Abstract: The g3DGMV program was designed as a free viewer for Digital Elevation Model
(DEM ) and Digital Line Graphs (DLG ) maps. Both of these formats are available
from various locations on the web. These maps are rendered by g3DGMV as 3D
images that can be manipulated by the user and view from different angles.

In addition g3DGMV can read maps that have been saved as ... bitmaps (gif ,png,
jpeg ,xpm). Because these formats do not contain elevation information they are
viewable only in 2D mode.

The program contains many utilitys that enable the user to add his/her own
location information to these maps. These tools can be used to mark a favorite
camp site or highlight the best route to some location.

g3DGMV is an Open Source Free Software program, primarily designed for use with
X Window System. It is being developed using the GTK+ and Gnome tools .

[Summary extracted from http://g3dgmv.sourceforge.net/index.html.]