p.s., Re: Network Data Visualization

On Fri, 18 Apr 2003, Bill Hibbard wrote:

> You can construct a network as a UnionSet of GriddedSets
> with manifold dimension = 1. You must assign spatial
> locations to the vertices of your network, which can
> be in 2-D (Gridded2DSet) or 3-D (Gridded3DSet).

See DelaunayTest.java, Rivers.java and VisuTraj.java in
visad/examples for examples of constructing UnionSets of
GriddedSets.