On spatial fuzzy dynamic relationships within GIS
Wen Liu · Meitan xuebao · 2001
To design an effective query language for both dynamic spatial relationships and fuzzy spatial relationships in GIS, we have to study spatial representation of spatial data with considering of their dynamic and uncertain characters. This paper presents an analytical model of spatial objects, distinguishes and defines dynamic spatial relationship and uncertain spatial relationship. A new approach is proposed to describe the spatial relationship. On the basis of this, we build up a formal description for modeling those two spatial relationships respectively and give a mean of identifying them.