next up previous contents index
Next: Output data Up: The GMT environment: What Previous: Input data

Job Control

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
1999-12-03