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Terragen world file
File type: Graphics file
Files with tgd suffix can be found as projects made and saved using Terragen 3D landscape rendering tool.
Found 3 different file type records with the same tgd filename suffix.
File type category:
Graphics file
Date updated: November 8, 2016
File extension tgd is most most likely best known for its use in Terragen, landscape animation tool that allows users rendering and animating of realistic natural environments.
It seems that .tgd files act as projects for Terragen and may contain all kind of data and objects. Seems like newer file type that replaced some previously used format.
Use Terragen to open and continue to work on .tgd project.
The only way to export .tgd files is in Terragen.
File type category:
Various data file
Date updated: August 31, 2018
Record marked as obsolete and not updated for a long time.
The tgd file extension is also related to the Digital Tachograph technology which is similar in appearance to the analogue tachograph. The system comprises a vehicle unit, a speed/distance sensor, and tachograph cards.
File type category:
Various data file
Date updated: January 11, 2019
Record marked as obsolete and not updated for a long time.
The tgd file extension is associated with the Nimbus 7 SAMS data file format used to store temperature data from Nimbus 7 U.S. robotic spacecraft used for meteorological research and development.