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detectproj download for Linux

Free download detectproj Linux app to run online in Ubuntu online, Fedora online or Debian online

This is the Linux app named detectproj whose latest release can be downloaded as detectprojv2j.jar. It can be run online in the free hosting provider OnWorks for workstations.

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New scientific software supporting the automated detection of the early map projection and its parameters. Useful for studying and analysis of different kinds of maps with the lack of information about the map projection.

The analysis is based on the minimization of residuals between control points on the early and current reference maps.

Designed for cartographers as well as for enthusiasts.
Available free of charge.

The awareness of the map projection is primarily important for:

• refinement of spatial georeference for the medium- and small-scale maps,
• analysis of the knowledge about the former world,
• location of the incorrectly/inaccurately drawn map regions.

Sytem requirements:
• 2 GHz or faster 32-bit (x86) or 64-bit (x64) processor.
• 2 GB RAM (32-bit) or 4 GB RAM (64-bit) system.
• 120 MB available hard disk space.
• JDK 1.8 +.
• Internet connection (download speed > 2Mb/s


  • more than 100 map projections are supported,
  • detection of the projection name and its family,
  • reproject the analyzed map into the destination projection
  • estimation of the normal/transverse/oblique aspect of the projection,
  • detection of true parallels lat_1, lat_2,
  • detection of the central parallel shift lon_0
  • estimation of the map scale, map rotation (optional),
  • 2 detection methods (M7, M8),
  • 3 optimization techniques (hybrid BFGS, NM, DE),
  • fast detection in the separate thread,
  • two map windows side by side,
  • Open Street Map client as the reference map,
  • drag and drop operations,
  • add/edit/delete control points,
  • list of candidate projections sorted by the residuals,
  • visualization of the detected parameters and residuals,
  • import/export of control points,
  • export reconstructed graticules in DXF,

User interface

Java Swing

Programming Language

C++, Java

This is an application that can also be fetched from https://sourceforge.net/projects/detectproj/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.

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