/// <summary>
/// find difference between current heading and course heading
/// </summary>
/// <param name="targetMark"></param>
/// <param name="previousMark"></param>
/// <param name="current"></param>
/// <param name="previous"></param>
/// <returns></returns>
private double RelativeAngleToCourse(Mark targetMark, Mark previousMark, CoordinatePoint current, CoordinatePoint previous)
{
if (previousMark != null && targetMark != null)
{
float courseAngle = (float)AngleUtilities.FindAngle(targetMark.Location.Project(), previousMark.Location.Project());
float boatAngle = (float)AngleUtilities.FindAngle(previous.Project(), current.Project());;
return(AngleUtilities.AngleDifference(courseAngle, boatAngle));
}
else
{
return(0);
}
}
public void Reset()
{
//SetOffsets();
if (_race.Course.DirectionType == Course.WindDirectionType.ConstantManual)
{
_windAngle = (float)_race.Course.ManualWindAngle + (3f * MathHelper.PiOver2);
}
else if (_race.Course.DirectionType == Course.WindDirectionType.ConstantCourse)
{
if (_race.Course.WindFromMark != null && _race.Course.WindToMark != null)
{
CoordinatePoint from = _race.Course.WindFromMark.AveragedLocation;
CoordinatePoint to = _race.Course.WindToMark.AveragedLocation;
_windAngle = (float)AngleHelper.FindAngle(to.Project(), from.Project());
}
}
_renderer.Reset();
}
