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4) Gino Parenti, “The future of the telescope Printer-Rectifier". 
This method of use has some analogy with the system of byiq 
pda in 
statoscopic indications; in this case also the statoscopic difference > i Tesi 
stations is affected by an accidental error superior to the error by which i bet i 
i diff, i 
» AS is know 
m the Spread i 
Check a ty, 
level b, is determined by means of the relative orientation; however 
pre-setting of the statoscopic difference of level frees the bridging fy, 
systematic errors, whose effect, for its entity, is in the end difficult to 
compensation. 
In reality, with the gyrocopic nadiral point method one can alread 
out chainings to be used directly for the plotting, achieving the necessary precisi á 
scale maps and with fast surveys, with instruments of the second order, of iis 
multiplex type, for long strips up to 6 — 8 times the flying altitude, When the : M 
the strip is limited, this is also possible for medium scale surveys; the help of the = 
increases such posibilities. diy 
Finally we wish to mention here the Nistri nadiral point telescopic Photonrn, 
Photorectifier, which has been discussed in Commission I 4); it is possible With a 
simple operation and directly using the recording of the gyroscopie nadiral point d 
the photographs of a take with such a recording available. These rectified photog T 
on a plotting machine (that can present very reduced fields of w and 9 variation 5 
be found to be already absolutely oriented with a good approximation, when the M 
are in the nadiral position. 2 
For the purpose of radial aerial triangulation, such rectified Photographs 
treated directly with the nadiral point method, also for the purpose of the “lott ays 
method; then, next used in plotters of the third order, they increase their perform 
in order to verify, with good accuracy, the hypothesis on which these instruments ape} 
(nadiral take) ; finally the capacity of said photorectifier to introduce small pre-estallii 
variations in the format of the rectified photograph permits, for all the photographs; 
group of strips of level terrain, not only to rectify but also to bring them all to Ehe 
scale of one of them, as suitably chosen; and this, for example, by virtue of the aid of 
indications of a statoscope or a radio-telemetric profile. Such a procedure permits 4: 
formation of controlled photoplans, with an already sufficient precision, at scales up 
double that of the original exposure, this without exacting from the gyroscopic recon 
a too high precision and taking into consideration the normal effective precision off 
statoscope data, or, better, of the radio-telemetric data. 
y think of Gn 
  
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