SeisMSCProvider Class Reference

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

Public Types
enum	AdvanceState { NewPosition , Buffering , EndReached , Error }

Public Member Functions
	SeisMSCProvider (const char *fnm)
	'loose' 3D Post-stack CBVS files only. More...
	SeisMSCProvider (const IOObj &)
	Use any real user entry from '.omf' file. More...
	SeisMSCProvider (const MultiID &)
	Use any real user entry from '.omf' file. More...
virtual	~SeisMSCProvider ()
AdvanceState	advance ()
int	comparePos (const SeisMSCProvider &) const
	0 = equal; -1 means I need to next(), 1 the other More...
int	crlStepout (bool req) const
uiString	errMsg () const
int	estimatedNrTraces () const
	returns -1 when unknown More...
void	forceFloatData (bool yn)
SeisTrc *	get (const BinID &)
const SeisTrc *	get (const BinID &bid) const
SeisTrc *	get (int deltainl, int deltacrl)
const SeisTrc *	get (int i, int c) const
BinID	getPos () const
int	getTrcNr () const
int	inlStepout (bool req) const
bool	is2D () const
bool	prepareWork ()
	Opens the input data. Can still set stepouts etc. More...
SeisTrcReader &	reader ()
const SeisTrcReader &	reader () const
void	setSelData (Seis::SelData *)
	seldata becomes mine More...
void	setStepout (Array2D< bool > *mask)
void	setStepout (int, int, bool required)
void	setStepoutStep (int i, int c)

Protected Types
enum	ReadState { NeedStart , ReadOK , ReadAtEnd , ReadErr }

Protected Member Functions
bool	doAdvance ()
void	init ()
bool	isReqBoxFilled () const
int	readTrace (SeisTrc &)
bool	startWork ()

Protected Attributes
int	bufidx_
RowCol	desstepout_
uiString	errmsg_
int	estnrtrcs_
bool	intofloats_
int	pivotidx_
int	pivotidy_
SeisTrcReader &	rdr_
ReadState	readstate_
Array2D< bool > *	reqmask_
RowCol	reqstepout_
RowCol	stepoutstep_
ObjectSet< SeisTrcBuf >	tbufs_
int	trcidx_
bool	workstarted_

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.

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Member Enumeration Documentation

AdvanceState

enum SeisMSCProvider::AdvanceState

Enumerator
NewPosition
Buffering
EndReached
Error

ReadState

enum SeisMSCProvider::ReadState

protected

Enumerator
NeedStart
ReadOK
ReadAtEnd
ReadErr

Constructor & Destructor Documentation

SeisMSCProvider() [1/3]

SeisMSCProvider::SeisMSCProvider

(

const MultiID &

)

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

SeisMSCProvider() [2/3]

SeisMSCProvider::SeisMSCProvider

(

const IOObj &

)

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

SeisMSCProvider() [3/3]

SeisMSCProvider::SeisMSCProvider

(

const char *

fnm

)

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

~SeisMSCProvider()

virtual SeisMSCProvider::~SeisMSCProvider ( )

virtual

Member Function Documentation

advance()

AdvanceState SeisMSCProvider::advance

(

)

comparePos()

int SeisMSCProvider::comparePos

(

const SeisMSCProvider &

)

const

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

crlStepout()

int SeisMSCProvider::crlStepout ( bool  req ) const

inline

doAdvance()

bool SeisMSCProvider::doAdvance ( )

protected

errMsg()

uiString SeisMSCProvider::errMsg ( ) const

inline

estimatedNrTraces()

int SeisMSCProvider::estimatedNrTraces

(

)

const

returns -1 when unknown

forceFloatData()

void SeisMSCProvider::forceFloatData ( bool  yn )

inline

get() [1/4]

SeisTrc* SeisMSCProvider::get

(

const BinID &

)

get() [2/4]

const SeisTrc* SeisMSCProvider::get ( const BinID &  bid ) const

inline

get() [3/4]

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

get() [4/4]

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

inline

getPos()

BinID SeisMSCProvider::getPos

(

)

const

getTrcNr()

int SeisMSCProvider::getTrcNr

(

)

const

init()

void SeisMSCProvider::init ( )

protected

inlStepout()

int SeisMSCProvider::inlStepout ( bool  req ) const

inline

is2D()

bool SeisMSCProvider::is2D

(

)

const

isReqBoxFilled()

bool SeisMSCProvider::isReqBoxFilled ( ) const

protected

prepareWork()

bool SeisMSCProvider::prepareWork

(

)

Opens the input data. Can still set stepouts etc.

reader() [1/2]

SeisTrcReader& SeisMSCProvider::reader ( )

inline

reader() [2/2]

const SeisTrcReader& SeisMSCProvider::reader ( ) const

inline

readTrace()

int SeisMSCProvider::readTrace ( SeisTrc &  )

protected

setSelData()

void SeisMSCProvider::setSelData

(

Seis::SelData *

)

seldata becomes mine

setStepout() [1/2]

void SeisMSCProvider::setStepout

(

Array2D< bool > *

mask

)

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

setStepout() [2/2]

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

setStepoutStep()

void SeisMSCProvider::setStepoutStep ( int  i, int  c  )

inline

startWork()

bool SeisMSCProvider::startWork ( )

protected

Member Data Documentation

bufidx_

int SeisMSCProvider::bufidx_

protected

desstepout_

RowCol SeisMSCProvider::desstepout_

protected

errmsg_

uiString SeisMSCProvider::errmsg_

protected

estnrtrcs_

int SeisMSCProvider::estnrtrcs_

mutableprotected

intofloats_

bool SeisMSCProvider::intofloats_

protected

pivotidx_

int SeisMSCProvider::pivotidx_

protected

pivotidy_

int SeisMSCProvider::pivotidy_

protected

rdr_

SeisTrcReader& SeisMSCProvider::rdr_

protected

readstate_

ReadState SeisMSCProvider::readstate_

protected

reqmask_

Array2D<bool>* SeisMSCProvider::reqmask_

protected

reqstepout_

RowCol SeisMSCProvider::reqstepout_

protected

stepoutstep_

RowCol SeisMSCProvider::stepoutstep_

protected

tbufs_

ObjectSet<SeisTrcBuf> SeisMSCProvider::tbufs_

protected

trcidx_

int SeisMSCProvider::trcidx_

protected

workstarted_

bool SeisMSCProvider::workstarted_

protected