National Center for Geographic Information and Analysis
Unit 30 - Storage of Complex Objects
- Author(s): Unit 30, CC in GIS
- Douglas, David H.
- Editor(s): Goodchild, Michael F.
- Kemp, Karen K.
- et al.
This unit considers how to construct digital objects—i.e., points, lines and areas—out of sets of coordinates and how to represent their attributes and relationships. Strategies for representing this information in a GIS database are presented and illustrated with examples, and issues with each are discussed.