VAPoR::WaveletBlock2D Class Reference

A tile-based, 2D wavelet transformer. More...

#include <WaveletBlock2D.h>

Inheritance diagram for VAPoR::WaveletBlock2D:

Public Member Functions
	WaveletBlock2D (size_t bs[2], unsigned int n, unsigned int ntilde)
virtual	~WaveletBlock2D ()
void	ForwardTransform (const float *src_super_tile[4], float *dst_super_tile[4])
void	InverseTransform (const float *src_super_tile[4], float *dst_super_tile[4])
Public Member Functions inherited from VetsUtil::MyBase
	MyBase ()
const string &	getClassName () const

Additional Inherited Members
Public Types inherited from VetsUtil::MyBase
typedef void(*	ErrMsgCB_T )(const char *msg, int err_code)
typedef void(*	DiagMsgCB_T )(const char *msg)
Static Public Member Functions inherited from VetsUtil::MyBase
static void	SetErrMsg (const char *format,...)
	Record a formatted error message. More...
static void	SetErrMsg (int errcode, const char *format,...)
	Record a formatted error message and an error code. More...
static const char *	GetErrMsg ()
static void	SetErrCode (int err_code)
	Record an error code. More...
static int	GetErrCode ()
	Retrieve the current error code. More...
static void	SetErrMsgCB (ErrMsgCB_T cb)
static ErrMsgCB_T	GetErrMsgCB ()
static void	SetErrMsgFilePtr (FILE *fp)
static const FILE *	SetErrMsgFilePtr ()
static void	SetDiagMsg (const char *format,...)
	Record a formatted diagnostic message. More...
static const char *	GetDiagMsg ()
static void	SetDiagMsgCB (DiagMsgCB_T cb)
static DiagMsgCB_T	GetDiagMsgCB ()
static void	SetDiagMsgFilePtr (FILE *fp)
static bool	EnableErrMsg (bool enable)
Static Public Attributes inherited from VetsUtil::MyBase
static char *	ErrMsg
static int	ErrCode
static int	ErrMsgSize
static FILE *	ErrMsgFilePtr
static ErrMsgCB_T	ErrMsgCB
static char *	DiagMsg
static int	DiagMsgSize
static FILE *	DiagMsgFilePtr
static DiagMsgCB_T	DiagMsgCB
static bool	Enabled
Protected Member Functions inherited from VetsUtil::MyBase
void	SetClassName (const string &name)

Detailed Description

A tile-based, 2D wavelet transformer.

Author

John Clyne

Version

$Revision$

Date

$Date$

This class provides a 2D, tile-based wavelet transform API based on Wim Swelden's Liftpack library.

Definition at line 27 of file WaveletBlock2D.h.

Constructor & Destructor Documentation

VAPoR::WaveletBlock2D::WaveletBlock2D	(	size_t	bs[2],
		unsigned int	n,
		unsigned int	ntilde
	)

Constructor for the WaveletBlock2D class.

Parameters

[in]	bs	Dimension of a tile along X, Y, and Z coordinates axis
[in]	Number	of wavelet filter coefficients. Valid values are from 1 to Lifting1D::MAX_FILTER_COEFF
[in]	ntilde	Number of wavelet lifting coefficients. Valid values are from 1 to Lifting1D::MAX_FILTER_COEFF
[in]	nthreads	Number of execution threads that may be used by the class for parallel execution.

Note

The success or failure of this constructor can be checked with the GetErrCode() method.

See also

Lifting1D, GetErrCode(),

virtual VAPoR::WaveletBlock2D::~WaveletBlock2D ( )

virtual

Member Function Documentation

void VAPoR::WaveletBlock2D::ForwardTransform	(	const float *	src_super_tile[4],
		float *	dst_super_tile[4]
	)

Perform a forward wavelet transform on a super tile

Performs a forward, 2D wavelet transform on each of eight neighboring tiles contained in a super tile, src_super_tile. The resulting Lambda and Gamma coefficients are stored in a destination super tile, dst_super_tile. The distribution of coefficients stored in the space pointed to by dst_super_tile is as follows: tile 0 contains the L (Lambda) subband, tile 1 contains the Hz (Gamma) subband, tiles 2 & 3 contain the Hy subband, tiles 4 - 7 contain the Hx subband.

Parameters

[in]	src_super_tile	An array of pointers to tiles.
[out]	dst_super_tile	An array of pointers to tiles.

Note

The resulting transformed coefficients are stored as tranposed arrays. The tiles may be re-ordered to conventional, X, Y, Z order with the Transpose() method.

See also

InverseTransform(), Transpose()

void VAPoR::WaveletBlock2D::InverseTransform	(	const float *	src_super_tile[4],
		float *	dst_super_tile[4]
	)

Perform an inverse wavelet transform on a super tile

Performs a inverse, 2D wavelet transform on each of eight neighboring tiles contained in a super tile, src_super_tile. The resulting coefficients are stored in a destination super tile, dst_super_tile.

Parameters

[in]	src_super_tile	An array of pointers to tiles
[out]	dst_super_tile	An array of pointers to tiles.

See also

ForwardTransform()

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

• /Users/clyne/src/vapor/lib/vdf/WaveletBlock2D.h