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!