- 10 
TABLE IV 
Example of Reduction of Data to Photo-Co-ordinates 
Pla 
Ref. 
te Rot 
L 
ation 
R 
X 
0 
y o 
*1 
Y 1 
x i 
y i 
X 2 
Y 2 
X 2 
У 2 
0 02 
5122 
5OOO 
2OI5I 
20117 
231 
121 
21596 
1749Q 
I4O 
I3O 
I7O79 
15976 
sin 0 L - (5122 - 500C) X lCf 4 - .0122 
sin 0 R - (5OOO - 5OOO) X Ю” 4 = 0 
COS © L + 
sin ©£ 
X x - 200 
*s 
30.034“ 
-sin ©_ 
— «ь 
cos © 
L 
Y - 200 
-79.370 
Reseau Reference » 
Integral part of 30.0^4 + 20.4* 
23 
10 
Я 
" " " -79.37О + 20.4 
12 
«— 
—1 —IO - 1 
— 
l— —* 
10 (23 - 20) + reseau calibration 
correction 
10 (12 - 2o) + " " '• 
+ .001 
COS 0j_ + sin 
-sin 
cos 6. 
Refraction corrections + Lens Distortion Correction 
(computed from the relevant data fed into the computer) 
X. - X 
1 о 
i£i “ y oj 
-.003 
+.007 
31.411 
-82.635 
L.H. Photo Co-ordinates 
31.408 
-82.628 
cos 6-, + sin 0_ 
К К 
- sin ©. 
R 
cos ©. 
X 2 - 200 
Y 2 - 200 
-60.0000 
-70.0000 
Reseau Reference 
SB 
Integral part of -60.0000 + 20.4* 
“14" 
10 
« 
" " " -7O.OOOO + 20.4. 
13 
L 10 J 
_ _ 
10 (14 . 
20) + reseau calibration 
+ .001 
cos © R + sin © 
x ? “ X o 
“63.072“ 
correction 
С О 
я 
10 (15. 
20) + » " " 
-sin © R cos © R 
£2 ’ y o 
-74.140 
Refraction Correction + Lens distortion correction 
+ .006 
+ .004 
+ 
1 u00 L 
+ .004 
R.H. Photo Co-ordinates 
-63.О62 
-74.129 
20.4 and not 20,0 is added so that the total will exceed the required number and 
all figures after the decimal point can. then be omitted. 
(mm) 
(cms) 
(mm) 
(mm) 
(mm) 
(mm) 
(eras) 
(ram) 
(mm) 
(mm)