Figure 6. Perspective view of sacresty with two little rooms. 
All the survey has arranged in an only one reference system 
rappresented from a topographical net that develops itself inside 
and outside the archives. Three vertexes of this net are inside 
the sacristy and other five around it. This has allowed: 
• First of all, has been possible to refer the 3D model, that 
derived from the laser scanning survey, to the global 
reference system. That has been possible thanks to the 
coordinates measure of many target points with classical 
topographic methods. 
• Then, has been possible the integration of the survey 
realized with laser scanner, with the reconstruction of the 
side small rooms. This last one has been realized with a 
survey made with traditional methods and reported to the 
global reference system. 
• Besides has made the survey of the Sacristy’s external 
surfaces, for which was used the photo-straighten technique. 
So the final 3D is not only an internal view of the 
architecture. 
A topographical net is an important point to start every 
architectural survey, but in this case where we need to integrate 
data from different instruments and different technics, it 
assumes a particular significance. All the survey phases have 
been referred to an only one reference system thanks to a high 
precision network, measured by the University of Brescia. 
Every point of this net, made in 1996, has a monography with 
the position indicated by a picture and a sketch that allows to 
find it easy. Besides there are it’s coordinates and those 
accuracies calculated by a least squares adjustment. All these 
informations are stored in a HTML structure into an interactive 
CD-ROM, that can be consulted by a common internet browser. 
The final 3D digital model is composed with 3D STUDIO 
MAX software, where have been imported all components of 
survey from different formats (.wrl; .bmp;.dwg.;dxf). 
LASER SCANNING 
SURVEY 
Reconstructor 
Orthoimages/edges/sections 
PHOTOGRAMMETRIC 
SURVEY 
TOTAL STATION 
SURVEY 
t 
Rollei MSR 1 
BMP 
Autocad 2000 
DWG/DXF 
3D STUDIO MAX 
VRML VIDEO 
(AVI/MOV..) 
Figure 7. Chart of work procedure. 
MODEL’S 
VIEWS 
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