Abstract
Topological relation is one of the basic topics of geographic information systems (GISs), and it has been widely applied in data organization and spatial analysis. It seems whether a simple topological relation can hardly represent complex space situations in some cases. Different topological relations may result in the same expression by some topological relation models, among which the 9-Intersection Model (9IM), and its extended models are well known. In this paper, a detailed model and calculation method for topological relations are proposed, to describe the complex topological relations between lines and regions more exactly. It is better to answer the question, e.g., “How does the road cross the park?” The programs are developed to compute the complex topological relations between a line and region, and the actual area of land use parcels, from which the area of related linear features wait to be subtracted.
Published Version
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