VPL for HBIM: Algorithmic Generative Processes for the Thematic Mapping of Information Models

Reality-based tools for architectural surveys allow the acquisition of multiple integrated data (morphological, material, colorimetric). The number and heterogeneity of the acquired data represent an advantage for information gathering; yet, at the same time, this calls for newconsiderations regarding big data management and output. Following these premises, this article presents the first results of an ongoing research activity aimed to the definition and testing of parametric tools (VPL for interoperability – BIM/H-BIM) for RGB-based, semi-automated thematic representations of the conservation state of architectural façades. Specifically, the contribution proposes an algorithmic generative definition for decay phenomena mapping. This was experimented on the façades of the Church of the Archconfraternity of Santa Maria delle Grazie e Sant’Andrea Apostolo (Naples, Italy), surveyed through digital terrestrial photogrammetry and thermographic cameras. Orthophotos and thermographic mosaics constitute the types of RGB mapping used to validate the designed tool. This process is aimed to the visualization/ modeling of data related to complex phenomena and to the rapid production of graphs for documentary and preventive purposes.