How does SEDRIS represent different items such as a tree or sound velocity profile (SVP)?
There are no tree or SVP classes specifically in the SEDRIS data representation model (DRM). There are entities in the DRM such as a point feature, a geometry, or a grid. Each entity is described by its attributes. With the appropriate attribute information, a point feature entity can represent a tree. A geometry entity can also represent a tree. With appropriate attribute information, a grid entity can represent an SVP. Along with location, the specific attributes place and elaborate the representation of a specific item within a synthetic environment.