			    CDS Software Utilities

			  Last updated: 15 June 1994


These directories represent those parts of the CDS software effort that were
felt to be of most interest to the general SoHO community.  In all cases, the
software available here should be considered preliminary, or "test" software.

Some of the routines have been adapted from the Yohkoh software library, or
from the IDL Astronomy User's Library.  Others, in particular the "device" and
"image" directories, have been taken from the SERTS rocket program.

Each directory has an "aaareadme.txt" file, and sometimes an "aaachanges.txt"
file.  Also, some directories (e.g. fits, graphics, image) contain LaTeX
documents describing the software in that directory in more detail.

Of particular interest to the SoHO community should be the FITS binary table
software, and the software for handling TAI and UTC time values.

===============================================================================

As of 15 June 1994 the directories are:

array		- Allows arrays to be manipulated in various ways
c		- Contains C software for manipulating IDL procedure files
coord		- Routines for calculating solar positions
database	- Routines to create and access database tables
device		- Support for different graphics devices
fits		- Software for FITS and FITS binary tables
graphics	- Various user-utilities pertaining to graphics
image		- A device-independent system for displaying images
misc		- Miscellaneous routines
numerical	- Various numerical utilities
os		- Utilities for performing functions in an OS-independent way
string		- Utilities for manipulating IDL string variables
struct		- Utilities for manipulating IDL structure variables
tape		- Routines for Unix to emulate VMS IDL tape capabilities
time		- Procedures for converting between TAI and UTC time formats
user		- Utilities pertaining to user-interfaces
widget		- Utilities pertaining to widgets
