AN APPROACH TO BUILD A COMPLETE DIGITAL REPORT OF THE NOTRE DAME CATHEDRAL AFTER THE FIRE, USING THE AIOLI PLATFORM

Abstract. With the development of digital technologies in the documentation methods for cultural and architectural heritage, platforms and tools have emerged as solutions to collect, manage and produce data for multidisciplinary monitoring and studying purposes. In the context of an incident such as the fire of the Notre-Dame de Paris in April 2019, the considerable mobilization of the architects, scientists and researchers, has led the "digital data" working group to conceive a digital ecosystem capable to collect and integrate existing data, produce new data, share and archive, and finally structure and semantically enrich. One of the particular aspects of this works involves an approach to build a complete digital report of the Notre-Dame de Paris cathedral. With the help of photogrammetric acquisitions of the cathedral, leading to point clouds generation, projects were created in the aïoli platform. The structuring of the collected data (condition report, architectural descriptions, chemical and physical analysis…) has then led to the construction of semantic annotations, accompanied by description sheets and attachments. The vast multidisciplinary studies conducted on the cathedral as well as the large number of projects and annotations built over the course of 4 years constitute a singular collection of data, that will be the object of cross comparison and data interpretation in the future years.