3D Survey and HBIM Model of the Basilica of San Miniato al Monte

Abstract

The 3D digital survey of the Basilica of San Miniato al Monte in Florence was developed with the aim of establishing a methodological representation protocol capable of preserving both the readability of the monument’s geometric and decorative features and the creation of a parametric restitution system through a three-dimensional model within an HBIM (Heritage Building Information Modeling) environment. The Scan-to-BIM modeling phase and the assessment of correspondence with the original geometries of the monument, derived from the reality-based point cloud, were explored in depth. The main goal was to create a tool to support the management and conservation of the rich historical and architectural heritage contained within the Florentine monument.
The creation of the parametric model required the definition of ontologies and families of construction elements that constitute the complex, initially proceeding with a segmentation of the massive data contained in the three-dimensional point cloud. This model was then used as a morphological basis for the enrichment of information, allowing in-depth digital interaction with the parameters defining the architectural artifact. The HBIM model not only provides detailed and accurate documentation of the building, but also enables optimized information management, making data easily accessible and modifiable. This integrated approach represents a significant advancement in the protection of cultural heritage, offering a replicable methodology for other sites of historical and architectural relevance.