» 
> 
test area 
stereosco 
lel. 
  
  
   
Ground Control Points 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
gonometry| 
  
  
  
Country 1 Orge 5el 5.218 5.21b | 3.210 5.22 5.23 
No. 
— 
Austria | 1 4-5 Yes No Yes Yes 1:1 000 - m= 
planimetry max. 5 cm 
vertical max. - 10cm 
1:10 OO0 = m= 
planimetry max. 230 cm 
vertical max. | -30 cm 
Belgium | 1 8 No No Yes Yea x x 5 em 
+ 
= «5 cu 
y 5 
Brazil 1 At Yes Yes Yes Yas Graph.accur.of 90% of all 
least points max. + 0,5 mm 
4 
Bulgarie| 1 4 70% No 30% Yes Horizontal: M 
trigonom 15 000° (m) 
Ground control points: 
5 000) 
Burma 1 4 Yes No Yes Yes For smell scales — 30m 
Cambodge| 1 4 Trian- Yes No Yes 1:20 O00 and 1:50 O00 
gulation planimetry + O,2mm in the map scale 
and gra- vertical + 37% 
vimetric 
levelling 
Canada 1 | Yes No Yes Yes 1:25 000 
Xy 5 6,1 m 
Czecho- | 1 5 Yes No Yes Yes Horizontal: m =- O,05mm in the map 
Slovakia Mostly Some t- P + scale 
by inter4 times Vertical : m -0,l10m for 
Section, AAT 
parallac- 13000 and 1:2000 
tic poly4 m e 0,20m for 1:5 000