QGIS is an opensource and multiplatform geographic information system (GIS) released under the GPL license. It support to manage raster and vector formats and databases. Several public and private organizations use QGIS software as part of their activities and many use it instead of GIS market leaders GIS software (ArcGIS, Mapinfo Professional, Geomedia, Global Mapper, SuperGIS). Why? What has contributed to its growing success, to be one of the most used GIS tools ?
- QGIS is an opensource office GIS software therefore free
- This software is maintained by a wide community through use of plugins (Python or C++)
- It has excellent ergonomics close to those of commercial software like ArcGIS, Mapinfo, Geomedia, Global Mapper, etc.
- QGIS read and write most of raster and vector standard formats (shp, tab, kml, dxf/dwg, dgn, gpx, etc)
- It permits to connect to web services and external sources of data (WFS and WMS server, odbc, ...)
- It's the GIS software natively connected to the opensource spatial database PostgreSQL / PostGIS
- QGIS is considered as a simplified interface of GRASS
- It brings together powerful spatial analysis and statistics extensions
- It has a plugin to acquire the different raster maps of Google Maps, BING maps or Open Street maps
- It has a plugin which implements "R" programming language and mathematics environment
- QGIS provide a bridge to other projects like Open Street Map
- Finally QGIS has dozens of free plugin that add many new features
2D3D.GIS official sponsor of the QGIS fundation.