Querying and visualization of geometric data
Edward P. F. Chan, Jonathan M. T. Wong · 1996
This paper describes the retrieval, browsing and visualization of data for a spatial database system developed at the University of Waterloo.The prototype, called QL/G, supports geometric data types like general regions, lines and points as built-in data types.A Graphical User Interface (GUI), written in X/Motif and a persistent version of C++, is provided for users as an effective tool for querying and visualizing data retrieved.The interface is simple, user-friendly and flexible, and provides the necessary functionality identified in existing literature for geographic applications.