CBVSReader Class Reference

Reader for CBVS format. More...

Inheritance diagram for CBVSReader:

Public Member Functions
	CBVSReader (od_istream *, bool glob_info_only=false, bool forceusecbvsinfo=false)
	~CBVSReader ()
const CBVSInfo &	info () const
int	bytesOverheadPerTrace () const
void	close ()
BinID	nextBinID () const
bool	goTo (const BinID &)
	returns 0/0 at end More...
bool	toStart ()
bool	toNext ()
bool	hasAuxInfo () const
bool	getAuxInfo (PosAuxInfo &)
bool	fetch (void **buffers, const bool *comps=0, const Interval< int > *samps=0, int offs=0)
bool	fetch (TraceData &buffers, const bool *comps=0, const Interval< int > *samps=0, int offs=0)
int	trcNrAtPosition () const
const TypeSet< Coord > &	trailerCoords () const
Public Member Functions inherited from CBVSIO
	CBVSIO ()
virtual	~CBVSIO ()
bool	failed () const
const char *	errMsg () const
int	nrComponents () const
const BinID &	binID () const
void	setErrMsg (const char *s)

Static Public Member Functions
static const char *	check (od_istream &)
static int	defHeaderSize ()

Protected Member Functions
void	getAuxInfoSel (const char *)
bool	readComps ()
bool	readGeom (bool)
bool	readTrailer ()
void	getText (int, BufferString &)
void	toOffs (od_int64)
int	getPosNr (const PosInfo::CubeDataPos &, bool) const
Coord	getTrailerCoord (const BinID &) const
void	mkPosNrs ()

Protected Attributes
od_istream &	strm_
CBVSInfo	info_
Protected Attributes inherited from CBVSIO
const char *	errmsg_
int *	cnrbytes_
int	nrcomps_
bool	strmclosed_
int	nrxlines_
CoordPol	coordpol_
TypeSet< Coord >	trailercoords_
PosInfo::CubeData	lds_
BinID	curbinid_

Private Member Functions
bool	readInfo (bool, bool)
CoordPol	coordPol () const
void	setCubePos (bool fromgeom) const
void	updCurBinID () const

Private Attributes
bool	hinfofetched_
int	bytespertrace_
BinID	firstbinid_
int	idxatpos_
int	auxnrbytes_
DataInterpreter< int >	iinterp_
DataInterpreter< float >	finterp_
DataInterpreter< double >	dinterp_
TrcKeySampling	hs_
Interval< int >	samprg_
TypeSet< int >	posnrs_
od_int64	lastposfo_
od_int64	datastartfo_
PosInfo::CubeDataPos	curgeomcubepos_
PosInfo::CubeDataPos	curldscubepos_

Friends
class	CBVSReadMgr

Additional Inherited Members
Public Types inherited from CBVSIO
enum	CoordPol { InAux =0, InTrailer =1, NotStored =2 }
Static Public Attributes inherited from CBVSIO
static const int	integersize
static const int	version
static const int	headstartbytes

Detailed Description

Reader for CBVS format.

The stream it works on will be deleted on destruction or if close() is explicitly called.

If you construct with glob_info_only == true, you cannot use the reader. After construction, the info() is then usable but no precise positioning is available. In other words, the trailer is not read.

From OpendTect v2.2.1, The toNext() interface will always return ascending inlines, no matter whether the data is stored with descending inlines.

Constructor & Destructor Documentation

CBVSReader::CBVSReader	(	od_istream *	,
		bool	glob_info_only = false,
		bool	forceusecbvsinfo = false
	)

CBVSReader::~CBVSReader

(

)

Member Function Documentation

int CBVSReader::bytesOverheadPerTrace

(

)

const

static const char* CBVSReader::check ( od_istream &  )

static

Determines whether a file is a CBVS file returns an error message, or null if OK.

void CBVSReader::close ( )

virtual

Implements CBVSIO.

CoordPol CBVSReader::coordPol ( ) const

inlineprivate

static int CBVSReader::defHeaderSize ( )

inlinestatic

bool CBVSReader::fetch	(	void **	buffers,
		const bool *	comps = 0,
		const Interval< int > *	samps = 0,
		int	offs = 0
	)

bool CBVSReader::fetch	(	TraceData &	buffers,
		const bool *	comps = 0,
		const Interval< int > *	samps = 0,
		int	offs = 0
	)

Gets the sample data. 'comps', if provided, selects the components. If 'samps' is non-null, it should hold start and end sample to read. offs is an offset in the buffers.

bool CBVSReader::getAuxInfo

(

PosAuxInfo &

)

Gets the aux info. Follow by fetch() to get the sample data.

void CBVSReader::getAuxInfoSel ( const char *  )

protected

int CBVSReader::getPosNr ( const PosInfo::CubeDataPos &  , bool    ) const

protected

void CBVSReader::getText ( int  , BufferString &    )

protected

Coord CBVSReader::getTrailerCoord ( const BinID &  ) const

protected

bool CBVSReader::goTo

(

const BinID &

)

returns 0/0 at end

bool CBVSReader::hasAuxInfo ( ) const

inline

const CBVSInfo& CBVSReader::info ( ) const

inline

void CBVSReader::mkPosNrs ( )

protected

BinID CBVSReader::nextBinID

(

)

const

bool CBVSReader::readComps ( )

protected

bool CBVSReader::readGeom ( bool  )

protected

bool CBVSReader::readInfo ( bool  , bool    )

private

bool CBVSReader::readTrailer ( )

protected

void CBVSReader::setCubePos ( bool  fromgeom ) const

private

bool CBVSReader::toNext

(

)

void CBVSReader::toOffs ( od_int64  )

protected

bool CBVSReader::toStart

(

)

const TypeSet<Coord>& CBVSReader::trailerCoords ( ) const

inline

int CBVSReader::trcNrAtPosition ( ) const

inline

void CBVSReader::updCurBinID ( ) const

private

Friends And Related Function Documentation

friend class CBVSReadMgr

friend

Member Data Documentation

int CBVSReader::auxnrbytes_

private

int CBVSReader::bytespertrace_

private

PosInfo::CubeDataPos CBVSReader::curgeomcubepos_

mutableprivate

PosInfo::CubeDataPos CBVSReader::curldscubepos_

mutableprivate

od_int64 CBVSReader::datastartfo_

private

DataInterpreter<double> CBVSReader::dinterp_

private

DataInterpreter<float> CBVSReader::finterp_

private

BinID CBVSReader::firstbinid_

private

bool CBVSReader::hinfofetched_

private

TrcKeySampling CBVSReader::hs_

private

int CBVSReader::idxatpos_

private

DataInterpreter<int> CBVSReader::iinterp_

private

CBVSInfo CBVSReader::info_

protected

od_int64 CBVSReader::lastposfo_

private

TypeSet<int> CBVSReader::posnrs_

private

Interval<int> CBVSReader::samprg_

private

od_istream& CBVSReader::strm_

protected