Eigen::FFT< T_Scalar, T_Impl > Class Template Reference

---

Detailed Description

template<typename T_Scalar, typename T_Impl = default_fft_impl<T_Scalar>>
class Eigen::FFT< T_Scalar, T_Impl >

Definition at line 176 of file FFT.

List of all members.

Public Types
enum	Flag { Default = 0, Unscaled = 1, HalfSpectrum = 2, Speedy = 32767 }
typedef T_Impl	impl_type
typedef DenseIndex	Index
typedef impl_type::Scalar	Scalar
typedef impl_type::Complex	Complex
Public Member Functions
	FFT (const impl_type &impl=impl_type(), Flag flags=Default)
bool	HasFlag (Flag f) const
void	SetFlag (Flag f)
void	ClearFlag (Flag f)
void	fwd (Complex *dst, const Scalar *src, Index nfft)
void	fwd (Complex *dst, const Complex *src, Index nfft)
template<typename _Input >
void	fwd (std::vector< Complex > &dst, const std::vector< _Input > &src)
template<typename InputDerived , typename ComplexDerived >
void	fwd (MatrixBase< ComplexDerived > &dst, const MatrixBase< InputDerived > &src, Index nfft=-1)
template<typename InputDerived >
fft_fwd_proxy< MatrixBase < InputDerived >, FFT < T_Scalar, T_Impl > >	fwd (const MatrixBase< InputDerived > &src, Index nfft=-1)
template<typename InputDerived >
fft_inv_proxy< MatrixBase < InputDerived >, FFT < T_Scalar, T_Impl > >	inv (const MatrixBase< InputDerived > &src, Index nfft=-1)
void	inv (Complex *dst, const Complex *src, Index nfft)
void	inv (Scalar *dst, const Complex *src, Index nfft)
template<typename OutputDerived , typename ComplexDerived >
void	inv (MatrixBase< OutputDerived > &dst, const MatrixBase< ComplexDerived > &src, Index nfft=-1)
template<typename _Output >
void	inv (std::vector< _Output > &dst, const std::vector< Complex > &src, Index nfft=-1)
impl_type &	impl ()
Private Member Functions
template<typename T_Data >
void	scale (T_Data *x, Scalar s, Index nx)
void	ReflectSpectrum (Complex *freq, Index nfft)
Private Attributes
impl_type	m_impl
int	m_flag

---

Member Typedef Documentation

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

typedef impl_type::Complex Eigen::FFT< T_Scalar, T_Impl >::Complex

Definition at line 182 of file FFT.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

typedef T_Impl Eigen::FFT< T_Scalar, T_Impl >::impl_type

Definition at line 179 of file FFT.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

typedef DenseIndex Eigen::FFT< T_Scalar, T_Impl >::Index

Definition at line 180 of file FFT.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

typedef impl_type::Scalar Eigen::FFT< T_Scalar, T_Impl >::Scalar

Definition at line 181 of file FFT.

---

Member Enumeration Documentation

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

enum Eigen::FFT::Flag

Enumerator:

Default
Unscaled
HalfSpectrum
Speedy

Definition at line 184 of file FFT.

---

Constructor & Destructor Documentation

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

Eigen::FFT< T_Scalar, T_Impl >::FFT	(	const impl_type &	impl = impl_type(),
		Flag	flags = Default
	)		[inline]

Definition at line 192 of file FFT.

---

Member Function Documentation

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::ClearFlag

(

Flag

f

)

[inline]

Definition at line 201 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::m_flag.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::fwd	(	Complex *	dst,
		const Scalar *	src,
		Index	nfft
	)		[inline]

Definition at line 204 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::HalfSpectrum, Eigen::FFT< T_Scalar, T_Impl >::HasFlag(), Eigen::FFT< T_Scalar, T_Impl >::m_impl, and Eigen::FFT< T_Scalar, T_Impl >::ReflectSpectrum().

Referenced by Eigen::internal::kiss_cpx_fft< _Scalar >::bfly_generic(), and Eigen::FFT< T_Scalar, T_Impl >::fwd().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename InputDerived >

fft_fwd_proxy< MatrixBase<InputDerived>, FFT<T_Scalar,T_Impl> > Eigen::FFT< T_Scalar, T_Impl >::fwd	(	const MatrixBase< InputDerived > &	src,
		Index	nfft = -1
	)		[inline]

Definition at line 275 of file FFT.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::fwd	(	Complex *	dst,
		const Complex *	src,
		Index	nfft
	)		[inline]

Definition at line 212 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::m_impl.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename _Input >

void Eigen::FFT< T_Scalar, T_Impl >::fwd	(	std::vector< Complex > &	dst,
		const std::vector< _Input > &	src
	)		[inline]

Definition at line 227 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::fwd(), Eigen::FFT< T_Scalar, T_Impl >::HalfSpectrum, and Eigen::FFT< T_Scalar, T_Impl >::HasFlag().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename InputDerived , typename ComplexDerived >

void Eigen::FFT< T_Scalar, T_Impl >::fwd	(	MatrixBase< ComplexDerived > &	dst,
		const MatrixBase< InputDerived > &	src,
		Index	nfft = -1
	)		[inline]

Definition at line 238 of file FFT.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

bool Eigen::FFT< T_Scalar, T_Impl >::HasFlag

(

Flag

f

)

const [inline]

Definition at line 195 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::m_flag.

Referenced by Eigen::internal::kissfft_impl< T >::fwd(), Eigen::FFT< T_Scalar, T_Impl >::fwd(), and Eigen::FFT< T_Scalar, T_Impl >::inv().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

impl_type& Eigen::FFT< T_Scalar, T_Impl >::impl

(

)

[inline]

Definition at line 387 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::m_impl.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename InputDerived >

fft_inv_proxy< MatrixBase<InputDerived>, FFT<T_Scalar,T_Impl> > Eigen::FFT< T_Scalar, T_Impl >::inv	(	const MatrixBase< InputDerived > &	src,
		Index	nfft = -1
	)		[inline]

Definition at line 283 of file FFT.

Referenced by Eigen::FFT< T_Scalar, T_Impl >::inv().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::inv	(	Complex *	dst,
		const Complex *	src,
		Index	nfft
	)		[inline]

Definition at line 289 of file FFT.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename _Output >

void Eigen::FFT< T_Scalar, T_Impl >::inv	(	std::vector< _Output > &	dst,
		const std::vector< Complex > &	src,
		Index	nfft = -1
	)		[inline]

Definition at line 366 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::HalfSpectrum, Eigen::FFT< T_Scalar, T_Impl >::HasFlag(), and Eigen::FFT< T_Scalar, T_Impl >::inv().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename OutputDerived , typename ComplexDerived >

void Eigen::FFT< T_Scalar, T_Impl >::inv	(	MatrixBase< OutputDerived > &	dst,
		const MatrixBase< ComplexDerived > &	src,
		Index	nfft = -1
	)		[inline]

Definition at line 306 of file FFT.

References Eigen::DirectAccessBit, EIGEN_STATIC_ASSERT, EIGEN_STATIC_ASSERT_SAME_VECTOR_SIZE, and EIGEN_STATIC_ASSERT_VECTOR_ONLY.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::inv	(	Scalar *	dst,
		const Complex *	src,
		Index	nfft
	)		[inline]

Definition at line 297 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::HasFlag(), Eigen::FFT< T_Scalar, T_Impl >::m_impl, Eigen::FFT< T_Scalar, T_Impl >::scale(), and Eigen::FFT< T_Scalar, T_Impl >::Unscaled.

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::ReflectSpectrum	(	Complex *	freq,
		Index	nfft
	)		[inline, private]

Definition at line 407 of file FFT.

References Eigen::internal::conj().

Referenced by Eigen::FFT< T_Scalar, T_Impl >::fwd().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

template<typename T_Data >

void Eigen::FFT< T_Scalar, T_Impl >::scale	(	T_Data *	x,
		Scalar	s,
		Index	nx
	)		[inline, private]

Definition at line 392 of file FFT.

Referenced by Eigen::internal::kissfft_impl< T >::fwd(), and Eigen::FFT< T_Scalar, T_Impl >::inv().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

void Eigen::FFT< T_Scalar, T_Impl >::SetFlag

(

Flag

f

)

[inline]

Definition at line 198 of file FFT.

References Eigen::FFT< T_Scalar, T_Impl >::m_flag.

---

Member Data Documentation

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

int Eigen::FFT< T_Scalar, T_Impl >::m_flag [private]

Definition at line 416 of file FFT.

Referenced by Eigen::FFT< T_Scalar, T_Impl >::ClearFlag(), Eigen::FFT< T_Scalar, T_Impl >::HasFlag(), and Eigen::FFT< T_Scalar, T_Impl >::SetFlag().

template<typename T_Scalar , typename T_Impl = default_fft_impl<T_Scalar>>

impl_type Eigen::FFT< T_Scalar, T_Impl >::m_impl [private]

Definition at line 415 of file FFT.

Referenced by Eigen::internal::kissfft_impl< T >::fwd(), Eigen::FFT< T_Scalar, T_Impl >::fwd(), Eigen::FFT< T_Scalar, T_Impl >::impl(), and Eigen::FFT< T_Scalar, T_Impl >::inv().