Calculation and Search for the Spatio-temporal Topological Relation of Spatio-temporal Object
Yingchun Song · Journal of Hunan University · 2010
This paper focuses on how to build a suitable data model of time combined with space,namely,a spatio-temporal data model.Using 9-Intersection model and time expression based on time-slice,a qualitative model for the spatio-temporal topological relations between temporal GIS objects was defined.Using a algebraic method,the computation rules for spatio-temporal topological relations were obtained.Therefore,we could rebuild historical state of spatio-temporal data,trace the changes of spatio-temporal data,deal with all time-based querying and realize the calculation of the temporal and spatial topological relation of spatio-temporal objects.