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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. ... [More] It supports many common spatial data formats (e.g. ESRI ShapeFile, geotiff). [Less]

4.37143
   
  0 reviews  |  151 users  |  666,045 lines of code  |  93 current contributors  |  Analyzed 6 days ago
 
 

PostGIS is a spatial database extension for PostgreSQL. PostGIS complies with the OpenGIS "Simple Features for SQL" specification, and provides high-performance spatial SQL access to GIS objects in the database.

4.79592
   
  1 review  |  148 users  |  283,693 lines of code  |  9 current contributors  |  Analyzed 10 days ago
 
 

GRASS GIS, commonly referred to as GRASS (Geographic Resources Analysis Support System), is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS GIS is currently ... [More] used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS GIS is an official project of the Open Source Geospatial Foundation (OSGeo). [Less]

4.76471
   
  0 reviews  |  63 users  |  1,292,172 lines of code  |  19 current contributors  |  Analyzed 7 days ago
 
 

Mapnik is a Free Toolkit for developing mapping applications. It's written in C++ and there are Python bindings to facilitate fast-paced agile development. It can comfortably be used for both desktop and web development

4.6
   
  0 reviews  |  34 users  |  255,319 lines of code  |  23 current contributors  |  Analyzed 1 day ago
 
 

GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS). As such, it aims to contain the complete functionality of JTS in C++. This includes all the OpenGIS "Simple Features for SQL" spatial predicate functions and spatial operators, as well as specific JTS topology functions such as IsValid().

4.5
   
  0 reviews  |  34 users  |  143,398 lines of code  |  2 current contributors  |  Analyzed 3 days ago
 
 

GeoNetwork opensource is a standardized and decentralized spatial information management environment, designed to enable access to geo-referenced databases, cartographic products and related metadata from a variety of sources, enhancing the spatial information exchange and sharing between ... [More] organizations and their audience, using the capacities of the internet. This approach of geographic information management aims at facilitating a wide community of spatial information users to have easy and timely access to available spatial data and to existing thematic maps that might support informed decision making. GeoNetwork opensource was established in 2001 and used a CVS code repository before moving to SVN in 2007. [Less]

4.72727
   
  0 reviews  |  31 users  |  2,419,909 lines of code  |  30 current contributors  |  Analyzed 1 day ago
 
 

The JTS Topology Suite is an API of 2D spatial predicates and functions. It has the following design goals: * JTS conforms to the Simple Features Specification for SQL published by the Open GIS Consortium * JTS provides a complete, consistent, robust implementation of fundamental 2D spatial ... [More] algorithms * JTS is fast enough for production use * JTS is written in 100% pure Java( * JTS is open source (under the LGPL license) [Less]

4.9
   
  0 reviews  |  25 users  |  170,662 lines of code  |  1 current contributor  |  Analyzed 9 days ago
 
 

MapGuide Open Source is a web-based platform that enables users to quickly develop and deploy web mapping applications and geospatial web services. MapGuide features an interactive viewer that includes support for feature selection, property inspection, map tips, and operations such as buffer ... [More] , select within, and measure. MapGuide includes an XML database for managing content, and supports most popular geospatial file formats, databases, and standards. MapGuide can be deployed on Linux or Windows, supports Apache and IIS web servers, and offers extensive PHP, .NET, Java, and JavaScript APIs for application development. [Less]

4.8
   
  0 reviews  |  17 users  |  517,170 lines of code  |  7 current contributors  |  Analyzed 9 days ago
 
 

Feature Data Objects (FDO) is an API for manipulating, defining, and analyzing geospatial information regardless of where it is stored. FDO uses a provider-based model for supporting a variety of geospatial data sources, where each provider typically supports a particular data format or data store.

4.8
   
  0 reviews  |  14 users  |  1,552,225 lines of code  |  10 current contributors  |  Analyzed 4 days ago
 
 

SharpMap is an easy-to-use mapping library for use in web and desktop applications. It provides access to many types of GIS data, enables spatial querying of that data, and renders beautiful maps.

5.0
 
  0 reviews  |  14 users  |  1,969,098 lines of code  |  11 current contributors  |  Analyzed 2 months ago
 
 
 
 

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