QGIS supports vector, raster, and database formats and lets you browse and create map data on your computer.
Quantum GIS (QGIS) supports many common spatial data formats (e.g. ESRI ShapeFile, geotiff). QGIS supports plugins to do things like display tracks from your GPS.
QGIS aims to be an easy to use GIS, providing common functions and features. The initial goal was to provide a GIS data viewer. QGIS has reached that point in its evolution and is being used by many for their daily GIS data viewing needs. QGIS supports a number of raster and vector data formats, with new support easily added using the plugin architecture.
Here are some key features of "Quantum GIS":
· Support for spatially enabled PostgreSQL tables using PostGIS
· Support for ESRI shapefiles and other vector formats support by the OGR library
· MapInfo files
· GRASS integration, including view, edit, and analysis
· On the fly projection of vector layers
· Map composer
· Identify features
· Display attribute table
· Select features
· Label features
· Persistent selections
· Save and restore projects
· Support for raster formats supported by the GDAL library
· Change vector symbology (single, graduated, unique value, and continuous)
· SVG markers symbology (single, unique value, and graduated)
· Display raster data such as digital elevation models, aerial photography or landsat imagery
· Change raster symbology (grayscale, pseudocolor and multiband RGB)
· Export to Mapserver map file
· Digitizing support
· Map overview
· Improved vector and attribute editing
· Improved measure tools with area measuring
· Attribute searching
· New legend structure
· Refactoring of API to allow the use of QGIS libraries in mapping applications
· Improved MapServer export tool
· Vector layer transparency and antialiasing
· GRASS support in all platforms
· Enhanced GRASS support and toolbox commands
· Enhanced vector editing, including copy, cut, paste, snapping and vertex editing
· Shapefile/OGR layer editing
· Qt 4.2.2 is required (comes with the installer package).
· The Expat XML Parser is required for the GPS plugin.
· The raster georeferencer plugin requires the GNU Scientfic Library (GSL).
· SQLite is always required.
What's New in This Release: [ read full changelog ]
· QGIS Browser: a stand alone app and a new panel in QGIS. The browser lets you easily navigate your file system and connection based (PostGIS, WFS etc.) datasets, preview them and drag and drop items into the canvas.
· DB Manager: the DB manager is now officially part of QGIS core. You can drag layers from the QGIS Browser into DB Manager and it will import your layer into your spatial database. Drag and drop tables between spatial databases and they will get imported. You can use the DB Manager to execute SQL queries against your spatial database and then view the spatial output for queries by adding the results to QGIS as a query layer. You can also create, edit, delete, and empty tables, and move them to another schema.
· Importing a layer into a database between QGIS Browser and DB Manager.
· Importing a layer into a SpatiaLite database from a PostGIS database in DB Manager.
· New symbol layer types: Line Pattern Fill, Point Pattern Fill.
· Examples of point and line fills.