Multi-scale qualitative location: A direction-based model
A direction-based model is proposed to represent qualitative locations at multiple scales. Approaches are developed to derive the direction changes between objects and regions at multiple scales. The methodologies are presented and used to evaluate location and relation consistencies in multi-scale spatial data. The direction-based model is more accurate than the topology-based model.
qualitative location multi-scale spatial data gis qualitative spatial reasoning cell partition direction relations