A slab reader for VDF files. More...

#include <WaveletBlock3DReader.h>

Inheritance diagram for VAPoR::WaveletBlock3DReader:

Public Member Functions
	WaveletBlock3DReader (const MetadataVDC &metadata)

	WaveletBlock3DReader (const string &metafile)

virtual	~WaveletBlock3DReader ()

virtual int	OpenVariableRead (size_t timestep, const char *varname, int reflevel=0, int lod=0)

virtual int	OpenVariableWrite (size_t timestep, const char *varname, int reflevel=0, int lod=0)

virtual int	CloseVariable ()

int	ReadSlabs (float *two_slabs, int unblock)

Public Member Functions inherited from VAPoR::WaveletBlockIOBase
	WaveletBlockIOBase (const MetadataVDC &metadata)

	WaveletBlockIOBase (const string &metafile)

virtual	~WaveletBlockIOBase ()

virtual int	VariableExists (size_t ts, const char *varname, int reflevel=0, int lod=0) const

virtual int	BlockWriteRegion (const float *region, const size_t bmin[3], const size_t bmax[3], bool block=true)

virtual int	WriteRegion (const float *region, const size_t min[3], const size_t max[3])

virtual int	WriteRegion (const float *region)

virtual int	WriteSlice (const float *slice)

virtual int	BlockReadRegion (const size_t bmin[3], const size_t bmax[3], float *region, bool unblock=true)

virtual int	ReadRegion (const size_t min[3], const size_t max[3], float *region)

virtual int	ReadRegion (float *region)

virtual int	ReadSlice (float *slice)

int	GetBlockMins (const float **mins, int reflevel)

int	GetBlockMaxs (const float **maxs, int reflevel)

void	Tile2NonTile (const float blk, const size_t bcoord[2], const size_t min[2], const size_t max[2], VarType_T vtype, float voxels) const

void	Block2NonBlock (const float blk, const size_t bcoord[3], const size_t min[3], const size_t max[3], float voxels) const

virtual const float *	GetDataRange () const

void	GetValidRegion (size_t min[3], size_t max[3], int reflevel) const

virtual void	GetDim (size_t dim[3], int reflevel=0) const

virtual void	GetDimBlk (size_t bdim[3], int reflevel=0) const

Public Member Functions inherited from VAPoR::VDFIOBase
	VDFIOBase (const MetadataVDC &metadata)

	VDFIOBase (const string &metafile)

virtual	~VDFIOBase ()

double	GetReadTimer () const

double	GetSeekTimer () const

void	SeekTimerReset ()

void	SeekTimerStart ()

void	SeekTimerStop ()

double	GetWriteTimer () const

double	GetXFormTimer () const

Public Member Functions inherited from VAPoR::MetadataVDC
	MetadataVDC (const size_t dim[3], size_t numTransforms, const size_t bs[3], int nFilterCoef=1, int nLiftingCoef=1, int msbFirst=1, int vdfVersion=VDF_VERSION)

	MetadataVDC (const size_t dim[3], const size_t bs[3], const vector< size_t > &cratios, string wname, string wmode)

	MetadataVDC (const string &metafile)

	MetadataVDC (const MetadataVDC &node)

virtual	~MetadataVDC ()

int	Merge (const MetadataVDC &metadata, size_t ts=0)

int	Merge (const string &path, size_t ts=0)

int	MakeCurrent () const

const string &	GetParentDir () const

const string &	GetMetafileName () const

const string &	GetDataDirName () const

int	ConstructFullVBase (size_t ts, const string &var, string *path) const

int	ConstructFullAuxBase (size_t ts, string *path) const

int	Write (const string &path, int relative_path=1)

virtual const size_t *	GetBlockSize () const

virtual void	GetBlockSize (size_t bs[3], int) const

virtual void	GetGridDim (size_t dim[3]) const

const size_t *	GetDimension () const

int	GetFilterCoef () const

int	GetLiftingCoef () const

virtual int	GetNumTransforms () const

int	GetMSBFirst () const

int	GetVDFVersion () const

string	GetWaveName () const

string	GetBoundaryMode () const

virtual vector< size_t >	GetCRatios () const

int	GetVDCType () const

int	SetGridType (const string &value)

string	GetGridType () const

int	IsValidGridType (const string &value) const

int	SetCoordSystemType (const string &value)

string	GetCoordSystemType () const

int	IsValidCoordSystemType (const string &value) const

int	SetExtents (const vector< double > &value)

vector< double >	GetExtents (size_t ts=0) const

int	IsValidExtents (const vector< double > &value) const

int	SetNumTimeSteps (long value)

long	GetNumTimeSteps () const

int	IsValidTimeStep (long value) const

int	SetVariableNames (const vector< string > &value)

int	SetVariables3D (const vector< string > &value)

vector< string >	GetVariables3D () const

vector< string >	GetCoordinateVariables () const

int	SetCoordinateVariables (const vector< string > &value)

int	SetVariables2DXY (const vector< string > &value)

int	SetVariables2DXZ (const vector< string > &value)

int	SetVariables2DYZ (const vector< string > &value)

vector< string >	GetVariables2DXY () const

vector< string >	GetVariables2DXZ () const

vector< string >	GetVariables2DYZ () const

int	SetComment (const string &value)

string	GetComment () const

int	SetPeriodicBoundary (const vector< long > &value)

vector< long >	GetPeriodicBoundary () const

int	SetGridPermutation (const vector< long > &value)

int	SetMissingValue (double value)

int	SetMissingValue ()

vector< double >	GetMissingValue () const

vector< long >	GetGridPermutation () const

int	SetMapProjection (const string &value)

virtual string	GetMapProjection () const

int	SetTSUserTime (size_t ts, const vector< double > &value)

double	GetTSUserTime (size_t ts) const

int	SetTSUserTimeStamp (size_t ts, const string &s)

void	GetTSUserTimeStamp (size_t ts, string &s) const

string	GetTSAuxBasePath (size_t ts) const

int	HasTSUserTime (size_t ts) const

int	IsValidUserTime (const vector< double > &value) const

int	SetTSXCoords (size_t ts, const vector< double > &value)

vector< double >	GetTSXCoords (size_t ts) const

int	SetTSYCoords (size_t ts, const vector< double > &value)

vector< double >	GetTSYCoords (size_t ts) const

int	SetTSZCoords (size_t ts, const vector< double > &value)

vector< double >	GetTSZCoords (size_t ts) const

int	SetTSComment (size_t ts, const string &value)
	Set a comment for the time step indicated by `ts`. More...

string	GetTSComment (size_t ts) const
	Return the comment for the indicated time step, `ts`, if it exists. More...

int	SetTSExtents (size_t ts, const vector< double > &value)

vector< double >	GetTSExtents (size_t ts) const

int	SetTSMissingValue (size_t ts, double v)

vector< double >	GetTSMissingValue (size_t ts) const
	Returns the time-varying missing value, if any. More...

int	SetVComment (size_t ts, const string &var, const string &value)

string	GetVComment (size_t ts, const string &var) const

string	GetVBasePath (size_t ts, const string &var) const

int	SetVBasePath (size_t ts, const string &var, const string &value)

int	SetVDataRange (size_t ts, const string &var, const vector< double > &value)

vector< double >	GetVDataRange (size_t ts, const string &var) const

int	IsValidVDataRange (const vector< double > &value) const

int	SetVMissingValue (size_t ts, const string &var, double v)

vector< double >	GetVMissingValue (size_t ts, const string &var) const

vector< string >	GetUserDataLongTags () const

int	SetUserDataLong (const string &tag, const vector< long > &value)

vector< long >	GetUserDataLong (const string &tag) const

vector< string >	GetUserDataDoubleTags () const

int	SetUserDataDouble (const string &tag, const vector< double > &value)

vector< double >	GetUserDataDouble (const string &tag) const

vector< string >	GetUserDataStringTags () const

int	SetUserDataString (const string &tag, const string &value)

string	GetUserDataString (const string &tag) const

int	SetUserDataStringVec (const string &tag, const vector< string > &value)

vector< string >	GetUserDataStringVec (const string &tag) const

vector< string >	GetTSUserDataLongTags () const

int	SetTSUserDataLong (size_t ts, const string &tag, const vector< long > &value)

vector< long >	GetTSUserDataLong (size_t ts, const string &tag) const

int	SetTSUserDataDouble (size_t ts, const string &tag, const vector< double > &value)

vector< double >	GetTSUserDataDouble (size_t ts, const string &tag) const

vector< string >	GetTSUserDataDoubleTags () const

int	SetTSUserDataString (size_t ts, const string &tag, const string &value)

string	GetTSUserDataString (size_t ts, const string &tag) const

vector< string >	GetTSUserDataStringTags () const

vector< string >	GetVUserDataLongTags () const

int	SetVUserDataLong (size_t ts, const string &var, const string &tag, const vector< long > &value)

vector< long >	GetVUserDataLong (size_t ts, const string &var, const string &tag) const

vector< string >	GetVUserDataDoubleTags () const

int	SetVUserDataDouble (size_t ts, const string &var, const string &tag, const vector< double > &value)

vector< double >	GetVUserDataDouble (size_t ts, const string &var, const string &tag) const

int	SetVUserDataString (size_t ts, const string &var, const string &tag, const string &value)

string	GetVUserDataString (size_t ts, const string &var, const string &tag) const

vector< string >	GetVUserDataStringTags () const

Public Member Functions inherited from VAPoR::Metadata
	Metadata ()

virtual	~Metadata ()

virtual std::vector< std::string >	GetVariableNames () const

virtual void	GetTSUserTimeStamp (size_t ts, std::string &s) const =0

virtual bool	GetMissingValue (std::string varname, float &value) const

virtual void	MapVoxToBlk (const size_t vcoord[3], size_t bcoord[3], int reflevel=-1) const

virtual void	MapVoxToUser (size_t timestep, const size_t vcoord0[3], double vcoord1[3], int ref_level=0) const

void	MapUserToVox (size_t timestep, const double vcoord0[3], size_t vcoord1[3], int reflevel) const

virtual VarType_T	GetVarType (const std::string &varname) const

virtual int	IsValidRegion (const size_t min[3], const size_t max[3], int reflevel=0) const

virtual int	IsValidRegionBlk (const size_t min[3], const size_t max[3], int reflevel=0) const

virtual bool	IsCoordinateVariable (std::string varname) const

Public Member Functions inherited from VetsUtil::MyBase
	MyBase ()

const string &	getClassName () const

Public Member Functions inherited from VAPoR::ParsedXml
virtual	~ParsedXml ()

virtual bool	charHandler (ExpatParseMgr , const XML_Char , int)

Protected Member Functions
void	_GetDataRange (float range[2]) const

Protected Member Functions inherited from VAPoR::WaveletBlockIOBase
int	seekBlocks (unsigned int offset, int reflevel=0)

int	seekLambdaBlocks (const size_t bcoord[3])

int	seekGammaBlocks (const size_t bcoord[3], int reflevel)

int	readBlocks (size_t n, float *blks, int reflevel)

int	readLambdaBlocks (size_t n, float *blks)

int	readGammaBlocks (size_t n, float *blks, int reflevel)

int	writeBlocks (const float *blks, size_t n, int reflevel)

int	writeLambdaBlocks (const float *blks, size_t n)

int	writeGammaBlocks (const float *blks, size_t n, int reflevel)

virtual void	_GetValidRegion (size_t minreg[3], size_t maxreg[3]) const

Protected Member Functions inherited from VAPoR::VDFIOBase
void	_ReadTimerReset ()

void	_ReadTimerStart ()

void	_ReadTimerStop ()

void	_WriteTimerReset ()

void	_WriteTimerStart ()

void	_WriteTimerStop ()

void	_XFormTimerReset ()

void	_XFormTimerStart ()

void	_XFormTimerStop ()

int	_MaskOpenWrite (size_t timestep, string varname, int reflevel)

int	_MaskOpenRead (size_t timestep, string varname, int reflevel)

int	_MaskClose ()

int	_MaskWrite (const float *srcblk, const size_t bmin_p[3], const size_t bmax_p[3], bool block)

int	_MaskRead (const size_t bmin_p[3], const size_t bmax_p[3])

void	_MaskRemove (float *blk, bool &valid_data) const

void	_MaskReplace (size_t bx, size_t by, size_t bz, float *blk) const

Protected Member Functions inherited from VetsUtil::MyBase
void	SetClassName (const string &name)

Additional Inherited Members
Public Types inherited from VAPoR::Metadata
enum	VarType_T { VARUNKNOWN = -1, VAR3D, VAR2D_XY, VAR2D_XZ, VAR2D_YZ }

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)

Public Attributes inherited from VAPoR::ParsedXml
ParsedXml *	previousClass

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

Static Protected Member Functions inherited from VAPoR::VDFIOBase
static void	_UnpackCoord (VarType_T vtype, const size_t src[3], size_t dst[3], size_t fill)

static void	_PackCoord (VarType_T vtype, const size_t src[3], size_t dst[3], size_t fill)

static void	_FillPackedCoord (VarType_T vtype, const size_t src[3], size_t dst[3], size_t fill)

Protected Attributes inherited from VAPoR::WaveletBlockIOBase
int	_reflevel

size_t	_timeStep

string	_varName

float *	_super_block

float *	_super_tile

VarType_T	_vtype

WaveletBlock2D *	_wb2dXY

WaveletBlock2D *	_wb2dXZ

WaveletBlock2D *	_wb2dYZ

WaveletBlock3D *	_wb3d

float *	_mins3d [MAX_LEVELS]

float *	_maxs3d [MAX_LEVELS]

float *	_mins2d [MAX_LEVELS]

float *	_maxs2d [MAX_LEVELS]

Protected Attributes inherited from VAPoR::Metadata
bool	_deprecated_get_dim

Static Protected Attributes inherited from VAPoR::WaveletBlockIOBase
static const int	MAX_LEVELS = 16

Static Protected Attributes inherited from VAPoR::ParsedXml
static const string	_stringType

static const string	_longType

static const string	_doubleType

static const string	_typeAttr

Detailed Description

A slab reader for VDF files.

Author: John Clyne

Version: $Revision$

Date: $Date$

This class provides a low-level API for reading data volumes from a VDF file. The Read methods contained within are the most efficient (both in terms of memory and performance) for reading an entire data volume.

Definition at line 26 of file WaveletBlock3DReader.h.

Constructor & Destructor Documentation

VAPoR::WaveletBlock3DReader::WaveletBlock3DReader ( const MetadataVDC & metadata )

Constructor for the WaveletBlock3DReader class.

Parameters

[in] metadata A pointer to a Metadata structure identifying the data set upon which all future operations will apply.

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

See also: Metadata, GetErrCode()

VAPoR::WaveletBlock3DReader::WaveletBlock3DReader ( const string & metafile )

Constructor for the WaveletBlock3DReader class.

Parameters

[in] metadata Path to a metadata file for which all future class operations will apply

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

See also: MetadataVDC, GetErrCode()

virtual VAPoR::WaveletBlock3DReader::~WaveletBlock3DReader ( )

virtual

Member Function Documentation

void VAPoR::WaveletBlock3DReader::_GetDataRange ( float range[2] ) const

inlineprotectedvirtual

Implements VAPoR::WaveletBlockIOBase.

Definition at line 130 of file WaveletBlock3DReader.h.

virtual int VAPoR::WaveletBlock3DReader::CloseVariable ( )

virtual

Close the currently opened variable.

See also: OpenVariableWrite(), OpenVariableRead()

Reimplemented from VAPoR::WaveletBlockIOBase.

Reimplemented in VAPoR::WaveletBlock3DBufReader.

virtual int VAPoR::WaveletBlock3DReader::OpenVariableRead	(	size_t	timestep,
		const char *	varname,
		int	reflevel = `0`,
		int	lod = `0`
	)

virtual

Open the named variable for reading

This method prepares the multiresolution data volume, indicated by a variable name and time step pair, for subsequent read operations by methods of this class. Furthermore, the number of the refinement level parameter, reflevel indicates the resolution of the volume in the multiresolution hierarchy. The valid range of values for reflevel is [0..max_refinement], where max_refinement is the maximum finement level of the data set: Metadata::GetNumTransforms(). volume when the volume was created. A value of zero indicates the coarsest resolution data, a value of max_refinement indicates the finest resolution data.

An error occurs, indicated by a negative return value, if the volume identified by the {varname, timestep, reflevel} tripple is not present on disk. Note the presence of a volume can be tested for with the VariableExists() method.

Parameters

[in]	timestep	Time step of the variable to read
[in]	varname	Name of the variable to read
[in]	reflevel	Refinement level of the variable. A value of -1 indicates the maximum refinment level defined for the VDC

Return values

status Returns a non-negative value on success

See also: Metadata::GetVariableNames(), Metadata::GetNumTransforms()

Reimplemented from VAPoR::WaveletBlockIOBase.

Reimplemented in VAPoR::WaveletBlock3DBufReader.

virtual int VAPoR::WaveletBlock3DReader::OpenVariableWrite	(	size_t	timestep,
		const char *	varname,
		int	reflevel = `0`,
		int	lod = `0`
	)

inlinevirtual

Open the named variable for writing

Prepare a vapor data file for the creation of a multiresolution data volume via subsequent write operations by other methods of this classes derived from this class. The data volume is identified by the specfied time step and variable name. The number of forward transforms applied to the volume is determined by the Metadata object used to initialize the class. The number of refinement levels actually saved to the data collection are determined by reflevels. If reflevels is zero, the default, only the coarsest approximation is saved. If reflevels is one, all the coarsest and first refinement level is saved, and so on. A value of -1 indicates the maximum refinment level permitted by the VDF

Parameters

[in]	timestep	Time step of the variable to read
[in]	varname	Name of the variable to read
[in]	reflevel	Refinement level of the variable. A value of -1 indicates the maximum refinment level.

Return values

status Returns a non-negative value on success

See also: Metadata::GetVariableNames(), Metadata::GetNumTransforms()

Reimplemented from VAPoR::WaveletBlockIOBase.

Definition at line 87 of file WaveletBlock3DReader.h.

int VAPoR::WaveletBlock3DReader::ReadSlabs	(	float *	two_slabs,
		int	unblock
	)

Read in and return two "slabs" of voxels from the currently opened multiresolution data volume. Subsequent calls will read successive pairs of slabs until the entire volume has been read. The dimensions of a pair of slabs is NBX by NBY by 2, where NBX is the dimesion of the volume along the X axis, specified in blocks, and NBY is the Y axis dimension. The dimension of each block are given by the Metadata structure used to initialize this class. The volume returned is stored in the memory region pointed to by region. It is the caller's responsbility to ensure adequate space is available. If the parameter unblock is not true, data are returned in the native storage order used internally by this class. Generally, it is preferable to set this flag to true.

ReadRegion will fail if the requested data are not present. The VariableExists() method may be used to determine if the data identified by a (resolution,timestep,variable) tupple are available on disk.

ReadRegion returns 0 if the entire volume has been read.

Parameters

[out]	two_slabs	Next two successive slabs of data
[in]	unblock	If true, unblock the data from it's native storage format before returning it.

Return values

status Returns a non-negative value on success

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

/Users/clyne/src/vapor/lib/vdf/WaveletBlock3DReader.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation