DGtal::VectorField< TCalculus, duality > Class Template Reference

Aim: VectorField represents a discrete vector field in the dec package. Vector field values are attached to 0-cells with the same duality as the vector field. More...

#include <DGtal/dec/VectorField.h>

Public Types
typedef TCalculus	Calculus
typedef Calculus::Scalar	Scalar
typedef Calculus::SCell	SCell
typedef Calculus::Index	Index
typedef DGtal::PointVector< Calculus::dimensionAmbient, Scalar >	Vector
typedef Calculus::DenseMatrix	Coordinates
typedef Coordinates	Container

Public Member Functions
	VectorField (ConstAlias< Calculus > calculus)
	VectorField (ConstAlias< Calculus > calculus, const Container &container)
VectorField &	operator= (const VectorField &other)
SCell	getSCell (const Index &index) const
Index	length () const
Vector	getVector (const Index &index) const
void	setVector (const Index &index, const Vector &vector)
void	selfDisplay (std::ostream &out) const
std::string	className () const
KForm< Calculus, 0, duality >	coordAlongDirection (const Dimension &dir) const
KForm< Calculus, 0, duality >	intensity (const typename Vector::NormType norm_type=Vector::L_2) const
void	clear ()
VectorField< TCalculus, duality >	normalized (const Scalar &epsilon=0) const
bool	isValid () const

Data Fields
Coordinates	myCoordinates
const Calculus *	myCalculus

Protected Member Functions
	VectorField ()

Detailed Description

template<typename TCalculus, Duality duality>
class DGtal::VectorField< TCalculus, duality >

Aim: VectorField represents a discrete vector field in the dec package. Vector field values are attached to 0-cells with the same duality as the vector field.

Description of template class 'VectorField'

Template Parameters

TCalculus	should be DiscreteExteriorCalculus.
duality	is the duality of the vector field.

Definition at line 67 of file VectorField.h.

Member Typedef Documentation

Calculus

template<typename TCalculus , Duality duality>

typedef TCalculus DGtal::VectorField< TCalculus, duality >::Calculus

Definition at line 71 of file VectorField.h.

Container

template<typename TCalculus , Duality duality>

typedef Coordinates DGtal::VectorField< TCalculus, duality >::Container

Definition at line 79 of file VectorField.h.

Coordinates

template<typename TCalculus , Duality duality>

typedef Calculus::DenseMatrix DGtal::VectorField< TCalculus, duality >::Coordinates

Definition at line 78 of file VectorField.h.

Index

template<typename TCalculus , Duality duality>

typedef Calculus::Index DGtal::VectorField< TCalculus, duality >::Index

Definition at line 75 of file VectorField.h.

Scalar

template<typename TCalculus , Duality duality>

typedef Calculus::Scalar DGtal::VectorField< TCalculus, duality >::Scalar

Definition at line 73 of file VectorField.h.

SCell

template<typename TCalculus , Duality duality>

typedef Calculus::SCell DGtal::VectorField< TCalculus, duality >::SCell

Definition at line 74 of file VectorField.h.

Vector

template<typename TCalculus , Duality duality>

typedef DGtal::PointVector<Calculus::dimensionAmbient, Scalar> DGtal::VectorField< TCalculus, duality >::Vector

Definition at line 76 of file VectorField.h.

Constructor & Destructor Documentation

VectorField() [1/3]

template<typename TCalculus , Duality duality>

DGtal::VectorField< TCalculus, duality >::VectorField

(

ConstAlias< Calculus >

calculus

)

Constructor.

Parameters

calculus

the discrete exterior calculus to use.

VectorField() [2/3]

template<typename TCalculus , Duality duality>

DGtal::VectorField< TCalculus, duality >::VectorField	(	ConstAlias< Calculus >	calculus,
		const Container &	container
	)

Constructor.

Parameters

calculus	the discrete exterior calculus to use.
container	the container to copy.

VectorField() [3/3]

template<typename TCalculus , Duality duality>

DGtal::VectorField< TCalculus, duality >::VectorField ( )

protected

Constructor. Forbidden by default (protected to avoid g++ warnings).

Member Function Documentation

className()

template<typename TCalculus , Duality duality>

std::string DGtal::VectorField< TCalculus, duality >::className

(

)

const

Get class name string "VectorField".

clear()

template<typename TCalculus , Duality duality>

void DGtal::VectorField< TCalculus, duality >::clear

(

)

Clear current vector field.

coordAlongDirection()

template<typename TCalculus , Duality duality>

KForm<Calculus, 0, duality> DGtal::VectorField< TCalculus, duality >::coordAlongDirection

(

const Dimension &

dir

)

const

Create zero form by projecting the vector field along basis vector.

Parameters

dir	direction along wich the vector field is projected.

getSCell()

template<typename TCalculus , Duality duality>

SCell DGtal::VectorField< TCalculus, duality >::getSCell

(

const Index &

index

)

const

Get signed k-cell from index.

Parameters

index

the index.

Returns

associated Khalimsky cell.

getVector()

template<typename TCalculus , Duality duality>

Vector DGtal::VectorField< TCalculus, duality >::getVector

(

const Index &

index

)

const

Get vector from index.

Parameters

index

of the corresponding 0-cell.

intensity()

template<typename TCalculus , Duality duality>

KForm<Calculus, 0, duality> DGtal::VectorField< TCalculus, duality >::intensity

(

const typename Vector::NormType

norm_type = Vector::L_2

)

const

Create zero from with field intensity.

Parameters

norm_type

norm type.

isValid()

template<typename TCalculus , Duality duality>

bool DGtal::VectorField< TCalculus, duality >::isValid

(

)

const

Checks the validity/consistency of the object.

Returns

'true' if the object is valid, 'false' otherwise.

length()

template<typename TCalculus , Duality duality>

Index DGtal::VectorField< TCalculus, duality >::length

(

)

const

Get k-form length.

Returns

k-form length.

normalized()

template<typename TCalculus , Duality duality>

VectorField<TCalculus, duality> DGtal::VectorField< TCalculus, duality >::normalized

(

const Scalar &

epsilon = 0

)

const

Return the normalized vector field. Scale vector field to norm 1 at each point.

Parameters

epsilon

vectors with norm lower than epsilon are set to zero.

operator=()

template<typename TCalculus , Duality duality>

VectorField& DGtal::VectorField< TCalculus, duality >::operator=

(

const VectorField< TCalculus, duality > &

other

)

Assignment.

Parameters

other

the object to copy.

Returns

a reference on 'this'.

selfDisplay()

template<typename TCalculus , Duality duality>

void DGtal::VectorField< TCalculus, duality >::selfDisplay

(

std::ostream &

out

)

const

Writes/Displays the object on an output stream.

Parameters

out	the output stream where the object is written.

setVector()

template<typename TCalculus , Duality duality>

void DGtal::VectorField< TCalculus, duality >::setVector	(	const Index &	index,
		const Vector &	vector
	)

Set vector at index.

Parameters

index	of the corresponding 0-cell.
vector	value of the vector field to set at this index.

Field Documentation

myCalculus

template<typename TCalculus , Duality duality>

const Calculus* DGtal::VectorField< TCalculus, duality >::myCalculus

Pointer to const calculus.

Definition at line 138 of file VectorField.h.

myCoordinates

template<typename TCalculus , Duality duality>

Coordinates DGtal::VectorField< TCalculus, duality >::myCoordinates

Container used to actually hold the kform data.

Definition at line 133 of file VectorField.h.

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

• VectorField.h