GRAPHICS LIBRARY

The NASA Device Independent Graphics Library, NASADIG, can be used with
many computer-based engineering and management applications. The library
gives the user the opportunity to translate data into effective graphic
displays for presentation. The software offers many features which allow
the user flexibility in creating graphics. These include two-dimensional
plots, subplot projections in 3D-space, surface contour line plots, and
surface contour color-shaded plots. Routines for three-dimensional
plotting, wireframe surface plots, surface plots with hidden line removal,
and surface contour line plots are provided. Other features include polar
and spherical coordinate plotting, world map plotting utilizing either
cylindrical equidistant or Lambert equal area projection, plot
translation, plot rotation, plot blowup, splines and polynomial
interpolation, area blanking control, multiple log/linear axes, legends
and text control, curve thickness control, and multiple text fonts (18
regular, 4 bold).

NASADIG is written in FORTRAN and is available for several platforms.
NASADIG 5.7 is available for DEC VAX series computers running VMS 5.0 or
later, Cray X-MP and Y-MP series computers running UNICOS, and Amdahl 5990
mainframe computers running UTS. NASADIG 5.1 is available for UNIX-based
operating systems. The UNIX version has been successfully implemented on
Sun4 series computers running SunOS, SGI IRIS computers running IRIX,
Hewlett Packard 9000 computers running HP-UX, and Convex computers running
Convex OS. With minor modification, the UNIX source code can be ported to
other platforms including IBM PC/AT series computers and compatibles.
NASADIG is also available bundled with TRASYS, the Thermal Radiation
Analysis System.

NASA's Software Technology Transfer Center
COSMIC, The University of Georgia
382 East Broad St, Athens, GA 30602-4272
(706) 542-3265;  Fax: (706) 542-4807
Internet Email: service@cossack.cosmic.uga.edu

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