108 
Fig. 4 
manual 
Fig. 5 
manual 
coverac 
operato 
extreme 
the Di 
observe 
and/or 
interpre 
more a 
restituti« 
been re 
after a i 
3. Digi 
scaie p 
The n 
perform 
for the I 
the exc 
area th 
Fig. 3 - Archaeological area of Cerveteri. Contour ^e exc, 
map (contour interval 2 m). ^ 5,000 
was m; 
representation, and they require therefore different belts wi 
kinds of graphical translation and interpretation, would 
Also the reading of the excavation bottom can be correiat 
initially not so clear to the photoqrammetric * n ^ 
the ster 
Fig. 1 - Aerial photograph of the archaeological 
site during excavations. 
division of the codes, and their relative graficism, 
towards those used traditionally in archaeological 
context; many of the in required symbols seem to 
be of difficult transposition in the CAD 
Fig. 2- Archaeological area of Cerveteri. Analytical 
stereoplotting (original map scale 1:2.000). 
With these premises the only difficulty results the 
correct selection of codes and the right reading of 
the archaeological findings, it is most important in 
fact to pay attention to bring back the hierarchical