Steinger and his colleagues shared that GIS software encompasses a broad range of applications which involve the use of a combination of digital maps and georeferenced data. GIS software can be sorted into different categories.
The following open-source desktop GIS projects are reviewed in their work.
GRASS GIS – Geospatial data management, vector and raster manipulation – developed by the U.S. Army Corps of Engineers.
gvSIG – Mapping and geoprocessing with a 3D rendering plugin.
ILWIS (Integrated Land and Water Information System) – Integrates image, vector and thematic data.
JUMP GIS / OpenJUMP ((Open) Java Unified Mapping Platform) – The desktop GISs OpenJUMP, SkyJUMP, deeJUMP and Kosmo all emerged from JUMP.
MapWindow GIS – Free desktop application with plugins and a programmer library.
QGIS (previously known as Quantum GIS) – Powerful cartographic and geospatial data processing tools with extensive plug-in support.
SAGA GIS (System for Automated Geoscientific Analysis) –- Tools for environmental modeling, terrain analysis, and 3D mapping.
uDig – API and source code (Java) available.Besides these, there are other open source GIS tools:
Capaware – A C++ 3D GIS Framework with a multiple plugin architecture for geographic graphical analysis and visualization.
Generic Mapping Tools – A collection of command-line tools for manipulating geographic and Cartesian data sets and producing PostScript illustrations.
FalconView – A mapping system created by the Georgia Tech Research Institute for the Windows family of operating systems. A free, open source version is available.
Kalypso – Uses Java and GML3. Focuses mainly on numerical simulations in water management.
TerraView – Handles vector and raster data stored in a relational or geo-relational database, i.e. a frontend for TerraLib.
Whitebox GAT – Cross-platform, free and open-source GIS software.
Many suppliers are now starting to offer Internet based services as well as or instead of downloadable software and/or data. These can be free, funded by advertising or paid for on subscription.
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