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APPENDIX 1 
Geometrical adjustment of the data to a basic mapping material 
using a polynomial transformation of a rigorous type. 
Considering an image and the respective map sheet as two plane 
spaces, the correspondence between the coordinates of the homologous points 
may be written under the form: 
(x,y) 
X = 
f 3 (x,y) 
f ? 0,y) 
Y = (1) 
f 3 (x,y) 
where: Y,Y - coordinates in the map plane 
x,y - coordinates in the image plane 
The functions f^^y) ... f 3 (x,y) are of polynomial type of the 
first degree, their coefficients being determined by applying the method of 
the least squares, using a sufficiently great number of pairs of homologous 
points.