Summary: |
The use of virtual models in architecture has grown steadily in the last decade. 2D, 21/2, 3D and 4D are labels that resume this recent history and that refer to models that can be inspected in a programmed or an interactive mode. But in the case of 4D models this distinction, trivial in the previous cases, implies technical and conceptual issues that are quite relevant to the architectural world. This paper touches these issues in relation with a big model, including large areas of Barcelona, that is being developped at the Laboratorio de Modelado Virtual de la Ciudad and that has already atracted the attention of the public authorities as it allows an interactive approach to new projects inserted in the existing buidings of the city. |