Advanced Building Simulation

Immersive building simulation 227
Figure 9.10 Hybrid grid—a combination of structured and unstructured grids (Courtesy:
Oliver 2003).
Figure 9.11 Cartesian grid (Courtesy:Aftosmis et al. 1998). (See Plate XIII.)
(Figure 9.11). Thus, all difficulties associated with meshing a given geometry are
restricted to a lower-order manifold that constitutes the wetted surface of the geometry
(Aftosmis et al. 1998).
In addition to the factors described in this section that influence the ability to access
and visualize the data for immersive building simulation, data access and manipulation
depends on an interaction mechanism that requires intuitive interface. This mechanism
takes advantage of both special immersion and command functionality. The interaction
mechanism will be described in the next section and issues related to specialty interface
will be discussed briefly in the example case at the end of the chapter.
9.2.2 Interaction
For a successful immersive building simulation, issues of registration, display and
latency have to be resolved. These are typically issues related to hardware, user and
software interactions.