Scaling< _Scalar, _Dim > Class Template Reference [Geometry module]

Represents a possibly non uniform scaling transformation. More...

List of all members.

Public Types
enum	{ Dim }
typedef Matrix< Scalar, Dim, Dim >	LinearMatrixType
typedef _Scalar	Scalar
typedef Transform< Scalar, Dim >	TransformType
typedef Translation< Scalar, Dim >	TranslationType
typedef Matrix< Scalar, Dim, 1 >	VectorType
Public Member Functions
template<typename NewScalarType >
ei_cast_return_type< Scaling, Scaling< NewScalarType, Dim > >::type	cast () const
const VectorType &	coeffs () const
VectorType &	coeffs ()
Scaling	inverse () const
bool	isApprox (const Scaling &other, typename NumTraits< Scalar >::Real prec=precision< Scalar >()) const
TransformType	operator* (const TranslationType &t) const
Scaling	operator* (const Scaling &other) const
TransformType	operator* (const TransformType &t) const
LinearMatrixType	operator* (const LinearMatrixType &other) const
template<typename Derived >
LinearMatrixType	operator* (const RotationBase< Derived, Dim > &r) const
VectorType	operator* (const VectorType &other) const
Scaling &	operator= (const Scaling &other)
template<typename OtherScalarType >
	Scaling (const Scaling< OtherScalarType, Dim > &other)
	Scaling (const VectorType &coeffs)
	Scaling (const Scalar &sx, const Scalar &sy)
	Scaling ()
	Scaling (const Scalar &s)
	Scaling (const Scalar &sx, const Scalar &sy, const Scalar &sz)
Protected Attributes
VectorType	m_coeffs
Friends
LinearMatrixType	operator* (const LinearMatrixType &other, const Scaling &s)

---

Detailed Description

template<typename _Scalar, int _Dim>
class Eigen::Scaling< _Scalar, _Dim >

Represents a possibly non uniform scaling transformation.

This is defined in the Geometry module.

 #include <Eigen/Geometry> 

Parameters:

	_Scalar	the scalar type, i.e., the type of the coefficients.
	_Dim	the dimension of the space, can be a compile time value or Dynamic

Note:

This class is not aimed to be used to store a scaling transformation, but rather to make easier the constructions and updates of Transform objects.

See also:

class Translation, class Transform

---

Member Typedef Documentation

typedef Matrix<Scalar,Dim,Dim> LinearMatrixType

corresponding linear transformation matrix type

typedef _Scalar Scalar

the scalar type of the coefficients

typedef Transform<Scalar,Dim> TransformType

corresponding affine transformation type

typedef Translation<Scalar,Dim> TranslationType

corresponding translation type

typedef Matrix<Scalar,Dim,1> VectorType

corresponding vector type

---

Member Enumeration Documentation

anonymous enum

dimension of the space

---

Constructor & Destructor Documentation

Scaling

(

)

[inline]

Default constructor without initialization.

Scaling

(

const Scalar &

s

)

[inline, explicit]

Constructs and initialize a uniform scaling transformation

Scaling	(	const Scalar &	sx,
		const Scalar &	sy
	)			[inline]

2D only

Scaling	(	const Scalar &	sx,
		const Scalar &	sy,
		const Scalar &	sz
	)			[inline]

3D only

Scaling

(

const VectorType &

coeffs

)

[inline, explicit]

Constructs and initialize the scaling transformation from a vector of scaling coefficients

Scaling

(

const Scaling< OtherScalarType, Dim > &

other

)

[inline, explicit]

Copy constructor with scalar type conversion

---

Member Function Documentation

ei_cast_return_type<Scaling,Scaling<NewScalarType,Dim> >::type cast

(

)

const [inline]

Returns:

*this with scalar type casted to NewScalarType

Note that if NewScalarType is equal to the current scalar type of *this then this function smartly returns a const reference to *this.

Scaling inverse

(

void

)

const [inline]

Returns:

the inverse scaling

bool isApprox	(	const Scaling< _Scalar, _Dim > &	other,
		typename NumTraits< Scalar >::Real	prec = precision<Scalar>()
	)			const [inline]

Returns:

true if *this is approximately equal to other, within the precision determined by prec.

See also:

MatrixBase::isApprox()

Scaling< Scalar, Dim >::TransformType operator*

(

const TransformType &

t

)

const [inline]

Concatenates a scaling and an affine transformation

Scaling operator*

(

const Scaling< _Scalar, _Dim > &

other

)

const [inline]

Concatenates two scaling

LinearMatrixType operator*

(

const LinearMatrixType &

other

)

const [inline]

Concatenates a scaling and a linear transformation matrix

VectorType operator*

(

const VectorType &

other

)

const [inline]

Applies scaling to vector

Scaling< Scalar, Dim >::TransformType operator*

(

const TranslationType &

t

)

const [inline]

Concatenates a scaling and a translation

---

Friends And Related Function Documentation

LinearMatrixType operator*	(	const LinearMatrixType &	other,
		const Scaling< _Scalar, _Dim > &	s
	)			[friend]

Concatenates a linear transformation matrix and a scaling

---

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