surfaceOptimizer::optimizePoint().

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◆ optimiseSteepestDescent()

scalar optimiseSteepestDescent ( const scalar tol )

private

optimise point position via the steepest descent method

find the bounding box

find the minimum value on the 5 x 5 raster

start with steepest descent optimisation

store data into a matrix

calculate the determinant

Definition at line 271 of file surfaceOptimizer.C.

References Foam::det(), matrix2D::determinant(), Foam::endl(), surfaceOptimizer::evaluateFunc(), surfaceOptimizer::evaluateGradients(), surfaceOptimizer::evaluateStabilisationFactor(), Foam::Info, Foam::mag(), surfaceOptimizer::pMax_, surfaceOptimizer::pMin_, surfaceOptimizer::pts_, matrix2D::solveFirst(), matrix2D::solveSecond(), surfaceOptimizer::trias_, Vector< Cmpt >::x(), Tensor::xx(), Tensor::xy(), Vector< Cmpt >::y(), Tensor::yx(), Tensor::yy(), Vector< Cmpt >::z(), and Vector< scalar >::zero.

Referenced by surfaceOptimizer::optimizePoint().

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◆ operator=()

void operator= ( const surfaceOptimizer & )

private

Disallow default bitwise assignment.

◆ optimizePoint()

point optimizePoint ( const scalar tol = 0.1 )

optimizes position of a central point in the simplex

Definition at line 382 of file surfaceOptimizer.C.

References forAll, Foam::mag(), surfaceOptimizer::optimiseDivideAndConquer(), surfaceOptimizer::optimiseSteepestDescent(), surfaceOptimizer::pMax_, surfaceOptimizer::pMin_, surfaceOptimizer::pts_, and surfaceOptimizer::trias_.

Referenced by meshSurfaceOptimizer::newPositionSurfaceOptimizer(), and meshSurfaceOptimizer::nodeDisplacementSurfaceOptimizer().

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Field Documentation

◆ dirVecs

const vector dirVecs

staticprivate

Initial value:

=
    {
        vector(-1.0, -1.0, 0.0),
        vector(1.0, -1.0, 0.0),
        vector(-1.0, 1.0, 0.0),
        vector(1.0, 1.0, 0.0)
    }

direction vectors for divide and conquer algorithm

Definition at line 54 of file surfaceOptimizer.H.

Referenced by surfaceOptimizer::optimiseDivideAndConquer().

◆ pts_

DynList<point>& pts_

private

reference to the simplex points

Definition at line 58 of file surfaceOptimizer.H.

Referenced by surfaceOptimizer::evaluateFunc(), surfaceOptimizer::evaluateStabilisationFactor(), surfaceOptimizer::optimiseDivideAndConquer(), surfaceOptimizer::optimiseSteepestDescent(), and surfaceOptimizer::optimizePoint().

◆ trias_

const DynList<triFace>& trias_

private

reference to the triangles forming a simplex

Definition at line 61 of file surfaceOptimizer.H.

Referenced by surfaceOptimizer::evaluateFunc(), surfaceOptimizer::evaluateStabilisationFactor(), surfaceOptimizer::optimiseDivideAndConquer(), surfaceOptimizer::optimiseSteepestDescent(), and surfaceOptimizer::optimizePoint().

◆ pMin_

point pMin_

private

min position of the bnd box

Definition at line 64 of file surfaceOptimizer.H.

Referenced by surfaceOptimizer::optimiseDivideAndConquer(), surfaceOptimizer::optimiseSteepestDescent(), and surfaceOptimizer::optimizePoint().

◆ pMax_

point pMax_

private

max position of the bnd box

Definition at line 67 of file surfaceOptimizer.H.

Referenced by surfaceOptimizer::optimiseDivideAndConquer(), surfaceOptimizer::optimiseSteepestDescent(), and surfaceOptimizer::optimizePoint().

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

applications/extra/cfMesh-v1.1.2/meshLibrary/utilities/smoothers/geometry/meshSurfaceOptimizer/advancedSurfaceSmoothers/surfaceOptimizer/surfaceOptimizer.H
applications/extra/cfMesh-v1.1.2/meshLibrary/utilities/smoothers/geometry/meshSurfaceOptimizer/advancedSurfaceSmoothers/surfaceOptimizer/surfaceOptimizer.C

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ surfaceOptimizer() [1/2]

◆ surfaceOptimizer() [2/2]

◆ ~surfaceOptimizer()

Member Function Documentation

◆ evaluateStabilisationFactor()

◆ evaluateFunc()

◆ evaluateGradients()

◆ optimiseDivideAndConquer()

◆ optimiseSteepestDescent()

◆ operator=()

◆ optimizePoint()

Field Documentation

◆ dirVecs

◆ pts_

◆ trias_

◆ pMin_

◆ pMax_