ON THE DESCRIPTION OF SHAPE AND SPATIAL CONFIGURATION INSIDE BUILDINGS - CONVEX PARTITIONS AND THEIR LOCAL PROPERTIES

As we move through buildings, we experience not only continuous change s of perspective but also discrete transitions from one space to anoth er, To describe movement as a pattern of such transitions we need meth ods for partitioning space into relevant elementary units. Here we exp lore several convex partitions including one based on the thresholds a t which edges, corners, and surfaces appear into the field of vision o f a moving subject, or disappear outside it. Our purpose is to contrib ute to the development of quantitative descriptions of building shape and spatial configuration.