DCW-GMT is an enhancement to the original 1:1,000,000 scale vector basemap of the world available from the Princeton University Digital Map and Geospatial Information Center and from GeoCommunity at http://data.geocomm.com/readme/dcw/dcw.html. To read and process the data you should install GMT, the Generic Mapping Tools (port gmt5 or subport gmt6).

WWW: https://github.com/GenericMappingTools/dcw-gmt
