https://github.com/orbisgis/cts

Projection library in Java
https://github.com/orbisgis/cts

coordinate-transformation geography library

Last synced: 2 months ago
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Projection library in Java

• Host: GitHub
• URL: https://github.com/orbisgis/cts
• Owner: orbisgis
• License: lgpl-3.0
• Created: 2013-03-28T14:38:19.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2025-09-18T11:56:46.000Z (4 months ago)
• Last Synced: 2025-09-18T12:40:42.860Z (4 months ago)
• Topics: coordinate-transformation, geography, library
• Language: Java
• Size: 5.63 MB
• Stars: 51
• Watchers: 4
• Forks: 17
• Open Issues: 8
• Metadata Files:
  • Readme: docs/README.md
  • License: LICENSE.md

Awesome Lists containing this project

• awesome-projections - Coordinate Transformation Suite (abridged CTS)

README

          
# CTS 

[![GitHub](https://img.shields.io/github/license/orbisgis/cts.svg)](https://github.com/orbisgis/cts/blob/master/docs/LICENSE.md) 

[![Codacy Badge](https://api.codacy.com/project/badge/Grade/d9b34e00264d4702b8340f8544cec21f)](https://www.codacy.com/gh/orbisgis/cts?utm_source=github.com&utm_medium=referral&utm_content=orbisgis/cts&utm_campaign=Badge_Grade)

Coordinate Transformation Suite (abridged CTS)  is a library developed to

perform coordinate transformations using well known geodetic algorithms and

parameter sets.  It strives to be simple, flexible and interoperable, in this

order.

#### History

Originally developed by Michaël Michaud under the name [JTransfoCoord](http://michael.michaud.free.fr/index_geodesie.html) and then JGeod, the library was

renamed to CTS in 2009.  Today CTS is maintained by the OrbisGIS team in

collaboration with Michaël Michaud.

The new CTS has been funded by the French *Agence Nationale de la Recherche* (ANR) under

research contract ANR-08-VILL-0005-01 and the regional council of the *Région Pays

de La Loire* under the *Système d'Orbservation Géographique de la Ville*

(SOGVILLE) project.

#### License

CTS is free software; you can redistribute it and/or modify it under the terms

of the GNU Lesser General Public License as published by the Free Software Foundation,

either version 3 of the License.

CTS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

PURPOSE.  See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with

CTS.  If not, see .

#### Declaring project dependencies

You can include CTS in your project thanks to Maven repositories.

From maven central, check https://search.maven.org/artifact/org.orbisgis/cts/1.7.1/bundle

To use the current snapshot add in the pom

```xml

  orbisgis-snapshot

  OrbisGIS sonatype snapshot repository

  https://oss.sonatype.org/content/repositories/snapshots/

```

and the following dependency

```xml

    org.orbisgis

    cts

    1.7.2-SNAPSHOT

```