Analysis processes of the vaulted system of the cloister of the Monastery of San Juan de Los Reyes through photogrammetric surveying

Abstract. The article presents the results of the architectural survey campaigns and the subsequent graphic representation and modelling of the Monastery of San Juan de Los Reyes in Spain, with particular focus on the compositional elements of the cloistered vaulting system. The research focuses on documenting the geometric-proportional rules of the construction and decorative elements, which are essential for understanding the architecture analysed. Using integrated survey techniques, through terrestrial and aerial photogrammetry, point clouds and textured three-dimensional models were generated, derived from polygonal meshes, which were subsequently processed to generate representative plans and sections. Taking as a reference the methodology applied in the 17th century by the architect Guarino Guarini, who emphasised geometric simplification and synthesis analysis, the objective of the research is not only the collection of digital data, but also their interpretation through different interpretations, promoting an understanding and dissemination of the analysed architectural heritage that is based on the concept of discretization of the acquired data, according to both the theoretical and practical knowledge of the operator, in order to reduce occlusions and improve the graphic representation, communication and dissemination of the acquired information.