MENT 
ver 10 million. It is a 
palaces, foundations, 
is called “Old City of 
uses on a Geographic 
lata in digital form and 
ating through the data 
een them for different 
endangered. Some of 
ed by creeping urban 
erefore, safe guarding 
st and document it. 
ncreasing number of 
logy to be adopted for 
igement and spatial 
eritage requires a very 
alue, history, condition 
cess to all of the 
te is the key to its 
this enormous amount 
each building/site, the 
m" is essential. 
S) are a relatively new 
ce advantages with the 
so that it allows the 
e of information of a 
. part of any user that 
\ GIS include software 
scedures elaborated to 
ration, manipulation, 
it of spatial referenced 
anning, administration, 
z problem. 
provide a group of 
iral tasks impossible to 
ind economy by means 
information about the 
ed. Photogrammetric 
products refer almost exclusively to the object space (maps, 
surfaces (DEM’s), orthophotos, points, profiles). 
Photogrammetry is an important contribution to many 
disciplines. The most widespread use of the photogrammetric 
technique being for the representation of the facades or 
elevations of building and structures. There are many uses of 
the technique, including 3D city models for building repair and 
conservation. The 3D reconstruction of houses and other man- 
made objects is currently undergoing active research, and is an 
issue of high importance to many users of Geographic 
Information System (GIS), including urban planners, architects, 
telecommunication and environmental engineers for historical 
development, topography, vegetation, land use pattern, 
transportation network etc. (Toz, 1999) 
CASE STUDY 
The land of present-day Turkey, between Asia and Europe, has 
been called the crossroads of history. It has always been the 
scene of international exchange of culture, art and architecture. 
Since early days, the traditions of the past, in the social and 
cultural reflection of various Anatolian Civilizations can still be 
seen in Turkey and in the remains of historical cities dating 
from the Neolithic and Early Chalcolithic Ages to mosques, 
palaces and historical houses of the Ottoman Period. (Giilersoy, 
1991) 
Zeyrek is situated at the slopes of the fourth hill in the Historic 
Peninsula in Istanbul. The district starts at the shores of the 
Golden Horn-Halic, and extends up the slopes along the Atatürk 
Boulevard. Retaining walls reaching up to 15 meters are to be 
found at some spots along the Atatürk Boulevard, as well as 
dykes and terraces dating from the Byzantine period. These 
structures present an interesting view in the direction of Galata, 
Golden Horn, and the Historic Peninsula. (Gülersoy, 2001) 
A Geographic Information System (GIS) approach was 
employed in the study. Arc View 3.2 has been selected as GIS 
  
software. The Fatih district in Istanbul that has been declared a 
historical area has been selected for the case study. 
This paper focuses on those features of the system that are 
related to cultural heritage documentation. The monastery of 
Christ Pantepoptes (Eski Imaret-i Atik Cami) was selected to 
sample building for the case study. 
The monastery of Christ Pantepoptes is known to have been 
either founded or renovated by Anna Dalassena, mother of 
Alexius I Comnenus (1081-1118). Built on the summit of the 
City's fourth hill, above the underground cisterns, it commands 
a magnificent view of the Golden Horn and the Bosphorus. The 
location explains the name Pantepoptes, i.e. the All-Seeing. The 
church is of the cross-inscribed type with four columns 
supporting a dome. Its ground plan is that of a three-aisled 
church with two narthexes. Though in a state of neglect, the 
elegantly proportioned building has retained the fine decorative 
brick work of the exterior, the shallow niches, the arches 
framing single or triple windows, the arcade of the gallery on 
the west side, the meander and rosette friezes, as well as 
sections of the cornices carved with palmettes. 
DATA, SOFTWARE AND DATA MODEL 
Municipality of Metropol Istanbul provided data, which has 
been used in this study, in the scale of 1:1000 digital maps in 
micro station format produced by means of photogrammetric 
techniques from aerial photographs. 
Detailed geometric information of the sample building was 
derived from architectural photogrammetry and geodetic 
measurements.(El Din,2000). Site photography was obtained 
using Rollei D7 metric camera. The control points (approx. 35) 
were realized by using geodetic techniques. The 
photogrammetric evaluation was done by PhotoModeler 
software (figure 1). 
Photo 3 
Figure 1. Example of the photogrammetric evaluation 
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