Xanadu (film) actual order in the film: The plot of the 1947 film "Down to Earth" was used as the basis for "Xanadu". In the film, Rita Hayworth played Terpsichore, opposite male lead Larry Parks, who played a producer of stage plays. The film was originally conceived as a relatively low-budget roller disco picture. As a number of prominent, A-list performers joined the production, it evolved into a much larger project, while retaining rollerskating as a recurring theme, especially in the final scenes of the club's opening night. Earlier versions of the story established that Sonny was the artist who created the
Enfilade (Xanadu) Enfilade (Xanadu) Enfilades are a class of tree data structures used in Project Xanadu "Green" designs of the 1970s and 1980s. Enfilades allow quick editing, versioning, retrieval and inter-comparison operations in a large, cross-linked hypertext database. The Xanadu "Gold" design starting in the 1990s used a related data structure called the Ent. Although the principles of enfilades can be applied to any tree data structure, the particular structure used in the Xanadu system was much like a B-Tree. What distinguishes enfilades is the use of dsps and wids in the indexing information within tree nodes. Dsps are displacements, offsets or