6.4 GMT

GMT (Generic Mapping Tools) is an open source collection of more than 60 tools for manipulating Geographic and Cartesian data sets. It can produce Encapsulated Postscript File illustrations ranging from simple x-y plots, via contour maps, to artificially illuminated surfaces and 3D perspectives views. OpendTect supports an open source plugin that uses GMT tools to create scaled maps.

For more details please visit the official GMT website.