Survey and representation of funerary architectures: the evangelical cloister in the Charterhouse of Bologna

The survey, representation, and analysis of portions of monumental cemeteries is an open topic. These areas were introduced in Italy between 1804 and 1814 following the Napoleonic edict, defining very interesting architectonic and sculptural spaces. Over two centuries, the need to begin preliminary work to analyze surface and structural deterioration often becomes essential, defining strategies for conservation and intervention. In this cognitive process, the use of 3D surveying methodologies allows the acquisition of these complex spaces, enabling their interpretation and analysis of shapes by drawing. The case study discussed is the Cloister of the Evangelicals or Acatholics, built in Bologna in 1822 and dedicated to people of faith other than Roman Catholic. The space is within the cemetery of the Certosa di Bologna, founded in 1801, and the container of a vast heritage of paintings and sculptures and a UNESCO World Heritage Site since 2021. The research illustrates, on the one hand, the process of data acquisition and restitution, which allowed us to define the basis for mapping and analysis of the state of structural conservation. However, the complexity level and the scale variation define bottlenecks in both acquisition and restitution. Some formal rules and exceptions are also highlighted through a geometric-proportional analysis, showing a complete path of reading and analysis of an example of funerary architecture.