Plane 2
Fig. 7 Mosaic of the Tectifie
4. CONSTRUCTION OF THE 3D MODEL
For a more efficient documentation of the building, a 3D
model on the PC was made by joining the vector files
together. This was achieved by special software written in
AutoLisp, in AutoCAD S/W package environment, so that:
e the local coordinate systems, to which the rectifications
of the sides are referred, to be adjusted together
e each detail point of the rectified facades, to acquire the
correct third dimension automatically.
Ex
20
d images of the upper part of planes 2:1 and 3 of the
d
Plane 5 à
Plane 1
. Plane 3
southern side (at scale 1:100)
The size and the complexity of the building, together with
the large number of rectifications produced, made the task
extremely difficult. The detailed and careful codification of
the data (per facade, rectification, characteristic) is the
most fundamental factor for an efficient outcome (similar
references are found in projects for different objects but of
similar results, such as Heine, 1993). So, all the planes
which constitute the building as a 3D figure in space and
the characteristic details of each facade, as they had been
restituted from the rectified photos, were created. Then, by
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996
using the Au
the completic
- the detail:
rectified p
balconies c
etc
- the variou:
remaining
chimney).
The result of
the whole e»
producing th
plane of eac
plane (X, Z)
production o!
be easily ma
shows the s:
of 22° above
The applic
techniques