EASY PC GRAPHICS

Easy PC Graphics (GFI) is a graphical plot program that permits data to be
easily and flexibly plotted. Data is input in a standard format which
allows easy data entry and evaluation. Multiple dependent axes are also
supported. The program may either be run in a stand alone mode or be
embedded in the user's own software.

Automatic scaling is built in for several logarithmic and decibel scales.
New scales are easily incorporated into the code through the use of
object-oriented programming techniques. For the autoscale routines and the
actual plotting code, data is not retrieved directly from a file, but a
"method" delivers the data, performing scaling as appropriate. Each object
(variable) has state information which selects its own scaling.

GFI is written in Turbo Pascal version 6.0 for IBM PC compatible computers
running MS-DOS. The source code will only compile properly with the Turbo
Pascal v. 6.0 or v. 7.0 compilers; however, an executable is provided on
the distribution disk. This executable requires at least 64K of RAM and
DOS 3.1 or higher, as well as an HP LaserJet printer to print output
plots. The standard distribution medium for this program is one 5.25 inch
360K MS-DOS format diskette. The contents of the diskette are compressed
using the PKWARE archiving tools. The utility to unarchive the files,
PKUNZIP.EXE, is included. An electronic copy of the documentation is
provided on the distribution medium in ASCII format.

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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