t. 
  
   
  
]mm 
A0 
Fig. 7. Errors in PMRT-strip-triangulations with 10 templets having co-working 
direction errors, when the control-points are changed. 
with multiplex-triangulation with grid-diapositives. The distance, bet- 
ween the controlpoints was 1 350 mm. The following results and obser- 
vations might be of interest. 
First it was assumed that the photography was executed carefully 
with a standard direction error in the templets of + 1,°5 and with no 
systematical inclination of the camera. This is equal to the direction 
errors in the principle point of a photo with the nadirdistance 2° and 
with the average inclination of the radials 10 0/oo. A rigorous adjusted 
Fig. 8. Errors obtained in four Multiplexlgrid-triangulations made by two diffe- 
rent operators. The same grids in the same positions were used. Hherefore the 
contradictory results can not be caused by grid-deformations. 
  
  
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
= 1 ^ 1 ai , A21 AT / 
Imm 1mm I mm Imm 
al AQ ^ — 
| e 
  
  
  
^9 
/ Li 
-— 
La 
e eS TS 
= ~ 
-— 
^. 
^0 
  
49 
40 
VA 
FE) 
FA 
Zi 
i 
LAN 
TEN 
VAN 
4 
  
49 
40 
  
49 
. 
à 
« . 
4 - 
4 
4 a 
4 A 
i * 
AQ 2m