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PostGIS

Claimed by OSGeo - The Open Source Geo... Analyzed 32 minutes 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.

748K lines of code

9 current contributors

about 19 hours since last commit

187 users on Open Hub

Very High Activity
4.80392
   
1 Review
I Use This
Mostly written in C
Licenses: gpl
Tags database gis opengis spatial sql

GEOS

Claimed by OSGeo - The Open Source Geo... Analyzed about 2 hours 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().

236K lines of code

16 current contributors

27 days since last commit

41 users on Open Hub

Moderate Activity
4.5
   
0 Reviews
I Use This
Mostly written in C++
Licenses: lgpl
Tags c++ geometry gis jts osgeo spatial