Internet-enabled GIS Using Free and Open Source Tools
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Internet-enabled GIS can be developed using free and open source tools like MapServer, GeoServer, TileCache, and OpenLayers. Open source GIS software allows data and applications to be freely shared, adapted, and improved by a community. Pre-rendering map tiles improves rendering speed compared to generating maps from source data for each request. The open source GIS community collaborates to build and enhance software and data.
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Student of BABed(ITEP, Secondary stage)in History at Guru Nanak Dev University Amritsar Punjab 🙏🙏
Operations Management (Dr. Abdulfatah Salem).pdf
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Operations Management (Dr. Abdulfatah Salem).pdf
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Editor's Notes
- #2: So, what exactly is open source? If you're not familiar with the term, it is almost as simple as it sounds. \"Open Source\" is software where the source code has been made freely available for viewing, adapting and redistributing. But it's more than just software, it's community-driven software. Programmers dedicate time and energy to develop these software tools to fill a gap in the current software market or improve on what is currently being offered. Open Source software is a precursor to the Open Content movement that has been generating buzz in the media as music and video are being resampled and redistributed. Open Source is really about this culture of collaboration. Some observations about open source development were first covered by Eric Raymond in his 1997 essay \"The Cathedral and the Bazaar\"
- #3: Well, ESRI is our Cathedral. They have developed the software that has created de facto standards for GIS analysis and storage. The wizards and monks producing ArcGIS 9.4 are hard at work and occasionally they entice us with a glimpse of the new software, but we're not actually going to get our hands on it until they bless the latest version with a release. Being the Cathedral, they offer everything under one roof, which is plus considering you can get all you need from them.
- #4: On the other hand, the Bazaar of open source GIS is comprised of individuals and a few small firms dedicated to creating and updating GIS software that fills a certain niche. The vendors in the Bazaar give you free access to the latest versions of their software. They'll give you access to nightly builds, so you can use (and bug test) the functionality introduced that day. There isn't a complete open source GIS package yet that can do everything from desktop to server to mobile. However, due to the fact that all of these open source programs in the Bazaar speak the same languages, you can mix and match your server-side GIS implementation. So you decide which program is right for your application.
- #5: Open Source can be accessible. - Simply making data \"accessible\" via FTP and ZIP files is no longer enough. The public needs access to digital cartography. Digital cartography differs from a PDF of a map in that it is interactive, intuitive and engaging.
- #6: Open Source can be dependable. - The NYCityMap is what most people would classify as an \"enterprise\" level application. It handles a massive amount of GIS data and must be able to serve hundreds of concurrent users.
- #7: Open Source can be easy. – The White House added this map of those responding to the President's call for change. Each one of those points is a story submitted to the White House. The only way to effectively show the distribution of those responding to the call is with a map. This map, using OpenLayers, is easy to add to the page and cost the government zero in licensing.