50 
  
THE COMPUTER-ASSISTED DZT 90x120/RGS STEREC- 
| 4 PLOTTING SYSTEM FROM JENA 
|| Lothar Beier, Dipl.-Ing. 
A Volker Karnahl, Dipl.-Ing, 
Werner Marckwardt, Dr. (Eng.) 
VEB Carl Zeiss JENA 
GDR 
Commission II/1 
4. introduction 
The complete automation of work processes associated with 
intellectual work of man cannot be achieved at present 
despite the permanently increasing learning capabilities 
ithe automation systems. In such processes the aim of 
automation is to prepare occurring routine tasks by suitable 
algorithms and to leave decision finc ing largely to man, In 
these cases the term of computer-aided system is used, 
Especially the soncants of computer-aided design (CAD) and 
~~ computer-aided manufacturing (CAM) have become well known. 
p Also stereoplott ing is & working process, where image inter- 
+ pretation cannot yet be aut omated by the stereooperator, 
a1thourzh first approaches to a solution have been made in 
worldwide research projects (image correlation, pattern re- 
cognition). Computer-aided stereopl lotting (OASP): is there- 
fore at present an important trend towards increasing work- 
= ing productivity in stereoplotting. 
N 2. Design of the computer-aided stereoplotting system of 
dich VEB Carl Zeiss JENA 
- 1 The basic principle of computer-aided stereoplotting invoives 
Le the preprocessing of measured olin (model coordinates) ob- 
| tained in the stereoplotting machine, For this purpose a mini- 
or microcomputer is arranged between plotter and plotting table, 
À microcomputer with two diskette dures and a Robotron K 891 
p^ 
terminal are used in the computer-aided stereoplotting system 
of VEB Carl Zeiss JENA (Figs. 1 and 23. The connection of the 
computer t the inoremental encoders in the model space of 
the stereoplotter, to the additional controls (foot switoh, 
functional keyboard) and to the peripheral output devices (di- 
gital plotting table, magnetio tape unit, printer) is realized 
via a counter interface which is housed in the electronic ca- 
binet of the digital plotting tab 1 
       
  
  
  
m = ++ 4 A > 
e: e, This counter inter! 
has been des igned as a modular mi Ç 
fi M E m -* 
The program for the microcomputer 
+ B de-= = , 1 
tes of the plotting computer and Load | 
I. eu sir 35 1 d- - i mi x 7 
memory aiter Pwitebdas on the system, The unter 
solves ihe following tasks: 
1 p Hi 33 — 7 
- take-over of the coordinate va 
connected with the incremental 
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