Overview of HEAdas Libraries

The "heacore" directory contains source code for a number of libraries which are expected to be generally useful and mission-independent. These core libraries will automatically be built and available for linking by any or all of the tool packages (eg, heatools, swift) via the normal hmake build process. Some of these libraries are developed at the HEASARC, while others are external packages which are simply redistributed as part of HEAdas. Documentation for each library component may be found under the directory containing that component.

The software components of the directory "heacore" are:

• cfitsio: a standard FITS file I/O library developed at the HEASARC. http://heasarc.gsfc.nasa.gov/docs/software/fitsio CFITSIO home page

• pil: an IRAF-style parameter interface library, developed for the INTEGRAL mission at the Integral Science Data Center (ISDC). http://isdc.unige.ch the ISDC home page

• readline: a standard input library which supports shell-style tab completion and command recall functions. http://cnswww.cns.cwru.edu/php/chet/readline/rltop.html the READLINE home page

• atFunctions: library of attitude-related routines developed at the Institute of Space and Astronautical Science (ISAS). the ISAS home page

• coord/coordfits: additional routines for attitude, coordinate transformations, etc.

• Astro-FITS-CFITSIO: a CFITSIO Perl module, distributed by Pete Ratzlaff (CfA). http://hea-www.harvard.edu/ rpete/cfitsio the Astro::FITS::CFITSIO home page

• heainit: HEAdas Initialization functions callable at global scope

• heaio: HEAdas Input/output library

• heautils: Assorted HEAdas utilities

• heasp: HEAdas utilities for spectra and responses

More detailed documentation for the last four (HEAdas native) libraries follows below.