Polygonal Data
Polygonal Data – a collection of primitive geometric elements (points, lines, polygons)
- Terrain surface (e.g., a TIN)
- Features integrated into the terrain, including roads, streams, etc.
- Models of buildings & other cultural features
Polygonal Data Sources
- Existing Visual, Sensor & SAF Environment Databases (from projects such as STOW, CCTT, WARSIM, OneSAF, etc.)
Polygonal data is analogous to vector data, but with simpler primitive elements and optional topology
- Edges are limited to single line segments
- Faces are usually limited to triangular or quadrilateral planar polygons