The Generic Mapping Tools, GMT, are an open source collection of tools for manipulating geographic and Cartesian data sets (including filtering, trend fitting, gridding, projecting, etc.) and producing PostScript illustrations ranging from simple x–y plots via contour maps to artificially illuminated surfaces and 3D perspective views. It is released under the GNU Lesser General Public License.
Beta-release of GMT/MATLAB API
This API lets MATLAB users access all of GMT's power
GMT 5.2.1 released Nov. 12, 2015
We are pleased to annouce the release of GMT version 5.2.1. This latest version combines almost 200 new features and improvements with all bug fixes applied to the 5.1.x series. See the documentation for specific features.