g the 
compo- [ I s € OREL 1 ———— — E 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
| 
| | | | 
| | Measurements data | | Initial information | | 5 
r photo- | 
stration | | 1 | 
net, that : ; | 
| | On stereocomparers| | On analog devices | By field 
It may 
methods | 
co- | 
f de- | | 
| Manual perforating | 
or in- 
ation |: 25 resenee of errors Computor .Presenee of errors. gory 
| Digital models | Appearance system | 
jating | | | 
d i : : 5 : 
S | Relief Planimetry Conventional Margin, grid, 
e es F | signs control points | 
inates | | : 
Engineer 
(m of | 
problems 
Eg can | 
ertical | 
second 
dinates | | Regular | | Irregular | | Structural | 
quantity 
nade the | 
Analytical Structural- 
craphs | | aen analytical 
ical | | 
of | 
ing 
| y Controlling tapes 
ermi- | 
ad | Automatic plotter 
| "Kartimat-III" 
|. me- | 
ion of | 
le the L 1543 
EN TT Co latio Oo 
ion. m n copy 
sure- 
Picture 1 
ations 
ctions. For approximation of relief there were adopted two kinds of functions, they are - the 
polynominal 9 9 
= + + + + + 
P (X,Y) a, X doy a,xy + a,x t ay ac 
and multiquadratic N 
. : : 2 : 2 1 /2 (2) 
= - + = 
Bidinzs. Hi E / es X) (Yj- Y)* - B/ 
EIN. ; RD : nD 1 
for- Hi - Hep* ECj/ Gi - X *(Yi- Yj) -*8/ E (3) 
j-1 
S eT where factors a, - a, and Cj, B are defined by solving the system of equations, drawn up for initial 
(node) points of laigidal relief models. 
BY —