Geographic Information Systems have become of increasing significance for environmental planning, landscape planning and environmental impact studies in recent years. The main reason for this is the need, in Environmental Planning, to compare a great number of area-related data describing the affected natural resources and their sensitivity related to the effects of impacts. because GIS can be ...

This paper studies the development of GIS from a new point of view, which both from the accumulation of GIS scientific articles and the evolution process of GIS using co-citation analysis. After 10 years’ slow development from 1977, the number of GIS scientific literature began to increase rapidly since the early 1990s. By using the newly developed information visualization technology, the auth...

According to the research of problem of data conversion from AutoCAD to GIS, this paper analyzes the characteristics of AutoCAD data and GIS data, and finds out the comparison relationship of graphic data conversion from AutoCAD to GIS. With the aid of the component libraries of ArcEngine and ObjectARX, the research implements the graphic data conversion using c # language in .NET environment, ...

Traditionally watersheds were spatial extents that capture rainwater. Recently it has been identified that unless the watersheds are not managed in an integrated sustainable manner, then not only the water resources but also other resources such as vegetation, fertile soil, fauna and flora get depleted. Rational management of upper and lower parts of a watershed is equally important for the sus...

We have developed a framework for Web-based GIS/database applications which allow users to insert, update, delete, and query data with a map interface displayed by Web browsers. The framework was designed so that a Web-based GIS application that uses ArcIMS as a map server can be easily created, customized, and maintained. In order to achieve this goal, we have created our framework as a collec...

This paper proposes integration of different technologies, techniques and standards to improve the efficiency of 3D mobile GIS applications. The paper describes different challenges that developers face while developing a 3D mobile GIS application. It then investigates different solutions to resolve the problems. Integration of client/server architecture and web services technologies together w...

Geographic information systems (GIS), global positioning systems and remote sensing have been increasingly used in public health settings since the 1990s, but application of these methods in humanitarian emergencies has been less documented. Recent areas of application of GIS methods in humanitarian emergencies include hazard, vulnerability, and risk assessments; rapid assessment and survey met...

Persistent programming languages are targetted primarily at application systems involving complex data structures and relationships, as typi ed by Geographical Information Systems (GIS). The many sophisticated GIS products available today were developed before concepts like persistence and objectorientation had been well-established, and there is an urgent need to construct new GIS technology t...

This paper gives an overview of the recent progress made in the use and application of geographical information systems (GIS) and remotely sensed (RS) satellite sensor data for the epidemiology and control of schistosomiasis in sub-Saharan Africa. Details are given of the use of GIS to collate, map and analyse available parasitological data. The use of RS data to understand better the broad sca...