GEOS
GEOS
http://geos.refractions.net
'GEOS' is a C++ implementation of the functions and predicates defined in the OpenGIS "Simple Features for SQL" specification. It includes high quality implementations of all important spatial relationships and operations, robust versions of all functions in the dimensionally extended 9 intersection predicate model, and implementations of the operators Buffer(), Union(), and Intersection() and all other SFSQL functions including Area(), Length(), Centroid(), etc.
Documentation
Developer API documentation available in HTML format from http://geos.refractions.net/ro/doxygen_docs/html/
Related Projects
Download
Download 
version 2.1.3
(stable)
released on 5 July 2005
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Licensing
| License | Verified by | Verified on | Notes |
|---|---|---|---|
| LGPLv2.1 | Janet Casey | 5 October 2004 |
Leaders and contributors
| Contact(s) | Role |
|---|---|
 Sandro Santilli | Maintainer |
Resources and communication
| Audience | Resource type | URI |
|---|---|---|
| Developer | mailto:geos-devel@geos.refractions.net |
Software prerequisites
This entry (in part or in whole) was last reviewed on 7 January 2008.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
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