a GIS data viewer as well as an excellent vehicle for publishing your data. You can distribute the ArcExplorer setup and your data on CDs. Users can then use the CD to install ArcExplorer on their machines and view your data easily and effectively. And be
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
This real-time seismic monitor shows earthquake epicenters for today, yesterday, past 2 weeks and past 5 years. The size of the displayed earthquake circle is proportional to its magnitude.
O Instituto Geográfico Português (IGP), integrado no Ministério do Ambiente, do Ordenamento do Território e do Desenvolvimento Regional, é o organismo responsável pela execução da política de informação geográfica.
a Free C++/Python GIS Toolkit for developing mapping applications. Above all Mapnik is about making beautiful maps. It is easily extensible and suitable for both desktop and web development.