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Sight (GIS)
Sight is a GIS to archive old sites with archeological notes....
GRASS GIS
Geographic Resources Analysis Support System....
geographic resources geographic resources analysis support system geographic resources
Quantum GIS
A desktop geographic information system application...
information geographic information geographic system vector formats
SAGA GIS
SAGA GIS (System for Automated Geo-scientific Analysis) is a geographical information system (GIS)....
geographical GIS geographical information geo-scientific analysis automated analysis
GIS Knoppix
GIS-Knoppix is a bootable Linux CD with pre-installed GIS software....
GIS::Distance::Polar
GIS::Distance::Polar can do Polar coordinate flat-earth distance calculations....
calculations distance flat-earth distance Polar coordinate distance calculations
GIS::Distance::Vincenty
GIS::Distance::Vincenty Perl module contains Thaddeus Vincenty distance calculations....
Perl module distance calculations Thaddeus Vincenty Thaddeus Vincenty
PostGIS
PostGIS is GIS extensions to the PostgreSQL relational database server....
GeoAlchemy
Using SQLAlchemy with Spatial Databases...
ORM GIS GEO Spatial Databases Geographic Information Systems
PloneWorldKit
PloneWorldKit project is an out-of-the-box GIS for the Web....
gvSIG
gvSIG is an easy to use Java desktop GIS....
geographical GIS geographical information GIS software Java GIS
TreeSap
TreeSap is a tool that introduces a simple querying, that uses English phrases instead of numerical measurements....
Feature Data Objects
Feature Data Objects (FDO) Data Access Technology is an API for manipulating geospatial information....
SpatiaLite
SpatiaLite is a library for geographic information systems (GIS) that implements the core OpenGIS specification....
information geographic information geographic GIS GIS library
GtkGis
A Gtk+ widget to embed basic GIS functionalities inside applications...
CartoWeb
CartoWeb is a comprehensive and ready-to-use Web-GIS....