A Direct Manipulation Interface for Geographical Information Processing
Ming‐Hsiang Tsou, Barbara Pfeil Buttenfield · 1997
Today the processing and analysis of geographical information is complicated by an increasing volume of information. We present a system to directly manipulate geographical data by using object-oriented approaches and graphic user interface (GUI) design. The study concentrates on vector data and overlay operations. A case study has been conducted by using this system for potential site selection in the Ellington, Connecticut area. The GUI design of the system uses icons to represent the geographical data and their operations. Object-oriented approaches are adopted in establishing a knowledge-based GIS system. This study suggests that the next generation of GIS user interfaces should provide an intelligent agent to assist users to search, query and operate on data. Keywords: direct manipulation, object-oriented approach, graphical user interface.