Author: Eugene J.M. Lynch, Xerox Corporation, El Segundo, CA

Operating System: OS/8 Source Language: FORTRAN IV, PAL-8/

PAL III Memory Required: For Version B: 2198 words, for Version C:

2288 words Special Hardware Required: For Version B: Tektronix 4010

series (or emulator) Console Terminal, for Version C: Tektronix 4010

series (or emulator) Serial (KL8) Interface Other Software Required:

FORTRAN IV Plotter Routines Keywords: Graphics; Tektronix

Abstract: The programming system presented here enables a Tektronix

4010 series Graphic Terminal, or a terminal which emulates it, to be used

as the plotting device with a PDP-8/12 family computer executing an

OS/8 FORTRAN IV program which uses the Plotting Subroutines. The

Graphic Input capability of the terminal is used to return the coordinates

of designated display points to the program, and to enable interactive

annotation of a screen display from the terminal keyboard. If a Tektronix

Hard Copy Unit is attached to the terminal it may be used under program,

control.

A file can be designated to receive all of the information necessary

to reproduce screen displays on other graphic devices. Displays are saved

selectively in this file, from which they may be reproduced on an

incremental plotter or other graphic device on the host computer, or

transmitted for reproduction elsewhere.

Version B corrects minor errors in Version A, adds the Graphic

Input routine and a convenience routine for emulator users, amends

subroutine entries so that illegal calls are handled in a kindly manner and

requires a bit less memory.

Version C has all the features of Version B and allows the console

terminal to be used as both the plotting and as the alphanumeric

FORTRAN terminal output device. This version may also be used an a

FORTRAN program running under OS/8 in the RTS/8 background.

Note: Changes and Improvements: Version B: Use of Console as graphic

device. Use with RTS-8. Both Versions: Addition of ASCII character

transmission and Graphic Input routines error correction.

Media Service Charge Code: Manual (EC), DECtape (HA), Floppy

Diskette (KA) Format: OS/8

Catalog: June 1985