Abstract
Abstract. The present paper analyses two cases exemplifying a possible use of survey and its elaborations in the field of conservation: the bell tower of the Basilica Santa Maria delle Vigne and the Chiesa di San Matteo, both situated in Genoa. In the first case, the threedimensional survey was used as a basis to build a model for the structural analysis. The need for an accurate database created with the three-dimensional survey allowed the research team to determine and highlight the critical points of the structure as the thickness of vaults and floors, the location of loads and the inclination of the walls. The data collected was used to create an accurate 3D model to be tested with simulations, in order to verify the stability of the bell tower when applying stress and limitations. In the second case, the three-dimensional survey was used as the basis for the collection, management and representation of the data derived from the survey on rising damp. The purpose was to test a dynamic data processing system that could be used as a tool to collect data on site as well as to access data remotely. By using software for three-dimensional representation and a node programming language, it was possible to define a system that offered dynamic viewing and was easy to use, through the use of chromatic scales and level curves, which can be generated starting from tables containing numerical data. Surveying, diagnostics, modelling and representation allow one to experiment with new ways of interaction within the common goal of conservation.
Highlights
The use of advanced technology can help experts and researchers in the field of Cultural Heritage, in finding techniques and applications able to translate the requirements which are constantly changing - of registration, knowledge, forecasting, quantification and storage or exploitation of the artefact
Three-dimensional surveys, diagnostic investigations, predictive models, visualisation, interpretation, and the representation of the data collected are only some of the basic elements needed to understand both an artefact and the designing solutions compatible with its conservation
Information on curving, shape and thickness of a given element was essential to group the various types of vaults, floors, and stairs. Thanks to this interpretative projection, it was easier to verify a hypothesis in specific significant parts of the constructive elements, which undoubtedly facilitated a better understanding of the bell tower
Summary
The use of advanced technology can help experts and researchers in the field of Cultural Heritage, in finding techniques and applications able to translate the requirements which are constantly changing - of registration, knowledge, forecasting, quantification and storage or exploitation of the artefact. The current digital survey techniques are characterised by a serious difficulty in managing and returning data, they enable the acquisition of fundamental information for the analysis and the study of the artefact, generating digital copies, in which measurement errors are extremely reduced This could be crucial in the use of predictive models designed to describe and discretise reality, which is far too complex. It is important to be sure of the configuration to be able to evaluate the responses as well as to focus on the problems to be addressed and, above all, one must adapt to reality without attempting to force it or distort it into the limits of a prefigured model For this reason, the accuracy level of a model varies depending the goals, the level of knowledge that can be achieved and the tools that can be used. Thanks to the use of software for three-dimensional representation and a node programming language, it was possible to define a system that offered dynamic viewing and was easy to use trough chromatic scales and level curves, which can be generated starting from tables containing numerical data
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