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3. Specifically the plotter offers automation possibilities to solve 
the following standard problems more efficiently: 
3.1 aerial triangulation as a 
measurement procedure 
3.2 plotting as a digital data 
acquisition procedure 
3.3 terrestrial plotting because of the 
lack of a present instrument to evaluate 
simple almost amateur-type photography which 
would enlarge the present use of 
phdtogrammetric methods in other fields 
A.3 Use of the AP/C as aerial triangulator * • 
It can be assumed that today most agencies using photogrammetry 
have access to aerial triangulation adjustment programs operating 
either with bundles or models. 
It is also clear that these program systems (Ackermann, University of Stutt 
gart-models ; Bauer-Müller, Hannover - bundles)are capable of meeting 
model accuracy, as the Oberschwaben aerial triangulation tests have 
shown, ift case a comparator is used for measurement. 
It can be shown that an analytical plotter can be used with the 
same accuracy as a stereocomparator for aerial triangulation . 
This for the first time lays the emphasis of aerial triangulation 
on the measuring effort. 
• v : t i . • ' , ' 
But the analytical plotter can also be used more efficiently than a 
stereocomparator or plotter if it is used for semiautomatic search» 
coding and transfer of triangulation points. In case the number of points 
to be measured per model is large the efficiency of triangulation may 
be increased by about a factor of 2. 
While one is in the position of adjusting 2000 photos together.today 
one also/has to