"Decoding Spaces Components is a set of spatial analysis components for Grasshopper3D and Rhinoceros 5.0 . The DS-Components allow to generate graphs from line-drawings (e.g. street patterns) and analyse these graphs according to familiar graph-measures. The line-drawings are interpreted as segment maps. The derivable graph measures are closeness centrality and betweenness centrality (Space Syntax terms them integration and choice). The measures can be calculated for different radii, to consider differences in cruising ranges for different actors." Developed by Martin Bielik, Sven Schneider, Reinhard König in cooperation with chair Computer Science in Architecture (Prof. Dr. Donath).
More about Space Syntax's methodology here: http://en.wikipedia.org/wiki/Space_syntax
Via Ignacio López Busón