CFFT Class

This class allows for the application of predefined filters to data in an OASIS database. The system uses the Winograd algorithm to transform data in the spatial domain to the wavenumber or Fourier domain.

Inheritance Hierarchy

SystemObject
GeoEngine.Core.GXNetCHANDLE
Geosoft.Desktop.GXNetCFFT

Namespace: Geosoft.Desktop.GXNet
Assembly: geosoft.desktop.gxnet (in geosoft.desktop.gxnet.dll) Version: 2025.1.0.25

Syntax

C++

Copy

public class CFFT : CHANDLE

public class CFFT : CHANDLE

Public Class CFFT
	Inherits CHANDLE

Public Class CFFT
	Inherits CHANDLE

public ref class CFFT : public CHANDLE

public ref class CFFT : public CHANDLE

type CFFT =  
    class
        inherit CHANDLE
    end

type CFFT =  
    class
        inherit CHANDLE
    end

The CFFT type exposes the following members.

Methods

	Name	Description
	AddWhiteNoise	Add white noise to the power spectrum of an FFT object.
	AppDens	Appparent density filter
	AppSusc	Apparent susceptiblity filter
	BandPass	Bandpass filter (using low and high wavelength cutoffs)
	BWorth	Butterworth filter
	Contin	Upward/Downward continuation filter
	CosRoll	Cosine roll-off filter
	Create	Create a New FFT with detrend options.
	CreateEx	Create a New FFT with detrend and expansion options.
	CreateRef	Create FFT object with detrend options from reference (original) channel, but no FFT process.
	CreateRefEx	Create FFT object with detrend and expansion options from reference (original) channel, but no FFT process.
	Dispose	Releases the unmanaged resources used by the CFFT and optionally releases the managed resources (Overrides CHANDLEDispose(Boolean).)
	Gaus	Gaussian filter
	GetVV	Copies real and imaginary VV's to user VV's.
	HDrv	Horizontal derivative
	HighPass	High bandpass filter
	HInt	Horizontal integration
	Inverse	Inverse the FFT from wave number domain to space domain
	LowPass	Low bandpass filter
	RCFilter	RC filter
	RedPol	Reduction to magnetic pole
	rNyquist	Gets the Nyquist frequency (wavenumbers/sample unit).
	rSampIncr	Gets the original sample increment.
	rWaveIncr	Get the wave number increment.
	SetVV	Sets real and imaginary VVs in FFT.
	Spectrum	Calculates a power spectrum
	VDrv	Vertical derivative
	VInt	Vertical integration
	WriteSpectrum	Writes a power spectrum to a file

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Reference

Geosoft.Desktop.GXNet Namespace