Hyperman
for viewing surfaces in R^4. It features two mouse control paradigms,
stereoscopic viewing, control under a general reference frame, general
eye separations, and four-dimensional perspective.
Conformal
Viewer for viewing surfaces in S4. The 15-dimensional space of
conformal motions, implemented as quaternionic fractional linear
transformations of HP1, are bound to four mouspads representing
translations, rotations, homotheties and inversions.
Geomwidget for
a variety of geometry-specific features including coloring surfaces by
Gaussian curvature, mean curvature, and normal direction, cutting away
and flowing through surface slices, coloring boundaries and reflecting
in symmetry planes
A program for interactively examining the geometrical properties
of polyhedra that are being viewed with Geomview. A user can determine
the area of facets, the length of edges, the coordinates of a vertex
(or point), and the distance between points.