The curvilinear substrate. From the phenomenon of dequantification to deformation of the type

What is the “deformation of the form” (Borie et al. 2008)? And what is the role of deformation in the relationship between the new building and the context in which it fi ts? The study of the city is the study of the urban form through the reading of the hierarchy of the paths, the fabrics and the characters of the buildings, which make up the grammar of the form, in a process intended as a succession of successive systems of structures over time (Caniggia 1963 ). At each stage of the training process, these structures are themselves systems of lying “urban forms” that infl uence the subsequent ones, deforming the building through a resilient substrate (Strappa 2016). The theme of deformation and adaptation to the previous one are analyzed in this study through the urban action of the dequantifi cation of the special building: the stadiums, theaters and Roman amphitheatres have become the resistant sediment that infl uenced the formation of the new fabric. The deformation of the type and the variants that are formed on - and inside - these curvilinear buildings over time fi nd in Kandinsky and Klee’s studies on circular form and its relationship with the linear one a new term for comparison and confi rmation of morphological studies on form urban and on the role of the substratum as an element not only of “resistance” but of interpretation and transmission of form.