ES 
  
B 
E 
| 
Ce 
EE 
fer er re STE 
  
  
  
  
  
1921 
J 
Fig. 4: Part of a scanned and binarised cadastral map 
of scale 1 : 1000 
  
  
a 
  
  
    
  
7913/2 
1921 
m 
  
  
  
Fig. 6: Image graph consisting of attributed arcs and 
nodes constructed by thinning of the cleaned image, li- 
ne tracking and a graph-building process 
  
  
  
  
  
  
Fig. 8: Six parcel areas 
584 
  
  
  
  
  
1921 
= 
  
  
  
Fig. 5: Result after elimination of disturbances and the 
screen symbolising the buildings. 
| 
rrr UA 
  
Ter 074 
—_— — 
  
  
  
Fig. 7: Polygon 0.35mm (thick lines of the line dra- 
wing) used to guide the search of the boundary stones 
  
  
  
  
  
  
  
Fig. 9: Twelve general areas