IMPORTANT: GMT website has moved¶
Please visit our new GMT website for all GMT-related tasks.
IMPORTANT: GMT development has moved to Github¶
GMT development has moved to the Github repository GenericMappingTools/gmt starting in August 2018. This site will remain operational for the near future but any code contributions or checkouts should be done from Github instead. We appreciate your patience as we transition to this new platform and hope that it will make contributing to GMT easier in the future.
New issues should be reported at https://github.com/GenericMappingTools/gmt/issues. You'll need to register for a free Github account, if you don't have one already. Registration on this wiki does not work due to recaptcha1 problems.
IMPORTANT: Registration for the forum is broken¶
Currently, new users users will not be able to create an account because of a problem with the recaptcha system. We're aware of the issue but it cannot be easily solved. Instead, we've created a new and improved forum solution: https://forum.generic-mapping-tools.org. Please post questions there instead. You can create a new account or register using your GitHub account.
What is GMT?¶
The GMT World Domination¶
Considering its flexibility at no charge, people worldwide are using GMT in their work and at home. Most users of GMT are Earth, ocean or planetary scientists, but there are apparently no limits to the kind of applications that may benefit from GMT: We know GMT is used in medical research, engineering, physics, mathematics, social and biological sciences, and by geographers, fisheries institutes, oil companies, a wide range of government agencies, and last but not least innumerable hobbyists.
The map above illustrates the spreading of the current GMT release around the world based on web traffic. Each colored circle in the map above represents a 15x15 arc minute block with one or more users who downloaded the latest GMT release. Download geolocation is based on MaxMind's freely available GeoLite data.