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The current version of the HEALPix package (2.00) offers the following new features:
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Distribution
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GNU General Public License (GPL)
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Installation
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more languages supported (F90, C++, IDL, Java & C)
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extended PDF and HTML documentation
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improved configuration script
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Fortran 90
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larger number of F90 compilers successfully tested, including several non-commercial ones (GNU Fortran 95 (gfortran), Intel Fortran Compiler (ifort) and g95)
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much faster spherical harmonics transform routines (see benchmarks)
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stable iterative map analysis algorithm, allowing extraction of a_lm with machine accuracy
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faster data I/O
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new routines, including a_lm alteration and rotation, and median filtering of sky maps
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option to use a shared memory parallel implementation (Open MP) of the Spherical Harmonics Transform operations and other CPU intensive calculations
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availability of distributed memory parallel implementation (MPI) of the Spherical Harmonics Transform operations
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large number of platforms supported - HEALPix now works under Operating
Systems of Sun, IBM, SGI, DEC, NEC, ..., as well as Linux, and Darwin (Mac OSX)
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C++
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most F90 facilities and routines are now also available in C++
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The code should run on any system where gcc of at least version 3.3 is installed. Any other standard-conforming C++ compiler should work as well.
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IDL
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faster data I/O
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reduction of memory usage
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new routines and new features in many routines
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java
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most pixel-related HEALPix routines are now available in java
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C
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a subset of HEALPix routines is now available in C
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