Representation of complex façades using typed graphs

In this paper we present a method for representing complex façades. For this purpose we developed a hierarchical decomposition for the façade. The steps of the decomposition are represented as nodes in a typed graph where the leaves are the atomic façade elements. Every node includes necessary attributes for its façade structure. The edges in the graph depict adjacent façade elements providing spatial information. With this approach complex architectural structures can be defined easily. A geometry engine traverses the graph in order to generate the detailed façade geometry but can stop at any given depth to produce exactly fitting geometry.