Saving FFT of input grid dataset

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GridFFT saves the spectral domain-transformed grid in a grid datsaset, to use as input for the filtering operation. After use, GridFFT normally deletes this grid. It is sometimes useful to keep this grid. See [INTREPID spectral domain operations reference (R14):Saving pre-FFT and FFT grid processing products for later reference] for details.

Interactive

Saving FFT of input grid dataset--interactive

To enable saving the FFT of the input grid and specify a filename

1. Display the Input Grid Dataset Properties area (click Input Grid Dataset in the Filtering Process list).
   
   
2. Tick the Save FFT of Input Grid? checkbox.
3. The default filename for the FFT grid is input grid name with FFT appended. If you want a different name, specify it using:
   • FFT of Input Grid text box
   • FFT of Input Grid browse button [...]

Task files

Saving FFT of input grid dataset--task files

To keep the spectral domain-transformed grid, use the FftGridName keyword and assign a filename for the grid. Example:

  FftGridName = dargo_fft

If you leave out this statement, GridFFT deletes the spectral domain input grid during the post-filtering file clean-up.