Compact Terrain Database (CTDB)
CTDB is the terrain representation used in JointSAF / ModSAF / OneSAF Testbed and is composed of:
Terrain skin and bathymetry: Gridded or TINed
Physical Features
- Affect intervisibility
- Trees, canopies, laid linears
- Volume models
Abstract Features
- Used for planning
- Area feature boundaries (tree canopies, lakes)
Highly compact to fit as much of the terrain into memory as possible