OverviewΒΆ
The following figure presents an overview over the classes of the support module and their relations.
Support module
The support module contains a number of functions and classes that are needed to support core functionnalities of GammaLib. Most of the classes are unrelated.
The GBilinear class provides support for bilinear interpolation in a table of values.
The GDaemon class implements the GammaLib daemon that is started
in the background and that collects GammaLib usage statistics and information
about the carbon footprint of the software. Usage statistics is written by the
GApplication class in a low level file situated at
$HOME/.gamma/statistics.csv. To avoid growing that this files becomes too
large the daemon creates high-level information from this file and writes them
in a more compact format to the file $HOME/.gamma/statistics.xml.
The GCsv class supports handling of column separated value tables.
The GExceptionHandler class implements an exception handler that is used through GammaLib for exception handling. The GException class derives from this handler, and implements a number of sub-classes that are actually thrown in exceptions.
The GFilename class supports handling of file names and FITS file extensions. All file names in GammaLib are passed through instances of this class.
The GNodeArray implements methods for linear interpolation between node values. This is the central interpolation class that is used in GammaLib.
The GRan class implements a random number generator that is widely used for Monte Carlo simulations.
The GTools.hpp module is not a class, but a collection of constants and functions that is widely used in GammaLib.
The abstract GUrl base class represents a unified location for some information that is independent of the media. The classes GUrlFile and GUrlString are derived from GUrl and implement a file storage and a string storage, respectively.