Deprecated: please see new documentation site.

GMT is a suite of tools called the Generic Mapping Tools. It is an open source collection of ~60 tools for manipulating geographic and Cartesian data sets (including filtering, trend fitting, gridding, projecting, etc.) and producing Encapsulated PostScript File (EPS) illustrations ranging from simple x-y plots via contour maps to artificially illuminated surfaces and 3-D perspective views.

On-line documentation, including manuals and tutorials, is available.

Users may direct questions to

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