JTS Topology Suite 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, robust implementation of fundamental 2D spatial algorithms
- JTS is written in 100% pure Java
- JTS is open source (under the LGPL license)
Last version is 1.5 from september 2004. It’s a thurstful partner for developing Java GIS applications.