The e-partition is obtained by joining any pair of discontinuities of shapes without crossing any a wall, and extending them without going outside the boundary of the whole space.
e-partition (e-spaces)
Sources
Peponis, J., Wineman, J., Rashid, M., Hong Kim, S., Barna, S., (1997) On the description of shape and spatial configuration inside buildings: convex partitions and their local properties, Environment and Planning B, Vol 24, 761-781. pp.769