OpenCPN/OpenCPN — pull request #180 by jongough (2014-11-04 06:22:58+00:00)
Title: Magnetic cog

This update to the dashboard_pi allows selection of Magnetic COG for display. It is in response to Flyspray FS#1558.

I used OCPN on our winter trip up the Australian coast and I found the COG being in True whilst the route in Magnetic was rather confusion. This modification should make the displays more consistent.