GammaLib

Hi,

I load all my fits files via python calls:

run = GCTAObservation()
run.load( fname )
run.id( 'blah#####' )
rsp = GCTAResponseIrf()
rsp.load_aeff(   fname )
rsp.load_psf(    fname )
rsp.load_edisp( fname )
rsp.apply_edisp( True )
rsp.load_background( fname )
run.response( rsp )

But I like to keep my fits files stored in a tarball, both to keep multiple run-parts together (when I’ve broken a single run into chunks), and also to compress the data (5MB→500KB per run) for easier storage and file-transferring. However, the only way right now to load these fits files is to first extract the tarball to a temporary directory, then load the fits files from those temporary filenames.

A set of load( FILE * handle ) functions for the GCTA event lists and irfs may accomplish this, though may also require modifying the existing ::load() functions.