The package contains conversion of basic utilities used for pixel manipulation
in the HEALPix from FORTRAN90 to Java. The package consists of one class PixTools and supporting methods and the vecmath.jar library. The package permits to create HEALPix maps, query existing maps providing a list of neighboring pixels selected by various requarements.
All methods of the class are thread safe. This class can be used as a singleton, the singleton instance being available from the {@link #getInstance} method. For compatibility with previous versions however it is possible to construct new instances using the default constructor.