John,
A Gridded3DSet can define a 3-D shape on a 2-D manifold. Typically, the
points in the 2-D manifold would map to (Latitude, Longitude, Z) points
in 3-D space and the points would have constant delta-Latitude and
delta-Longitude intervals between them. The 2-D manifold has rectangular
cell topology and can be thought of as a conformal mapping of the
(Latitude, Longitude) polar coordinate space.
The Gridded3DSet constructor to use is
Gridded3DSet(MathType type, float[][] samples, int lengthX, int lengthY)
Regards,
Steve Emmerson <http://www.unidata.ucar.edu>