 | 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 HierarchyNamespace: Geosoft.Desktop.GXNet
Assembly: geosoft.desktop.gxnet (in geosoft.desktop.gxnet.dll)
SyntaxThe CFFT type exposes the following members.
Methods| Name | Description | |
|---|---|---|
  | 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 |
See Also