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The analytical plotter can be programmed to restitute the single 
or double image orientation from the conditions or the control 
contained in the model space. Such conditions as the equation of 
a straight line, the knowledge of a fixed space angle, a fixed 
space direction or the shape of a mathematically definable object 
may be take:i into account. 
Simple viewer modifications such as the addition of a manual zoom 
control for the viewer optics may make the plotting more universal. 
It has been demonstrated that the Analytical Plotter constitutes 
a very flexible and versatile tool. The justification of its use 
however lies in its capability to be adapted to do standard photo- 
gramme trie tasks more efficiently with respect to time and cost. 
This is not possible in a significant manner without reprogramming 
for a certain application. The most important applications are: 
the use as an aerial triangulator, 
the use as a digital plotting device, 
the use as a general terrestrial plotter. 
The papers of Hr. Riidenauer and Mr. Keune will report about the 
progress 'mode in this respe c t at the Technical University of 
Hannover to date.