Abstract
In this paper we present a graphical query language for Geographical Information System. This language is based on a graphical Query-By-Example-like (QBE) philosophy. A set of graphical primitives (icons) represent data or operations such as inclusion, intersection, etc. The user-defined query is made by composition of these icons. The application of the icons defines the query as the data are supposed to be. This graphical query is then transformed into a functional-based-language query. This expression is compiled into specific Data Management System orders or graphical operators. The main contributions of this language are its simplicity to express a query and its representative power.
CIGALES stands for Cartographical Interface Generating an Adapted Language for Extensible Systems.
This work has been partially financed by CGI / Fleximage
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© 1990 Springer-Verlag/Wien
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Mainguenaud, M., Portier, MA. (1990). Definition of Cigales: A Geographical Information System Query Language. In: Tjoa, A.M., Wagner, R. (eds) Database and Expert Systems Applications. Springer, Vienna. https://doi.org/10.1007/978-3-7091-7553-8_44
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DOI: https://doi.org/10.1007/978-3-7091-7553-8_44
Publisher Name: Springer, Vienna
Print ISBN: 978-3-211-82234-0
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