Organisation

GILDAS consists of five major parts :

• The documentations, a set of PostScript files. An HTML documentation is also available.
• Dedicated utilities, which are programs using the SIC (Sympathetic Interpretor of Commands) user-friendly interface. Each utility normally has its own manual, accessible through the general documentation system.
  • GreG an all purpose 1-D and 2-D graphic program
  • CLASS (Continuum and Line Analysis Single-dish Software), for single-dish data processing and CFITS, a FITS to CLASS format translator.
  • ASTRO, an astronomical tool, very useful to prepare an observing session, or for amateur astronomy...
  • CLIC (Continuum and Line Interferometric Calibration), to calibrate interferometer data from Plateau de Bure.

   

• Dedicated small programs to perform non interactive time consuming processing : smoothing, transpositions, fitting, etc... These programs will be called ``Tasks''. They are not intended for interactive use (although you may do it if you are an expert), but require instead a monitor program to activate them.

• Two monitor programs named respectively VECTOR and GRAPHIC,
  • VECTOR is a SIC based program which can submit or run in parallel any GILDAS task through the use of its RUN  and SUBMIT  commands. By using SIC vector computing facilities, it also allows direct operations on images.
  • GRAPHIC, a superset of GreG and VECTOR, which in addition allows access to some astronomical catalogs.
  GRAPHIC includes the VECTOR program, and hence can run or submit any Task.

• GFITS is a FITS translator for exchange of data with the outer world. CLASS and CLIC have a direct interface with the GILDAS Image format.

• Additional applications programs, such as MAPPING (a deconvolution tool), which includes GRAPHIC as a subset.