||FileBasisFactory reads projection basis from a text file
and cycles through the projects returning the active one
each time that the generateBasis method is called.
||GTBasisFactory is a simple factory that creates random projections.
||LittleTourFactory uses the stanard variable pair projections
used for a scatterplot matrix.
||PPHolesFactory extends GTBasisFactory to include a calculation
of the PPHoles index for each basis created by the factory.
||RecordingFactory is an abstract class that can be extended to
provide functionality that allows the basis to be recorde
to a file.
||Tour engine is the main implementation of the LimnEngine
||TourInterpolate provides routines used in interpolation between
||TourUtil contains basis utility routines for any tour method.