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1.2 COMPUTER AND INFORMATION SCIENCE
This paper outlines a two stage approach for digitally recording cultural heritage sites. This approach involves a 3D modelling stage and the integration of the 3D model into a 3D GIS for further management and analysis. The modelling stage is carried out using a new concept; Historic Building Information Modelling (HBIM) which has been developed at the Technological University of Dublin. Historic Building Information Modelling is a system for modelling historic structures from laser scan and photogrammetric data using Building Information Modelling (BIM) software. The HBIM process involves a reverse engineering solution whereby parametric objects representing architectural elements are mapped onto laser scan or photogrammetric survey data. A library of parametric architectural objects has been designed from historic manuscripts and architectural pattern books. These parametric objects were built using an embedded scripting language within the BIM software called Geometric Descriptive Language (GDL). These objects are combined and mapped onto the survey data to build the entire model. After the 3D model has been created the next stage involves integrating the 3D model into a 3D GIS for further analysis. The international framework for 3D city modelling CityGML has been adopted for this purpose. CityGML provides an interoperable framework for modelling 3D geometries, semantics, topology and appearance properties. The aim of this research is to bridge the gap between parametric CAD modelling and 3D GIS while using benefits from both systems to help document and analyse cultural heritage sites.
Dore, C., Murphy, M., (2012), Integration of Historic Building Information Modeling and 3D GIS for Recording and Managing Cultural Heritage Sites, 18th International Conference on Virtual Systems and Multimedia: "Virtual Systems in the Information Society", 2-5 September, 2012, Milan, Italy, pp. 369-376. doi:10.21427/e7sy-rt81