nviz - A GRASS Visualization Program
nviz is a GRASS module-in-progress which allows users
to realistically render multiple surfaces in a 3D space, optionally
using thematic coloring, draping GRASS vector files over the surfaces,
and displaying GRASS site files either draped on the surfaces or
as 3D point locations.
We are currently in the process of rewriting the tcl/tk interface to make
it easier for programmers to add functionality, and porting the
graphics from IRIS GL to OpenGL.
Draft Tutorial
Features - Slides from Visualization 97 Conference
Animations.
Since each surface often consists of hundreds of thousands of
polygons, with render times of several seconds to a minute,
we represent the surfaces with wire meshes as a rough
approximation when a user is
Snapshots.
These thumbnail images are links to full size screen dumps
showing some of the multiple surface features of nviz.
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