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open concept in GIS and open source software for GIS analysis
- 1. An Introduction OfOpen Concept In GIS And Open Source Software For GIS Analysis Presented By: Binod .P. Poudel
- 2. Geographic Information System(GIS) (introduction tobasics) • A Geographical Information System is a collection of spatially referenced data (i.e. data that have locations attached to them) and the tools required to work with the data • In General , Computer system for storing, capturing, quering , analyzing and displaying geographic data
- 3. Who Would UseGIS And Why? Anybody who needs to work with spatially referenced data. some examples are: • Municipalities maintain large and complex databases that contain the street locations, • Hydro and phone companies use them to record locations of their lines, both above and below ground, and for deciding where to put new ones. • Emergency services like 911 have to have a very detailed municipal address database in order to route the vehicles to the emergency as quickly as possible.
- 4. Introduction to opensource software TOPIC COVERED • What is open source software • Merits of using open source software • Open source concept in GIS • Benefits of using open source concept in GIS • Open source software for GIS analysis
- 5. What is opensource software? • Open source software is software with source code that anyone can inspect, modify, and enhance • Users of open source software can permitted to use, copy, study, change, improve and even redistribute • Some of popular open source software are: Mozilla's Firefox web browser, PHP scripting language , Python programming language, Apache HTTP web server (Source code : It's the code computer programmers can manipulate to change how a piece of software a program or application works)
- 6. Benefits of usingopen source software • people have more control over these kind of software. they can use these software for any purpose they wish not merely the way someone else thinks they should. • These software are more secure and stable. Because so many peoples can work on a piece of open source software without asking for permission from original authors, they can fix, update, and upgrade open source software more quickly • These software has community. Open source software often inspires a community of users and developers to form around it. In its community there are the peoples who produce, test, use, promote, and ultimately affect the software they love
- 7. Open source conceptin GIS Many industries and groups have benefited from open source technology and GIS community is one of them. Open sources technology allowed new and exciting ways to share geographic information. The creation of open source mapping software has allowed for user from around the world to contribute what they know about their neighborhood and local environment and help to create better understanding of the whole world. In the past ,one expert would use large amount of equipment in highly expensive expeditions to manage relatively small part of world instead open source mapping software have a large amount of users who can use the tech they already have like laptops, mobiles et-cetera to do the same task.
- 8. Benefits of usingOpen source concept in GIS • Let's understand the benefit of open source GIS with following case: For example let's say a specific region of the world is affected by a natural disaster and the rescue team needs the map with the information's like nearest medical stores, hospitals, shortest routes and many more. Because of the large community of open source software users when this data is needed it can be generated relatively quickly .And also these platforms are open and hosted online the data can be easily accessed when it is needed
- 9. Open Source Software ForGIS Analysis • SAGA GIS • GeoDa • GRASS GIS • ArcGIS • MapWindow • FalconView • OpenJump • Maptitude • QGIS
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