Free GIS Software: OpenMap, Orbit EOS, Post GIS, Quantum GIS, Orbit Explorer, RevPG

Free & Open Source GIS Software Part 8

OpenMap is a Java Beans based toolkit for building applications and applets needing geographic information. Using OpenMap components, you can access data from legacy applications, in-place, in a distributed setting. At its core, OpenMap is a set of Swing components that understand geographic coordinates.

Orbit EOS Lite Free GIS Map Server - EOS is the scalable, extenable Orbit Server system, used for corporate and internet GIS data sharing. EOS supports most popular data formats, and can be extended with functionalities such as geoprocessing or gis-data related database access and transaction control.

Orbit Explorer GIS Freeware - Orbit Geospatial Technologies presents Orbit Explorer Freeware 4.4 for Windows 32 and 64bit, 4.1 for Linux and Unix 32 and 64bit, and 4.3 for Mac OSX systems on G4, G5 and Intel Dual Core machines. The Orbit Explorer Desktop solution now comes with full OGC WMS supportover 50 new and improved functionalities.

PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI's SDE or Oracle's Spatial extension. PostGIS follows the OpenGIS "Simple Features Specification for SQL" and has been certified as compliant with the "Types and Functions" profile.

Quantum GIS (QGIS) is a user friendly Open Source Geographic Information System (GIS) that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports vector, raster, and database formats. QGIS is licensed under the GNU General Public License. QGIS lets you browse and create map data on your computer. It supports many common spatial data formats (e.g. ESRI ShapeFile, geotiff). QGIS supports plugins to do things like display tracks from your GPS. QGIS is Open Source software and its free of cost.

RevPG (Revision and Product Generation software) - RevPG is a collection of ARC/INFO Arc Macro Language (AML) programs, C routines, shell scripts, and interface menus that support the revision of digital line graph (DLG) data with ARC/INFO.

Hope these prove useful. If you are new to GIS, check out the Learn2Map GIS Tutorial and Atlas. We have more free GIS software available and there is plenty of free data and shapefiles that will work with these programs.

Mike