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Module Maintainer:

Bryce Nordgren



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Mission Statement


JTS Geometry provides mission critical implementations of ISO 19107 GeoAPI interfaces backed by the Java Topology Suite, empowering other GeoTools modules to migrate off of direct dependency on JTS.

Module Summary

This module is an implementation of the ISO 19107/OGC Topic 1 geometry interfaces, backed by the Java Topology Suite (JTS). As such, it is closely tied to the corresponding interfaces in the GeoAPI project and may be vulnerable to change.


  • Java 1.4
  • JTS 1.4+ (JTS 1.4 and 1.7 are known to work)
  • GeoAPI 2.0 (Java 1.4 version)
  • GeoTools Main Module (for BasicFactories)

Note that the direct dependencies on other GeoTools modules are primarily for the factories, which instantiate GeoAPI implementations. This module could be further isolated from the rest of GeoTools if it had some self-contained method of locating factories in other modules.

IP Issues

What needs to be done to "bless" this module? Can this be offloaded to some legal beagle?

Recent Development

For the 2.3.x branch the JTS Geometry module has:

  • Been donated by Sys Technologies, inc.
  • Been refactored into the GeoTools namespace by Colin Combe
  • Been reviewed by Bryce.

Module Status

The JTS Geometry module is new code for 2.3.x. It is currently attached to issue GEOT-414. It will be committed to a branch in subversion early next week...

Outstanding Issues

Issues pertaining directly to this implementation:

Type Key Summary Assignee Reporter Priority Status Resolution Created Updated Due

Potentially relevant issues pertaining to the GeoAPI interfaces implemented by this code:

Type Key Summary Assignee Reporter Priority Status Resolution Created Updated Due


This code was originally written by employees of Sys Technologies, Inc., and has been donated to GeoTools/Open source. This code was refactored into the Geotools namespace by Colin Combe.

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