Tuesday, August 4, 2009

DRG (Digital Raster Graphic)

A DRG is a scanned image of a USGS topographic map. The map is georeferenced to the earth and can be used for navigation purposes.

Image Source: http://egsc.usgs.gov/isb/pubs/factsheets/fs08801.graphics/drg.jpg

No comments:

Post a Comment