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The GridFFT process involves an input grid dataset, an output grid dataset and a number of intermediate datasets.
When using GridFFT, specify the following:
- Input grid dataset (and band number if not band 0)
- (Optional) Detrended, expanded and filled input dataset
- (Optional) Rolled-off input dataset
- (Optional) FFT-tranformed input dataset
- Output dataset (and precision if not IEEE4ByteReal)
Filenames can have paths attached. Paths can be relative or absolute.
The following diagram show the ways of specifying input and output datasets in interactive mode.
If you choose a toolbar button, menu option or browse [...] button, INTREPID displays an Open or Save As dialog box. Use the directory and file selector to locate the file you require. (See [Introduction to INTREPID (R02):Specifying input and output files] for information about specifying files).
You can also type the path and filename of the dataset in the text boxes in the Properties area.