The scan-to-BIM process for the enhancement of architectural heritage. The church of San Giovannello in Gerace

The study we present is related to a scan-to-BIM process carried out on the Romanesque-Byzantine church of San Giovannello, located in the historic center of Gerace (Reggio Calabria, Italy). The work is part of a broader research project, called GENESIS (acronym for Seismic risk management for the tourist enhancement of the historic centers of Southern Italy), promoted by various research groups from numerous Italian universities and aimed at managing seismic risk for the tourist enhancement of the historic centers of Southern Italy. The scan to BIM process constitutes the central phase of a flow of actions that begins with the study of historical sources, proceeds with the analysis of the current conditions of the buildings and concludes with a series of design proposals aimed both at mitigating the consequences of any actions seismic, and the implementation of innovative systems for remote and in-person use (VR, AR). The proposed valorization strategy embraces different fields: it develops starting from the historical knowledge of the building, rests on the solid scientific foundations of the instrumental survey, and it exploits the information coordination potential offered by BIM-based methodology and tools. Finally, the communicative aspect involves both the morphology, identifying the underlying geometric structure, and the iconological and iconographic aspects