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© Zhukovsky Mikhail, 2000: BAR 2001
Библиотека -> Virtual 3-D Reconstruction of the Kiafar Site, North Caucasus, Russia -> стр. 299 (3 из 5)
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a 1m contour line interval. Providing detailed relief data, the plan also shows some 200 surviving structures as well as numerous landscape peculiarities (figure 2).
2. The remains of architectural structures at the site are very well preserved, which allows for a minimum of conjectures in the course of modelling (figure 3).
3. Kiafar, allegedly the capital of the Western Alans or a residence of a powerful prince, included all sorts of household structures, sanctuaries and fortifications. A 3-D model of such a complex site provides rich opportunities for an analysis of both the juxtaposition of architectural structures and their interplay with the micro-regional landscape.
4. The mountain ridge, where the site is located, is covered with woodlands (figure 4). This fact hinders the visual estimation of the site and the degree of man-inflicted changes to the landscape. The interactions of the ancient town population with the environment, their use of the landscape and their adoption patterns can only be analyzed virtually. Also, and this is also a vital issue, the same is true of the aerial and space survey. The decoded satellite and aerial data are hardly informative at all.
5. Last but not least, the Kiafar site was selected for 3-D modelling to prevent its ultimate loss.

The 3-D model enables us to achieve a virtual conservation of the site, and estimate and monitor the great damage done to the site with the passage of years. The information extracted from the model would help to elaborate a set of methods for the preservation of Kiafar and other archaeological sites in Russia. An adequate model of Kiafar and the adjacent territories could contribute to the creation of an archaeological national park in the North Caucasus.

2.2. Software requirements

At present a wide range of commercial GIS/CAD software products are available at constantly decreasing prices. It makes the final choice a matter of budget opportunities and particular preferences. Along with our notion to integrate the VR model into the analytical GIS environment, we were seeking a software tool with an extensive set of both GIS and CAD functions, and failed to find one. Most GIS products lack a powerful COGO engine indispensable for the purposes of sophisticated detailed 3-D wireframe modelling. CAD software offers much more flexible modelling instruments and opportunities, however its analytical potential is far from being sufficient.

In the end we decided to use Autodesk AutoCAD 14 as a 3-D modelling tool. The digital terrain model was created in its module EaglePoint Software LANDCADD 14, which is specially designed

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© Zhukovsky Mikhail, 2000: BAR 2001
Figure 3: Fortification wall.

Figure 4: Panorama of Kiafar site: mountain ridge completely covered with forest.

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