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GMT programs may get operational parameters from several places:
- 1.
- Supplied command line options/switches or program defaults.
- 2.
- Short-hand notation to select previously used option arguments
(stored in .gmtcommands).
- 3.
- Implicitly using GMT defaults for a variety of parameters
(stored in .gmtdefaults).
- 4.
- May use hidden support data like coastlines or PostScript patterns.
Paul Wessel
1999-07-01