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73 lines
2.9 KiB
Markdown
73 lines
2.9 KiB
Markdown
# About QGIS
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[](https://travis-ci.org/qgis/QGIS)
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QGIS is an Open Source Geographic Information System. The project was born in
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May of 2002 and was established as a project on SourceForge in June of the same
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year. We've worked hard to make GIS software (which is traditionally expensive
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commercial software) a viable prospect for anyone with basic access to a
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Personal Computer. QGIS currently runs on most Unix platforms, Windows, and OS
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X. QGIS is developed using the Qt toolkit (http://qt.io) and C++. This
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means that QGIS feels snappy to use and has a pleasing, easy to use graphical
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user interface.
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QGIS aims to be an easy to use GIS, providing common functions and
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features. The initial goal was to provide a GIS data viewer. QGIS has
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reached that point in its evolution and is being used by many for their
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daily GIS data viewing and editing needs. QGIS supports a number of raster
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and vector data formats, with new support easily added using the plugin
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architecture.
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QGIS is released under the GNU Public License (GPL) Version 2. Developing
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QGIS under this license means that you can (if you want to) inspect and
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modify the source code and guarantees that you, our happy user will always
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have access to a GIS program that is free of cost and can be freely
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modified.
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## Supported raster formats include:
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* Grass
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* USGS DEM
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* ArcInfo binary grid
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* ArcInfo ASCII grid
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* ERDAS Imagine
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* SDTS
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* GeoTiff
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* Tiff with world file
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## Supported vector formats include:
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* ESRI Shapefiles
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* PostgreSQL/PostGIS
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* GRASS
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* Spatialite
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* Other OGR supported formats
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## Note
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Please follow the installation instructions carefully.
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After extracting the distribution, you can find the HTML version of the
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installation document in qgis/doc/index.html. The installation document is
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also available as PDF in the same directory.
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## Help us
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Please submit bug reports using the [QGIS bug tracker](http://hub.qgis.org/)
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When reporting a bug, either login or, if you don't have a qgis trac, provide
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an email address where we can request additional information.
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## Support
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You can get support in the following ways:
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- Using the QGIS community site at http://qgis.org
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- Joining the [qgis-users mailing list](http://lists.osgeo.org/mailman/listinfo/qgis-user)
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- Using IRC by joining the #qgis channel on irc.freenode.net. Please wait
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around for a response to your question as many folks on the channel are
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doing other things and it may take a while for them to notice your question.
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QGIS is on GitHub at http://github.com/qgis/QGIS. If you wish to contribute
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patches you can fork the project, make your changes, commit to your
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repository, and then issue a pull request. The development team can then
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review your contribution and commit it upstream as appropriate. See
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http://help.github.com/forking/ and http://help.github.com/pull-requests/
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for more details.
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