3D MODELING OF THE OLD TOWN OF XANTHI IN GREECE
N. LIANOS*, S. SPATALAS*", V. TSIOUKAS*, E. GOUNARII*
? Dept. of Architecture, Demokritos University of Thrace (nlianos, vtsiouka, egounari)@arch.duth.gr
? Dept. of Rural and Surveying Engineering, Aristotle University of Thessaloniki, spatalas@topo.auth.gr
Commission V, WG V/4
KEY WORDS: Cultural Heritage, Architecture, Documentation, Survey, Visualization, Virtual reality, Model
ABSTRACT:
Xanthi is a medium populated town that lies near the north borders of Greece. The old town of Xanthi is stated in the centre of the
urban area and is one of the best-preserved traditional towns of Greece. Most of the old houses belong to:
e the so-called “traditional type”,
e neoclassical influenced houses and
e buildings strongly influenced of 19th-20th century European architecture.
There have been several succeeded restoration attempts for many of them. The municipality of Xanhti has made a great effort during
the last decade in order to promote the old town and has succeeded so far. However in order to make sure that this important cultural
heritage is under continuous monitoring, an accurate documentation of the old town's territory should be realized. The aim of this
paper is to describe an efficient way for the documentation of this unique cultural heritage.
The following steps describe the proposed documentation
e Recording of the architectural features and historical data of the houses and main civil buildings (which is also part of the
student's exercitations).
® Restitution (using classical architectural and modern close range photogrammetric procedures) of the most representative
buildings
e The integration of all the graphical and textual information in a GIS environment
The products that may derive out of this effort (maps, VRML files, surveying of houses, etc) can be used for several different
documentation processes, aiming to the further protection of the old town.
1. INTRODUCTION Part of their training, is the use of photogrammetric techniques
for the documentation of the façades of the most interest
It is an important issue to record the cultural heritage, which
concerns countries as well as individuals. It is important that
every educational institution, which is in some way connected
with a country's cultural heritage, should arise great efforts in
the direction of a complete recording in the best possible and
effective way, to document important monuments of the past
history.
The city of Xanthi, has the advantage of the existence of one of
the most well preserved traditional towns in Greece, hence it
was the most appropriate city to host the department of
Architectural engineering of the Democritos University of
Thrace. The professors of the Department have the opportunity
to teach and analyze in the best and most direct way the special
morphological features of the well-preserved buildings,
belonging either to the vernacular, traditional, neoclassical or
modern influenced architectural type.
Fig 1. Students working in the field
On the other hand the students, during several different courses
> st j tina for ; i Ys : es s endi
of the 1” and 2" years of their studies, learn how to use buildings and the use of the indirect photogrammetric products
architectural-conventional and photogammetric techniques for for the most appropriate realization of the final drawings.
the survey of the general lay out of buildings, as well as for their
details up to 1:1. The Department provides to the students the necessary support
including surveying instruments Total Stations (fig. 1), simple
measuring devices (LEM 30 laser distance meters), digital
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