SoSeismic Class Reference

Seismic attribute functions for buffers More...

#include <Inventor/algorithms/SoSeismic.h>

Public Member Functions
	SoSeismic ()
	Constructor.
virtual	~SoSeismic ()
	Destructor.
virtual int	computeInstPhase (SoBufferObject *sourceBufferObject, SoBufferObject *targetBufferObject, int traceSize, int numTrace)
	Compute instantaneous phase attribute on a set of seismic traces.
virtual int	computeEnvelope (SoBufferObject *sourceBufferObject, SoBufferObject *targetBufferObject, int traceSize, int numTrace)
	Compute envelope (amplitude) attribute on a set of seismic traces.
virtual int	computeHilbert (SoBufferObject *sourceBufferObject, SoBufferObject *targetBufferObject, int width, int height)
	Compute Hilbert transform on a set of seismic traces.
int	computeInstPhase (SoCpuBufferObject *sourceBufferObject, SoCpuBufferObject *targetBufferObject, int traceSize, int numTrace)
	Compute instantaneous phase attribute on a set of seismic traces.
int	computeEnvelope (SoCpuBufferObject *sourceBufferObject, SoCpuBufferObject *targetBufferObject, int traceSize, int numTrace)
	Compute envelope (amplitude) attribute on a set of seismic traces.
int	computeHilbert (SoCpuBufferObject *sourceBufferObject, SoCpuBufferObject *targetBufferObject, int width, int height)
	Compute Hilbert transform on a set of seismic traces.

Detailed Description

Seismic attribute functions for buffers

The Seismic module provides functions for computing seismic attributes.

Examples:

SEE ALSO

SoAlgorithms, SoArithmetic, SoConversion, SoConvolution, SoDataExtract

Definition at line 51 of file SoSeismic.h.

Constructor & Destructor Documentation

SoSeismic()

SoSeismic::SoSeismic

(

)

Constructor.

~SoSeismic()

virtual SoSeismic::~SoSeismic ( )

virtual

Destructor.

Member Function Documentation

computeEnvelope() [1/2]

virtual int SoSeismic::computeEnvelope ( SoBufferObject *  sourceBufferObject, SoBufferObject *  targetBufferObject, int  traceSize, int  numTrace  )

virtual

Compute envelope (amplitude) attribute on a set of seismic traces.

amp(t) = sqrt( re^2(t) + im^2(t))

• This function can be redefined to support a different type of SoBufferObject.
• By default the SoCpuBufferObject CPU version will be used.
• Data stored in buffers must be of type float.

Parameters

sourceBufferObject	Should contain the real part of the complex trace (original trace data).
targetBufferObject	should contain the imaginary part of the complex trace (Hilbert transform of trace data). Note: targetBufferObject will be overwritten with the result values.
traceSize	Number of samples in each trace (must be same for all traces).
numTrace	Number of traces.

computeEnvelope() [2/2]

int SoSeismic::computeEnvelope	(	SoCpuBufferObject *	sourceBufferObject,
		SoCpuBufferObject *	targetBufferObject,
		int	traceSize,
		int	numTrace
	)

Compute envelope (amplitude) attribute on a set of seismic traces.

• This function handles SoCpuBufferObject input output type only.
• Data stored in buffers must be of type float.

computeHilbert() [1/2]

virtual int SoSeismic::computeHilbert ( SoBufferObject *  sourceBufferObject, SoBufferObject *  targetBufferObject, int  width, int  height  )

virtual

Compute Hilbert transform on a set of seismic traces.

The Hilbert transform is computed by convolving sourceBufferObject with a windowed (approximate) version of the ideal Hilbert transformer.

• This function can be redefined to support a different type of SoBufferObject.
• By default the SoCpuBufferObject CPU version will be used.
• Data stored in buffers must be of type float.

computeHilbert() [2/2]

int SoSeismic::computeHilbert	(	SoCpuBufferObject *	sourceBufferObject,
		SoCpuBufferObject *	targetBufferObject,
		int	width,
		int	height
	)

Compute Hilbert transform on a set of seismic traces.

• This function handles SoCpuBufferObject input output type only.
• Data stored in buffers must be of type float.

computeInstPhase() [1/2]

virtual int SoSeismic::computeInstPhase ( SoBufferObject *  sourceBufferObject, SoBufferObject *  targetBufferObject, int  traceSize, int  numTrace  )

virtual

Compute instantaneous phase attribute on a set of seismic traces.

phase(t) = arctan( im(t)/re(t))

• This function can be redefined to support a different type of SoBufferObject.
• By default the SoCpuBufferObject CPU version will be used.
• Data stored in buffers must be of type float.

Parameters

sourceBufferObject	Should contain the real part of the complex trace (original trace data).
targetBufferObject	should contain the imaginary part of the complex trace (Hilbert transform of trace data). Note: targetBufferObject will be overwritten with the result values.
traceSize	Number of samples in each trace (must be same for all traces).
numTrace	Number of traces.

computeInstPhase() [2/2]

int SoSeismic::computeInstPhase	(	SoCpuBufferObject *	sourceBufferObject,
		SoCpuBufferObject *	targetBufferObject,
		int	traceSize,
		int	numTrace
	)

Compute instantaneous phase attribute on a set of seismic traces.

• This function handles SoCpuBufferObject input output type only.
• Data stored in buffers must be of type float.

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

• Inventor/algorithms/SoSeismic.h