Quantum GIS (QGIS) is a user friendly Open Source Geographic Information System (GIS) licensed under the GNU General Public License. QGIS is an official project of the Open Source Geospatial Foundation (OSGeo). It runs on Linux, Unix, Mac OSX, and Windows and supports numerous vector, raster, and database formats and functionalities. Quantum GIS provides a continously growing number of capabilities provided by core functions and visualize, manage, edit, analyse data, and compose printable maps. Get a first impression with some screenshots and a more detailed feature list. Quantum GIS is a volunteer driven project. We welcome contributions from in the form of code contributions, bug fixes, bug reports, contributed documentation, advocacy and supporting other users on our mailing lists and the QGIS Forum. If you are interested in actively supporting the project, you can find more information under the development menu and on the QGIS Wiki. We also welcome financial contributions in the form of sponsoring and funding.
Open source gis
Open Source Geographic Information Systems Ajaze Parvez Khan Dehradun,India
DRDOUnder Project Chitra, DRDO is implementing a system with a computational speed of 2-3 Teraflops utilizing commercial off the shelf components and the Open Source Linux Operating System.ISROBhuvan-2D a software application which allows users to surface of the Earth especially Indian Region is developed using open-source software Geospatial solutions (Mapserver, Geoserver, 52 North, OpenLayers).State GovernmentIT@school project is a Free and Open Source initiative by the department of general education, Government of Kerala. This is a state wide FOSS-based education project which has been running successfully for the last five years. Kerala is the first Open Source State of India.
What is Open Source and How Does it Work•Freely available software and source code with limited licensing restrictionson distribution•Collaborative, community-based software development process•Proactive engagement of software users with software developers•The Internet provides the backbone for a virtual software development team Big projects like Linux, Apache, Mozilla Firefox and OpenOffice are supported by Fortune 500 companies like IBM and Sun. OSGeo (Open Source Geospatial) is supported by Autodesk.
Benefits of Open Source Software• Cut down budget, No licensing fees• Excellent tools for research and development• Opportunity for technology exploration• Prototyping and demo• Enables development of highly customized applications based on client’s needs• Development priorities are driven by end-user needs
Why Use Open Source GIS? All proprietary GIS software vendors are using some Open Source GIS components in their products. Like Libgeotiff and GDAL/OGR.• Marketable skills In this ever-changing job market it is a huge benefit to be able to bring a total GIS package to the table• Supported by huge development & support community Backed by large development community. Community is very passionate about helping each other and continually improving software• Low start-up costs It is now possible to install a complete GIS without paying a paisa• Security Arguably more secure than proprietary software. Bugs are found and fixed quickly
Why Use Open Source GIS? (cont’d)•Works on all major platforms (Mac, Linux, Windows)•Theres nothing missing Desktop GIS, Spatial Database Storage, Server... Tons of analysis tools ,Raster, Vector ..(No licensing worries) Community developed add-ons•Works with existing GIS data Import .shp files, most major formats Export to most major formats ArcSDE now connects to PostGIS (OS Database)•No file format lock-in
OSGEO:The OpenSourceGeospatialFoundationFOSS4G:Free and OpenSourceSoftware forGeospatial All of the products are both free and open-source backed by various organizations
Open source GIS Free Alternatives For our GIS Needs• GRASS - (Geographic Resources Analysis Support System) http://grass.osgeo.org/• OSSIM - Advanced remote sensing & image processing http://www.ossim.org/OSSIM/OSSIMHome.html• Quantum GIS - Desktop GIS http://www.qgis.org/• gvSIG – Gis by Govt of Spain http://www.gvsig.org/• uDig – User friendly Desktop Internet Gis http://udig.refractions.net/• GDAL, OGR - Translator library for geospatial data formats http://www.gdal.org/• PostgreSQL/ PostGIS - Spatial Database http://www.postgresql.org/ , http://postgis.refractions.net/• GeoServer - Server for Online Publishing/ Data Sharing http://geoserver.org/display/GEOS/Welcome• OpenLayers - Web Application Programming Interface (API) http://openlayers.org/ There are many more options, but these are favorites so far.
GRASSGeographic Resources Analysis Support System GRASS is an official project of the Open Source Geospatial Foundation. GRASS is a long-standing, complete GIS system. It was originally written in Unix by US Army. The GRASS community is enormous, and world-wide, with commensurate support resources. •Geospatial data management •Analysis •Image processing GRASS is currently used in academic and commercial settings around the world, as well as •Graphics/maps production by many governmental agencies and environmental consulting companies. •Spatial modeling •Visualization •Now theres a simple user interface through QGIS
OSSIMOpen Source Software Image Map C++ software library that provides advanced remote sensing, image processing, and geo-spatial functionality Includes orthorectification, precision terrain correction, rigorous sensor models, very large mosaics, and cross sensor fusions, a wide range of map projections and datums, and a large range of commercial and government data formats OSSIM Planet - an accurate 3D global geo-spatial viewer that is built on top of OSSIM
Quantum GIS (QGIS)QGIS is a GIS,extremely simple tooperate, and creates configuration filesfor the MapServer web map server. FREE Desktop application – very user friendly Can work directly with .shp file, WMS, too many to list Any Platform – Windows, Mac, Linux Plugins available (Similar to Firefox add-ons) Allow spatial analysis, 3-D analysis, statistical analysis User interface for GRASS tools. OGR interface allows use of TONS of formats PostGIS interface MapServer export
gvSIG is a geographic information system (GIS) gvSIG designed for capturing, storing, handling, analyzing and deploying any kind of referenced geographic information in order to solve complex management and planning problems. gvSIG is known for having a user-friendly interface, being able to access the most common formats, both vector and raster ones.gvSIG is known for:•Integrating in the same view both local (files, databases) and remotedata through OGC standards.•Being designed to be easily extendable, allowing continuous applicationenhancement, as well as enabling the development of tailor-madesolutions.•Being developed using Java, and being availablefor Linux, Windows and Mac OS X platforms
uDig is an java based open source desktop Gis application framework, built with Eclipse Rich Client technology.uDig is: •User friendly, providing a familiar graphical environment for GIS users; •Internet oriented, consuming standard (WMS, WFS, WPS) and de facto (GeoRSS, KML, tiles) geospatial web services; and, •GIS ready, providing the framework on which complex analytical capabilities can be built, and gradually subsuming those capabilities into the main application. •Conforms to important Open Geospatial Consortium standards. Refractions Research supports uDig
GDAL, OGRGDAL is a translator libraryfor raster geospatial dataformats...It also comes with avariety of useful command The OGR Simple Featuresline utilities for data Library is a C++ open sourcetranslation and processing. library (and commandline tools) providing read (and sometimes write) access to a variety of vector file formats including ESRI Shapefiles, S-57, SDTS, PostGIS, Oracle Spatial, and Mapinfo mid/mif and TAB formats.
PostgreSQL + PostGIS• PostgreSQL is a powerful, open source object-relational database system• A true spatial database Conforms to Open Geospatial Consortium standards• Secure storage for both spatial and non spatial dataPostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for (GIS), much like ESRIs SDE
GeoServerGeoServer is an open source software server written in Javathat allows users to share and edit geospatial data.GeoServer is the reference implementation of the OpenGeospatial Consortium (OGC) Web Feature Service (WFS) andWeb Coverage Service (WCS) standards, as well as a highperformance certified compliant Web Map Service (WMS). Outputs: WMS, WFS, KML, GeoJSON, GeoRSS, more.. Share and edit geospatial data Open standards allow publishing from any major spatial data source including: shapefiles, SQL Server, PostGIS, DB2, Oracle, WFS, TIFF Images, MySQL Integrates with existing APIs (Google, yahoo, etc.) Connects to ArcGIS Server WMS can be easily added into existing ArcMap .mxds
MapServer is an open source development environment for building spatiallyenabled internet applications. MapServer was developed by the University ofMinnesota with support from NASA, which needed a way to make its satelliteimagery available to the public. Developer(s) Stephen Lime Initial release 1994 Stable release 6.0.2 / February 8, 2012; 12 months ago Written in C / C++ Platform Cross-platform Type GIS software Website www.mapserver.org
An after-thought..If resource is limited, do not want to reinvent the wheel and really want that what is made should be world class ,and be used , switch to FOSS because Future is open source