sents a Firmware-oriented system. Fig.5 shous a digital 
map printed by this system on DG4434 printer as a8 qui ck 
check-plot after edting. 
  
  
  
WILL 
A VAL 
TEK4103 
Color Terminal 
  
  
  
  
  
  
  
  
  
  
  
0630 
  
TEKA495/ 
Tabket 
Fig. 4 Configuration of an interactive graphics system on 
Wild Aviolyt 
  
  
  
  
  
  
  
  
6. CONCLUSION 
Using new techniques of interactive computer graphics, it 
is possible to have a built-in full-functional interactive 
graphics system on an analytical stereoplotter controlled 
only by a microcomputer to edit digital maps on-line. 
REFERENCES 
/1/ Chen, T.C.: An interactive color graphics system on 
analytical stereoplotter. The 4th Sympo- 
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