DOTE CS mn, e tmm tme 5 
Reducing the map scale by 
tude becomes 2.5 meter (S 
a fa 
z 6. 
low pass filter is 1.5.1973. 
ctor,5, the minimum discernible ampli- 
25 m?) and the frequency limit for the 
The resulting generalized contour line in the original scale and the 
final scale are also shown. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
S (n^) 
10? 
102 f= 
1:5 000 
10 fe x 
| 
| 
| 
| 
1 : | ; 
| 
| 
— d 
| 
107 + î 
| 
| | 
1:5 000 
> | | 
1072 
EE 
| | 
| | 
107 : 
| I 
| | 
| I 
| I 
1074 ı | 
1:25 000 1074 10? 1072 
Figure 10. Generalization of contour and scale reduction. 
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