Abstract
There is growing needs for web based GIS for easy and fast dissemination, sharing, displaying and processing of spatial information which in turns helping in decision making for various natural resources based applications. In order to make a cost effective implementation, operation and maintenance of spatial information over the web, a cheaper yet feature rich alternative to commercial software is required which can be fulfilled by Open Source GIS software. This paper conveys an efficient approach to customize and integrate an open source web GIS system based on Mapserver as a web GIS server and PostgreSQL/PostGIS as an object oriented relational database management system (ORDBMS) for effective dissemination, sharing and management of spatial information over the internet. An open source web application tool built on top of MapScript using the PHP programming language has been used as for development of interactive user interface. The configurable Web Mapping Client Components (CWC2) tags have been added to HTML template pages in order to deploy the mapping contents to a web application. It is observed that the present system developed using open source software enables user to view, update, customized retrieval, query and analysis of natural resources information for specific needs.
Highlights
Geographical data services via internet require proper management of spatial and non-spatial data
This paper conveys an efficient approach to customize and integrate an open source web GIS system based on Mapserver as a web GIS server and PostgreSQL/PostGIS as an object oriented relational database management system (ORDBMS) for effective dissemination, sharing and management of spatial information over the internet
The configurable Web Mapping Client Components (CWC2) tags have been added to HTML template pages in order to deploy the mapping contents to a web application
Summary
Geographical data services via internet require proper management of spatial and non-spatial data. The development of a Web-based system by integrating GIS and ORDBMS allow the user to operate the system without having to understand with the underlying intricacies of GIS and ORDBMS technologies. It would allow sharing of spatial information and technical expertise among varied users. The following sections describes various steps and methodologies of WebGIS development as part of potential sites mapping for sericulture development in “Champhai” district of Mizoram, India It is developed by integrating the Minnesota Mapserver [3] (UMN), PHP, Apache Web Server, Chameleon, PostGIS [4] and PostgreSQL [5] Object-Relational data-base by adopting a Web based client/server environment. To access the spatial database by the user, a Web browser and access to the Internet only is needed
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