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MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Sun Microsystems.
PostgreSQL is a powerful, open source relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major
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operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows. [Less]
Drupal is an open source content management platform, allowing an individual or a community of users to easily publish, manage and organize a great variety of content on a website.
Equipped with a powerful blend of features, Drupal is able to
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support community sites, blogs, portals and more.
This is the contributions repository containing contributed modules, themes, translations and installation profiles. You can find the Drupal core project at http://ohloh.net/projects/3189. [Less]
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.
OpenLayers is a web mapping framework, allowing users to pull in disparate sources of data and display them in an AJAX mapping interface.
MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web.
A full-featured, Free Source Software (GNU/LGPL), multilingual, Wiki/CMS/Groupware hybrid written in PHP and maintained by an active and international community of volunteer contributors.
Major features include articles, forums, newsletters
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, blogs, a file/image gallery, a Wiki, drawing, trackers, a directory, polls/surveys and quizzes, a FAQ, chat, a banner management system, a calendar, maps, charts, Mobile Tiki (PDA and WAP access), RSS feeds, a category system, a theme control center, workflow engine, live support, Shoutbox, ACLs, and more.
The project is LGPL. The notes below about "may conflict with GPL" are caused because TikiWiki includes tripled licensed code. Please see: http://www.ohloh.net/forums/10/topics/1730 [Less]
GDAL is a translator library for raster geospatial data formats. The related OGR library (which lives within the GDAL source tree) provides a similar capability for simple features vector data.
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
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you browse and create map data on your computer. It supports many common spatial data formats (e.g. ESRI ShapeFile, geotiff). [Less]
OpenStreetMap is a free editable map of the whole world. It is made by people like you.
OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.
eZ Publish is an enterprise open source content management system and development framework with functionality for web publishing, intranets, e-commerce, extranets and portals.
GeoServer connects your information to the Geospatial Web.
With GeoServer you can publish and edit data using open standards. Your information is made available in a large variety of formats as maps/images or actual geospatial data. GeoServer's
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transactional capabilities offer robust support for shared editing. GeoServer's focus is ease of use and support for standards. [Less]
PROJ.4 - Cartographic Projections library
Commonly referred to as GRASS, this is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and
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commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. [Less]
GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data, for example to implement Geographic Information Systems (GIS). The GeoTools library implements Open Geospatial
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Consortium (OGC) specifications as they are developed, in close collaboration with the GeoAPI and GeoWidgets projects. [Less]
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().
Mapbender is an OSGeo Project about maps. The software is used to implement portal web sites for geo spatial data and maps. Mapbender can upload, manage, combine and request OGC OWS compliant map and feature services like MapServer and GeoServer.
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Mapbender is used to orchestrate these services in distributed web based architectures.
Mapbender is implemented in PHP, JavaScript, SQL and XML, provides a data model and interfaces for displaying, navigating and querying OGC compliant map services by authenticated and authorized users.
Mapbender is usually deployed in large architectures. Full multi client capability enables to operate Mapbender as a public portal with comprehensive cascading user management hierarchies. [Less]
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
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information exchange and sharing between 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. [Less]
World Wind, an open source 3D interactive world viewer, was created by NASA's Learning Technologies project, and released in mid-2004. It is now developed by NASA staff and open source community developers.
At its simplest you can think of World
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Wind as a desk globe, however World Wind is not a simple desk globe.
World Wind allows any user to zoom from outer space into any place on Earth. World Wind uses satellite imagery and elevation data to allow users to experience Earth terrain in visually rich 3D, just as if they were really there.
World Wind can also be expanded to include additional imagery and data.. There have already been a number of add-ons created, from Norway's Prehistoric Hillforts to additional planets. [Less]
OSSIM provides advanced geo-spatial image processing for remote sensing, photogrammetry, and Geographic Information Systems. Backed by an active open source software development community, OSSIM solutions have been deployed on a number of critical commercial and government systems.
MapBuilder is a powerful, standards compliant geographic mapping client which runs in a web browser.
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
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inspection, map tips, and operations such as buffer, 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]
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
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, robust implementation of fundamental 2D spatial algorithms
* JTS is fast enough for production use
* JTS is written in 100% pure Java(
* JTS is open source (under the LGPL license) [Less]
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.
gvSIG is a tool oriented to manage geographic information. It is characterized by a user-friendly interface, with a quick access to the most usual raster and vector formats. In the same view it includes local as well as remote data through a WMS, WCS
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or WFS source.
It is aimed at users of geographic information, whether professionals or civil servants (city councils, councils, regional councils or ministries) from any part of the world (its interface is in several languages), in addition to being free. [Less]
MapFish is an easy-to-use and extensible web GIS application.
MapFish is composed of two parts: MapFish Client and MapFish Server. MapFish Client is a JavaScript framework based on OpenLayers for the mapping part, and on ExtJs for the GUI
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(widgets) part. MapFish Server is Python framework based on Pylons.
MapFish is intended to be easy to use either as a standalone application or as an addon to an already existing web application.
As a standalone application, MapFish offers ways to simply configure some parameters and quickly have a working web-GIS. But MapFish can also be simply included in an already existing website such as CMS or Information System oriented applications. [Less]
The Shapefile C Library provides the ability to write simple C programs for reading, writing and updating (to a limited extent) ESRI Shapefiles, and the associated attribute file (.dbf).
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.
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
Marble is a Virtual Globe and World Atlas that you can use to learn more about Earth: You can pan and zoom around and you can look up places and roads. A mouse click on a place label will provide the respective Wikipedia article.
Marble is also a
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light weight generic geographical map component for use in your own Qt 4.x / C++ application. It is provided as a library, a QWidget and a KDE 4 KPart and hence can easily get integrated with KDE 4 or Qt 4 applications. By default MarbleWidget shows the earth as a sphere but doesn't make use of any hardware acceleration. [Less]