Geometry Plugin

The Geometry module creates and manipulates geometric objects such as Points, Curves, and Surfaces. Users of this module can assemble the factories needed to create the various objects they will use, use the factories to make the objects, and then manipulate the objects directly.

Maven:

<dependency>
  <groupId>org.geotools</groupId>
  <artifactId>gt-geometry</artifactId>
  <version>${geotools.version}</version>
</dependency>

Volunteer Needed

This module currently has support for 2D objects; with the addition of 2.5D and 3D pending a willing volunteer.

Internally some of the operations are a fork of the Java Topology Suite code base, since this is also an LGPL project we are within the license restrictions of the JTS project.

The module was created in 2007 with an initial implementation of 2D objects completed by late summer 2007. Hopefully this module will eventually become one of the core implementations used by the GeoTools library.

This module is not currently “hooked-up” to anything in GeoTools, however the GeoTools feature module can support additional geometry implementations such as ISO Geometry if people are willing to put in the effort.

Note

ISO 19107 Geometry Interfaces

The geometric objects in this module are implementations of the gt-opengis Geometry interfaces which are realisations of the ISO 19107 Geometry schema.

Users of the objects created by this module should therefore make instances using factories and then use only the methods defined in the gt-opengis javadocs to avoid accidentally depending on any specific implementation details.

Maven:

<dependency>
  <groupId>org.geotools</groupId>
  <artifactId>gt-geometry</artifactId>
  <version>${geotools.version}</version>
</dependency>

Contents

• Build Geometry
• Operations