Emmanuel Chambon

Control Systems Engineer & Amateur Sailor


This is the name of a Windows application I am working on in my spare time. The objective is to develop a navigation software using OpenStreetMap and OpenSeaMap tiles with the ability to:

  • Download GRIB files;
  • Compute optimal trajectory for the current Ship vs winds and currents;
  • Receive GPS signal from an antenna connected to the PC;
  • Still allow classical navigation methods like marks bearing and celestial navigation;
  • MOB feature.

LeONAR is in its very early stages of development. It is currently limited to:

  • OpenStreetMap and OpenSeaMap overlay display using OpenLayers;
  • Cefsharp component cache activated allowing offline map display;
  • GNSS antenna RMC messages parsing;
  • User position/heading display and update, with lock on feature.

Development language is VB.NET with CefSharp component running HTML5/CSS/JS. Future versions are expected to be multi-platform using Electron.

More to come!

August, 18th 2020

LeONAR (August, 18th 2020)

July, 27th 2020

LeONAR (July, 27th 2020)

July, 24th 2020

LeONAR (July, 24th 2020)

July, 14th 2020​

LeONAR (July, 14th 2020)

June, 24th 2020​

LeONAR (June, 24th 2020)

June, 14th 2020

LeONAR (June, 14th 2020)

June, 8th 2020

LeONAR (June, 8th 2020)

May, 24th 2020

LeONAR (May, 24th 2020)