SeisMSCProvider Class Reference

Reads seismic data into buffers providing a Moving Virtual Subcube of seismic data. More...

List of all members.

Public Types
enum	AdvanceState { NewPosition, Buffering, EndReached, Error }
Public Member Functions
	SeisMSCProvider (const MultiID &)
	Use any real user entry from '.omf' file.
	SeisMSCProvider (const IOObj &)
	Use any real user entry from '.omf' file.
	SeisMSCProvider (const char *fnm)
	'loose' 3D Post-stack CBVS files only.
virtual	~SeisMSCProvider ()
bool	is2D () const
bool	prepareWork ()
	Opens the input data. Can still set stepouts etc.
void	forceFloatData (bool yn)
void	setStepout (int, int, bool required)
void	setStepout (Array2D< bool > *mask)
void	setStepoutStep (int i, int c)
int	inlStepout (bool req) const
int	crlStepout (bool req) const
void	setSelData (Seis::SelData *)
	seldata becomes mine
AdvanceState	advance ()
const char *	errMsg () const
BinID	getPos () const
int	getTrcNr () const
SeisTrc *	get (int deltainl, int deltacrl)
SeisTrc *	get (const BinID &)
const SeisTrc *	get (int i, int c) const
const SeisTrc *	get (const BinID &bid) const
int	comparePos (const SeisMSCProvider &) const
	0 = equal; -1 means I need to next(), 1 the other
int	estimatedNrTraces () const
	returns -1 when unknown
SeisTrcReader &	reader ()
const SeisTrcReader &	reader () const
Protected Types
enum	ReadState { NeedStart, ReadOK, ReadAtEnd, ReadErr }
Protected Member Functions
void	init ()
bool	startWork ()
int	readTrace (SeisTrc &)
bool	isReqBoxFilled () const
bool	doAdvance ()
Protected Attributes
SeisTrcReader &	rdr_
ObjectSet< SeisTrcBuf >	tbufs_
RowCol	reqstepout_
RowCol	desstepout_
RowCol	stepoutstep_
Array2D< bool > *	reqmask_
bool	intofloats_
bool	workstarted_
ReadState	readstate_
BufferString	errmsg_
int	estnrtrcs_
int	bufidx_
int	trcidx_
int	pivotidx_
int	pivotidy_

---

Detailed Description

Reads seismic data into buffers providing a Moving Virtual Subcube of seismic data.

This is a SeisTrcGroup that allows advancing by reading traces from storage. Note that the provider may skip incomplete parts.

The get() method returns a pointer to the trace, where you specify the inline and crossline number relative to the center. This is irrespective the steps in the cube's numbers. Therefore, the actual inline number of get(1,0) may be 10 higher than get(0,0) .

The advance() method moves the reader one step further along the seismic storage. The return value will tell you whether there is a new position available to work on, or that more traces need to be read first.

You can specify two stepouts: required and desired. The required stepout traces will always be available when the return of advance() is DataOK. If "Buffering" is returned, then the provider is still gathering more traces.

---

Member Enumeration Documentation

enum SeisMSCProvider::AdvanceState

Enumerator:

NewPosition
Buffering
EndReached
Error

enum SeisMSCProvider::ReadState [protected]

Enumerator:

NeedStart
ReadOK
ReadAtEnd
ReadErr

---

Constructor & Destructor Documentation

SeisMSCProvider::SeisMSCProvider

(

const MultiID &

)

Use any real user entry from '.omf' file.

SeisMSCProvider::SeisMSCProvider

(

const IOObj &

)

Use any real user entry from '.omf' file.

SeisMSCProvider::SeisMSCProvider

(

const char *

fnm

)

'loose' 3D Post-stack CBVS files only.

virtual SeisMSCProvider::~SeisMSCProvider

(

)

[virtual]

---

Member Function Documentation

AdvanceState SeisMSCProvider::advance

(

)

int SeisMSCProvider::comparePos

(

const SeisMSCProvider &

)

const

0 = equal; -1 means I need to next(), 1 the other

int SeisMSCProvider::crlStepout

(

bool

req

)

const [inline]

bool SeisMSCProvider::doAdvance

(

)

[protected]

const char* SeisMSCProvider::errMsg

(

)

const [inline]

int SeisMSCProvider::estimatedNrTraces

(

)

const

returns -1 when unknown

void SeisMSCProvider::forceFloatData

(

bool

yn

)

[inline]

const SeisTrc* SeisMSCProvider::get

(

const BinID &

bid

)

const [inline]

const SeisTrc* SeisMSCProvider::get	(	int	i,
		int	c
	)			const [inline]

SeisTrc* SeisMSCProvider::get	(	int	deltainl,
		int	deltacrl
	)

SeisTrc* SeisMSCProvider::get

(

const BinID &

)

BinID SeisMSCProvider::getPos

(

)

const

int SeisMSCProvider::getTrcNr

(

)

const

void SeisMSCProvider::init

(

)

[protected]

int SeisMSCProvider::inlStepout

(

bool

req

)

const [inline]

bool SeisMSCProvider::is2D

(

)

const

bool SeisMSCProvider::isReqBoxFilled

(

)

const [protected]

bool SeisMSCProvider::prepareWork

(

)

Opens the input data. Can still set stepouts etc.

const SeisTrcReader& SeisMSCProvider::reader

(

)

const [inline]

SeisTrcReader& SeisMSCProvider::reader

(

)

[inline]

int SeisMSCProvider::readTrace

(

SeisTrc &

)

[protected]

void SeisMSCProvider::setSelData

(

Seis::SelData *

)

seldata becomes mine

void SeisMSCProvider::setStepout

(

Array2D< bool > *

mask

)

mask has 2m+1 * 2n+1 entries and becomes mine.

void SeisMSCProvider::setStepout	(	int	,
		int	,
		bool	required
	)

void SeisMSCProvider::setStepoutStep	(	int	i,
		int	c
	)			[inline]

bool SeisMSCProvider::startWork

(

)

[protected]

---

Member Data Documentation

int SeisMSCProvider::bufidx_ [protected]

RowCol SeisMSCProvider::desstepout_ [protected]

BufferString SeisMSCProvider::errmsg_ [protected]

int SeisMSCProvider::estnrtrcs_ [mutable, protected]

bool SeisMSCProvider::intofloats_ [protected]

int SeisMSCProvider::pivotidx_ [protected]

int SeisMSCProvider::pivotidy_ [protected]

SeisTrcReader& SeisMSCProvider::rdr_ [protected]

ReadState SeisMSCProvider::readstate_ [protected]

Array2D<bool>* SeisMSCProvider::reqmask_ [protected]

RowCol SeisMSCProvider::reqstepout_ [protected]

RowCol SeisMSCProvider::stepoutstep_ [protected]

ObjectSet<SeisTrcBuf> SeisMSCProvider::tbufs_ [protected]

int SeisMSCProvider::trcidx_ [protected]

bool SeisMSCProvider::workstarted_ [protected]