308 
  
2^0v& 
$-QUEST 51x 9«&A[T 10 rly POSITION 
yr ^ODR v. 0A 3939771 99 3019100 09 x 
€v&nf "EOUESTEO 
Fig 
Original data measured with the analytical plotter,Kern DSR-1 
Content:topography,streets,manholes of the sewerage-systems. 
20v& 
$-AEQUEST F (ND 8-&AIT TO Ps IT! 
IwPut "ODE L 01 29230909 79 3019017 14 2 
EVENS AREQUESTEO 
Fig.3 : 
Coordinated points,terrestrial surveys - direct input