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The procedures followed for the preparation of the thematic layers, describing the finding in an Etruscan site, are presented. The testimonial shows the advantages of using AutoCAD based tools, in order to link the database, containing the description of the objects in the drawing, to the CAD elements. This paper shows how to use the potential of a desktop GIS, based on AutoCAD and DBIV, in a variety of fields: from the preparation of hazard maps, showing the risk zones of fragile archaeological sites, to the preparation of a micro GIS project of fractures and related sections of a painting restoration project. The methodology proposed starts with the preparation of a topographic layer for the archiving of objects found on the site. The use of AutoCAD in conjunction with GDL-Graphic Data Link by Alpha Consult srl of Rome and ADE by AutoDesk is proposed, in order to simplify mapping of archaeological sites and perform relational queries on stored data. The AutoCAD application, called GDL/ARCHEO, is designed to establish and maintain DWG/DXF-DBF LINK, that can be utilized by ArcCAD (ARCINFO Data Structure), MAPINFO and INTERGRAPH. GDL/ARCHEO, a personalization of GDL is used as the data input environment for descriptive data related to AutoCAD featured in the drawing. The program has a library of Etruscan vases that can be further personalized and expanded; the default database can be modified to accommodate personalized projects. GDL/ARCHEO has the ability to create overlays, to assign ID-values to the resulting polygon, to provide network tracing capabilities and establish buffer areas for further studies. The program is an add-on ADE (AutoDesk Data Extension) for large archaeological sites. The paper also describes the GIS functions of overlay, buffer, polygon processing and network tracing to prepare hazard maps showing the risk analysis related to the different sites. |
