QGIS is a cross-platform (Linux, Windows, Mac) open source application with many common GIS features and functions. The major features include: - View and overlay vector and raster data in different formats and projections without conversion to an internal or common format.
Supported formats include: - spatially-enabled PostgreSQL tables using PostGIS and SpatiaLite,
- most vector formats supported by the OGR library*, including ESRI shapefiles, MapInfo, SDTS and GML.
- raster formats supported by the GDAL library*, such as digital elevation models, aerial photography or landsat imagery,
- GRASS locations and mapsets,
- online spatial data served as OGC-compliant WMS or WFS;
Create maps and interactively explore spatial data with a friendly graphical user interface. The many helpful tools available in the GUI include: - on the fly projection,
- print composer,
- overview panel,
- spatial bookmarks,
- identify/select features,
- edit/view/search attributes,
- feature labeling,
- vector diagram overlay
- change vector and raster symbology,
- add a graticule layer,
- decorate your map with a north arrow, scale bar and copyright label,
- save and restore projects
Create, edit and export spatial data using: - digitizing tools for GRASS and shapefile formats,
- the georeferencer plugin,
- GPS tools to import and export GPX format, convert other GPS formats to GPX, or down/upload directly to a GPS unit
Perform spatial analysis using the fTools plugin for Shapefiles or the integrated GRASS plugin, including:
- map algebra,
- terrain analysis,
- hydrologic modeling,
- network analysis,
- and many others
Publish your map on the internet using the export to Mapfile capability (requires a webserver with UMN MapServer installed)
Adapt Quantum GIS to your special needs through the extensible plugin architecture.
* OGR-supported database formats are not yet supported in QGIS. In general, data formats supported by GDAL/OGR depend on the installed GDAL binary package and can vary.
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