not necessarily trivial, involved manipulation 
of the coordinates. "Indeed, a fairly extensive 
set of data manipulation programs are desirable 
if the photogrammetrist is to report his results 
in a meaningful fashion. While the shipbuilder 
can extract whatever information he desires given 
the Xs,Ÿ 
is 3124 coordinates, this is most often more 
readily accomplished by the photogrammetrist 
equipped with the necessary computer programs. 
Calculations for Each Ship-Half 
  
3.5.2.1 Transformation of Coordinate System 
  
The coordinate system in which the 
photogrammetric solution is performed is 
only approximately aligned with the ship's 
coordinate system. Hence, the first step 
in the supplemental data processing sequence 
is to translate and rotate the photogrammetric 
system into the ship's. This is done by 
means of a rigid body transformation which 
allows three translations (X,Y and Z) and 
three rotations of the photogrammetric 
system. A scale factor is not included since 
the photogrammetric coordinate system is 
already at true scale (see paragraphs 2.4 and 
2.5.3). 
Calculation of the transformation requires 
at least three non-colinear points whose 
X.Y,2 coordinates are known in both coordinate 
systems. In the ship's system, design 
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