Toolkit for working with and mapping geospatial data
GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data.
GeoTools is an Open Source Geospatial Foundation project.
The GeoTools library data structures are based on Open Geospatial Consortium (OGC) specifications.
TopicMapTools allows the creation, manipulation and visualization of XML Topic Maps. It is based on the TM4J framework. The editor can be used in genealogy for the visualisation of e.g. family trees.