private void UpdateForFollow2()
{
var firstboat = _world.Find <Boat>().First();
if (null == firstboat)
{
return;
}
var waypoint = firstboat.Autopilot.WayPoint;
if (null == waypoint || waypoint.Reached)
{
return;
}
var vector = new AngularVector(firstboat.Location, waypoint.Location);
var boattohalfway = new AngularVector(vector.Bearing, vector.Distance / 2);
LookAt = firstboat.Location.GreatCircle(boattohalfway);
var lookattocamera = new AngularVector(new Bearing(vector.Bearing + Angle.Pi), 3 * boattohalfway.Distance);
var location = LookAt.GreatCircle(lookattocamera);
var altitude = 3 * Ball.EarthSurfaceApproximation.Distance(lookattocamera.Distance / (2 * Angle.FromDegrees(45).Cos()) * Angle.FromDegrees(45).Sin());
Location = new Tuple <Coordinate, Length>(location, altitude);
}
private void UpdateForFollow1()
{
var firstboat = _world.Find <Boat>().First();
if (null == firstboat)
{
return;
}
var waypoint = firstboat.Autopilot.WayPoint;
if (null == waypoint || waypoint.Reached)
{
return;
}
var vector = new AngularVector(firstboat.Location, waypoint.Location);
var boattocamera = new AngularVector(new Bearing(vector.Bearing + Angle.Pi), new Bearing(Ball.EarthSurfaceApproximation.Arc(Length.FromMeters(15))));
var boattohalfway = new AngularVector(vector.Bearing, vector.Distance / 2);
LookAt = firstboat.Location.GreatCircle(boattohalfway);
Location = new Tuple <Coordinate, Length>(firstboat.Location.GreatCircle(boattocamera), Length.FromMeters(3));
}
private void UpdateLocation(Time elapsedtime)
{
Length distancetravelled = Speed * elapsedtime;
var v = new AngularVector(Bearing, Ball.EarthSurfaceApproximation.Arc(distancetravelled));
Location = Location.GreatCircle(v);
}
public void EarthShouldCreateAngularVectorFromCartesianVector()
{
var cartesianvector = new CartesianVector(Length.FromMeters(0), Length.FromMeters(1));
AngularVector angularvector = Ball.EarthSurfaceApproximation.AngularVector(cartesianvector);
Assert.IsTrue((angularvector.Bearing.Abs() - Bearing.North.Abs()).Abs() < Angle.FromDegrees(1e-6));
cartesianvector = new CartesianVector(Length.FromMeters(1), Length.FromMeters(0));
angularvector = Ball.EarthSurfaceApproximation.AngularVector(cartesianvector);
Assert.IsTrue((angularvector.Bearing.Abs() - Bearing.East.Abs()).Abs() < Angle.FromDegrees(1e-6));
}
public void EarthShouldCreateCartesianVectorFromAngularVector()
{
var angularVector = new AngularVector(Bearing.North, Angle.FromDegrees(1));
CartesianVector cartesianVector = Ball.EarthSurfaceApproximation.Cartesian(angularVector);
Assert.IsTrue(cartesianVector.X == Length.Zero);
Assert.IsTrue(cartesianVector.Y > Length.Zero);
angularVector = new AngularVector(Bearing.East, Angle.FromDegrees(1));
cartesianVector = Ball.EarthSurfaceApproximation.Cartesian(angularVector);
Assert.IsTrue(cartesianVector.X > Length.Zero);
Assert.IsTrue(cartesianVector.Y < Length.FromMeters(1E-10));
}
public void ShouldVectorGreatCirclesWell()
{
var vector = new AngularVector(Ourhouse, PointRobertsMarina);
Coordinate newlocation = Ourhouse.GreatCircle(vector);
Length distance = Ball.EarthSurfaceApproximation.Distance(newlocation, PointRobertsMarina);
Assert.IsTrue(distance < Length.FromMeters(.5));
vector = new AngularVector(Ourhouse, MammasHuis);
newlocation = Ourhouse.GreatCircle(vector);
distance = Ball.EarthSurfaceApproximation.Distance(newlocation, MammasHuis);
Assert.IsTrue(distance < Length.FromMeters(.5));
}
public void ShouldVectorRhumbWell()
{
var vector = new AngularVector(Ourhouse, PointRobertsMarina);
Coordinate newlocation = Ourhouse.Rhumb(vector);
Length distance = Ball.EarthSurfaceApproximation.Distance(newlocation, PointRobertsMarina);
Assert.IsTrue(distance < Length.FromMeters(.5));
vector = new AngularVector(Ourhouse, PottsburgCrossing);
newlocation = Ourhouse.Rhumb(vector);
distance = Ball.EarthSurfaceApproximation.Distance(newlocation, PottsburgCrossing);
Assert.IsFalse(distance < Length.FromMeters(.5));
}
public CartesianVector ToCartesian(Coordinate coordinate)
{
var vector = new AngularVector(_modelcenter, coordinate);
return(_earth.Cartesian(vector));
}
