Introduction | Projection detection | Installation | Using the tool | Samples | Supported projections | References
Installation
1. Download and install Java, JDK 25
| File | Version | Size | ORACLE |
| Java Windows x64 Installer | 25 | 182.29 MB | download |
2. Download detectproj software:
The detectproj software is distributed under the GNU/GPL2 license. No installation required. Just double click on the JAR file.
| File | OS | Version | Release date | Size | Local |
SourceForge | github |
| JAR archive | Win 10-11, GNU/Linux, MacOS | 1.3 | 01/2026 | 135 378 333 | download | download | download |
3. Download early maps:
Several early maps for testing the software:
| Map title | Author | Size | Map (JPG) |
| L'Europe sous l'Empire de Charlemagne ou tableau historique de cette partie du monde. | Huber, A. | 5.6 MB | download |
| Novus Orbis Sive America Meridionalis Et Septentrionalis. | Seutter, M. | 2.7 MB | download |
| Typus orbis terrarum. Ab. Ortelius describ. cum privilegio decennali 1587. | Ortelius, A. | 6.8 MB | download |
Thousands of early maps in the digital form are available from:
- David Rumsey Historical Map Collection,
- Library of Congress,
- Map collection of the Charles University.
SW detectproj on SourceForge:
The project page of detectproj on SourceForge can be found here.
SW detectproj on GitHub:
Download the source code of detectproj:
- Java version 1.3 from the github repository.
- C++ version 1.1 (without graphics) from the github repository.