F———— 
SQ 
  
  
a 
  
  
/ 
A 
i — 
rl 
al 
Fig. 8. Schematical diagram of the coordinate systems, elements of orientation ete. 
  
  
  
as used in this paper. 
  
37? cos? 9,  2sin?g, 
mL (378) 
COS ©» h sin g, sn 
Que 773) * 3$ M t gg (379) 
h cos ¢, 3M sin @, 
Qn = 34 Mt Ze, (380) 
: 3 h? l 
Que, = 8in29g, Sd 3p (381) 
h? 
se s IQ) 
Qs, — 9 bd? (382) 
For ¢, = 0 the expressions (374)—(382) will become identical with 
the expressions (174)—(181) above for the vertical case. 
Evidently, with the weight- and correlation numbers (374) — (382) the 
accuracy of aerial triangulation with convergent photographs can be 
studied in a similar way as concerning vertical photographs.