There are three main options for display orientation:
North Up
(for planning),
Course Up
(for navigating with a GPS) and
Chart UP (for skewed charts). With Course Up OpenCPN uses COG (Course Over Ground). A head Up mode, is not available. The easiest way to change between these two modes is through the “Right Click” menu. One situation where course up might be considered is when navigating a river or a canal. The third orientation is when skewed charts are displayed, they are simply shown as “
Chart Up”, but an optional setting exists to show them as “
North Up”.