TOP 10 OPEN SOURCE FREE GIS SOFTWARE FOR GEOSPATIAL PROFESSIONAL
1. QGIS: QGIS acts as Geographic Information System (GIS)
software that allows users to create and export graphical maps as well as
analyze and edit spatial data on Microsoft Windows, Linux, macOS, Android (beta)
platforms. QGIS supports both raster and vector data layers. It is written by
C++, Python, and Qt programming languages. QGIS is also known as Quantum GIS.
Key
Features:
i) Geospatial analysis and mapping.
ii) Terrain analysis
and environmental resource mapping.
iii) Disaster risk
reduction analysis, etc.
2.
SAGA GIS: SAGA OR System for
Automated Geoscientific Analyses is a Geographic Information system (software)
which is used in geospatial data processing and analysis. This software was
written using C++ programming language. SAGA GIS software runs under the
Windows and Linux operating system.
Key
Features:
i)
Best for automated Geoscientific analysis.
ii) It is capable of
processing LIDAR data.
iii) It offers 3D
visualization, Geostatistic, and Terrain analysis functions.
3.
GRASS GIS: It is an open source
and free Geographical Information System (GIS) software. Geographic Resources
Analysis Support System is the full form of GRASS. It is capable to handling
the raster, topological vector, image processing and graphic data layers. This
software is written with the help of C, C++, Python programming languages.
GRASS GIS software runs under the Linux, Macintosh, Sun Solaris, Silicon
Graphics Irix, HP-UX, DEC-Alpha, and Windows OS operating systems.
Key
Features:
i) It can helps in
geospatial data management and analysis.
ii) GRASS GIS is used
for image processing, producing graphics and maps, spatial and temporal
modeling, and visualizing.
iii) GRASS GIS is best
for the land management and environmental planning.
4.
Open JUMP: It is an open source Geographic
information system (GIS) software which is written in java programming
language. Supported platforms are Windows, Macintosh, Linux, and UNIX.
Key Features:
i)
It is capable to edit and read geometry.
ii)
Best for the java mapping users.
iii)
Handle large data sets and interpret vector formats.
5. gvSIG: gvSIG is a geographic
information system, that is, a desktop application designed for management and
planning geospatial data. This software is written by the java programming
language. Operating systems are Windows, Linux, and MacOS.
Key Features:
i)
3D mapping is the best use.
ii)
Users can assess geoprocessing networks without advanced technical knowledge.
iii)
Smooth vector representation.
6. uDIG:
uDIG or user-friendly Desktop Internet GIS is a free GIS software which used
for internet GIS. This software was designed by java programming language.
Windows, MacOS and Linux are supported operating system for the uDIG.
Key Feature:
i)
It is best for the basic GIS mapping.
ii)
Environmental projects like biodiversity and forests management can be done.
iii)
It is built based on Eclipse Rich Client technology.
7. Map Windows GIS:
Map Windows is an open source free GIS desktop applications and set of
programmable mapping elements. United States Environmental Protection Agency
was developed Map Windows GIS as a basic GIS platform. It was written by the C
programming language. The Operating system is Windows.
Key Features:
i)
Best for the watershed basins analysis.
ii)
it is capable for the various GIS Modeling.
8. Whitebox GAT: it is an open
source Geographical Information system (GIS) and remote sensing software
package that provide advanced geospatial analysis.
Key Features:
i)
Best for the advanced geospatial analysis.
ii)
It can be used in both environmental research and geomatics industry analysis.
9. ILWIS: ILWS
or Integrated Land and Water information Systems is a Geographic Information
system and also remote sensing software. It
is now a free open source software written in C ++. Supporting operating system
is Windows.
Key features:
i)
Best for the planner, biologists, water managers and geospatial users.
ii)
Provides spatial data editing, analysis, graphical presentation.
10. GeoDa:
GeoDa is a user-friendly free and open source GIS software tool that serves as
an introduction to spatial data analysis.
Key Feature:
For new users it provides as an introduction function to spatial data analysis.
Data exploration in statistics is the main functionality of this software.
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