450 
THE NEW STEREOPLOT ANALOGUE STEREO PLOTTING 
MACHINE 
Herbert Starosczik 
VER Carl Zeiss JENA 
GDR 
Commission II/! 
General 
The major task of aerial photogrammetry is to represent 
graphically, or acquire digitally, the topographic informa- 
tion of the earth's surface from aerial photographs at 
different scales according to their purpose of use, Ihe 
current trend in photogrammetry towards universal analytical 
restitution systems has not impaired the great importance of 
analogue stereoplotting machines for map production, Also 
in the next decade analytical and analogue stereoplotters 
will be the dominating. systems in photogrammetric map produc- 
tion; while analytical machines will be preferred for special 
tasks, analogue plotters will primarily be used for map produc- 
tion. For such tasks analogue plotting machines will be the 
most economic solution, Distinguishing features are their simple 
operation, rugged construction, relatively little maintenance 
work, high adjustment stability, long life and high accuracy. 
Under these aspects the new STEREOPLOTTER analogue stereo- 
plotting machine has been developed. It will gain a strong 
foothold beside the well-known STEREOMETROGRAPH and TOPOCART 
analogue stereoplotters, of which far more than 1200 machines 
are used on all continents, Compared with these two machines 
the particular merits of the STEREOPLOT are such features 
as internal plotting table, free-hand guidance, common $ , 
weight compensation of the space rods and photo carriages, 
one-arm guide rod and connection possibility of digital and 
analogue peripheral devices, With the STEREOPLOT belonging 
to the lower-price class of analogue plotters the program 
of analogue stereoplotting machines is completed, 
The basic variant of the STEREOPLOT consists only of the 
measuring system with internal plotting table and free-hand 
guidance, Compared with this, there is an extended design 
variant with hand-wheels, belt drive in the projection plane, 
electrical outputs for connecting peripheral devices, and 
the electrical 120 x i20 plotting table. In a third variant 
this table is replaced by the DZT 90 x 120 Digital Plotting Table. 
The measuring System is supplemented by digitizers and the 
electrical height counter is dispensed with, 
The adapter plate for o, s 210, the weight compensator for 
the photo carriages, and model corrector have been provided 
as accessories,