Engineer, Swapan N.2020-12-152020-12-151983http://hdl.handle.net/10919/101429In this thesis we describe a spatial information system. A spatial data structure is used as the building block of the system. Prototypes, a high level query language and an associated retrieval scheme particularly designed for the hierarchical and relational spatial data structure are discussed.vii, 116 leavesapplication/pdfenIn CopyrightLD5655.V855 1983.E635Data structures (Computer science)Geography -- Data processingThesis