(à 
3.5.2.2 
3.5.2.3 
By computing the transformation in this 
way the as-built photogrammetric data are 
fit to the design data such that there is a 
perfect match at the keel point, the re- 
maining shell bottom targets best-fit the 
design base line and all targets best-fit 
the plane of the transverse section. De- 
viations of all points from the design values 
are produced at the end of the computer run, 
as are the transformed as-built coordinates. 
Half Breadths and Deck Heights 
  
Since the transformation described above 
brings the as-built data into the ship's 
coordinate system, the resulting coordinates 
are really offsets, elevations and deviations 
from the transverse plane. Hence, no further 
calculations are needed to obtain half-breadths 
and deck heights. These data are, however, 
portrayed on a sketch to allow more rapid 
assessment by the shipbuilder; see Figures 10 
and. ll. 
Planarity of the Cut 
Again as a result of the way in which the 
transformation is performed, deviations of the 
points from a true transverse plane are 
automatically available. It is these deviations 
which portray how neat the steel has been 
trimmed... Here too, as shown in Figure 12, a 
pictorial presentation is used to aid the 
shipbuilder's analyses. 
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